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Apocalypse

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It's shorted to +5V on the board I have and of course schematics are incomplete for that specific output.

1608979696935.png


The board is working but shows the overscan part and since that chip is involved in the Vblank circuitry it's clearly (part?) of the cause.
I also pulled the LS08, it's not the cause of the short.
 

Astro X

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on my original pcb Pin 7 of IC46 is GND..........
 
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Apocalypse

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@Astro X you deserve a dozen likes!
IC13 had an internal short between pin 1 (CK) and pin 20 (Vcc).
 
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