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Broken races on analog board Macintosh plus

The MAC MANIAC!

Well-known member
I have a  Macintosh plus and I took off the paper off the analog board I saw what no computer repairman wants to see. Corrosion all along the board. Most of it was clean but some parts had a boat 2 by 2 inches of the board completely corroded. I want to know what to do to jump them. They all are pretty far apart. Some are even 2 to 3 inches. The green upper layer has fallen off and became brittle. Some I can see under it that it's corroded. What do I do to save it and also keep it from coming back! It's running about from top to bottom and mostly around the outside of the board! 

 

AwkwardPotato

Well-known member
Do you have a picture(s) of the corrosion? The way you describe it makes it sound like a lost cause, especially if the solder mask (green layer) is peeling away.

 

jgk

Member
That looks somewhat nasty. I'd just buy a replacement analog board on Ebay. There are deals to be had there, every so often. BTW, with this level of damage on your analog board, I can only wonder what condition the logic board, and the monitor neck and yoke are in?...

 

Trash80toHP_Mini

NIGHT STALKER
+1 That's a Flyback/grounding clip donor for sure. The former is tending to go and the latter goes missing. The rest of the bits are worth storing it away as well.

 

trag

Well-known member
L1 adjustable inductors are unobtainium too, until/if we work out the details of fabricating them.

 

The MAC MANIAC!

Well-known member
I have a plan

1 New Capacitors

2 New flyback

3 New mask + Trace patches

I will try what I can to save it because I can't afford a new board.

Any other things you suggest?

 
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