2 Jan
2015
2 Jan
'15
5:15 p.m.
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:
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.
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'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! 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
damage.
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.