JVC AV-32FA44: Goes dead, just as you get a perfect picture. Talked to
JVC Tech, he said it's the over voltage feedback loop, but I can't find
anything bad after doing the following repair.
If I bypass the standby relay, the unit works fine but of course, no
front panel function. Ideas?


D 432 SHORTED,Q431 OPEN,C973 BLOWN APART,THESE ARE PART OF OCP SHUTDOWN
CIRCUIT,HAD 4.04 VOLTS ON OCP LINE, SHOULD BE LOW,PUMP UP OUT OF
VERTICAL IC PIN 7 SHOULD KEEP Q431 TURNED ON

Sony KV-32S40 dead, with MX0841B reg IC, 0.1 ohm fusible, 2SC5148
horizontal output bad, I didn't have a VDR 602, & it measured ok...open
circuit. Put it on the variac, slowly
ramping up the voltage, perfect pix, & sound....few seconds
later...gently blew all parts.
They idn't even get hot. Flyback bad? Didn't get time to scope the
horizontal waveform.
Did I miss something?

JVC AV-32720 shorted D 531, replace, blows right away. Can't get to
measure anything.
Ideas?