(Topic ID: 324442)

no more 5v on the machine BOP

By lanfeust

1 year ago



Topic Stats

You

Linked Games

#1 1 year ago

Hi everyone,
I have a the machine BOP, the game was 95% working. first time, the game powered up normally, but when I restared it, the cpu did not boot up. after a quick check, I found there was no 5v on the driver. All others voltage were present and good. I switched both cpu and driver into another game, and the game start normally, so cpu and driver are good.
According to the schematic, only connector J101 brings the voltage for the 5v, but how can I mesure the voltage on the connector? and does it really come from the connector, could it have another reason for this porblem? thanks for your help.

#2 1 year ago

Burnt pins at the J101 red wired connections?

The raw AC voltage that turns into 5VDc comes from the transformer.

#3 1 year ago

Measure AC voltage between the two pins with red wires at J101.

Should be at lease 9VAC.

Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info

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