I came across this post when looking for some info after my Polysix suddenly failed to power up after I accidently replaced an IC the wrong way round...Oops. Thankfully it only blew the 2 fuses on the Kiwisix Power Supply board, but it also took out the RIFA Spark Killer on the KLM-425, and when fault finding afterwards I measured a 98v leak across the Spark Killer even when the switch was turned OFF.
Having read this post I removed the Spark Killer which solved the problem, and after replacing the 2 fuses on the Kiwisix PSU, the Polysix is back working fine again. So thank you Tony. :)
In the post above, Tony says not to bother replacing the Spark Killer, so I have left it removed, however I would like to understand why it is ok to leave it removed. After reading further about spark killers (aka suppression capacitors) I see one of their uses is to reduce loud pops on the studio monitors which can occur if you forget to turn them off first. (Hint: Always turn monitor Amp off before anything else.) Spark Killers also reduce the overall wear on the switch over time, but other than that, I cant find any reason to have the Spark Killer on the KLM-425, so just wanted to find out a little more on this. So any replies would be appreciated, and perhaps I could ask Tony to elaborate a little more on this. Thanks very much.
Tim