Sharp OZ-7000 Wizard

The Sharp OZ-7000, Amongst one of the first electronic organisers and precursor the PDA. Needs repair. Or does it?

What the listing stated:

Not working. I have replaced the two batteries and cannot get it to work. I have not touched the memory battery. See picture for actual item. Case is a bit sticky unfortunately with age.

EBay

First of all, what is it?

The Sharp Wizard series, introduced by the Sharp Corporation in 1989, was among the first electronic organizers and a precursor to personal digital assistants (PDAs). The debut model, the OZ-7000 (known as the IQ-7000 in Europe), combined organizer functions with an IC Card expansion system, allowing users to install software and memory cards. Over time, Sharp refined the series with larger displays, increased memory, and enhanced features, such as infrared communications port for wireless data transfer, touch-sensitive displays, and clamshell designs.

The out-of-the-box functionality of the OZ-7000/IQ-7000 included a memo pad, a telephone pad, calendar and scheduling with alarms and repeating events, multi-time zone clocks, and a calculator, thus covering all the basic functions found in PDAs since. The keyboard was not QWERTY, although later models, starting with OZ/IQ-8000, changed the orientation of the screen and keyboard layout.

The OZ-7000 was about 6.3 inches (163 mm) tall, 3.7 inches (94 mm) wide closed, 7.25 inches (184 mm) open, and 0.85 inches (21.5 mm) thick closed, making it much larger than later PDAs. It featured a serial port (proprietary connector) to attach to a Windows PC or Macintosh or another OZ-7xxx/OZ-8xxx device, an optional thermal printer port and a cassette tape backup. The OZ-7000/IQ-7000 model featured 32 kilobytes of internal memory and a 96 x 64 dot (8 lines x 16 characters or 4 lines x 12 characters) black and white LCD with controllable contrast but without a back light. A major advertised feature of the model was the IC Cards expansion slot for accessory cards developed by Sharp.

Wikipedia

A bit of a break from the mountain of photographic equipment I have been dealing with lately, I thought I’d take a bit of a detour and have a look at some prehistoric PDA gear, as I have also done in the past, as you will no doubt be aware of, if you have ever read any of my posts on Psion organisers.

From what I can gather, this one is a little beaten up and battle scarred, and quite simply does not work. I’ve paid the princely sum of £8:54GBP after i managed to knock the seller down by a few pounds. I just now have to await its arrival before we can carry out a thorough assessment.

Assessment:

Its here, everything is as it should be apart from the base being a bit loose in one corner where the clip inside has broken, however that’s not an issue and can probably be repaired.

The broken clip

The exterior is a little sticky but again, this is just one of those 1989 rubber enhanced products where the vulcanised rubber coating has started to degrade. A post I previously published shows how I deal with these 80’s degrading rubber issues: Sticky, Rubber camera grips

The unit has three batteries, under the rear shell. These are two CR2032 and one C1616 coin cell, with the C1616 being the units memory battery. These batteries will need to be tested as this unit does not start up, the whole unit is dead. The previous owner has stated that they have changed the two main batteries but not the memory battery, testing them will tell.

The three batteries

Beyond that, all catches, buttons and switches seem to be performing as expected, no cracks or major damage to the external shell, or screen area. Naturally there are signs of usage as you would expect on an item that is now 36 years old, light signs of age related wear and tear, nothing of concern that is detrimental to its operation.

Repair:

I’m leaving the broken clip on the rear shell as it is, it’s not visibly exposing anything of the interior and to be honest needs quite a bit of force to show the gap, it’s not a problem and not necessarily requiring a repair. In normal handling it is not even noticeable, so it will remain as it is.

The main fault, and I apologise in advance, as it was not really a fault, was a misunderstanding of the unit’s operation by the previous owner. When you take the back off and change the batteries, you have to operate a switch so as to not interrupt the backup of the system.

Battery backup switch there is a “B” and a “A” setting

There are two modes and these are explained below. This switch is located inside the battery compartment and is used when replacing the main batteries to prevent data loss.

  • B stands for Backup, a setting used during the battery replacement process. The device relies on a small, separate backup battery (often a C1616 coin cell) to maintain memory while the main batteries are removed, provided the switch is in this position.
  • A stands for Active (or simply the normal operational position), which is the standard setting for everyday use once new batteries have been installed. 

