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Commodore 64 problem


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ok so heres the problem. I have a commodore 64 that i found at a thrift store and would like to save from the trash and use it to play some old games. i hooked it up to a tv and it work. i turned it on and off 2 times cause i was just seeing if it worked and it did. 2 minutes later i turned it on again and it was just a pixelated mess of like green blue purple white black and other colors. it was always a different pixelated mess each new time i turned it on. sometimes there was also some weird bleeps and bloops to. also sometimes it was just a black screen. is there a way i can fix this cause as i said it worked for a little bit than broke down. i looked inside and there no blown fusses or anything burnt out i can see.

 

also if any pictures or video is needed i can provide.

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Ray Carlsen's troubleshooting guide is extremely useful for this sort of thing. Our C64 had somewhat similar symptoms, and in our case it was a blown PLA chip, which Ray was kind enough to replace for us.

 

If you're not going to fix it, there are definitely C64 users who would be happy to take it off your hands for the cost of shipping. If I had the skills, I'd do it, but I don't. Whatever you do, don't send it to the landfill, because 99% of the machine is probably still just fine!

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Oh, yeah, I couldn't get the photos to load before, but that does look like most likely culprit is the Vic-II chip. If yours is socketed (most that I've seen are), I could send you a replacement. Unfortunately, I can't easily re-test it right now, but I would pull from my "tested good" pile and send you a couple of them for just the cost of shipping (hardly anything if you're in the US, actually, if it's only around a buck or so, don't even worry about it). At least then you could try it out and maybe fix it, if that's something you're interested in doing, and if it's not the Vic-II, well, you can go with Plan B.

 

I could also probably dig out a couple other chips too, in case it's not the Vic-II.

 

Let me know, PM me and I can get them out this weekend.

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