Tag: repair

Canon AL1 QF

It wouldn’t take a rocket scientist to understand why this camera isn’t working.

What the listing stated:

This camera is untested, I put batteries in but it did nothing but to be honest, I have no idea what I’m doing with this anyway. For that reason I’m selling as spares or repairs. For its age, it is in really good condition, please look at the pictures carefully and message with any questions. 

EBay

The camera I have brought with a large but unknown lens – and the corroded battery area

Hmmm, the seller put batteries in and wondered why it wouldn’t start up…I wonder 🤔

By the way, the QF stands for quick focus. Read on to find out more.

I’ve purchased this camera, paying a measly £12:00GBP, as I move ever closer to collecting the full range of the Canon “A” series cameras. This will be my fourth of the range with only two more to go. As usual I have purchased damaged or faulty candidates to repair via my site. This one is no different, and from what I can see the battery barrel and battery door have been exposed to corrosion and neglect. this will require a lot of attention, and hopefully the corrosion hasn’t made it into the internal components.

I believe it also comes with a yet unidentified large lens, that I very much suspect will be riddled with lens fungus if the battery chamber is anything to go by.

Here’s a little history about this Camera:

The Canon AL-1 was an FD mount, 35mm single-lens reflex camera introduced in March 1982. Its main feature was the “Quick Focus” focus-assist system that was aimed at those who had trouble focusing through the viewfinder – either novices, or those with poor eyesight – and was intended to head off competition from the first full-autofocus cameras from other manufacturers, such as the Pentax ME F.

As a lower-end camera, the AL-1 did not offer a long list of features. Instead, Canon focused on providing core functionality and lowering price. The AL-1 provides focus-confirmation, aperture-priority autoexposure (controlled by a through-the-lens silicon photocell), manual shutter speeds from 1/15 to 1/1000 of a second, and a 10 second self-timer. It also added a larger grip, and the convenience of using of AAA cells for power. However the battery door is one of its weakness as most of the cameras that are found today on the market have a battery door that is broken or has been replaced. Its body was constructed from a special polycarbonate that was then painted to imitate metal. An ISO hotshoe, A-series power winder connections, and cable-release socket provide an acceptable level of compatibility with accessories. It was also the last Canon SLR to use the Canon logo, which resembles the Japanese romaji font used on Canon cameras since the 1960s on a pentaprism.

The camera uses Canon’s breech-lock FD mount, and so users could choose from the wide variety of Canon FD lenses, as well as those from third parties. Users could also utilise Canon R and FL lenses, but with some limitations.

In 1987, Canon abandoned the FD mount in favour of the EF mount along with the EOS camera system, which uses the same concept as the T80 but with a new and incompatible mount designed around an all-electronic interface.

Wikipedia

Assessment:

The camera has arrived. The lens that came with it is a canon mount “Sirius” 28-200mm 1:4.0-5.6. It does have signs of fungal infection and I’m not going to do anything with it at the moment, as I have a few stock 50mm lenses I can use for testing. I may get around to cleaning the lens in the mid to near distant future, if I get the time or to be totally honest, if I can really be bothered. It will probably become another post of the future.

The lens that came with the camera

On opening the battery door you can see that the contacts are quite oxidised, and definitely require a clean. The battery chamber also needs a clean as do the contact springs at the base of the battery chamber, we need to do this as we require electrical continuity to check the cameras operation.

Oxidised door contacts
Dirty battery chamber and oxidised spring contacts

I have tried inserting a couple of AAA batteries after first giving the door contacts a quick rub, however I had no luck, and no power was getting through to the camera, and that’s what we need to be able to attain, just to be able to do the basics on this unit. So it will need quite a considerable clean prior to putting in new power cells.

Inside the lens barrel when you first glance the mirror it looks as if it has shattered, however this is a special etching on the mirror that allows light through to a sensor placed behind the mirror that supplies information to the QF (Quick focus) system built into this camera.

The specially etched QF mirror
The QF sensor behind the mirror

This camera does not have the typical split screen focus you find within most cameras of this age. All it has is a small rectangular two piece shape on a ground screen and that is it. This is where the QF comes in to play. You have to depress the shutter button down half way as you focus. As you focus, the viewfinder will display the exposure ratings to the right hand side of the viewfinder.

Viewfinder display info

At the bottom of the viewfinder screen is where the QF is calculated. As you focus you will see either one of two red arrows indicating that you focus the lens in the direction to which they are pointing. When the arrows extinguish and a green circle illuminates, that means the correct focus has been achieved. If you are happy with this and your shutter speed is not too slow and sits within the correct exposure zone, then go ahead and take your photo. it really is quite simple. A great system for those wearing glasses or for those with eyesight problems.

I have also noticed whilst testing the advance lever and shutter, that the take up sprocket moves freely in either direction, and this shouldn’t be occurring. The sprocket will wind the film onto the film collection point and then remain set, not allowing film to roll back and maintaining a taut film base across the rear of the shutter. It appears the rewind button at the base is pushed in permanently, and this would allow free movement of the sprocket whilst rewinding the film after use. There is an issue here that needs addressing.

Depressed rewind button
Freewheeling take up sprocket

The camera itself is in a good condition cosmetically and considering its age, approx 43 years old, its condition is quite acceptable.

The camera in question

It is however very dusty and dirty and will need quite a deep clean.

I shall be leaving that big lens to one side for the purpose of testing, and will be using a standard 50mm FD stock lens for ease of movement.

Repair:

As we need power before we can do anything, my only option is to head straight for the battery chamber. I’m going to have to take the base off of the camera as there are a couple of issues that require its removal. The first will allow me a good unhindered access into the battery chamber and allow removal of the battery door that is contaminated with either battery acid or oxidisation. The second will allow me to attend to that take up sprocket issue and the depressed rewind button. I may even do some light cleaning and lubrication within this area.

These cameras are notorious for the issue around the battery door failing. It has always been a problem around the latching mechanism, it fails and there are then a number of options to secure it ranging from elastic bands to custom made pieces of metal to sit on the base. There is a German company offering a 3D printed option for a replacement but it comes at a price in the range of three times the amount that I paid for the camera, so I won’t be venturing there. My battery base door does seem to be ok at the moment, the latch appears to be ok, the only issue being that the metal contact plate has come off the plastic door frame, as it was only held on with three plastic welds. It does allow me to clean the plate somewhat, however I now have to consider how I put it back into place, either I reweld, glue or screw. I could always use a Canon power winder that would also solve this issue. If I had the space at home and could set up my own 3D printer that I have had at home since my birthday earlier in November, boxed up in the corner of the living room, then maybe I could print my own? Either way I need the door free from the camera so as not to cause any further damage to it.

The plate has fallen off
Latch and spring needs cleaning
After a good soak
Soaking in a vinegar solution

I have given a clean to the oxidised plate, by soaking it for a few hours in vinegar, that has lifted a lot of the dirt and oxidised material. I have cleaned it with IPA and then tested its continuity with a multimeter and the plate does have a good continuity across most of its surface. I’m going to just give a final buff with some fine sandpaper to improve its appearance and to ensure continuity across its surface is as good as it can possibly be. When I have achieved that, a good clean of the inner door and latch and spring will be carried out prior to its reassembly.

I’ve had the base off of the camera so I can carry out some maintenance to the battery rewind button and the top of the battery chamber. The battery door has been removed, cleaned and will shortly be reassembled and put back into place.

Top of battery chamber removed
Inside the battery chamber
The rewind button highlighted in red
Rubber grip removed for access

The rewind button is confusing me as it looks as if nothing is wrong, but I’m sure it is. I have made some minor adjustments to tension screws and the spool rewind without any improvement. I’ll come back to this later.

Cleaning the battery chamber
The dirt on the cotton buds
A nice clean chamber

I have affixed the metal battery plate to the battery door using a small amount of superglue. I have bent the door latch spring a little to give it a bit more strength allowing the door latch to click into its stop position a lot more securely, hence the batteries will not be able to force the door open as they did previously.

Plate stuck back in place
Attached to the door latch housing
Before door latch housing attached
Assembly attached
Door closed and secure

Next thing is to get the rubber hand grip back in place. For this I have used some contact adhesive.

Hand grip glued
Hand grip now in place

I’ve rechecked what I thought was an issue with the film rewind button, and it isn’t a problem, it is working absolutely fine and as it should be.

Test roll to prove rewind works

I’ve used an old test roll of film and as soon as the film is in place and winding, the bottom button pops out In theory locking the rewind spool so that it only winds towards the take up spool. When the base button is depressed, it clicks and allows you to rewind the film back towards the spool, it is working fine and was never an issue.

So the final job to do on this camera is to replace what is left of the light seals. There are eight pieces that need replacing on this camera, first I will hook the old seals out with a cocktail stick, I will then do this again with IPA to clean and remove the remaining bits, prior to cutting and installing the new seals.

Cocktail stick to remove old seals
Remnants of the old seal material

The light seals have all been replaced.

New light seals installed

To add a little bit of a finish, I have also 3d printed a hot shoe cover and an eyepiece. It tidies things up a bit.

This camera is now repaired.

Result:

I love the quick focus on this system as there is no split screen focus. Just focus in the direction of the arrows in the viewfinder and when in focus you get a green circle 🟢 brilliant. I just love seeing the development of new systems that were being used in these old cameras that today are just taken for granted. There was so much invested into R&D in those days.

Another old timer from the early 80s given a fresh lease of life. Another one out of landfill and back into use doing what it was built to do. I love these old cameras.

Many thanks for passing by. Always very much appreciated.

Chinon CE-5 35mm SLR and power winder

A heavily damaged Camera from 1981/2 needs some serious care and attention. A Chinon CE-5 35mm SLR.