To replace the main batteries safely and avoid losing your data, you must follow a specific procedure that involves setting this switch to “B”, changing the main batteries, and then switching it back to “A” after the new batteries are inserted. 

The issue here was that the batteries had been changed and the switch was put into the correct “Backup” mode. However the previous owner had not placed the switch back into the ”Active” mode when the batteries were changed and the back of the shell was put back in place. Hence the unit would not work as in theory the batteries were locked out of use. On opening the shell up, this was the first thing I looked at, and when the switch was put into the correct position the unit sprung into life once the “On” button was pushed.

When the switch was set, power applied and the unit reset to 1989

When the unit was turned on it then reset to 1989, I was able to change the times and date, and I was pleasantly surprised to find out that the date range on this unit covered the years 1901-2099. Considering this unit was released 11 years prior to the Y2K bug of 2000, it showed some advanced thinking in the implementation of these units.

One of the issues with this particular unit is that there is no backlight on the display, the display is black and white and the only change that can be made is to the contrast. Back lights eventually arrived with later models. So use of these units was pretty much limited to daylight hours, or whilst under a light source of some kind, that said the display is very good and has a good contrast range.

The unit with an example function card installed
In use in the carpark at work

The last thing I have done is clean with some IPA to remove the years of gunk and I think this was quite successful

The IPA certainly lifted some dirt

After this I have finished off with a nice polish with some car cockpit cleaner. It’s finished this repair off just nicely.

Result:

Here we have a nicely presented, clean and fully working example of a nice little bit of personal computing history.

Has come up lovely

So. With these older items, it’s sometimes good to just have an awareness of how these old timers operate. Get an instruction manual, study how it works, it can make the difference between selling it as damaged, when in fact there really was nothing really wrong with it. The seller could have sold this for 3 or 4 times the value that I purchased it for, but I’m not worried about that, as far as I’m concerned I got myself a bargain and to be honest, that doesn’t happen that often.

It’s a win win situation as far as I’m concerned, I win as I now have a lovely example of pre PDA technology, and it’s a small win for the environment as another piece of “Waste” has been saved from landfill.

Thanks for passing. Thanks for being there. Always appreciated 🙏

Ask someone else

How would you describe yourself to someone?

I’m not about to blow smoke up my own pipe, I really do find this question hard to answer, as I probably see myself totally differently from how others view me.

And that’s it.

It doesn’t really matter how I see myself, I guess the answer is in how you portray yourself in all aspects of your life. Work, leisure, hobbies, behaviours, fears, likes, loves – you name it. I know the person I’d like to be, but I’ll never get there unless I learn the truth and change my ways.

Contentment

There’s only one person I know that can truly describe me to someone, and that someone would be my wife. She knows me better than I know myself, she sees the good, bad and indifferent in me, and to be honest it works in the other direction too. My Wife would probably say she is calm and tolerant, but I’d have to pull her up there as I sometimes see a different side to her that no one else sees. Whereas I’d probably say I’m a people person and I know she’d laugh and pull me up and say I’m the total opposite. And of course she’d be right.

How many people will answer this prompt, and truly turn to someone who knows them only too well and ask them to “Fact check” their reasoning. I doubt many will, so does that mean we will all have either a too low, or even a too high opinion of ourselves?

Sometimes it’s best to get it from the mouth of someone you know well. They don’t do it to hurt your feelings, they are giving it to you straight, it’s up to you then to make changes to become that person you truly “think” you are, or want to be.

Have a good day.

Losing track of time

Which activities make you lose track of time?

There is no doubt about it, that when I get involved in anything, one thing is guaranteed and that is, that you are going to get nothing but a full commitment of time and attention from me.

My main problem is that sometimes I immerse myself so deep that I sometimes struggle to get back out of the situation. Sometimes it maybe just be a helping hand that is needed and not a full scale immersion, and that’s where I sometimes struggle to find the fine line, it’s a personal issue I have always had.

