(Topic ID: 216429)

Williams System 7 Pharaoh- no feature lamps

By JodyG

5 years ago



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  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 5 years ago by wayout440
  • No one calls this topic a favorite

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DRIVER Board (Firepower labeled).pdf (PDF preview)

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#2 5 years ago
Quoted from JodyG:

Checked for good 16v coming out of the power supply and into 2J4 on the driver board.

Double check the easy. Check continuity for the lamp grounds 2P6 ---> 3P4 ---> chassis ground. Another thing to check is, are the bulbs good....on the off chance that all of them are blown - it does happen.

3 months later
#6 5 years ago

I certainly wasn't expecting that.

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