Here’s what the listing stated:

Please review all photographs carefully as the images form part of the item description and provide the best representation of the items cosmetic condition & any included accessories Any significant flaws or relevant information will be shown below if applicable. Camera, lens and power winder are tested and working. Body and power winder show scuffs, scratches and paint wear to edges and base. Film rewind crank is damaged/loose and sits high on its spindle at a angle Light seal foam around the film door shows ageing and residue. Lens glass is clear with light dust only. Supplied as camera body with fitted 50mm f/1.7 lens and PW-545 power winder only; no caps, strap, batteries, film or manuals included. 

Brand: Chinon

Model: Chinon CE-5 35mm SLR film camera.

Colour: Black metal and plastic body with black leatherette grip panels and matching black power winder.

Type: Manual focus 35mm SLR film camera with pentaprism viewfinder and built-in light meter.

Format: Uses standard 35mm/135 film cartridges loaded via the rear-opening film door.

Lens: Auto Chinon Multi-Coated 50mm f/1.7 prime lens with aperture and focusing rings plus 49mm filter thread.

Focus: Manual focus operation through-the-lens optical viewfinder with focusing aids.

Exposure: Auto exposure and manual exposure modes with selectable shutter speeds and aperture control.

Features: Built-in light meter, hot shoe for external flash, self-timer, ISO/ASA speed dial and compatibility with electric drive units.

Power: Designed to be powered by batteries for the camera electronics and PW-545 power winder (batteries not included).

Included: Chinon CE-5 35mm SLR camera body, Auto Chinon 50mm f/1.7 multi-coated lens and Chinon PW-545 Power Winder S motor drive only; no caps, strap, batteries, film, case or manuals are included.

Country of origin: Camera and lens marked Japan.

Keywords: Chinon CE-5, 35mm SLR film camera, Auto Chinon 50mm f/1.7, PW-545 Power Winder S, manual focus, auto exposure, Japan

EBay

Probably one of the most descriptive listings I’ve encountered on EBay. This alone gave me some confidence in making this purchase, as rather than the standard “Not working” non descriptive listing, I actually have a good idea as to what the problems are here, and they can also be seen in the photos in the listing.

Front
Lens
Scuffs and loose covering
Wonky capstan
The camera I have purchased, showing peeling vinyl and a faulty rewind capstan

These units were on sale between 1981-82 in the Uk via the electrical goods store – Dixons. As a result, sales of this camera were probably not as good as if Chinon had gone out on a limb and promoted their own product. There was a lot of snobbery in the photo trade, and cameras from electrical good stores were looked on as “cheap” alternatives. However, they couldn’t have been more wrong as the quality was very high, maybe just a bit more plastic than some would like, and the lenses were equal or more advanced than a number of other lens brands available at the time.

I was just starting out in photography, I had my first job in 1982 at a colour laboratory in Bushey, Hertfordshire Uk at this time, and saving my money meant I was able to purchase this very combo I have purchased today for a total of £28:00GBP with free postage, after negotiating down the sellers original asking price of £39:00GBP.

Back in 1981-82, i believe the package for the lens and camera was about £110:00GBP with the winder coming in at about £40:00GBP. A total outlay of about £150:00GBP at the time. Considering I was probably only earning about £300:00GBP per month back then, it was closer to the end of 1982 that I purchased my combo, and by that time it was near to the end of its production run in the UK. There were AF lenses that were available as options that were so big they actually dwarfed the camera. The lens in this combo is the standard 50mm lens that it used to ship with. That said I loved the camera, it was easy to use, no fuss and the auto focus on the camera was way ahead of its time, even though I didn’t have the AF lenses to use. So far ahead of its time that it actually beat all the big players to the finish line. The big names caught on though and very soon they were flooding the market, the snobs were happy once again.

I had to offload that camera after I’d given it some good usage. Computers were appearing on the scene and the money I made from selling it went towards my first computer purchase, a Sinclair ZX81.

I wish I’d kept the camera…..

No panic though as I now have another one to revisit those heady days of 1981-82. It just needs some attention.

Here’s some info about the CE-5:

The Chinon CE-5 was a 35mm SLR camera produced by Chinon, that was one of the first cameras to have autofocus-capable lenses produced for it. It was produced for about 12 months between 1981-1982.

Specifications

The camera had a Pentax K mount (addressed to in the specifications as the Chinon “universal mount”) with which its lenses were mounted. 3 autofocus pins were present upon the top-left of the mount, which the autofocus lenses interfaced with. These autofocus lenses were rather heavy and depended upon their own large, lens-mounted motors.

The camera had two modes: aperture-priority and full manual. The shutter speeds ranged from 4 to 1/2000 seconds (stepless) in aperture priority mode and 2 to 1/2000 seconds in manual mode, in addition to a “bulb” mode. The shutter was controlled electronically in both modes; and was a Seiko electromagnetic metal focal plane shutter. A multiple exposure switch was also incorporated into the camera, alongside a 5 or 10 second self-timer. 

The CE-5 was shipped with a full ground glass screen along with a split image range finder and a microprism collar to aid focusing. Other screens were made available.

An “X sync” flash hotshoe was incorporated, with contacts especially for the Chinon range of dedicated flashes.

The camera had the dimensions 135.5mm width x 88mm height x 50.5mm depth and weighed approximately 490 grams without batteries and lens.

Wikipedia

I very much suspect that this camera has been dropped at sometime. Just looking at the sale photos tells me this. It appears the corner where the rewind capstan is situated has a cracked body top, the capstan pin is also bent, the ASA counter also appears to have some damage, its fair to say this camera has suffered impact damage to that very part of the camera.

Ok so I need to now wait for the item to arrive to carry out a full assessment. The good thing is that I do already have a non working donor available in my spares box to carry out a little bit of a Frankenstein operation if I need to, and i think that operation may well be required.

Assessment:

The camera arrived and I must admit I’d forgotten just what a hefty lump it is. It is quite a weighty beast. The camera is pretty much as described apart from missing one major issue. There is an issue with the shutter mechanism timing, but I’ll come back to that later.

The camera received

The top of the rewind crank is out of alignment and there is slight damage to the ASA ring beneath it. There are scuffs and scratches all over as described but in general it is not too bad cosmetically.

Crank and ASA ring damage

When I load two LR44 batteries into the camera base everything appears to work ok, the self timer works in the 5 second and 10 second mode, all indications work through the viewfinder and the shutter fires. However even though it fires it is at a slower, probably 100th of a second speed no matter what setting you have it in, Auto, 1/2000, or B setting it’s all the same. The B setting does not work at all, when the shutter is depressed the shutter springs open as it should, however it doesn’t shut when pushed again as it should, it remains open and you have to move the shutter speed ring to another setting for it to close again. There is a definite shutter speed fault that I suspect is as a result of this camera being dropped on one edge. Hence the damage to the area around the rewind capstan.

The lens is in a fantastic condition, showing no damage, it’s clean and free from mist and fungus.

The power winder is dead. It’s in a good cosmetic condition, but a quick look inside the battery chamber shows signs of battery contamination, hopefully I can resurrect this item.

The top case is cracked.

Repair:

First. I’ll print off a body cap to protect the lens barrel when cleaning, I’ll also print caps for the front and rear of the lens as well, that way everything is protected from any further disturbance.

Lens cap, body cap and rear lens cap printed

I’m going to start with the power winder as I now have it separated from the camera. There is a cartridge that inserts into the winder base that holds 4×1.5v AA batteries. The output therefore should be 6v but when the multimeter is used there is no voltage making its way through the cartridge. One of the cartridge contacts is tarnished and requires a clean. A quick buzz with my grinding tool cleans the contact and then a wipe over with a cotton bud soaked in IPA finished that clean. Batteries re installed and we now have continuity with a healthy 5.97v being supplied at the terminal ends.

Before (top) and after contacts are cleaned

However when installed in the chamber the winder is still non operational. A look into the battery chamber reveals further contamination on the contact inside that would mate with the contact I have just cleaned on the battery cartridge.

Further contamination

The power winder has to be dismantled quite considerably to access the contacts inside. You could probably do a clean without dismantling, however you will never know if any of the contaminants have gone beyond the contact. I tend to get into the machinery of things for piece of mind, and today I’m pleased I did as I was able to confirm that the contamination was only on the battery contacts.

Power winder dismantled
Contacts before and after
All gearing lightly oiled

I cleaned the contamination with a grinding pen and then cleaned the contacts with some IPA. A blow through with an air gun removed some old dust and debris from the handle area, and whilst in here I lightly oiled all the cogs and gears in the handle area.

We have life

I’ve partially reassembled the winder and put the battery back in place and we have power lights when switched on. I connect the winder to the camera and it works just fine. There are two settings (S) single shot and (C) continuous shot that fires a frame every two seconds approximately. All are functioning well and working as they should. I now clean the outer of the winder of old glue and adhesive, re glue and put all skins and label back into place. This repair is now complete. Onto the camera now.

With the camera the first thing I am doing is checking the rewind capstan. When unscrewed the screw and spindle are straight, the actual damage is with the plastic cap that is bent out of shape and split on one side. As I stated earlier I do have an old donor camera so I have taken the ASA dial and the rewind capstan off of that to replace the damaged items on this side of the camera. I will also replace the cracked top as well. I must admit it looks good and appears to be functioning at this point. I’ll have to have it all off again when I investigate the shutter speed issues. But for the meantime it’s a needed job completed.

How it now looks (left) and how it did look (right)

Now we need to look at the shutter timing issue.

It took a time to get the top off due to there not being a lot of information available about breaking these units down. However I now know how to, and this took the best part of an hour for me to achieve, I’ve replaced the cracked top with the one from the donor camera.

As soon as the top was off there were three issues that welcomed me, I suspect these all occurred as a result of that drop that damaged the ASA dial and the rewind capstan.

Firstly above the prism area there were what appeared to be three detached wires.

Red wires should be one and have been broken. Green wire is a rogue hot-shoe earth

In the photo above, you will see two red arrows. These wires they point to were once upon a time a single wire, somehow this wire has snapped. The wire that is indicated by a green arrow is a rogue earth wire that should be connected to the hot-shoe in the prism roof.

