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Museum of the Game® & International Arcade Museum® Forums
Hi,
I have a G07 that I can't get the B+ above 114.1V using the variable POT. It does adjust though. I am using a light bulb for the load and the HOT is not connected. I think I checked all the 900 Resistors (good), X901, X902, FR901, F901, D905 and the POT.
I took some voltage reading with POT maxed:
X901 Schematics Measured
Base 121V 115.3v (adjusts with POT)
Emitter 120.5V 114.7V (adjusts with POT)
Collector 145V 149V