Brian;
Thanks so much for clarifying which part number of boards are affected. I pulled out my little TM-8 a couple weeks back after many months of sitting, and I was dismayed to discover that there was only a little bit of output on one of the mains. This thread really helped me get to the bottom of the problem & order some parts for repair.
I just wanted to ask a few additional questions, if you might happen to know the answers:
1) The 4 AUX outputs all have just 1x 47uF 63v electrolytic on them, but the MAIN L & R seems to have 2. Do you know the reason for this? I guess both of those caps should be reversed?? (both of them were failing on each channel)
2) Is this stencil / PCB labeling problem just isolated to the MAIN & AUX outputs? For example, is the large bank of electrolytic caps for the INPUT channels labeled correctly, should they ever fail / need to be changed?
3) Due to the worldwide shortage of electronic components, I was forced to use similar, but not identical models of capacitors, is this likely to be a problem? Eg - my board has Nichicon VZ series from the factory, but the only replacement I could find in stock (only 17 available!!) was Nichicon KW series. They are both considered "audio grade", and the same capacitance / voltage / temperature according to Mouser specs, so it's unclear to me what the difference might be.
Thanks so much for the great info in this thread
Roy