Today I picked up a Tandy Color Computer 3 (AKA Coco3). I don’t know too much about these, but having read an Article in Retro Gamer magazine a few months ago, and seeing there is a very active user base out there, I kept my eye out for this. As usual the first thing I do is pull it apart and give it a good cleaning.
The box is a bit beat up.
The computer itself is in pretty good shape. The photo doesn’t show this, but it is a bit dirty/ grimey.
Here are the standard joysticks, with the connector visible.
Underneath. The strange location for the RGB port is underneath to the left as pictured. Will make an RGB cable later. requires IDC-10 connector.
First step is to pull everything apart to give this a good wash/ clean.
The keyboard needs a good clean, so it needs to be pulled apart. after removing the backing panel, they keys themselves are held in by a plastic lug. These can easily be removed by prying off.
All apart, with pile of keys.
After a good wash with soapy water, with the help of a magic eraser, things are looking great. Some of the white keys are a bit yellowed, will see if I can improve them with a bit of cream peroxide.
I swear its only needed for retro repairs! Ensure you wear gloves when handling this stuff.
I apply the peroxide with a brush then cover with cling wrap so it doesn’t dry up. I strap to a board, then take out in the sun to develop. I can’t be bothered mixing retrobrite, this does well enough for me.
During the re-assembly of the keyboard, the spring for the spacebar key went missing, despite my efforts of putting all components into bags as I went. I couldn’t find it anywhere, and asked my wife for help who promptly found it on the floor after a minute. Phew!
After re-assembling everything, the whole unit looks A grade now! The keys have been restored to white now.