What the listing stated:
The item has previously been owned before and unfortunately the batteries were left inside to corrode. When tested the computer part does not work.The pieces are a complete set for playing without the computer. Please see photos.
EBay



The unit looks clean cosmetically, and all the pieces are present. The computer side is not working probably as a result of the corrosion that is present in the battery compartment.
So I’ve paid a grand total of £11:49GBP for this unit which is probably slightly above its value. However it was from the St.Helena Hospice in Colchester, so I do not have an issue with this. In fact if I can get it working it will be donated straight back to a hospice I support here in Leicester – LOROS hospice. So all around, everyone benefits. I don’t play chess so it will not be used by me, I believe this unit was originally released circa 1996, so it is roughly 29 years old.
Not much in the form of instructions online, however I have managed to get hold of some pictures of a quick start guide that should suffice for the moment. I’ll try and get full instructions from somewhere. In the meantime, the video above shows how easy it is to setup and use.
Let’s wait for its arrival to make an assessment.
Assessment:
The item has arrived and cosmetically it’s not too bad. There is some writing ink on the lid, and some staining on the base. but nothing that a good clean wouldn’t see to.


Open the battery compartment and all contacts are in serious need of a good clean or replacement. Battery corrosion is bad. All playing pieces are included and that’s always a bonus. I do believe that the issue here is purely to do with the acid corrosion, as when tested with a multimeter there is no continuity through the contacts. If the corrosion hasn’t gone too deep this should not be too much of a problematic repair.
Repair:
Now inside of the unit we can see the extent of the corrosion and thankfully it hasn’t reached the circuit board as the battery compartment sits just to the side of it.


I’ve disconnected the wires from the battery compartment so i can it take it away and concentrate on removing the contacts and cleaning them, or completely replacing them.


The contacts are in such a poor state and so far beyond recovery that I have decided to replace them all. I need two single and three double AAA size contacts. Luckily I do have plenty of these in my current stock.
Prior to fitting the new contacts I will give the entire battery compartment a good clean with some IPA to remove the residual contamination. I will then dry the unit and just use some furniture polish to buff it all up and make sure it’s as clean as the day it left the factory. Once this is done the new battery contacts can be put in place. I can then re-solder the two internal battery wires back into place.



New AAA battery contacts in place I just put in the batteries, to confirm continuity with the multimeter. A good 6.4v indicates this part of the repair is good and that the contacts are all working.
Next I’ve decided to replace the two wires from the battery compartment to the circuit board, as the wires, especially the negative one appears very brittle, probably a combination of age and the battery acid contamination.

I’ve tidied the wire run up by using some Kapton tape to secure it to the shell so there is no chance of a wire pinch.
Before closing the shell up, I use some hot glue to put the speaker back into place.

Now we can get the last four screws in place to secure everything together.
Then switch on…does it work? You betcha, it does everything that it’s meant to, and even though I don’t really know how to play, I do manage to challenge the computer for a good ten minutes. It’s been a great test run and even though I’m not that clued up it is working how it should and is now back in a perfect working order. I’ve created this little video below.
Now just a little spit and polish and we can bring this repair to a close.
Result:
It’s polished up well apart from a bit of age staining on the rear, this makes no difference as it’s only the hidden part of the case and every game related part of the unit looks fantastic and it works just fine.



Really pleased with this especially as it’s going straight to our local hospice for them to sell on. It was brought from a hospice, and is going back to another, what better way to generate funds for them. I can’t play chess so this unit is wasted on me. Might as well pass it on to someone who’d appreciate it whilst giving some much needed financial support to a most worthy cause.
Another one saved from landfill. Win win all around.
Thanks for passing by and reading this post. It’s always very much appreciated.

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