Service manual

28
51GT-25S
NO FUNCTION(NO SOUND AND NO PICTURE)
Yes, red
Not light
Approx. 0 V
Approx. 8 V
Check R204, Q209
and Q500.
Approx. 0 V
Approx. 3.3 V
Approx. 0 V
Check R737, D755,
Q709 and IC1001.
Check IC201, IC1001,
IC1002
Normal
Broken
Check Q701,
D718, C718
and
Q601
Normal
Broken
Check D708,
C711
and IC701
Check Q601,
D708
and C711
Check F701,
R703 and
Q701
Is D1011
(LED) on a
light?
Check D724
Check Q711
emitter
voltage
Check C206
Voltage
Check Q709
emitter
Voltage
Check R737,
D713,Q704,
IC1001 and
IC1003.
TROUBLESHOOTING TABLES.