Troubleshooting Tables - Sharp 37GT-25S Service Manual

37GT-25S
Broken
Check Q701,
D718, C718
and
Q601
Broken
Check D708,
C711
and IC701

TROUBLESHOOTING TABLES.

NO FUNCTION(NO SOUND AND NO PICTURE)
Not light
Check F701,
R703 and
Q701
Normal
Check D724
Normal
Check Q601,
D708
and C711
Is D1011
(LED) on a
light?
Yes, red
Check Q711
emitter
voltage
Approx. 3.3 V
Check C206
Voltage
Approx. 8 V
Check Q709
emitter
Voltage
Check IC201, IC1001,
IC1002
28
Approx. 0 V
Check R737,
D713,Q704,
IC1001 and
IC1003.
Approx. 0 V
Check R204, Q209
and Q500.
Approx. 0 V
Check R737, D755,
Q709 and IC1001.