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Author Topic: Advice regarding copper track repair on board  (Read 1721 times)

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Offline AdelaideAmigaTopic starter

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Advice regarding copper track repair on board
« on: June 04, 2015, 09:14:00 AM »
Hi everyone,

I have an interesting piece of Amiga hardware that I do not want to part with and would like to get it working.

It appears to have broken copper tracks through battery damage.  The tracks themselves are very thin and close together.

Could I pick someone's brain as to the best way to go about repairing such an item?

I have read some methods online but am still unsure about how to proceed at this stage.

Best Regards to all,

George
 

Offline hese7

Re: Advice regarding copper track repair on board
« Reply #1 on: June 04, 2015, 09:24:46 AM »
Show a picture of the hardware you are trying to repair.
 

Offline AdelaideAmigaTopic starter

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Re: Advice regarding copper track repair on board
« Reply #2 on: June 04, 2015, 10:58:03 AM »
@hese7 - Great idea.  Photo attached.
 

Offline Framiga

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Re: Advice regarding copper track repair on board
« Reply #3 on: June 04, 2015, 01:12:26 PM »
if you are a rich hobbist, http://www.circuitmedic.com/products/201-3130.shtml.

I've used their PCB repair kits and they are very reliable.
 

Offline JimS

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Re: Advice regarding copper track repair on board
« Reply #4 on: June 04, 2015, 03:21:36 PM »
My thought would be to bridge the open connections back to the nearest via hole or component pin with 30 gauge wire-wrap wire... after cleaning the board to remove remaining crud from the battery.
Obsolescence is futile. You will be emulated. - Amigus of Borg
 

Offline AdelaideAmigaTopic starter

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Re: Advice regarding copper track repair on board
« Reply #5 on: June 05, 2015, 08:44:15 AM »
@Framiga - These kits do look great!  Probably the way to go especially if you have expensive pieces of hardware to fix.

@JimS - Thanks for the advice - just as a matter of clarification, are you saying to make a bridge using the wire-wrap wire?  I'm presuming here you also mean copper wire.
 

Offline Framiga

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Re: Advice regarding copper track repair on board
« Reply #6 on: June 05, 2015, 02:11:12 PM »
If the board if for your own use, go for the wire-wrap wire solution.

Start with cleaning carefully all the corroted traces.

Steady hands, patience and a magnifier!  Good luck :-)
 

Offline JimS

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Re: Advice regarding copper track repair on board
« Reply #7 on: June 05, 2015, 02:44:03 PM »
Quote from: amigaman101;790631

@JimS - Thanks for the advice - just as a matter of clarification, are you saying to make a bridge using the wire-wrap wire?  I'm presuming here you also mean copper wire.

Yes, bridge over the open connections with the wire... but I'd probably follow the open traces back to the first component on each end (or via hole - those little spots that let a trace go through the board) and connect those. It's easier than trying to scrape the coating off the traces and soldering a wire directly to them.
Yes, copper wire. The wire-wrap stuff is just 30ga (don't know what metric folk call it) insulated copper wire, pre-tinned.
Obsolescence is futile. You will be emulated. - Amigus of Borg