Repairing A4000 leaky NiCd damage?
tothwolf at concentric.net
Fri Jan 2 19:15:17 CST 2015
On Fri, 2 Jan 2015, Alexandre Souza wrote:
> On Fri, Jan 2, 2015 at 7:36 AM, Peter Corlett <abuse at cabal.org.uk> wrote:
>> On Fri, Jan 02, 2015 at 01:23:14AM -0500, Ethan Dicks wrote:
>> You didn't say what kind of A4000, but I'm assuming you are referring
>> to the Amiga, as this is a known problem.
>>> I know the general process, but I'm curious if anyone has done this
>>> specifically to an A4000 board and has any tips. As I said, I'm
>>> probably going to have to pull the DIMM socket to get to all the
>> I've never had much luck with this kind of repair, but the A4000 repair
>> always sounded particularly difficult and liable to fail. Still, if
>> you've got the right tools and are patient and careful, you won't be
>> worse off than if you didn't bother at all.
> I've repaired many...I usually take off all the components of the
> affected area, wash it with vinegar (!) to neutralize the electrolyte,
> wash again with alchool or MEK (Metil-Etil-Ketone, cancerous and very
> dangerous solvent) and rebuild the traces with very thin (awg 30)
> wire-wrap wire. It always works (for me) :)
> I've spent someday 6 hours to recover a board. In Brazil it is worth it!
What is the purpose of using MEK (Methyl-Ethyl-Ketone) on a pc board? I
would be worried it could potentially damage the rubber end seals of
electrolytics or any styrene or ABS plastic encapsulated components.
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