Repairing A4000 leaky NiCd damage?

On Fri, 2 Jan 2015, Ethan Dicks wrote: Has anyone here gone through the process of reparing leaky NiCd damage Went through this entire process on my A4000 a couple of years back. In my case there was damage to traces underneath several of the adjacent chips and the clock chip was dead to boot. I would suggest soaking the board overnight in dilute vinegar in addition to washing, since the alkaline crud gets into via holes where washing won't dislodge it. If traces are not already eaten, this may eliminate the need to remove the DIMM sockets. I ended up removing all the chips in the immdiate vicinity of the battery and piecing things back together with 30g wire. This did include threading through a few of the vias. One random bit of advice: The leaked crud tends to dissolve the solder mask on the circuit board and makes hot-air reflow a bit touch and go. The solder will migrate underneath the chip rather than flowing around the legs. After two unsuccesful rounds with the reflow tool (shorted traces underneath) I ended up hand-soldering the smaller parts. At the time I did this work, the Ricoh clock chip was still available from Amigakit in the UK. Unfortunately its function goes beyond simple timekeeping. It has some involvement in the power-up sequence and the system won't function with it. There may be a way to mod around this, but I simply replaced the chip. Steve --