asteroids g05 802 monitor problem

sconfu

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so i picked up an asteroids out of a basement of a house being gutted yesterday and need a bit of help

the double pole switch on the back was broken, so i was hoping for an easy fix.

get a picture that is nothing but a black screen with light flashes at the top, almost like a storm cloud in the dead of night.

when you power it down you get a short glimpse of some normal looking vector lines

any ideas?
 
Could be a board issue - pull all the ROMs and look for bent/broken/oxidized legs (sometimes you get lucky)
 
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