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Old 07-15-2018, 02:10 PM   #3
Great Sage 齊天大聖
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Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,229
Default Re: Commodore 64 Display problem.

put the metal cover back over the graphics chip - it's the cooler.

then touch the 8 ram chips - 4164 or similar.
if you burn your finger it's bad.
one other thing - check the psu is actually giving 5v - the potted psu's had a habit of failing in a bad way.
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