Toshiba TP43H60 Service Training page 14

Continued from the
Caution:
previous page.
Before removing or adding fuses,
remove all power from the
television and always use an Isolation
transformer when troubleshooting.
With fuse F470 still open,
check the voltage on the power
supply side of F470 when the
television is first turned on.
Does the
voltage at F470 rise
to >100V then drop, or does
Voltage never appears.
Voltage appears then drops.
the voltage never
appear?
Using the
Check Q862, C870, R865,
live ground, check
Voltage is present.
R870, C866, and C869.
for 165V on pin 1
No voltage.
of Q801.
Check F860,C810,
D801 and R810.
Is pin 14
Yes or 15 of Q801 shorted No
to pin 12?
Change IC801
Check D876, R861, C869,
D873, D862 and D875.
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