There was no way I was going to be able to route a new wire as it originated deep inside the body, and I just didn’t fancy going there today. Instead I melted the two ends slightly to expose some wire, I then used some multi core solder to tip the ends and as I had some room to move the wire slightly I joined the two ends back together with a solder joint. Once soldered I used some conformal coating to stabilise the joint, then covering it with a small piece of Kapton tape to ensure it was secure and not interfering with any other metal/components.

Soldered together, then conformal coating was used prior to being sealed with Kapton tape.

The rogue earth wire was then soldered back into place in the roof of the prism housing.

The issue with the speed settings appears to be as a result of disturbance, again related to that drop that caused the other issues. When the speed dial is removed you are left with a set of tracks with very fine copper contacts. One of these contacts is specifically for the “B” setting, it should sit shy of a contact point until it is required however from what I could see it was permanently activated, it didn’t look right so I adjusted it to sit properly, now when the dial is operated it switches in and out as it should. I don’t know how this affected the earlier tests that showed we only had one available speed, I can only presume the issue is a culmination of all the issues so far experienced.

At the top permanently on. At the bottom adjusted so it will switch in and out with operation of the dial

I have now commenced reassembly after giving a good blow through and a light clean of the contacts.

Batteries have now been installed and I’m reluctant to switch the camera on. But I have to, so I do. So far so good. I rewind the lever all good. I set the shutter to 2s and activate the shutter, it opens and then it shuts again about 2 seconds later, I move through the shutter settings and all appear to be reacting to their relative speeds, 125 sounds right, 2000 sounds very quick, they all are giving different speeds which is superb. And the “B” setting is now operational. This is fantastic. All indications in the viewfinder are as expected, and with the winder attached all systems are go. I think I’ve fixed it. Wow. I’m shocked.

Let’s get the light seals and bumper felt replaced now.

Bumper and light seals have now been replaced, an awful lot of felt came out of those grooves, I thought it would never stop coming

Shutter curtain covered
A lot of dirt came out after felt removed

I always apply light seals slightly dampened on the adhesive side as this gives you a few minutes to reposition the felt, prior to it setting and drying. I’ve got it down to a fairly quick process now, I’m not perfect but I’m improving with each new set of seals.

So this camera is now complete.

Result:

We now have a perfectly good operating camera and power winder with a nice clean 50mm stock lens for a reasonable layout of £28:00GBP. It had an awful lot wrong with it, but thankfully having a spare unit to harvest parts off has helped with this repair immensely.

The camera and power winder now working

A lovely camera, much maligned from the early 80s now working as good as it did from the box. I just can’t wait to get a roll of film through it to show just how good a camera this was and still is.

It weighs a ton, but that’s how I love and remember my old cameras, they are such beasts but have immense character and original design appeal that modern cameras just don’t have today.

Another camera saved from landfill. A good result.

Many thanks for passing by, you know it is always very much appreciated.

Nikon F50

A learning camera for me, with a fault I’ve never dealt with before. Damaged shutter curtain blades. Can I fix it?

What the listing stated:

NIKON F50 UNTESTED FOR SPARES OR REPAIR. SEE IMAGES. THE REAR SHUTTER RIBBON APPEARS TO BE LOOSE – I AM UNFAMILIAR WITH OLD FILM CAMERAS SO THIS COULD BE A QUICK FIX OR NOT AN ISSUE. ALSO HAVE A FRONT BODY CAP AND STRAP – COULD BE A BARGAIN FOR SOMEONE. SOLD AS SEEN.
+
The “Complete Users’ Guide: Nikon F50/N50” by John Clements is a comprehensive textbook published in 1994 by Newpro UK LTD. This paperback book, with 140 pages, provides detailed information on the Nikon F50/N50 cameras from the 1990s. Written in English, this guide is a valuable resource for photographers looking to enhance their knowledge and skills in using these specific camera models. The author’s expertise and clear instructions make this book a must-have for Nikon enthusiasts.

EBay

My purchase today

As you may have already gathered, and much to the dislike of my wife, I spend a lot of time trawling the sales for cameras. I don’t particularly look for anything high end, one of my main reasons to purchase is purely for learning purposes. So why not buy a lower end mass produced camera and fix it? That’s what I tend to do. It’s a good way to learn, and if you cause even more irreparable damage it’s no problem, you will still have a selection of usable parts. Damage someone’s pride and joy though and not only do you lose reputation, you would probably be severely out of pocket financially.

So I look for cameras with issues that I have not yet dealt with, and this camera has such a fault. It’s shutter blades have become detached from the frame in which they are set, it can be fixed if conditions are met, and one of those conditions are that the blades should not be creased. And I have my fingers crossed that this is the case. I’ve never fixed this issue before, so for me this is a learning camera. The bonus for me is that I get a body cap, a strap and an informative 140 page book on how the camera operates. And I paid the sum of £7:77 for this complete package.

Here’s a little info about the Nikon F50:

The F50 (or N50 as it is known in North America) is a 35mm film SLR camera which was introduced by Nikon in 1994. It was aimed at the lower end of the amateur autofocus SLR market.

The F50 features autofocus, TTL light metering and various “programs” (ranging from manual operation to a highly automated point and shoot mode). It could not however meter with non-CPU lenses.

It was replaced by the similarly-priced F60 (also known as the N60) in 1998.

The F50 body was made from polycarbonate and metal, and available in both “champagne silver” and black.

Notable omissions include depth-of-field preview and any form of remote shutter release.

Wikipedia

I’m now awaiting the arrival of the camera so I can carry out an in depth assessment. And prior to its arrival I’m reading up, and seeking advice on how to deal with such an issue as this shutter curtain damage.

Assessment:

On arrival it is quite clear that prior to its shutter blade damage this camera has been very well looked after. It has no damage, scratches or signs of wear across the entire camera. It has an original Nikon body cap and narrow strap. There is even a DK-5 viewfinder cap that is a rare thing to see on a second hand unit. Battery contacts are clean and contaminant free.

And the users guide that was also received is an absolute gem of information.

The camera I have received

Testing beyond this is not possible at all, as the last thing I want to do is insert a battery and cause further damage. I will have to try to sort the shutter blades before I can test any further.

So let’s get straight on with trying to sort out that mess in the lens barrel.

Repair:

Whilst awaiting the cameras arrival I’ve been seeking advice on how to approach this issue, as this is my first attempt at such a fault. And after a while, looking around I found this video tutorial that first came out in 2014. I have decided to follow the advice within this video.

Fix old cameras – shutter repair

The first thing I have to do is to modify a pair of tweezers that I will be using for this repair. Firstly I have to bend them at an angle.

Bent accordingly

Secondly I have to put some shrink tubing over the points, heat them so they adapt to the outline of the tweezers, and whilst warm just flatten the tips as this will be the surface that handles the blades.

Shrink tubing added and shaped

And to be honest, once I started it took all of less than 20 seconds. Here’s the proof

It worked, and the camera works

You may well be looking and thinking ooh! That looks dodgy, but believe me it works just fine. It’s been severely beaten up and it fell back into place quite easily. It doesn’t look pretty but I have tested the chamber with a very bright light and the front and the rear curtains are working well with each other and there is, or appears to be no light leakage. I will have to run a film through the camera but I am very confident that there will be no further issues.

With the 2CR5 battery in place I have been able to carry out the tests that were not possible earlier, and I’m pleased to report there are no other issues and this shutter blade fault was the only problem. This camera is now working just fine, all settings, buttons, dials and switches are working as they should, as is the self timer.

With a lens connected all focus indicators in the viewfinder are good, the flash operates as it should and the info screen is clear and readable.

This camera is good to go.

Result:

In the end this turned out to be a twenty second repair, my first of this type and it went exceptionally well. A camera of this quality for just £7:77GBP with a guide book as well. is exceptional value, and I’m sure someone is going to love and cherish this camera for years to come. I’m going to run a film through it first just out of curiosity, however, I am supremely confident that there are no issues with it.

Looking superb, working

Again we have a classic case that shows just how 30 seconds of activity can bring a camera back to life saving it from the scrap heap. And a lovely looking camera it is too. Once I have run a film through I’m going to pass this on, it’s a good beginner’s camera and I’m sure it will get a lot more use, and that’s always a good thing. If Nikon produced in excess of 150,000 of these units, then I wonder how many others have suffered a similar fault and just been tossed into landfill.

Scary thought… though this one has been given a pardon.

Thank you as always for passing by. It is always very much appreciated.

Nikon F-401 35mm SLR Film Camera

A nice little starter camera from 1987 sold as faulty when actually its operation was just misunderstood. Not so much a fix, just a lesson in why you should read instruction manuals.

What the listing stated:

Nikon F-401 35mm SLR Film Camera Body Only – Spares or Repairs. Unsure why it won’t work, I bought brand new batteries and it doesn’t want to power on. No exterior damage or scratches to suggest it’s been dropped. Battery compartment is nice and clean. Any further queries feel free to ask. Thank you for browsing.

EBay

The camera I have purchased

Known pretty much as a dollar camera, it’s a Nikon but aimed at the entry level, and is of a plastic construction. The dollar tag is generally used to say just how cheaply available it is. I paid a bit more than a dollar, I paid £4:00GBP, after knocking the seller down from the £12:00GBP he was originally requesting. Still a bargain I believe, will be a nice little starter camera for someone if I can get it working.

Here’s a little about this camera:

The Nikon F-401 (N4004 in North America) was a beginner’s level, autofocus, 35mm, single-lens reflex (SLR) film camera built by Nikon and introduced in 1987. The camera represented one of Nikon’s first endeavours into consumer-based autofocus, as a follow-up to their first autofocus SLR in 1986, the Nikon F-501 (known as the N2020 in North America). The camera lacked many of the advanced features that more seasoned amateurs and professionals required, but it was a harbinger of the future as it included a pronounced, built-in grip as well as an integrated TTL Flash that is now commonplace on all but the most high-end SLR cameras.