I’ve learned a few harsh lessons in the past where a helping hand was all that was needed. The people I have been helping were either more than capable at completing the task, or had people with them that would have benefited more from participating in the task, rather than having me jump in and take over. I think I have become more aware of this now and even though I always wish to see a task through to its conclusion, I reluctantly stand by and am instead happy to offer advice if necessary. I just find it hard to take that step back occasionally.

I’m generally a busy person, just of my own making. I may not appear busy to the person passing by, however my brain is in overdrive keeping me busy or working something out within.

So in conclusion I’d say that pretty much all activities make me lose track of time. In some people that would probably make them bad timekeepers I’d guess, however that is again a problem I do not have. I like to help, though I guess my help may not always be appreciated, I just like to get involved, and I can be relied on to be there on time.

It must be horrible to have a wasted lazy lifestyle, however I do appreciate this is not the way everyone operates.

Maybe I need to lose track of time more often, just taking it easy. But hey, that’s just not me I’m afraid.

Have a super successful day folks

Panasonic Walkman cassette player RQ-P250

At a family gathering this weekend, an elderly family member approached me and asked if I could take a look at his Panasonic personal tape player, and maybe get it back up and working.

Who am I, to turn down such an invitation, so I took it on and promised him I’d have a look into it. There is, “No rush“ I was told. Just as well, as it’s busy in every aspect of my life at the moment.

Here’s the spec:

Type: Auto Reverse Cassette Player

Tape Type: type I, CrO2, Metal

Output: 20mW

Battery: 2 x AA

Power Supply: RP-AC33 (3V DC)

Dimensions: 114.2 x 84.4 x 33.1mm

Weight: 156g

Finish: black

Year: 1993

Hifiengine

Panasonic RQ-P250

Assessment:

It’s well used, and has always been and if I can get it working, will continue to be so. At the grand old age of 79 my brother in law is not about to change his ways and is quite comfortable listening to his old Cassette collection whilst out and about, on trains quite a bit of the time, as he travels up and down the country. He’s a lovely old fashioned set in his ways guy and we wouldn’t have him any other way. It would be blooming lovely to get this back to him working again.

It’s scarred, been well used but looked after, apparently it’s gone from playing quite well, to slowing down and dying completely. I think I know what the issue is but I’m not going to curse myself by saying I know what is wrong, when it actually turns out to be something totally different.

On the Beach – Chris Rea

And I love his choice of music. Let’s get this repair underway so we can listen to Mr. Rea in a lovely crisp sounding manner befitting of an 80s rock star.

Repair:

Batteries in place, earphones connected, push play. No movement from the capstans, and even when put in forward and reverse there is no movement from either capstan. I can hear all the electrical noises such as the tape head picking, and I suspect at the grand old age of 32 years old that the drive belts have probably given in. Let’s open it up and have a look.

And just as I thought. Two drive belts in here, they are both loose, one though is so loose that it has wrapped itself around the two capstans, no wonder it wouldn’t start up.

I have plenty of these belts spare, I just had to sort out the two closest matching in size. Too slack and you introduce warble, too tight and it will be off speed, you need to get it just right. Adjustments can be made to the motor speed but this will only come back to bite you once the belts wear in.

I’ve put two new belts in place, and at some frequencies there is a little wobble, but with Dolby switched in place this can be removed digitally, this will settle over the coming weeks after more use.

I have used some silicon grease on the cogs, I have put contact spray in the motor and the volume controls, and used IPA to clean all the tape contacts and capstan wheels and posts, it’s basically been given a little service to see it forward for a while longer.

Body now reassembled, new batteries put in place, it’s time to test it.

Result:

A quick polish, to tidy up, won’t get rid of the deep scuffs, just makes it a little more presentable. Cassette inserted, headphones plugged in and as expected it’s working just fine, we can hear Mr.Rea in all his gravel voiced glory. So can you, in this video snippet below, that hopefully won’t get a copyright strike 🤞

🎶 On the beach 🎵

So there we have it. Another item brought back to life with about 30 minutes work. It’s going to make someone’s day, and I’m as pleased as punch that I could play a part in contributing to that.

There you go. Hope you enjoyed this quick fix.

Many thanks for passing by. Always most appreciated.

Today, brought to you by the number 21

A title that sounds like an intro into the latest episode of Sesame Street, refers in reality to a question my wife has put to me over the last few days.

