Ms Pac screen yellow

BobsterD

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Has anyone ever had this happen to them, I have a Ms Pac that the screen looks almost like it's turned into a "negative" of the screen output... the background is primarily yellow-ish green. Would this be more of a gameboard issue?
 

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It seems all the other colors are still there. It looks to be a monitor issue to me. Have you tried adjusting the green on the monitor? It looks like the green is cranked way up.
 
Yup... green gun issue on monitor. Check for shorted output transistor or busted solder joints.
 
I recently had one where a color was on all the time and it ended up being a cracked neckboard. The crack wasnt all the way through and was only visible after I removed the cardboard cover from the back.
 
Strange... the monitor was recapped recently and was working well for a couple of months, then just changed to this.
 
Interesting new development... today I went to the location and plugged in a new monitor to test, and only got blue. Plugged the original back in, and same original problem exists. I think I have a gameboard problem.
 
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