Tim · @timrb
57 followers · 107 posts · Server aus.social

All fixed up! From trash to treasure with this breadbin C64. This has been a most satisfying repair. New RAM and a KERNAL ROM replacement. Keys and case washed.

#commodore64 #commodore64forever #retrogaming #retrocomputing #c64 #retrocomputers #8bitcomputing

Last updated 2 years ago

Tim · @timrb
47 followers · 96 posts · Server aus.social

I decided this morning I would test the I got the other day and see what condition it's in. The case is in good shape. Powering the system on gave me a power LED, but no video. After putting in the deadtest cart and wiggling the switch I got a black screen, but no test screen or flashes.

The case screws are worn and after taking off the cardboard RF shield it's even more evident that someone has been inside. A couple of the failure-prone MT 4264 RAM chips have been replaced with 4164 and 8264 chips. Only one RAM chip is socketed.

I noticed U4 KERNAL ROM was getting hot, so I removed it and got a 5 flashes l, but also 2 flashes from the deadtest cart.

To do:
* Remove RAM
* Install sockets for RAM
* Install new RAM and run dead test/diag
* Replace faulty KERNAL ROM
* Bath time for case

#commodore64 #commodore64forever #retrocomputing #electronics #8bit #8bitmicro #8bitcomputer

Last updated 2 years ago

Tim · @timrb
45 followers · 93 posts · Server aus.social

Today's haul. A and a "breadbin" . I haven't tried to power them on yet. I'm wondering if I should make a video or at least take some photos of the restoration. I've had (terrible) luck with the last few I've acquired working 100% correctly (not counting the RIFA caps in the BBC and IIe machines). Maybe I'll have to get the soldering iron out!

#retrocomputer #commodore16 #commodore64 #retrocomputers #commodore64forever #retrocomputing #electronics #8bit #8bitmicro #8bitcomputer

Last updated 2 years ago