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Old 23 January 2019, 23:35   #1
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A500+ repair advice

Saving another A500+ from another battery leak, it didn't look too bad at first and I quickly replaced the first chip.
Tried it again, no luck.
Thought I would reseat the chips and try again, pulled out the Gary chip, half the contacts had corroded away.
Removed the socket, waiting for a replacement to turn up. The traces that have been attacked, I've carefully scraped
away the corrosion and tinned over the tracks where possible. Does anyone put solder mask or overcoat over the affected traces?
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Old 23 January 2019, 23:40   #2
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This is what it looks like so far
When its working, I shall replace all the resistors and capacitors in the are as they are rather
green on the solder pads
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Old 23 January 2019, 23:51   #3
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Yeah, the Gary socket is often the first to succumb to the corrosion, causing a black screen and no activity on boot. The Agnus socket can also be damaged if the leak is particularly bad, so it might be worth checking that too.

I would remove all the solder mask from the damaged/dark traces and clean them all back to bare copper, then replace the solder mask. Tinning them will work too, but I prefer to go over them with a lacquer or epoxy for the job. CircuitWorks do an epoxy that's good, but also expensive. Conformal coating is the type of lacquer that can be used too, and you can get that in an aerosol spray.
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