waynestewart
Well-known member
One of my Color Classics had some powerup issues. Tried a different Logic board but that wasn’t it so I decided to recap the analog board. I didn’t have all the parts but decided to replace what I had while waiting for the rest to arrive. Since there were a number of the same caps used I desoldered all of each and replaced those then go to the next.
Once I had those done I thought I’d reinstall the analog board and see if that solved the problem. Once it was together I pressed the power button and nothing. I checked to make sure I hadn’t missed connecting any cables and tried a different keyboard. It was late so I went to bed thinking I’d destroyed a Color Classic.
The next day an idea came to me so as soon as I got home I took out the Analog board and held it up to a light. There starring at me were 2 holes ¼ inch apart. I’d missed putting back a capacitor. Five minutes later it was assembled again and started up as soon as I pressed the power key. The parts I replaced seemed to have solved my powerup problems but when the other caps arrive I’ll replace those so I know I have all new caps.
Once I had those done I thought I’d reinstall the analog board and see if that solved the problem. Once it was together I pressed the power button and nothing. I checked to make sure I hadn’t missed connecting any cables and tried a different keyboard. It was late so I went to bed thinking I’d destroyed a Color Classic.
The next day an idea came to me so as soon as I got home I took out the Analog board and held it up to a light. There starring at me were 2 holes ¼ inch apart. I’d missed putting back a capacitor. Five minutes later it was assembled again and started up as soon as I pressed the power key. The parts I replaced seemed to have solved my powerup problems but when the other caps arrive I’ll replace those so I know I have all new caps.