Working on this same Sony #KV32TS35. Both switching regulators Q601 and
Q602 shorted, along with the Hot and fuse. Replaced Hot, and subbed
Q601/602 with NTE2582's. Set powered up for 5 seconds, dead again. New
NTE's shorted and fuse blown. Hot OK.
Does anyone know if these (Q601/602) transistors must be
replaced with Sony parts? I haven't found any other faulty components
in the primary. My next step is replace the transistors, pull the Hot,
and use a variable transformer to slowly increase supply voltage while
taking measurements. I am still a beginner and would like to know if
this is a solid approach to my problem. Quick history - I blew these
transistors trying to check pins of jungle ic for vertical/horizontal
waveforms. Accidently touched 2 pins at once. Was troubleshooting loss
of vertical. Thanks again group.