The F-401 introduced the now common-place feature of using a thumbwheel instead of lens aperture ring to adjust the aperture. Furthermore, the camera’s lack of support for AI lenses meant that while all previous Nikon lenses could be mounted to the camera, none supported automatic exposure TTL metering. 

An upgraded version the F-401S (also known as the N4004S) was released in April 1989. The F-401X (also known as the N5005) followed in September 1991.

By the 1990s, the F-401 was part of a lineup of autofocus consumer SLRs that included the more expensive Nikon F-601 and Nikon F-801.

Wikipedia

Looking on line at other F-401s that are for sale seems to highlight that power issues are a regular point of failure for these cameras. Let’s await its arrival so we can carry out a full assessment of this unit.

Assessment:

Here’s what has arrived today with the postman

The camera that arrived today

I’ve just sat at the kitchen table looking this camera over, and for £4:00GBP it’s a bargain. It’s very clean despite not having a body cap, there is only a tiny bit of paint damage near one of the strap connectors, apart from that this camera is in a very good (cosmetically) condition. A bit of a clean will take it to another level, however we will look at that once the fix has been done.

Fresh batteries installed

I have put 4 x AA batteries into the base of the camera and there appears to be no life in the camera. Contacts appear clean, the batteries are good, let’s take a deeper look into what the issue may be.

Repair:

As I always do with any camera I purchase, I like to ensure the lens barrel, mirror and curtain are protected. In this case I will therefore 3D print a suitable body cap, and a hot shoe cover. If I then have to start any in depth cleaning at least I won’t have to worry about any excess debris intruding into this area.

New body cap and hotshoe cover

The next thing I really study with any new camera that I obtain is the instruction manual. If some of the sellers actually did the same then they’d quickly realise, that sometimes there are no issues with the unit, it can really just be down to the quirkiness of the camera and how its controls work. Each camera brand differs slightly, so if you have no experience with a specific brand, it can quickly come across as the camera is not working. In a lot of cameras I deal with this is not the case. Knowledge really is king here.

And I suspect that this very camera may just well be a case of the sellers lack of operational knowledge.

I really feel like a fraud here, there is a button on the rear of the camera directly behind the shutter button. Here there is also a small slide switch. This combination of slide switch and button allows you to rewind the film when finished. The button appeared depressed, and when pushed a number of times along with moving the switch side to side the button then popped up and the camera kicked in to life.

Rewind slide and button. This was stuck down

A little contact cleaner placed behind the slide and down the side of the button ensured a free and easy operation. When the rewind procedure was used at least six times it has worked perfectly without issue.

When the rear of the camera is opened, the exposure counter resets as it should. When it is closed again and the shutter button is depressed, three quick fire actuations occur forwarding the film to its first exposure. All is working well.

Self timer operational
All indications working

A Nikkor 28-100 lens on the front confirms all indications are working in the viewfinder, and auto focus appears to be just fine. All aspects of operation on the camera have been tested and everything is doing exactly what it should be doing. This camera was never broken. Its operation was just mis-understood.

Result:

£4:00GBP is a very good price to pay for a fully operational camera, even though it was purchased as a faulty item. Every camera i purchase, I always download a .pdf instruction manual file to store on my server. Nine times out of ten a brief read of just the setup information can sort out a myriad of issues, and if the seller had done the same they would have been able to up their sales prices accordingly. I’m not complaining though as I’m able to bag a bargain on many occasions.

Here’s how this little unloved piece of camera looks after I have sorted it out, cleaned it and paired it up with a suitable lens:

Looking fine and in full working order

To think if this camera had not been purchased it would have just been chucked in the waste. Instruction manuals are supplied for a reason, and it’s always wise to refer to one when things start to go wrong, nine times out of ten there isn’t a problem, just a minor misunderstanding.

Take it from me, instruction manuals are good. I have hundreds stored electronically referencing cameras I have had, through my hands over the past years.

Thanks for passing by, and as always it is very much appreciated.

Canon AE1 – Program

I have my final piece of the jigsaw. My sixth, and final camera of the classic Canon “A” series collection

I purchased this camera as part of a job lot of 5 cameras that were faulty, read about that purchase here: More camera odds & sods

Canon AE1 – Program
Broken battery door

I’ve been working towards purchasing the entire range of Canon “A” series cameras, and this is the final piece of the jigsaw for me. I haven’t paid premium prices, I have purchased each and every one of them as damaged items and have had to effect the repairs on them to get them working. It’s a wonderful collection of old cameras, all showing their individual battle scars but each performing without fault in taking photographs. What they were designed to do, growing old gracefully and with a now extended life span.

My complete collection

It works out that this camera has only cost me £8:00GBP, and that is a superb price to pay for one of these cameras, even if it was only for parts it would have been a bargain, however these all have the ability to be revitalised and to be given another crack at life. I have done a very brief assessment and nothing appears to be operating as it should be. Electronically this is potentially a very unstable camera, I just need to run a final test on the electrical system. It has two parts that need replacing. There is a small power winder cover that is missing, it’s not important but I will replace it purely for aesthetic reasons. Secondly the battery cover is broken, I do have a 3D file downloaded so I will see how that prints out.

This camera is currently unloved, very dirty and will require quite a bit of work just to bring it up to usable standards. I don’t wish for it to be pristine and at display standards, I want it to be clean and capable of carrying out what it was originally purposed to do, it will be used and thoroughly loved.

Here’s a little bit about the AE1-Program:

The Canon AE-1 Program is a 35 mm single-lens reflex camera that uses Canon’s FD mount lenses manufactured by Canon Camera (today Canon Incorporated) in Japan and introduced in April 1981 as the successor to the Canon AE-1, five years after that camera’s introduction.  The major difference was the addition of the Program AE mode first seen in the A-1. This mode sets both the shutter speed and aperture automatically—albeit with a slight bias towards the shutter speed setting. The user focuses the camera and then presses the shutter button. For those desiring more control, the AE-1’s shutter priority auto-exposure and full manual modes are still available.

Wikipedia

Repair

The first thing to do is to get the relevant battery in place and to see what does or doesn’t light up or function. These cameras take a standard 6v 4LR44 battery, and I have some more of these arriving later today, these cameras are reliant on that power source to pretty much do everything, so we have to have one in place to carry out an accurate assessment. Once i can see how the electrical system is working I can then make a decision on how to progress.

The battery has arrived and when it is installed, nothing happens. Electrically the camera is dead and requires attention, and that’s not good. The auto, lock, self timer switch under the winder is not moving, and hence the winder won’t wind, and the shutter won’t fire. It’s a very poorly camera. I go to remove the 6v battery and it is extremely hot, I’d suspect very close to exploding, this is not good at all. I’ve put the battery to one side, it’s now obvious that we have a short circuit somewhere causing the battery to overheat.

I have printed off a replacement door and catch. It’s not to the original standard but should do the job, until a quality one becomes available. To replace this door the top of the camera has to be removed anyway, so whilst I’m in there I will try to see if I can find the cause of the short circuit.

Top off. Damaged battery door removed

The pin that supports the door has to be pulled up through the mass of electronics to release the old door and the little spring that opens the door.

New replacement door installed after being printed

The printed door has cost me approximately 0.22p to print, and considering that Canon no longer produce the door, the options are limited to auction sites that charge horrendous amounts up to £30:00GBP, or the alternative is a 3D printed option of about £15:00GBP. Seeing this camera has cost me £8:00GBP, a layout of 0.22p will do for me just to get this camera up and running. I can always “tart” it up in the end if I choose to. To be honest, if it does a job, if the camera does what it should, then should I really worry about it? Probably not.

Just for the sake of it I have also 3D printed a speed grip that used to be facilitated on the “A” series cameras. These give a little more security to the battery chamber door, stop the door opening if the catch should fail, and give extra grip to the camera body. And it kind of looks nice so I have printed one out to use. I just need a black M3/8 screw to attach it.

New speed grip printed

I’ve also printed off a eye cap for the camera. Just because I can to be honest, it just finishes it off in my opinion.

New eye cap

I stated that the switch that puts the camera into auto mode, switches it off and operates the self timer was seized. When the top is removed and all the relevant parts are removed the area in question can then be observed. And there was a problem.

Under the film winder is a small Perspex frame with a spring loaded catch. This operates the three settings “A” – auto, “L” – lock or “S” – self timer. The switch must have been forced in the past, as the metal catch had sprung under the Perspex plate and was firmly wedged between the copper contacts underneath causing the short.

The copper traces under the Perspex

The metal catch had to be coerced back into position, lifted slightly to sit comfortably back in the position it had previously occupied. A quick test confirmed that the switch was now behaving how it should, and clicking firmly throughout its range.

The selector switch under the film winder in the correct position

The original battery that overheated was now showing as severely depleted due to the earlier problem, this has had to be disposed of, and so into the battery recycling receptacle it goes.

With the camera now reassembled I can try a new battery, and the result is the polar opposite of what occurred earlier. Straight away the shutter fired, when I put the switch into auto mode, the shutter could be fired again in fact it could be fired repeatedly. The light meter inside the viewfinder is working and showing lights. When in auto mode, and the battery check button is pressed you hear an intermittent sounder showing the electrical circuit is now operational, the more frequent the sound the healthier the battery is. When in self timer mode it didn’t work, it should beep and after ten seconds should fire. Hopefully it’s just dirty contacts, but none the less it will need looking at next time I take the top off. And all the while the new battery has remained cool with no temperature change. We have found the short circuit and the basic camera operation has been restored.

One thing I noticed with the shutter working is that there is quite a “Shutter cough” often heard on these older unloved canon cameras. Not a real issue, this will mean further dismantling of the camera to get to the shutter area for a little clean and some light lubrication.

So, let’s deal with that little “Cough”….open wide now!

