Commodore 64 Zero Insertion Force (ZIF) socket mod. C64 Assy 250469 board modified with ZIF sockets for easy IC chip testing. Read more on

The ZIF Socket Mod

Repairing broken Commodore 64’s is usually a matter of qualified guesswork and quite often substitution of chips is the only practical way to diagnose a fault. At least that is the approach I’m using when trying to resurrect broken machines. The challenge with this method is … Read more

Commodore 64C Assy 250469 Rev 4 that came with a strange looking white keyboard. Read more on

Strange C64 Keyboard

A broken Commodore 64C, with an Assy no. 250469 Rev. 4 short board, recently landed on my workbench (the repair job can be found here). The entire machine looks just like any other C64C machine I’ve put my hands on. Except for the keyboard! When compared to … Read more

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

Collection of Commodore 64C Assy no. 250469 motherboards completed!

Collection Completed

I finally managed to get my hands on a Commodore 64C with an Assy 250469 Rev. B short board PCB inside. This was the last board I needed to complete my collection of Version E motherboards (Assy 250469 Rev. 3, 4, A, B & B-Games System). I … Read more

Commodore 64 Assy no. 250469 Rev. 4 motherboards in two different

250469 PCB in 2 colors

I stumbled across an Assy 250469 Rev. 4 shortboard PCB with a different color than the other Revision E boards that I have. This one is green while the rest of my boards are all yellow. I have only seen one green colored Assy 250469 … Read more

Commodore 64 Games System on

Commodore 64GS

I have been wanting to get a copy of the Commodore 64 Game System (C64GS) for quite some time now. However, getting one online is usually expensive (insanely expensive!!) and only very few cartidge game titles can actually be played on the system. A few weeks … Read more