The capacitors in my Plus, when inspected by the TV tech, looked like they were brand new (he showed me what he was going to replace before he completed the task). He looked for leaks, cracks, etc., but nothing like that had occurred. The J1 connector was loose, so after replacing the caps, he tightened it. Honestly, this computer has been behaving like it just got off the assembly line. I keep it running for 30 minutes three days a week just to exercise the analog board. It would be foolish to keep it off indefinitely, then expect it to suddenly work (we're talking about a fragile Plus here, not a workforce SE, which I own as well).

The documentation on Google is a hit, and miss at times. Guys like Bunsen, tomlee, Osgeld, etc. are pretty resourceful, and have been maintaining vintage Macs a lot longer than I have (I only started 5 years ago). Talk to them. See if you can ship the 128k to them to have it fixed. Otherwise, when you are in Ontario, send me a PM, and I will introduce you to my TV tech.