wrote in message
ups.com...
I have a Panasonic CT-32HX40B HDTV. Some time ago, the flyback
transformer died, and I replaced it. Since then, there is no picture
when I turn the TV on. I know it's tuning the channels correctly
because I can hear the channel's audio through the speakers. I
thought to check the horizontal output transistor and found that the
base and emitter are both shorted to ground. Does anyone know what
could cause this, or what components to check? Any information would
be a great help.
Thanks,
Adam Dorsey
Base-emitter junction would normally read shorted because of the drive
transformer. Even out-of-circuit most HOT's have a 47 ohm resistor
internally across the E-B junction.
Your problem is elsewhere - maybe a 200 volt line down. You can check the
voltages at the driver transistors on the crt board.
Mark Z.