i'm fixing my Krell KSA-300s and wanted to know what upgrades or other changes i should do while i have the Amp apart? The Krell chip is v1.3 for example. i'm fixing the faceplate board which arced and burned the relays, caps and resistors. for example changing the Memcor 1200ohm 20w resistors...
I assume you have tracked down what caused the fault and can correct that. Besides that, I would suggest considering replacing the power supply capacitors, if they are the original units.
Yes I believe I know the problem and that's why I'm considering replacing the affected components on that board and changing out the caps. I was looking at the power supply capacitors which very large and very hard to get. it is 1 Year wait on traditional vendors. but I would like to replace those. I thought since it was apart I wasn't sure if there's any upgrades to the main chip for example.
I'm keen to watch this thread. It seems like there are several revisions of hardware, but only 1 revision of schematic floating around. I'm looking for the REV G faceplate schematic, and also wondering what changed in the Rev H and beyond. If you have your amp apart, could you attach a photo of your Faceplate Board here?