k4900 man made problem...

paul400

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last night I went over this guys house to try to fix his ms.pacman. he said he wanted to adjust the monitor so he put a metal screwdrive up in there and shocked himself and shorted something out. symtoms were parital vertical collaspse and a slight wave. I knew i wasnt going to fix it on the spot so I swapped out a good chassis for a small fee. got home and recapped the k4900 that got rid of the vertical collaspe but still have the wave. checked the B+ which should be at 130vdc, it was at 163vdc which i think should have but it into shutdown but it was still running, any thoughts.....
 
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