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retroshaun
22-02-14, 08:14
Well - I had a C64 sitting here for some time with dead audio. I assumed it was the SID but it seems that this could potentially be a problem with the 9V line. From what I read you can verify by trying to operate the cassette but I don't have a datassette to hand. I did measure the pins and 5V seems good but 9V gives a 0v reading.

Anyone else had experience with this? Is it worth trying to fix the PSU or am I better off just finding a replacement? Ebay prices are kinda up there - I can almost get a new system for the same price, and I would rather avoid hacking a PC PSU if possible.

Any advice greatly appreciated!

indieseoul
24-02-14, 06:57
Well if you are serious about having a working C64 then a replacement PSU is your best bet. Even if your C64 is broken you can always buy a cheap one off of ebay or at a flea market that doesn't have a power supply. Kynrek recommended this particular ebay seller to me and it looks as if he has a pretty good deal on a trouble free new replacement power supply: Basic Wayne (http://www.ebay.com/itm/COMMODORE-C64-64C-Custom-Replacement-Power-Supply-NEW-/301101271712?pt=US_Vintage_Computers_Mainframes&hash=item461b08caa0)

As for fixing your power supply the chances are you have an un-repairable one. If there are screws in it then yes you can take it apart and fix it there are tutorials online. The vast majority however are the black or white brick models that are designed to be impossible to take apart or repair. To be cheap Commodore even filled the thing with epoxy which makes it overheat and also impossible to repair.

Just noticed he also sells this which would be handy if you plan on using a disk drive with it: All in one (http://www.ebay.com/itm/COMMODORE-C64-64C-1541-1541II-1581-Custom-Replacement-Power-Supply-NEW-/301095385928?pt=LH_DefaultDomain_0&hash=item461aaefb48).

retroshaun
24-02-14, 10:48
Thanks dude... thats more or less what I thought. I did look at those ones, I guess I need to grab one although I did want to keep it original if possible :(



Well if you are serious about having a working C64 then a replacement PSU is your best bet. Even if your C64 is broken you can always buy a cheap one off of ebay or at a flea market that doesn't have a power supply. Kynrek recommended this particular ebay seller to me and it looks as if he has a pretty good deal on a trouble free new replacement power supply: Basic Wayne (http://www.ebay.com/itm/COMMODORE-C64-64C-Custom-Replacement-Power-Supply-NEW-/301101271712?pt=US_Vintage_Computers_Mainframes&hash=item461b08caa0)

As for fixing your power supply the chances are you have an un-repairable one. If there are screws in it then yes you can take it apart and fix it there are tutorials online. The vast majority however are the black or white brick models that are designed to be impossible to take apart or repair. To be cheap Commodore even filled the thing with epoxy which makes it overheat and also impossible to repair.

Just noticed he also sells this which would be handy if you plan on using a disk drive with it: All in one (http://www.ebay.com/itm/COMMODORE-C64-64C-1541-1541II-1581-Custom-Replacement-Power-Supply-NEW-/301095385928?pt=LH_DefaultDomain_0&hash=item461aaefb48).

indieseoul
25-02-14, 09:04
Well if you want it to look more original you could always buy a Commodore 128 power supply and an adapter. They look kind of similar.