I’m going to approach this issue by going in through the base of the camera, here I can deal with two issues at the same time. I suspect someone has been in here before me as there is only one screw securing the base when there should in fact be three. I will get these replaced now as I do have a fairly good supply of spares in stock.

This is the magnet coil, it’s known to get dirty after time causing issues such as a continuous wind with no mirror movement.

Magnet coil

This camera doesn’t have that issue, but because I’m in here it’s a simple case of removing two screws, the casing and then just clean the magnet and coil contacts with some IPA.

Case removed
Contacts cleaned

That done, the plastic case is put back on, and the two screws put back into place. Simple job done, it’s future proofing the camera against this issue ever occurring. A blow through with an air canister and a little light lubrication of moving parts in the area and then we can move onto the next issue I want to address.

I’m going to attempt a shortcut with my oiler pen to see if I can deal with the camera cough without going too deep inside the camera. With the long needle of the oiler I may be able to reach deep enough into the internal workings of the camera to oil up the offending cogs and levers. If it doesn’t work then I will have no option but to open up the camera and get inside. It’s worth seeing if I can get the shortcut to work, it’s not a permanent fix but might buy me a year or so of cough free operation.

I’ve left the camera overnight for the very limited amount of clock oil I used to get into all the nooks and crannies, and I’ve checked when I got back home from work, and I’m pleased to say it’s has worked perfectly. Have a look at this little video below that shows how it sounded with the cough, and then after treatment.

Before and after cough

Now with the cough issue sorted it’s time to go back to see if we can address the self timer issue. With the base now secure with all its screws (I’ve replaced the two missing ones) it’s time to get the top off again and have another look around.

Inside the camera just below the wind on lever is the mechanism that operates the selector lever. There are four tiny copper contacts that connect with the copper circuit just below. One of these four contacts had been crushed to a level where contact was no longer made with the circuit board below.

Copper based circuit board and copper contacts under this acrylic selector

Using a small set of tweezers, I was able to bend the delicate copper contact back into shape allowing it to once again make a connection with the contacts on the circuit board. I’ve also cleaned all points of contact with IPA to ensure all surfaces were clean. A quick test at this point proved the circuit, I was now able to reassemble the camera yet again. Prior to this though I gave a good blow through the circuitry with some compressed air before sealing the top of the camera back in place.

The self timer is now fully operational.

Self timer now working

The major issues have now been addressed. Let’s get on with the bread and butter items.

The light seals including the mirror bumper were in a very poor state and had to be removed. This took a lot of patience as the felt had broken down into dust and clumpy particles. I used IPA to soften the old adhesive and probably used about a dozen cotton buds to remove all the debris. The thing with cleaning these areas is when you think it’s clean, clean it again, and once more for luck. In theory cleanliness here is your friend as it helps you through the next stages immensely.

New felt and light seals

Once all the old felt and seals are removed, and dried, I can cut the new seals to size and get them installed. This has been completed and the new seals have gone into place without issue. Personally for me, this is the most boring but essential task in restoring old cameras. It’s one of those tasks you put off until the end as it is so fiddly and has to be just right.

With the light seals now complete, the last task now is to give the camera a thorough clean.

Result

A buff of the leatherette, and a good polish of the metal work and she is looking resplendent. A new quick grip, hot shoe cover and battery door and the look is complete. My £8:00GBP cast off, dirty, damaged and broken camera is now looking a lot healthier and is now in a good working order.

Looking good working well

I’m awaiting a roll of XP2 black and white film to arrive, and that will be the test film for this camera. I’m probably going to feature it in my weekly 7 days and 7 photos series at some point. I will post a link to that post when it occurs.

It’s been a long time bringing this camera back to life but I’m so pleased at how it has gone. These “A” series cameras will always be my favourite because of the place they have in my photographic past. I have a few that I have been working on, but this was the one that actually completed my collection. I now need to find a suitable way to display them all, rather than leave them packed away in storage.

Thank you for passing by, as always it is very much appreciated.

Stay safe.

Atari Lynx 2 handheld games console

Meet Mikey, and Suzy! Well it’s actually an Atari Lynx II from 1991. Mikey and Suzy were the names given to components within the console. Anyway it doesn’t work, so let’s try to breathe some life into it.

What the listing stated:

The product is an Atari Lynx 2 handheld console, originating from Japan. It is a spare or repair item, as it is not in working condition. The package does not include a charger. This vintage gaming device, released by Atari, offers portability and gaming capabilities. Ideal for collectors or enthusiasts looking to fix or restore a piece of gaming history.

EBay

The item I have purchased

It’s a faulty item, one of many I have been chasing over the last few months, however their resale prices even when faulty, can command some quite hefty prices. I’ve managed to purchase this one at £65:00GBP and that is a price I am content with, as some of the recent ones I have seen went for a higher price even with parts missing or body damage. Cosmetically this one appears to be in a good condition with everything intact. However, the actual fault has not been declared, just that it is faulty and not working. I will have to do a little fault finding to pinpoint the issue, though I suspect initially that a full capacitor change will be the order of the day.

I want this to be part of my personal collection, alongside the Lynx 1 that I also have.

Here’s a little bit of information regarding this unit:

The Atari Lynx II, released in 1991, is the sleeker, redesigned version of Atari’s pioneering 16-bit handheld color console. It addressed original flaws by offering improved battery life, a backlit LCD, and stereo sound, while retaining impressive hardware features like hardware sprite scaling and a unique “lefty” flip mode. 

Key Features and Design

The Lynx II packed advanced technology for its time, including several highly unique design choices:

The Display: It features a vibrant 3.5-inch color LCD. Unlike the original, the Lynx II included an option to toggle the backlight off to save battery. 

Left-Handed Mode: Because of its symmetrical control layout, the entire system can be flipped 180 degrees. The internal software features a “flip” button to invert the screen, converting it into a truly left-handed console. 

Vertical Gameplay: Some games, such as Qix, are designed to be played holding the system vertically like a book, taking advantage of its unique design architecture. 

Comlink Play: It supports up to eight players for local multiplayer over “ComLynx” cables. 

Hardware & Power Specs

Processor: 16-bit custom CMOS chip (nicknamed “Mikey”) running at 16 MHz.

Graphics: Custom graphics chip (nicknamed “Suzy”) featuring hardware sprite scaling, zooming, and distortion.

Battery Life: Runs on 6 AA batteries, which deliver about 4-5 hours of gameplay with the backlight on. Due to this high power consumption, an AC adapter was a common necessity. 

Courtesy t’internet

So, without any further suppositions as to what’s wrong with it, let’s just await its arrival to carry out a full assessment.

Assessment:

I believe that to do a proper test on these units you have to have a game cartridge installed, this is my first issue, I don’t have any cartridges so I have had to purchase the cheapest one I could find for testing purposes. I’ve managed to pick one up for £11:00GBP and to be honest that isn’t too bad. It may well be the worst game they ever produced, who knows? But it will be fine for testing purposes.

Checkered flag for the Atari Lynx

Well, we still wait. Two weeks down the line and only the game cartridge has arrived. Not much I can say about that apart from it looks ok.

The game cartridge.

If the game doesn’t function there is not a great deal I can do here. As you can see it’s just a wafer thin plastic plug with no user access available. About the only thing you can do is clean the contacts.

We just need the console to arrive now……

And it’s arrived and to be quite honest it is in a good condition cosmetically, and for an item that’s now 35 years old it has been well looked after. No need to put any batteries in as there are already a fresh set in there, I have checked their voltages and they are fine. 6 x AA batteries turning out around 9 volts, the units requirement.

As I have previously stated, without a game cartridge installed the unit does not turn on. When a game is installed and the unit is turned on, I get an audible short “click” and the back light of the screen comes on, I get nothing else and am unable to get any sound or adjustment on either the volume or screen contrast dials.

Screen off
Screen on
Bottom
Top
Rear

It’s looking very much like either a screen issue, or an issue related to the failed capacitors on the main board. There is one particular capacitor “C41” that controls the main power board that is notorious for failing. I will check this initially to see how it is fairing, if it is ok I will make my way through the board checking other components as well as looking for other points of known failure such as weak solder joints.

Repair:

Firstly, let’s get into the unit, and this requires the removal of five screws in total.

After removal of the rear of the consol
Board removed
Ribbon cables detached
The power side of the board

The back should then lift off. Carefully remove the two screen ribbon cables, the power jack and the speaker jack and the whole of the main should just lift out.

A word of warning here. The power side of the board has a number of points that if touched will give you a nasty jolt of many hundreds of volts, a very quick and potent shock and you will certainly know what’s happened. Be very careful handling anything in this area, especially around the capacitors, and always make sure you bleed the power once the power source has been removed. If you are working live in this area, please be very careful. It’s amazing that just 9 volts of injected power can create such high voltages. You have been warned!

I’m going to order a full replacement capacitor kit, for an item of this age it’s probably a wise investment if you want the unit to be around for a good few years yet, even if the caps are not at issue they would probably need doing in the end anyway. The capacitor kit in its entirety (number of caps*) costs £9:80GBP and that’s a really reasonable price to pay to ensure the units usage can continue for many years to come.

The capacitor kit has arrived and there are 24 included. I think there are only 20 to replace (I could be wrong) so I may have a few left over.

The capacitor kit

I’ve started by removing the most prominent known capacitor that falls and that is C41. It’s a 10v 470uF value and has a tolerance of +\- 20%. So in Theory this capacitor has a value that can fluctuate between 376 and 564 micro farad, and the one on this board is registering 514uF. In theory it is still working, however it’s gradually creeping closer to to the limits of its tolerance.

Old C41 capacitor removed
New C41 capacitor installed

And to be honest, that was pretty much the same result with the other 19 I replaced. All were within their tolerance but at the higher end. The problem here is not capacitor related, however it’s always a wise move to replace them, before they finally go bad and cause other issues.

