> RAM or memory latch would be my first guesses, but I don't have schematics in front > of me for that board...
Ah, according to CPU Sheet 14 of 16, U2 & U3 feed out to RED GUN and part of GREEN GUN. U20 & U21 feed out to the rest of GREEN GUN and BLUE GUN.
So, I guess, the problem might be between U2 & U3.
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