Commodore 64 Assy 250469 Rev 4. repait log. Faulty RAM modules, CIA and power switch

Memory Trouble

A black screen Commodore 64C Version E short board (Assy no. 250469 Rev. 4) landed on my workbench a couple of days ago. Everything started out as a simple power switch replacement and memory IC swap, but ended up being a little more complicated than … Read more

Commodore 64 capacitor modification by exchanging the old electrolytic capacitors with new ones.

The C64 Capacitor Mod

Despite the differences in opinion on the online forums regarding the exchange of the electrolytic capacitors, I always put in new ones when repairing a Commodore 64 board. I do not believe that exchanging them would do any harm to the board besides (hopefully!) prolonging the total life span of … Read more

Commodore 64 Reloaded SID voltage is a little high due to a wrong diode at D5. Problem fixed by Individual Computers.

C64R SID Voltage

I was one of the lucky few who actually ‘won’ one of the first Commodore 64 Reloaded (C64R) boards in the e-mail auction earlier this year (the board can be seen here). At that time I stumbled across a C64R thread on a German C64 forum (Forum64.de). The … Read more