Quote:
Originally Posted by Electronic M
Another thing to try is looking up the Sam's number ####-# on eBay and the like to see if you can find an original paper copy for $5.
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Thanks for the heads up. Grabbed a SAMS for $10. Had the RCA CTC-140B and a Panasonic bundled together. I don't plan on servicing a lot of TVs, I just want to get this one working.

I'd rather have a legit service manual than paying someone $35 so they can continue to gatekeep public domain stuff behind a paywall.
I'll scan and upload if anyone is interested.
Looks like it's 130V input voltage max. Not sure why I was fretting over this, I could've just bought a few 1000V diodes and be done with it.
Anyway, got the service manual. Ordered one of those diode kits with like 250 different kinds and ratings. Cheaper than buying off Digikey right now when you include shipping and potential tariffs. The symptoms for my TV are what you'd expect if that SIP board was misbehaving, so crossing my fingers that replacing the diodes will be a quick fix.
Fallback is that I'll have the schematic. I
think there's enough room in the cabinet for me to flip the chassis upside down and have it all hooked up so I can further diagnose it if needs be.