As replaced I marked them with a black marker
Black marker everywhere, job complete
The old removed capacitors

The recap has been successful, however I know it’s not going to make a difference, and putting it back on power confirms this. There is no difference to what I was experiencing when I first tested the unit.

No change

Annoying though this is, it is a job that needed doing and I’m now going to have to focus my attention elsewhere. I’ve checked the polarity of all the capacitors and I’m confident they are installed correctly and in the right positions. There are a few tests and checks to yet carry out, I’ll just have to do a bit of investigating to take this repair further.

These boards and their components such as the main chips and ram were developed to work with a power of 5 volts. However the problem here is that the supply via batteries or via an external power supply is 9 volts. Here lies the issue. On these units the power suppression part of the circuit, those components that filter and lower the voltage from 9v to 5v were known to fail, and when they did they failed quite spectacularly. With no protection built in to stop a surge of power, if some did fail, the full 9v would be supplied to most sensitive components rendering them beyond useless, and non repairable unless you have another donor board. Worst case scenario here is that the main CPUs of which there are two, could both be dead. In which case I may have purchased an expensive paperweight! But hey, let’s not go there just yet as there are a number of things we can do to check.

Next thing I have been doing is testing voltages around the board, and they are a little erratic to say the least. It is pointing towards the power board having its usual known issues. I’ve bypassed the power circuit to run a pure 5v through capacitor C14, same outcome here, this disappointed me as I was hopeful the game would kick in, it’s looking more like one of the chips have blown, the further I investigate.

I have done a bit more testing around the power components and I have definitely found an issue with a diode D13, it’s letting power through in both directions and this is not right. I suspect there are more affected components in this area so I’m just going to go ahead and purchase a complete pack of replacement components for those known and prone to fail, on the power circuit. This will cost me £6:79GBP, another cost to add to this project.

The failed diode D13
Same reading in either direction

I’m not hopeful though. Current testing results are all pointing to something more terminal. We will persevere for the short term though.

The parts required for the power board refresh have arrived.

6 of the tiniest replacement parts

And they are minute in size. Installing these components is going to require a lot of patience and concentration.

The company that sell this power board refresh kit in the UK is ZedLabz.com and this is what their accompanying paperwork states:

Within this kit you will find a replacement Mosfet, two transistors, a resistor and two zenner diodes of different mounting types.

Part locations:

Q11 – Mosfet

Q4 & Q13 – Transistors

ZD1 – Zenner diode (two mounting types included)

R56 – Resistor 30ohm

This parts kit can be used on an Atari Lynx 1 or 2 handheld. One surface mount SMD and one axial through hole zenner diode are included, making it suited to both Atari Lynx 1 & 2, you can choose which type of diode you want to fit.

The kit also includes a resistor which can help with some models to push up the voltage enough to get it stable.

The parts we supply in this kit are from Major distrbutors only ensuring they are genuine.

Console dissasembly and internal soldering required.

ZedLabz.com

No kidding there! It should really say some soldering of components slightly smaller than a grain of rice is required. Let’s stop the whining and just get on with it.

I have replaced all of the five components that needed to be replaced, I’m really quite pleased with the job I have done considering just how tiny these components are, my soldering skills appear to have improved somewhat as a year or so ago I wouldn’t have even attempted such a job. That’s the positive.

But now the negative.

It’s Dead, very dead.

There is still no improvement despite pretty much an entire rebuild of the circuit. I have checked all voltages and they are in the right place showing the correct values. It’s been recapped, the power board has been rebuilt, all solder joints have been checked and ribbon cable connections have all been reflowed.

Result:

My conclusion that the previous owner was well aware of the issues, they probably contributed to the problem and the unit has been sold on as “spares and repair only”. I have failed to pay attention to the old Latin saying “Caveat Emptor” or buyer beware.

The situation is this. A new LCD screen can be purchased to drag the unit into the 21st century, but there is no point when we have no sound and vision being produced. The problem here is that the 9v power supply has already been able to get to the delicate parts of the circuitry where only 5v should be in attendance. I am 99.9% certain that the ram chips as well as the two logic chips “Mikey & Suzy” have long departed. And there lies the problem. The two logic chips are as rare as hens teeth and are pretty much only available when transplanted from a donor unit. The unit is basically dead, it’s just a paperweight.

I will put the unit into storage until a later date, when I have done a lot more research and who knows I may even find a suitable donor board to transplant those two logic chips.

For now the project is on hold. I don’t like writing of failures as many hours of work over many weeks has been dedicated to this project. You can’t win them all though, and some you just have to step away from a project to get a fresh aspect on it. Having this log of activity is fantastic for me though as it will now become the reference for where I go next.

It’s a learning curve, that’s for sure.

When I come back to the project I will obviously link to this post.

Thanks for passing by. It’s always very much appreciated.

Dewalt DW087 Self-Levelling Cross Line Laser

Just picked up a badly damaged Dewalt laser levelling unit. Old and damaged, can I bring it back to being useful again? I can only try.

What the listing stated:

think the batteries melted in the chamber. does not work at all.

EBay

Straight to the point, the words “severely knackered” I think, would probably be a more appropriate quote, however I must be patient and await its arrival.

The unit I have purchased

When working and from new, these little laser levelling units retailed for approximately £175:00GBP. However they are of the older red laser model and new units use a green laser, so the older red laser version is now out of production, but still well sought after on second hand markets where it can still command prices in the £50-60:00GBP range. I’ve paid the princely sum of £6:00GBP for this one, so I’m very happy with that. If I can get it working it will go into my own tool kit for use.

Here’s a little about this unit:

A new DeWalt DW087 (or the DW087K kit) generally retails for around £178 to £185. However, because this specific model is an older red-beam line laser, used or refurbished units are widely available across secondary markets, typically ranging from £50 to £80 depending on condition.

The DeWalt DW087 (often sold as the DW087K) is a self-leveling cross-line red laser. It projects bright horizontal and vertical lines with an accuracy of ±0.3 mm/m and features an indoor visibility range of up to 15 meters. Powered by 3 AA batteries, it includes a built-in magnetic pivot bracket for quick metal mounting.

So. Basically it used by tradesmen and women to set up a visual laser projection around an area. Just think about putting up kitchen cabinets or worktops, and you’ve probably witnessed one of these in action. The one I have purchased sounds as if it is in a pretty poor condition, the lack of pictures showing the battery area speaks volumes and is probably hiding a crime scene, however I’ll just have to wait and see.

Assessment:

It has arrived. It’s as expected, looks like it’s been around a few building sites and most definitely does not work. The good thing is that the description of the batteries melting in the chamber was not so, in all truth it appears they have corroded the contacts a little, and one point of contact required to complete the circuitry appears to be broken.

The unit as it has arrived

It’s dirty no doubt about that, but it can always be cleaned.

The missing contact

There is a missing contact as highlighted in red, in the picture above. This connects with the battery contacts in the battery lid. When a circuit is made the level will work. There is a small piece of metal strip at the base of this hole, the remnants of the contact that should be there. I have managed to get the unit working by temporarily putting a small spring in here to bridge the contact. This will have to be replaced or repaired though.

Repair:

The first thing to do is to get the unit disassembled, and that is surprisingly easier than I thought. Four screws later and the body can be pulled apart. Another two screws removes the battery flap. Easy.

Upper body
Lower body
Laser internals

There are a couple of rubber gaskets that fit in between the two parts to ensure an airtight seal and to stop the ingress of dirt. I have given the lenses a clean with a camera lens cloth, I have cleaned both inside and out of the window and given a good blow through with some compressed air. I have used a multimeter on the power led in diode mode just to check that it is operational, and it is. There is nothing else needing attention within the internals.

Turning my attention to the battery chamber and battery lid I give both a thorough clean, the negative terminals in the battery chamber are cleaned with an IPA solution to improve their appearance, the whole chamber is cleaned in the same manner and is looking good.

Before
After

There was a collection of what appeared to be iron filings where the battery lid joins the body, and this is because on the opposite of this point, there is one of two strong magnets that keep the lasers level. Holding the unit over a bin and lifting the magnet out ensured a nice little rainfall of iron filings into the bin and not all over my workspace. With the magnet now replaced I gave this same area a further good clean with IPA.

Before
After

The battery lid has been left to bathe in a dish of white vinegar to help remove the remainder of the tarnishing to the battery contacts attached to it. It’s worked ok, a final tidy with a grinding pen has brought this up well, looking a lot better than it previously looked.

I now need to look at that broken contact.

Covered with hot glue
Part of the broken contact

The wiring for the contact has been hot glued into place on the reverse of the battery chamber. I used some IPA to loosen the old glue and that allows me to remove the remainder of the broken contact. The top part missing from the inside of the chamber has long gone. I will have to fabricate a replacement myself. The wiring you see above was also hot glued to a plug on the main circuit board. Again, an application of IPA softened the glue and I was able to remove the plug from the circuit board to be able to work freely on the battery chamber. When the work is complete I will re glue both these items back into place prior to reassembly.

I’ve formed a small contact out of a piece of pliable metal to use in the device.

The piece I’ve made
In place in the battery chamber
Fits well
Wire soldered on

It fits nicely and is cut in such a way that it won’t push through into the chamber when a slight pressure is applied. I’ve hot glued both surfaces that I had removed glue from in the first place to gain access. Now the unit is being reassembled they’ve been glued just as they were previously.

Hot glue re-application

Now the unit is back in one piece it’s now time to reattach the battery chamber lid, and in time honoured tradition, I’ve daubed my nick name on the lid, as this will now go into my toolbox in my garage.

Lid attached
Name added

Now all that is left to do is switch it on.

And it works just fine….

Superb, works perfectly

Let’s now just give it a practical clean, it’s a working item for rugged situations so it isn’t going to look “Shop” new. But it will be an awful lot cleaner.

Result:

The finished, working article

A tool that originally retailed for £175:00GBP and available on the auction sites, in good working order of between £60-£90:00GBP was purchased, non operational for the grand total of £6:00GBP. If that isn’t a bargain then I don’t know what is.

