(Topic ID: 235212)

Trying to understand this old transistor repair

By ktownhero

4 months ago

Topic Stats

  • 11 posts
  • 8 Pinsiders participating
  • Latest reply 4 months ago by 2manypins
  • No one calls this topic a favorite


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#1 4 months ago

I'm in the midst of restoring my first machine: a System 11 JOKERZ!. The board has some old repairs that I would like to clean up. Im not entirely clear on what is going on with this transistor. I would appreciate any input on the proper way to clean this up nicely. It looks like the middle lead is attaching to a trace on the back and the other two are attaching to traces on the front.

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#2 4 months ago

looks like the original pads have blown out or been accidentally removed in previous repair. They have simply scratched off some solder resist and soldered directly to the trace hehe.

#3 4 months ago

if its still working, i wouldn't touch it.....

#4 4 months ago

It just kinda looks like shit and if I resell this I don't like the idea of leaving it like that.

#5 4 months ago

Since the pads are gone there's nothing you can do to make that not look like shit. I'd leave it alone if it's working.

#6 4 months ago

Here's my Jokerz Q31. Yours looks pretty good!

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#7 4 months ago

And here is the fix!

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#8 4 months ago


#9 4 months ago
Quoted from BethlehemBill:

Here's my Jokerz Q31. Yours looks pretty good!
[quoted image]

Wow, that's crazy. Is there something up specifically with Q31?

#11 4 months ago
Quoted from BethlehemBill:

Here's my Jokerz Q31. Yours looks pretty good!
[quoted image]

That is too funny! Thanks for the laugh this sunday morning. Glad both of your machines are still working.

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