How many projects do you have on the go at present?

Now, she wasn’t asking how many types of different projects i get involved in, she was specifically asking due to the amount of deliveries that i am currently getting from online sale rooms and auction sites. I didn’t honestly think about it at the time, I wasn’t aware of the actual number, however i am now very aware.

A selection of outstanding repairs that I have in draft mode

And that number is 21. I have that amount of draft repair posts on this platform awaiting completion. Some are quite complex and demand time that i just don’t have at the moment, others are awaiting components that are needed to complete them. My wife, bless her has pointed out to me that rather than obtaining yet more items for repair, wouldn’t it be better if i just cleared the back log first? She is of course right, and a small selection of those draft posts awaiting attention can be seen in the photo above.

Not only do i have a back log, i also have a number of boxes that are full of now, fully operational items varying from microphones and cameras all the way through to a working music system. I think i need to break away from sentimentality and start to move some of these items on. To be honest this would be the best thing to do as it would release some funding for a few other projects that i wish to look into in the near future, and it would also create some extra space at home.

I love being busy that’s just me, knowing i have a batch of drafts awaiting allows me to spread my focus over a wider area of interest. I do pop into them all occasionally and just add a few lines here and there, or an item of interest that I’ve just remembered, so they are all in fact works in progress. I do need to concentrate on that backlog though, and maybe reduce that backlog to probably 5 or 6 repairs in total.

This whole website/ blog thing has been something that I have really put my heart into, I’m by no means an ace practitioner of blogging practices and I have never set out to be such a person, and will definitely never be one. I started this site purely for my own benefit, an extension to a journal i used to keep at home, that i may have discussed within these pages a few times previously. I’m not trying to teach anything, it’s a personal record of my failures, my learnings and achievements, and it just works just fine for me.

I really don’t understand how it has now gained a good few followers, I never expected that but I am eternally grateful to everyone who reads a post or comments upon them. That said i would still do the same if there was no one paying an interest in what is posted. Again, as stated earlier in this post, it was always set up as a personal journal. And it has worked for me. It has been a good well being tool.

So. I have temporarily agreed to cease any further purchases until I’ve got the backlog under control, and I’ve also agreed to employ a one in, one out policy in regards to all repairs and incoming projects, and believe me there are some quite complex ones to be published shortly.

Let’s call it a late spring clean.

Happy wife, Happy me, Happy life.

Have a great day.

Are you busy?

This is the first prompt for days that I’ve been able to answer as I’d already answered those others previously. I’m going to make a slight change to this prompt and remove the word “Hate”. I never use this word as it’s such an awful one, and unfortunately it’s too prevalent in our world at present. I’m going to use the word “Dislike” as dislike can always be improved upon rather than the other word that is just so final. Once Hate is in place. There really is no turning back. So here we go.

What is one question you dislike being asked? Explain

Anyone that keeps an eye on this blog and reads the content will know I’m an individual who likes to keep himself busy. Just look at the projects and stuff I’ve posted recently, and the fact I still have 18 posts still in draft mode and you will see I’m a busy guy. On top of that I am a full time employed individual with a house to run a garden to look after and a wife who loves spending (Bless her x)

My time is quite well planned, so when that phone call comes in asking me, “Are you busy?” That’s when I have a sharp intake of breath. Normally it involves fulfilling tasks for friends and family, giving time that is precious to me and in many cases already accounted for. Now don’t get me wrong, I do not mind helping anyone, there is no greater pleasure in seeing someone’s face light up at the end of a well done project. The thing is I take so many on, that it normally means the same job at my own home is being neglected, it’s always more fun doing the job at someone else’s property for some unknown reason though.

The reason I dislike being asked is that I just can’t damn well say no. Saying no makes me feel guilty but that’s just the guy I am. I guess to me it’s just like that word “Hate” it’s just not in my vocabulary.

So that’s why I dislike being asked this question as I’m just not wired to say “No”.

One day I’ll learn to say it. But that’s not today. And probably even tomorrow.

Hey ho.

Happy days everyone.

Another tatt

This time I’ve gone with a basic cross. I’ve always stated there was always a reason behind every tattoo I have and this one is no different. This represents my faith, I don’t push it to anyone it’s very personal, but some times I question it, and go quite deep with it.