For little more than a couple of hours work I now have a valuable practical item to add to my toolbox because someone else just couldn’t be bothered to spend the time on it to get it working. Lucky me.

Definitely another item saved from landfill, with a new lease of life that should go on for many more years yet.

I’m very happy with it, this was a pleasure to work on.

Many thanks for passing by, as always it is very much appreciated.

MONOPOLY ELECTRONIC HANDHELD GAME

A dead Monopoly electronic handheld game from 1999. Can we resurrect rich Uncle Moneybags?

What the listing stated:

The Vintage Monopoly Electronic Handheld Game from Hasbro (1999) is a classic electronic game that allows players to enjoy the iconic Monopoly game on the go. With its handheld design, this game is suitable for players aged 4 years and above, making it a fun and engaging activity for children and adults alike. Although untested, this nostalgic piece of gaming history is sure to bring hours of entertainment to anyone who enjoys the challenge of a good game of Monopoly.

EBay.

The item I have purchased

The good old EBay get out of jail free card (How appropriate 😂) of untested. This item takes three AA type batteries, just what does it take to pop three battery in and turn on the unit. Why am I so sceptical about this item? I just have a feeling that it’s going to be riddled with issues and I bet one of them involves battery acid.

But, miracles do some times occur, so let’s just await its arrival so I can carry out a full assessment, in the meantime here is a little bit about this game.

The 1999 Hasbro Monopoly Handheld game is a classic electronic version of the board game designed for solo or multi-player action. It features computer-controlled opponents, a virtual LCD board, and an interactive narrator (Rich Uncle Pennybags) who guides you through buying, trading, and auctioning properties.

Gameplay Features

The 1999 handheld faithfully recreated the full experience of the classic board game in a portable format. Key highlights include: 

  • Computer Opponents: Play against up to 3 to 5 distinct, computer-controlled characters (like Diamond Jim or Greedy Granny), all of which operate at different skill levels.
  • Full Board Mechanics: You can buy, sell, mortgage, trade, and even auction off properties.
  • Audio & Visuals: Features a custom LCD display, physical buttons for menu inputs, and fun real-sound effects.
  • Power Requirements: The unit typically requires 3 AA batteries to operate. 

T’internet

Assessment:

Well, my suspicions in this case are correct. It has arrived and for a unit that is now 27 years old I must admit that cosmetically it is in a good looking condition, with all labels intact, minimal marking on the screen, and all buttons appear to be clicking. All body screws are present and do not appear to have been tampered with at anytime.

Clean, tidy
All labels present

But hold on, what’s that I can see through the speaker grill on the front?

Battery contaminant viewed through the speaker grill.

I open the battery company and as I previously thought there are signs of battery contamination.

Battery contamination

Bugger. Ok I’ll put three batteries in but I’m pretty sure I know the outcome. Yep, it doesn’t power on. The unit is dead.

An untested unit. It’s taken me 30 seconds to test and confirm the issue. Wouldn’t have hurt to be honest and to have done the same would it?

I paid £7:90GBP for this unit, it was probably the least expensive of all those available at the time, I guess I can’t complain really, I just detest people’s deliberate dishonesty. Ok, whinge over let’s open up the unit to delve a little deeper.

I open the case and can breath a slight sigh of relief. Yes there are obvious signs of battery contamination, but not as bad as previously thought. As I had seen signs of contamination in the external speaker grill, I’d thought the insides were rotten. In fact the contamination in the speaker grill was only a few grains of contamination that had broken away from the battery compartment.

A rogue piece of contamination
Wires rotted near the connector
Jumper cable broken
How it looked upon opening

The wires near to the worst points of contamination in the battery compartment were pretty much rotted and covered in old battery acid. One jumper that would complete the continuity of the battery/power flow had rotted off and one of the very thin speaker cables was also broken.

Repair:

I’ve given the mainboard a good clean with IPA and set about removing all the battery connectors from the battery box.

Old connections out
A thorough clean of the area
New connections in

I’ve reattached the jumper cable with some fresh wire, I’ve trimmed the rotted wires down to some good unaffected wire and reattached these to the new battery connectors. The speaker wires are freshly soldered back into place.

New jumper
Hello rich uncle moneybags

With everything now connected up I put three batteries in to place and can instantly hear the computers electronic voice welcoming me to Monopoly, Rich Uncle Moneybags lives again.

Time to reassemble the unit.

So the issue was here was the result of battery contamination. Four battery contacts, and one wire, were all that were additionally required along with a lot of cleaning and some re soldering to secure some weak connections. It’s now a complete working unit.

Result:

As usual, this would have been a prime target for the tip as it’s just one of those disposable units we have created as the wonderful guardians of this little planet we reside upon. It’s taken probably about 30 minutes of time to repair (and about the same to clean internally) to bring this unit back to life. A good polish externally and it’s now ready to be put back into use.

All cleaned and looking good

And my chief tester for these type of items is my wife who absolutely adores the game of Monopoly.

The only real issue with these units is that they never came with an on/off switch. You had to put the batteries in and then remove them when you were finished, this is very strange. However when you read up on line you can see that many people have made modifications to put volume controls (even though there is a three press button version built in) and on/off switches on the unit. I will probably put a switch in myself when I come across a suitable one to use.

In the meantime we now have a working unit, the wife gives it her nod of approval and that’s good for me.

A simple repair, very little outlay and only a little time was all that was required to save another item from landfill. Wouldn’t it be good if we could all take the time to repair rather than dispose.

Thanks for passing by, as always it’s always very much appreciated.

Sega Mega Drive AT Games Portable Arcade Gamer

From 2008 this is an AT Games, Sega Megadrive portable games unit. It’s an emulator console that has seen better days. It needs a lot of attention. Let’s see what we can do.

What the listing stated:

I can’t get the device to power on. This is possibly just due to corrosion (and one snapped spring) in the battery compartment. Someone more adept at fixing things may be able to bring it back to life but unfortunately I can’t so listing it as spare/repairs/faulty.

EBay

I sure as heck wasn’t going to pay the old price advertised when the previous owner obtained this from Cash converters.

Front fascia
Rear fascia
I think there may be a problem here

Let’s just say I paid considerably less than the price tag on the rear of the unit.

These handhelds were sold as emulation devices usually preloaded with games, between 20-80 games were the norm, I believe this is a 30 game option, if the information that is left of the previous price tag is to be believed. They were originally sold within the UK by the national retailer – Argos, and it originally retailed at a price of £29:99GBP.

A little about these units:

The AtGames Arcade Gamer Portable is a licensed, handheld “console-on-a-chip” manufactured around 2008. Despite the common inclusion of “Mega Drive” in some regional retail listings, it explicitly emulates Sega Master System (8-bit) and Sega Game Gear games rather than 16-bit Mega Drive/Genesis titles. 

Game Library: Features 30 pre-loaded games. Notable titles include Sonic Triple Trouble, Sonic Chaos, Alex Kidd in Miracle World, Golden Axe, Ristar, and Tails Adventures. 

Hardware Limitations: It relies entirely on emulation software and lacks a traditional cartridge slot. The d-pad and face buttons feature a modern 6-button layout, despite the underlying 8-bit games only requiring two active buttons. 

Audio & Video: Uses a built-in mono speaker and a bright 2.4″ color LCD screen. It can plug into standard TVs via an AV output port, but it does not support modern HDMI connections directly.

Google

So here we have an unhealthy unit from 2008 requiring quite a bit of work, if it can even be repaired at all. It may just be too badly damaged to have a successful outcome.

Why am I wasting time on what was a relatively inexpensive item in the first place? And there lies the crux of the issue, in our throw away society this is the attitude we’ve all come to expect and to live by. It’s not a good attitude, there are probably millions if not billions of similar items world wide that have suffered the same fate, “it’s knackered, just chuck it and we’ll get another”. It’s a bad attitude that we need to step aside from. If I can at least reverse the attitude of one person and get them to explore the possibility of a fix to preserve an item and to save it going to waste, then I’ve achieved my goal. That’s why I’m wasting time on it.

Let’s await its arrival though, so I can carry out a full assessment.

Assessment:

It’s arrived. It’s looking a tad tatty as expected, and those battery terminals are totally corroded. I’m not going to put any power into it at this point as I know there will be no response. I just hope the corrosion doesn’t go much deeper. This is all rust, not battery acid.

Looking well used
Old stickers
Missing screw
Top controls
Bottom ear piece socket
Look at that rus
Everything here is rotted

We’ve got to get the case separated so that we can review the surprises inside that I suspect are waiting for me.

Repair:

With the cases separated the extent of the damage can be seen. The rust has also completely damaged the two terminals on the main board.

The back of the main board
Rusted positive terminal
Both terminals destroyed

My main concern here is that directly below the terminals is the screen. I’m hoping the source of the problem hasn’t gone any further.

And luckily the terminals are where the rust issue ends.

Screen area and front of board
Rear, damaged area

Ok, first thing I do is remove the rusted battery terminals from the battery compartment and then give the internal shell a thorough clean. I then install fresh terminals and add a couple of jumper wires as I don’t have and double type battery contacts. This is more than sufficient.

Corroded contacts
Shell cleaned
New contacts
New contacts
Jumpers added each end as I have no double terminals

Next I need to get the two terminals off of the board, I use a soldering iron for this, and as I’m going to produce a little heat in the area I mask the area between the battery contacts and the screen with a little Kapton tape to give some protection, I could have removed the screen completely at this point, but as I was using the iron and not hot air I didn’t class it as necessary.

Kapton tape under terminals

However, as I removed the two terminals, it became obvious that I would have to remove the screen as the old terminals took the connector pads with them and damaged some of the traces. I was going to have to carry out a more complex repair.

The old contacts with pads attached
New negative contact
New positive contact

The contacts had to be fastened from the rear of the board, so for this reason it was good that the screen was removed. The screen is quite delicate and is secured to the board with a ribbon cable that had to be detached, and double sided pads that had to be manipulated to release the screen from the board.

