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I recall in 35" JVCs that there is a B+ line that gets cold solder joints causing the vertical to collapse. This is a bit tricky to explain to anyone who isn't into TV repair, but basically you need to go over the whole circuit board on those sets to resolder many bad connections. In particular, the vertical IC, the B+ resistors, the scan diodes, and any that you see with a bad connection. But don't try this if you aren't comfortable and experienced with fine PC solder work. Better left to a tech.
One more point on that set: There is a fire hazard with the degaussing thermistor also having bad connections. That is a 1/2" cube shaped part with 3 pins that is near where the AC line cord plugs into the board, and also where a white 2-wire plug is, which has 2 wires going up to the degaussing coils around the outer rim of the picture tube. The 3 pins that are soldered underneath the board are most likely black and cracked! That is a MUST to be resoldered!
Charles
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