Interesting fault: After playing around with my childhood C64 breadbin from 1983, the screen suddenly lost all contrast and went very dark. #retrocomputing#commodore#c64 1/3
Somehow the luminance signal had failed and the whole screen content was even below the black level! (bad output compared to annotated correct output signal) 2/3
That all pointed to a bad VIC-II chip, so there was nothing I could do but replace it, which is not exactly cheap anymore. But it fixed the problem. 3/3
@ipaschke Interesting fault indeed. I’ve seen a couple of VIC-IIs fail in weird ways (mostly losing sprites or flickering or gradually starting to display random characters on screen) but this is a new (to me) way. Thanks for sharing!
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