Toshiba D-R560KU, Service Manual

Page: 18 / 72

1-8-2 E7M70TR
FLOW CHART NO.6
EV+10.5V is not outputted.
FLOW CHART NO.9
VIDEO+5V is not outputted. (AUDIO+10V is outputted normally.)
Is 5V voltage supplied to the collector of Q1057?
No
Yes
Replace P1(AV ASSEMBLY).
Check D1057, D1058, D1059, C1060 and their
periphery, and replace P1(AV ASSEMBLY)
if defective.
FLOW CHART NO.8
AUDIO+10V is not outputted.
Is 10.5V voltage supplied to the emitter of Q1054?
Is the "L" pulse outputted to the collector of Q1056?
Check Q1054 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
No
No
Yes
Yes
Yes
Is the "H" pulse outputted to Pin(53) of IC1501?
Check D1063, D1064, C1063, C1064, L1052 and
their periphery, and replace P1(AV ASSEMBLY)
if defective.
Replace P1(AV ASSEMBLY).
No
Replace P1(AV ASSEMBLY).
FLOW CHART NO.7
P-ON+5V is not outputted.
Is 5V voltage supplied to the emitter of Q1053?
Is the "L" pulse outputted to the collector of Q1056?
Check Q1053, D1060 and their periphery,
and replace P1(AV ASSEMBLY) if defective.
No
No
Yes
Yes
Yes
Is the "H" pulse outputted to Pin(53) of IC1501?
Check D1057, D1058, D1059, C1060, C1061,
L1051 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
Replace P1(AV ASSEMBLY).
No
Replace P1(AV ASSEMBLY).
Check D1063, D1064, C1063, C1064, L1052 and
their periphery, and replace P1(AV ASSEMBLY)
if defective.
EV+3.3V is not outputted.(EV+10.5V is outputted normally.)
FLOW CHART NO.10
Is 5V voltage supplied to the collector of Q1063?
No
Yes
Is the voltage of approximately 4V supplied to
the base of Q1063?
Check D1057, D1058, D1059, C1060, and their
periphery, and replace P1(AV ASSEMBLY)
if defective.
No
Check D1062 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
Replace P1(AV ASSEMBLY).
Yes