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(Topic ID: 302195)

Shorted Transistor Help

By Nmyhead7

2 years ago



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  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 2 years ago by kevmad
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#4 2 years ago
 
???

kevmad

Pinside+ Addict

US Madison, AL

12y 51,300 864

Upstream transistor sounds suspect, Q30 on CPU board. And will probably have to replace this Q3 transistor again too.

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#6 2 years ago
 
???

kevmad

Pinside+ Addict

US Madison, AL

12y 51,300 864

I have read in Cliffy's pinball repair guide to always replace both the damaged transistor and the upstream transistor. I've done this every time and it works for me, at least

2 weeks later
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#9 2 years ago
 
???

kevmad

Pinside+ Addict

US Madison, AL

12y 51,300 864

Glad it worked!

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