Toshiba 65HM167 - 65" Rear Projection TV Service Manual page 22

Dead Set Troubleshooting
It has been determined that the set is
"Dead". All preliminary questions
have been answered. It is time to take
some voltage checks.
Remove the set from the wall outlet
for 10-15 seconds and plug back in.
Do not attempt to turn it on at this
time.
No
5V On PB80
Pins 6 & 7?
Power Supply
Push Power
Button.
3V On PB80
Pin 2?
Yes
2.6V on PB80
Pin 3?
Power Supply
21
Yes
No
Yes Main Module
No
Main Module