Black widow having video corruption issues

danpiraino1971

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Im posting pictures here of the black widow I have. Game plays but video corrupted. goes into test mode. shows corruption there too. One shows test screen 1 thru 4. Resets to 1 after 4. Screen 4 is just blank and makes loud buzzing noise. Posting 5 pics. First three are test mode and the other two are the atract mode. Any help pointing to the right area would be appreciated. Could it be the counters or the latches?

Dan
 

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Mine had (sort of) similar issues and I put a new AVG chip in it and it worked good as new. I borrowed one from Star Wars to test it first. Easy to test if you have a spare one since it's socketed.
 
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