The Future was 8bit

Commodore 64 Repair - 2

C64 with a simple memory fault

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Clean C64 with poorly fitted label

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Back in the day, I had a Vic20 with a label fitted like this. Quality control at it's best!

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Hmmm.. I've seen this sort of fault before..

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Check this out.. Keyboard removed, TV switched off.. How do you know if it's still switched on? Ta-da!

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Nice and clean inside.. Time to run it up for a bit to see what gets hot.

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The piggy back method gives you an educated guess identifying the faulty IC. Just push a known good memory chip over the chip to be tested. If the fault changes/improves, you have a good chance of pin pointing the faulty chip without soldering!

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So what are the red dots for.. I mark the chips to identify the original parts. I traced the faulty ram chip using the piggy back method..

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Sorry for the lack of photos of this repair, it didn't take me long.. so I just got on with it!.. Anywho, capacitors replaced new memory chip.. Job jobbed!

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Wonky label, wonky memory chip. Another happy C64 owner!