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

X902

Base 7.6V 6.5V
Emitter 7V 5.9V
Collector 71V 50V

Any help would be appreciated. Thanks.volt.jpg
Back
Top Bottom