(Topic ID: 147956)

Bally High Voltage won't adjust

By jwilson

8 years ago



Topic Stats

  • 10 posts
  • 7 Pinsiders participating
  • Latest reply 7 years ago by barakandl
  • Topic is favorited by 5 Pinsiders

You

Linked Games

  • Meteor Stern Electronics, 1979

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#10 7 years ago

If the pot does not adjust the high voltage and the HV IN = HV OUT. The transistors in the HV section are shorted. Probably all three of them. You can be guaranteed the transistors are bad if the 82k or 22k resistor (i forget which one now) is burnt.

I put together HV rebuild kits for Bally Driver games. I made about 25 of them, i need to figure out the price point and put them on my website.

I fix these driver boards too.

Thank you
Andrew

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