1986 sys 11 High Speed : 5 volts is 12.5v
The game wouldn't come up, felt lots of heat on the sound ROMs and checked 5 volts = reading 12.5v
Replaced the caps on power supply with a 8 electrolytic cap kit, still getting the same voltage.
Took voltage readings at the wires that run to the 2N6059 transistor
Any suggestions ?