We had an old cross in the house and I often looked to that in times of fear and uncertainty. The reason that it is a battered cross, matches my faith and my upbringing. It’s always there in some form but it’s been through some battles with me and is scarred. But it still remains, it’s still there battered and damaged, but still represents strength and hope.

Simple is all it needs to be, such a symbol does not need complexity, and now late in my life I’m happy and confident enough to be proud of my faith and what this symbol means to me, and how it helped me through such a horrendous childhood. I choose this as art that represents a period of my life, and as always if anyone asks me what it represents, I can honestly tell them how this helped me through troubled times.

Peace.

It’s unconditional

Can you share a positive example of where you’ve felt loved?

It was the 14th February 2018. Happy Valentine’s Day. I was told I had a cancerous tumour.

I was numb. We went out the following day for a lovely walk and all we did was discuss the elephant in the room throughout that whole trip. Even looking at the photos of that day I can see the false smile on my face as well as the concern on my wife’s.

False smile, worry in her eyes, not a good day

I went into serious withdrawal from life, as I knew it. I suffered severe depression. I didn’t share my feelings with the one person who knew me best. I kept it all to myself and it was all too much, I broke down. It was my problem, I’ll deal with it. But I couldn’t. I needed help.

That one person, sat beside me, she cried with me and she comforted me. She cuddled me. She stayed with me and she didn’t let me go.

It was at that point I experienced absolute unconditional love. There was a warmth that went through me, it’s as if she had taken all my worries and concerns and put them away for me, I’ve always said she’s an angel and she has this amazing ability to take away my problems and make my whole life better.

And I didn’t even share my feelings with her. That’s so wrong. I felt so guilty.

Guess what, I share absolutely everything with her now, nothing is held back, the silly issues, the concerns and worries. And you know what, her arms encase me again, that love flows through me as it always does and has done. I feel nothing but love, and it is my life’s task to ensure she feels just the same.

We beat the big C, or should I say it’s at the back of our minds and doesn’t overwhelm us anymore. When we talk about it we use the name “Fred”. The “C” word is no longer used in our home. It’s banished. It’s a horrible word, and my lovely lady did this to make our life less stressful.

My Angel. My Wife. My life.

Peace.

The total opposite

Is your life today what you pictured a year ago?

I like to normally stay upbeat, but these recent prompts have really got me thinking. I know everyone wants to see the “Yes my life is perfect” answers, but I’m afraid you’ll have to head to Insta and Fakebook for those replies. To be honest looking back at the last year it’s been fairly “Shit” to be honest.

Now I’m not going to fill this post with my woes and issues as there are a lot of people out there that have had it a damn sight worse than me, but the question has been asked and I have to answer it truthfully.

The family is on the point of breaking up due to “family” things, there has been illness, emergencies and grief by the bucket load, however myself and my wife have managed to keep smiling through it all, hiding exactly what we feel on the inside. As I have stated, there are others out there that have had it a lot worse, and to be honest my thoughts and prayers lay with them. Being a strong willed couple, my Wife and I can overcome much that life throws our way, and hopefully we have enough left in reserve to help others who may not have that support to fall back on.

So yes, we’ve had a bad year, just like a lot of people, but we have also learned from our discomfort, pain and uncertainty.

So through mild adversity we remain united and strong, and that is a good sign….isn’t it? I guess all is not that bad, once you have faced the pain and issues head on.

Stay safe everyone.

Yes and no

Do lazy days make you feel rested or unproductive?

I have had to change my way of thinking regarding this prompt from WP. I have always been one of those that even on a day off feels like I have been wasteful if I have not done something productive.

However the other side of me has started to realise that I am not going to live forever, I am slowing down and already experiencing issues that are compounding my mobility, so due to these factors I have now decided that these precious and rare days should be used for what they were designated for. To rest.

There is no doubt that your body knows you the best, if it’s telling you to rest, you need to do just that. Though it is admirable to keep on being productive you have to realise that no one really cares what you are doing and you are not going to be remembered for just “Papering or painting” that one more wall.

Rest, do as your body tells you. If it gains you just another day on the planet, it’s a bonus.

Have a peaceful day.