Ok my fellow guru's, I picked up a martial champion by konami its jamma.. used to be a double dragon originally . After play about 5-10 min the game either goes into a rom check or goes into a (what icall a sleep mode). I tested the power supply BEFORE this happens and i have 5.8 volts at the +5 v and 012.8 volts on the 12v out of the power supply. AFTER it goes into (sleep mode) i have 0 at + 5 and 0 at 12v .. I was messing around with it today and took about 10 min and it went to reset checking rom screen and then the sreen was jumbbled (( from what ive read)bad z80) but tested the power supply and had the same reading 0 @ +5v and 0 @ 12 v... Is this a bad power supply ??? Thanks
