From Brandon Rogers Sent Tue, Jan 29th 2019, 18:14
From Brandon Rogers Sent Tue, Jan 29th 2019, 18:14
In case it's not common knowledge... there's a guy in Germany named Andrej (Andrej SH on Facebook) who sells replacement boards for the polysix. A great option for those who want to dodge dealing with the acid damage and who may not want to go with a Kiwi board. Here's his website: http://synthronics.de/ -Brandon On 1/29/19, Kenny Balys <xxxxx@xxxxxxxx.xxx> wrote: > > I had that happen 10 years ago. Lots of the traces are already silver > rivers of solder, painstakingly put down. > > Did some heavy cleaning this time around. Hoping for the best. > > If the acid made it down into the fiber of the PCB then I guess > I will be putting in my order with Kiwi Technics in around 6 months. > > This whole thing is my own stupid fault. Why oh why did I put another > Varta back in this thing in 2009???? > > On 29.01.19 16:26 , RJ Krohn wrote: >> I restored a Polysix once with battery leakage. My experience may give >> some >> insight into yours. >> >> I did a full replacement with a lithium battery, and traced every pad >> trace on >> the pcb(klm367 or something?). the machine worked perfectly. 6 months >> later, it >> started manifesting faults that looked very CMOS-y: switches not working, >> intermittent logic functions, etc. after extensive tracing, what i found >> was >> that the battery acid(which is effectively invisible) residue on the pcb >> had >> continued to creep, even after the board had been repaired. new tracks in >> the >> pcb had failed that were working 6 months back. i had to shotgun-style >> bridge >> every trace that surrounded the battery location with stripped lengths of >> 24 >> gauge wire. it is dubious as to whether that synth is worth the work it >> required >> to repair, but hey, beauty/eye/beholder/etc. hope this helps.-R >> >> >