GO7 question

LyonsArcade

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Hello, I have a G07 in a centipede the picture is great but every few seconds it will jump from side to side, thought a capkit might fix it but it didnt, i reflowed all the pots and the video imput, and i've tried to adjust it out but it still jumps from side to side every few seconds,

any ideas?

Thanks!
 
mine does that too
i figured it out it was a bad connector.
i dont remember where it was
prob ob the edgr connector
but i changed them all (meaning all R,G,B sync on edge connector and on monitor)
 
I just replaced the big blue with a big black from Bob Roberts... tried cleaning all the edge connectors, and tried the board in a second cabinet.. still jumps! I removed the eproms and cleaned them, and it still jumps. Crazy. I'm thinking maybe a bad solder joint somewhere on the pcb?
 
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