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(Topic ID: 270270)

Firepower Lamp row not working

By kcmoejoe

3 years ago



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  • 7 posts
  • 3 Pinsiders participating
  • Latest reply 3 years ago by Don_C
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#2 3 years ago
 
DJC

Don_C

Pinside member

US Milwaukee, WI

12y 46,850 550 21

Use a logic probe up the chain from the pre-driver and look for stuck line. Probably one of the buffer chips or the PIA (if socketed, swap the pia with another).
Could also be a cracked solder joint on a chip leg.

Don C.

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#7 3 years ago
 
DJC

Don_C

Pinside member

US Milwaukee, WI

12y 46,850 550 21

Wire breaks can be tough, but your logical approach is going to get it done. Happy flipping!

Don C

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