Neo Geo mvs 4 slot partial sound

martimagico

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I have a 4 slot that I battery modded and recapped the audio on a few years ago. It has been awesome, no problems at all. Then while testing a monitor in this cabinet, I hooked up the ground to the wrong chassis point, heard some arcing and turned it off, when I found the problem, I powered it back up but now only have certain sounds

In bust a move I do not have sound on the neo geo power up, or in the attract or start menu, but gameplay sound is good.

In street slam, no neo geo startup, select screen gives me sound effects but no music and gameplay also gives sound but no music

Metal slugs have no sound at all

The test menu has good tones left right and center

Headphone jacks are identical to audio in speakers
 
were these games in the machine at the time of arching? if so i think its possible the damage went to the game pcbs and affected them that way. if you have a mvs cart that was not installed try that and see if its normal sound.
thanks
blake
 
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