I did some testing with the multimeter and there was a good contact on the earth side. However the positive side was dead, no response. Closer examination of the board under the microscope showed that the trace between the positive terminal and a nearby Via point, shows that the trace had also been removed severing continuity. Using a grinding pen on the appropriate Via, allowed me to expose some copper, I was then able to use some flux and apply the tiniest dab of solder. The next stage was to utilise some trace repair wire, only 0.10mm thick. This is like trying to solder a piece of hair, it really is that thin. I was able to connect the wire from the base of the positive terminal to the via and testing proved that the continuity had been restored.

That tiny 0.10mm trace repair

I tidied this area up by adding a touch of UV curable solder mask, to protect that very thin wire from corrosion or being caught while re assembling. It cures in just over a minute under a small UV light and becomes quite solid. It’s good for this purpose.

So now that all continuity on both the negative and positive sides has been restored, I just connect the battery chamber for a quick test before reassembling it all.

And it works.

It springs into life

We have sound and we have vision. All that is needed now is to fully assemble the case to see if all the buttons and connectors are working as well.

Result:

And they are. A quick test shows that all buttons and connectors are in a perfectly good working order, a quick polish and this unit is looking good.

Front
Rear
Top
Bottom
All games appear and play fine, sound is excellent.

Really pleased with this repair, it was in a very sorry state of repair. However a little persistence and time and I have brought this little unit back to life.

I can understand the seller wanting to dispose of it and I suspect if it hadn’t of sold it would be on its way to landfill. I’ve prevented that and it’s a small win for me as this game will now go on to be used for a few more years to come.

A good result, a good repair and a happy me. Who could ask for more.

Many thanks for passing by. It’s always very much appreciated.

Gameboy Advance

Another one of Nintendos mass produced hand held gaming systems has arrived, with audio issues. It’s a Gameboy Advance, with no sound,so let’s try to fix it.

Here’s what the listing stated:

Gameboy advance console, complete with battery cover, all buttons works and powers on but no sound, has marks on screen and a few marks on shell and scuffs/indentations.

Photos of exact item you will recieve, FAULTY Uk buyers only. Has cover missing that the power light shines through on

EBay

The unit I have purchased

I’ve purchased this as another addition to my collection of handheld retro gaming consoles. As usual it dosen’t work, and that sometimes keeps the cost down a little. This one has cost me £24:00GBP and I’m happy that that is a fair price for one of these units. Here’s a little about the GBA:

The Game Boy Advance (GBA) is a 32-bit handheld game console, manufactured by Nintendo, which was released in Japan on March 21, 2001, and to international markets that June. It was later released in mainland China in 2004, under the name iQue Game Boy Advance. Compared to the Game Boy Color it succeeded, the console offered a significantly more powerful ARM7 processor and improved graphics, while retaining backward compatibility with games initially developed for its predecessor.

The GBA is part of the sixth generation of video game consoles, competing against Nokia’s N-Gageand Bandai’s Japan-only WonderSwan. The original model was followed in 2003 by the Game Boy Advance SP, a redesigned model with a frontlitscreen and clamshell form factor. A newer revisionof the SP with a backlit screen was released in 2005. A miniaturized redesign, the Game Boy Micro, was released in September 2005.

By June 2010, the Game Boy Advance series including revisions, had sold 81.51 million units worldwide, massively outselling its competitors. Its successor, the Nintendo DS, launched in November 2004, was backward compatible with GBA games. GBA sales ended by 2010 after over nine years.

In 2008, the GBA was still Nintendo’s predominant handheld console in terms of market presence and global installed base. It was only in late October 2008 that Nintendo announced that the Nintendo DS had officially surpassed the GBA worldwide in sales. This milestone consolidated the definitive global leadership transition between generations,[13]although in specific markets, such as the United States, the GBA was only surpassed by the Nintendo DS in sales in late 2009.

Wikipedia

Now just to reiterate. These units are now 25 years old, there were in excess of 81 Million of these units produced and they still command a good price today. Just consider how many of those units have been sent back into landfill, the figure is probably immense. But then again we produce many items en masse, and we have been just chucking stuff away for years. The figures must be mad.

Except for this one. It will be repaired, cherished and reused. And displayed for all to see.

This one has been advertised as having no sound. Just from viewing the sellers photos you can see there is an awful lot of staining around the speaker grill area, maybe some liquid has been spilled here and the speaker is damaged, or maybe the audio capacitor inside has blown. These are usually the two main culprits, but you never know it could be for some other totally different reason. Let’s not make assumptions, let’s see what turns up.

Assessment:

The unit has arrived all in one piece. The battery cover is in place, a little loose at the clip but I might be able to strengthen by heating and gently manipulating it.

It works but no sound
Battery cover
Clean contacts
Clean but a bit grubby
Connection ok, needs a clean
No sound, dirty
No light lens
Light scratches

Battery contacts show no sign of corrosion but are a little grubby. There are signs of good use but nothing really bad to be honest, all connectors and buttons appear to be doing what they should. The unit is in good need of a thorough clean, as it does look a little worn in that aspect. Screen has very minor scratches, nothing that will cause any issues. The little acrylic lens by the power light is missing and there is as stated, no sound even though we do have a picture and are able to play the games. In all aspects the unit is functioning, just with no audio.

This is a fair unit, it will clean up and if we can get the audio working we have a potentially very good unit.

It is dirty though, and a good clean will make an immense difference.

Repair:

The printer is on and warmed up so before we get repairing, let’s print a suitable display stand for this unit.

Display stand printing

Now let’s open up the unit and see what we have inside.

First there are seven tri wing screws securing the shell. Remove these and the rear of the unit just lifts off.

Seven screws
Rear removed. Board missing two screws

Next there should be three screws to remove the mainboard but there is only one. Someone has previously been in this unit and has left two screws out. Next we remove the ribbon cable that secures the screen to the mainboard.

Remove ribbon cable
Screen and front of the casing put to one side

We now have free access to both sides of the board and can put everything else to one side to start our fault finding process.

Rear of board
Front of board

First things first, let’s check the speaker. With the multimeter it’s showing 8 Ohms so I’m happy that the speaker is ok. A quick check for shorts and not one capacitor shows a short, I plug in a set of headphones and I can hear sound, but as soon as they are unplugged there is no sound again. My attention is now at the earphone socket.

Contamination
Headphones plugged in

On close examination other is a considerable amount of battery acid contamination in the earphone module. This is strange as there is none evident in the battery contact area. A close look around shows some spots of contamination, however these are easily cleaned with some IPA. I have a feeling this may have been a previous issue and the person in here prior to me, has cleaned up, but given up on the repair.

I remove the earphone module, and clean the surrounding area.

Front
Rear
Contaminated
See the blue contaminants

A simple check here is to see if there is any continuity between the two tabs that occupied positions 4 & 5 as marked on the mainboard. This check is carried out on the actual module. If you have continuity between these two pins, then in theory the circuit is good, and the speaker should be working. My results here were negative as there was no continuity on this module between those points.

The way the earphone works is thus. Plug the earphone jack in, it opens up the contacts and by passes the external speaker. Remove the earphone jack and the contacts close, opening up the main speaker. If there are contaminants on the contacts, this can prevent continuity and hence there is no sound on the main speaker.

You can double check that this is the issue by soldering a small wire between points 4 & 5 on the mainboard in theory by passing the earphone circuit leaving the speaker circuit open and accessible.

Short these two points
Shorted with a small wire

And my suspicions were correct, this small video below was the result of bypassing this part of the circuit.

We have sound in the speaker

Looking inside the earphone socket it was easy to see this piece had a solid lump of contamination exactly where I was expecting to see it. I have no spares of these and to obtain one off of the auction sites is an absolute ripoff. I can order one from our friends in China but I’m looking at a four week turnaround here, and I’m inpatient and not willing to wait that long. I’m going to try and repair it.

I’ve gathered everything up that needs cleaning, buttons, connectors, screws, pads and the suspect connector, and dropped the lot into a small dish of white vinegar. White vinegar is great for removing contaminants and you can actually watch it fizzing away and working. I left these items bathing for about 30 minutes before giving them all a good scrub clean. On the earphone jack I “borrowed” a small bottle cleaner from the wife, it fits right through one side and out the other allowing you to get a really good scrub inside.

White vinegar and a bottle scrubber

I also cleaned the outside thoroughly removing all signs of contamination, the tabs were gleaming when I finished. I then put everything I’d just cleaned in between two sheets of kitchen roll and put them in a cooling oven to dry off.

When dry I took the bottle cleaner again, inserted it back into the earphone jack, sprayed quite a bit of electrical contact cleaner back onto it and vigorously scrubbed again for the next few minutes. When dry, I took the multimeter and again checked for continuity across points 4 & 5 and a tone was heard. Continuity had been restored and the earphone contacts were now working. Plugging in a jack and then removing it confirmed that all was working as it should. It’s now time to put this jack back on the board.

Earphone port, back in place

Final touch is to put a tiny pice of clear silicon in place of the missing power light lens on the front of the case. Job done.

Time to reassemble this unit.

Result:

And here we are. The original unit has been thoroughly cleaned, it’s come up ok but is probably a good candidate for a case upgrade and a Capacitor change at some point. That’s just cosmetic though, what really matters is that this unit is now working perfectly, and it sounds just fine.

Fixed, cleaned, on its new stand with its fellow Gameboy counterparts

This unit actually came from a guy who restores these units, I guess he was just having an off day as to be honest, it wasn’t the most difficult issue to diagnose and repair. It honestly took longer to clean this unit than it did to repair it. I’m pleased that I’ve used all the original parts and just been able to do a proper restoration as such.

81 million of these units were produced, so this is just one in that 81 million, that has been saved again from landfill to be enjoyed for many more years to come.

Thanks for passing by. Always most appreciated.