Hello,
I've got a Sony KV32TW77 and the set just died one night (no picture no audio). I've done some searching and I can say this much after taking the board module out.
1. Tested I/P voltage up to fuse = 120VAC
2. Tested I/P voltage for RY602 which should be 12VDC but found zero volts.
3. Lifted RY602 from board and supplied 12VDC and relay made contact, so it works.
So I'm not getting the 12VDC req. to RY602 to get the req. 170VDC B+
Hummm...I'll keep looking....need some schematics and/or service manual or any trible knowledge to help me.
TIA,
Roy
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