Bally Viking

[MGV]

Hello all.....

It starts.... i have soldered the new transitor and resistor in place and replaced the thumper solenoid.... when i switch game on the lights behind the backglass come on and stay on.... the lights on the playfield come on and then go off...nothing smells distressed

I have started to test voltages at TP's but on the AS2518-18 transformer board, i can not find the GND point,
Also test points 3,5,6 have had power wires taken from them.....it's taking time to trace this but should be sortable..

any ideas on the transformer GND location?

Thanks Mark

 

[backbox]

any ideas on the transformer GND location?

The end of R1 (the end marked R1) is quite convenient.
Not really the transformer ground, more the common neg of the rectifiers.

Rob