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(Topic ID: 116651)

WPC all switches don't work

By dudah

9 years ago



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  • 6 posts
  • 4 Pinsiders participating
  • Latest reply 9 years ago by dudah
  • Topic is favorited by 2 Pinsiders

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#4 9 years ago
 
ROB

Borygard

LockWhenLit.com

US St Louis, MO

11y 90,050 2,915

If your plan is to replace the LM339s, you're just digging a deeper hole, they're not bad. You took out traces/thru-holes when you replaced the bridges and caps (blanket replacement of these parts is ALWAYS unnecessary) and lost 12V for the switch matrix, and dedicated switches. That's my educated guess by your description anyway.

Measure all your voltages from the driver board, you'll likely find the switch matrix regulated 12V is now gone.

--
Rob Anthony
Pinball Classics
http://LockWhenLit.com
Quality Board Work - In Home Service
borygard at gmail dot com

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