Good evening. I own a colecovision and I am having gabled video issues. I reached out to another repair facility and they advised me that it is either 1. the power switch or 2
The condition is called ‘Scrambled Video’ and is common. It usually is caused by one of 7 ram microchips that becomes sensitive to the voltage, usually low voltage, and stops holding the video properly. In the past we used software to help locate the bad chip(s) and replace them to do the repair. But the repair sometimes led to many of the chips being bad, or the master R80 chip being bad, and possibly not being repairable as the troubleshooting continued. And, to make matters worse, some circuits used an uncommon RAM chip that is no longer available, so the repair could not be made. All this became very expensive, and uncertain, so we stopped doing the repair.
I was wondering if this is something you could fix. If so, I'd be interested in getting that done as well as the RGB mod. I have a supergames module on order and I want this machine to be in tip top shape. Lastly, would you be able to break down the cost of everything. Thanks, Tim .