Gottlieb System 80A AR02 power issues

disjaukifa

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Hey Guys,

I've got an AR02 board in a Gottlieb System 80A machine that isn't outputing 60 volts and 48volts on pins 1 and 3 on the J3 connectors. Here is what I'm seeing:

Pin 1: 00.2 volts (Should be 60 volts)
Pin 3: 00.2 volts (Should be 42 volts)
Pin 6: 4 ~ 5 volts (Should be 8 volts)
Pin 7: 4 ~ 5 volts (Should be 4 volts)

Pins 6 and 7 change pending how you adjust the pot the AR02 board. Any suggestions on where to go from here would be highly appreciated.

Thanks
Disjaukifa
 
Hey Guys,

I've got an AR02 board in a Gottlieb System 80A machine that isn't outputing 60 volts and 48volts on pins 1 and 3 on the J3 connectors. Here is what I'm seeing:

Pin 1: 00.2 volts (Should be 60 volts)
Pin 3: 00.2 volts (Should be 42 volts)
Pin 6: 4 ~ 5 volts (Should be 8 volts)
Pin 7: 4 ~ 5 volts (Should be 4 volts)

Pins 6 and 7 change pending how you adjust the pot the AR02 board. Any suggestions on where to go from here would be highly appreciated.

Thanks
Disjaukifa

Not sure what you mean by an "AR02" board for a System 80A.
But sounds like a blown fuse on HV supply? Did you check to see if you have HV coming into the J1 connector? Through backside of connector when plugged into your supply -- measure the AC voltage between pins J1 pin 7 and J1 pin 8?

J3 should not see 8 or 4 volts on pins 6 and 7. These should be 5V to run the logic on the display boards. The 8 volt supplies go back to the transformers to add an offset to the filament voltage. There is no 4V supply on the 80A supply.

Ed
 
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