CD – Foxes Den

Technics Mash SL-XP165 Portable Cd Player With XBS Bass

The listing states:

For parts or not working, Does not power on don’t know what is wrong with it,screen looks to have a leak

EBay

This is probably going to be one of if not the least problematic units I have received yet. Probably more along the lines of boring for those looking for a repair report, I fear I have brought you here under false pretences, that was not my intention and I apologise if that has been the case.

Another unit from 1996 (therefore now 28 years old) this one originally had rechargeable batteries which were a bonus item for such a unit at the time. Personally I’m using good old alkaline batteries for test purposes, I doubt I will be using rechargeables.

I down loaded the instruction pamphlet, grabbed a pair of earphones and then dropped in two AA batteries and a CD.

Nothing. Silence…..

I looked at the unit, the seller is right I thought….then I pushed the play button and took the switch off hold on the side and put the second switch into normal operation and almost blew my ears off.

Superb sound and it was quite obvious that the unit was working. All buttons are doing what they should do, the Xbass system is phenomenal and the volume dial is faultless and crackle free.

It just goes to show the seller in this case wasn’t fully aware regarding how the unit works. You have to turn it on and off to get it working, it’s not all automated like other similar units. See video below.

Stop start works good

The unit is a bit tatty and the indicator panel has had some leak by the looks of it (See photo at top of this post) but even though this looks a bit poor cosmetically it does still display most of the information, it’s just not showing the track number info. Yes I could probably try another screen on this unit but what is the point? It works fine and the unit will gain no significant value for doing such a fix. It’s just not a financially viable choice unless I somehow come across a no value donor unit and seeing the prices people think these units are worth, I can’t see that happening anytime soon. And the Sony donors I have just aren’t compatible.

So I’ll leave it as it is. As the saying goes, “if it ain’t broke, don’t try to fix it.” It isn’t faulty, the only fault was in the sellers knowledge of its workings.

Another one saved from landfill. And that’s a positive.

Blaupunkt BPHF-1R Dab CD radio assessment and repair

I have today received this item that I recently purchased on EBay, the original blog post can be found here: Blaupunkt Dab CD radio

Did you know that Blaupunkt translates as Blue point or Blue dot from German to English? This relates to the blue dot that quality control used to paint on their headphones that were being produced. In fact all their products now have that blue dot as part of the logo on all of their range.

I think I mentioned that this might be an easy repair, it’s probably not going to be anything too technical, but it will need a bit of deconstructing to get to where I need to be, due to the way this item is assembled.

The unit is cosmetically sound, radio in both FM and DAB works perfectly, Bluetooth and USB also work perfectly, in fact the whole unit works perfectly apart from two obvious issues.

The CD was reported as an issue however the actual fault wasn’t clear. It appears that when the unit is turned on the cd drawer opens no matter what mode the set is in. You can close the door and it opens again about 10 seconds later. It won’t stay shut and it dosen’t recognise any media.

CD drawer opens constantly

The second and what is an unlisted issue is that the unit has inherited a knocking from inside that I suspect has probably occurred in transit. On opening the unit one of the speakers has broken loose as a securing catch on the speaker grill has broken. I will need to fix this, it’s really nothing major.

Who’s knocking?

To get to the front of the unit you first have to go in through the back. When the back panel is removed you have to unsolder the aerial to be able to get into the box and unscrew the front unit, this then allows you to extricate everything through the front of the unit.

Reading about similar issues on line it appears there could be a number of issues here from loose belts, dry drivetrains, loose cogs, sensors needing cleaning, lasers needing cleaning right through to total replacement of the cd unit. I will wait and see what presents itself when I can spend some time on this in the next couple of days. It really is a nice little unit and it would be good to get it back working fully.

The mains circuit contains a big capacitor that needs bleeding before I get anywhere near it. This is done and work begins.

I’ve fixed the broken speaker securing clip by using some Araldite 2 part adhesive and a small clamp. I’ve left this for a few hours until it set hard. It’s now back in position and doing the job it was designed to do. Both speakers are now secure.

I found out why the Cd drawer kept opening. There was a previously installed and damaged disc sitting under the carriage. As soon as that was removed the Opening/Closing scenario is no more.

I reassembled the unit and it all appeared to go well until….no disc error 🤦‍♂️

Sort one issue and another arises

Damn, I checked the drives they’re ok, I’ve cleaned the lens and reassembled yet again. Same issue.

I’ve opened it up yet again and checked the output power of the Laser and that is at .03 ohms. Small adjustments on the diode show no improvement in either direction so it is looking as if the damage is within the laser itself. I don’t hold out much hope of getting the cd working as it’s not really a replaceable unit as it wasn’t designed that way. So unless I can find some way of getting around this issue I might just have to accept that the unit will just be used in Dab, FM, USB and Bluetooth modes.

It works. So I guess it’s a job done. Sort of.

Anyway who uses CDs these days?

I do 🙋‍♂️

Blaupunkt BPHF-1R Dab CD radio

Just brought this. Here’s the listing on EBay

Excellent sound quality on Blaupunkt DAB radio with built in speakers NOTE CD player mechanism is not working

(possibly an easy repair job)

Radio & remote OK.

RRP £99.00
EBay

I ended up paying the grand total £21:22 GBP for this item and that included postage. I may have got quite a good deal, however as usual I will have to await its arrival as you can’t always trust EBay listings. Hopefully the issue with the cd mechanism is a relatively easy fix 🤞

Looking forward to getting busy on this one, back to the end of the ever growing list of items to work on you go.

Check here to see how the repair went : Blaupunkt BPHF-1R Dab CD radio assessment and repair

Sony Discman D-121 Pt:2

Assessment and fault finding… will it work?

My recent purchase of a Sony Discman D-121 from EBay has arrived. Just as described it wasn’t really working so I decided to give it a once over to check condition.

Cosmetically it’s in very good condition, open the battery compartment and it’s a different story, definite signs of corrosion and at this point I’m thinking the worst. I put two batteries in to check, the display comes on and shows some strange indication of “HI VOLTS” even though all I have are the two AA batteries in. Strange.

I do manage to play one song but that’s it, any slight move and it skips and hops and shows a raft of other error messages that don’t Instil any confidence into me that this is going to have a good outcome. Then the CD drive motor breathes its last. That’s it….kaput.

So I open up the unit, and put the circuit board under the microscope. The area around the corroded battery terminal has progressed on to the board and a couple of the circuit board tracks have been totally destroyed. A few components look to have issues and have some spurious test results. A check for continuity with the multimeter confirms that one track is dead and another is intermittent at the very least.

I clean the offending section of the circuit board with IPA and this just confirms the issue, but at least it looks cleaner. If this had been the only issue I’d have happily soldered in a couple of thin wires to the undamaged track to ensure a reliable continuity.

A further look around the board, and there’s nothing blatantly obvious, but seeing this unit was produced in 1993 it’s now in its 31st year of use I also suspect the capacitors (of which there are many) may well be of that era of suspect capacitors I discussed on a previous post. Read here: Capacitor plague

The main drive motor is known to fail after time and a sure sign is if the CD jumps when moved off the horizontal, apparently this is due to bearings becoming misshapen due to use.

This unit therefore is beyond economical repair for me, and I’m not going to progress it any further. The good news is that I can use the unit for spares and as a number of these older units have interchangeable parts, I’m hopeful that as I have a few more units turning up later this week they may have a willing donor.

So the recycling goes on, and that’s always a good thing.

Happy day to you all.

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Assessment and fault finding… will it work?

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