Toshiba RD-87DTKF, Service Manual

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1-9-3 E2J70TR
Yes
No
No
FLOW CHART NO.15
TUNER+12V is not outputted.
(+32V is outputted normally.)
EV+3.3V is not outputted.
(SYS+5V is outputted normally.)
Is 14V voltage supplied to the collector of Q1573?
Is 13V voltage supplied to the base of Q1573?
Yes
Replace Q1573.
Check D2204, D2205, D2212, C2204
and their periphery, and service it if defective.
Check Q1571, Q1572 and their periphery,
and service it if defective.
No
Yes
Check D1181, D1185, D2209, C2217
and their periphery, and service it if defective.
FLOW CHART NO.14
P-ON+3.3V is not outputted.
Is 5V voltage supplied to Pin(1) of IC1152?
Replace IC1152.
No
Is 2.8V voltage supplied to Pin(1) of IC1151?
FLOW CHART NO.13
P-ON+1.8V is not outputted.
Replace IC1151.
Check D2203, D2232, D2233, C2203, C2239
and their periphery, and service it if defective.
Yes
No
Is 12V voltage supplied to Pin(3) of IC1025?
FLOW CHART NO.11
SYS+5V is not outputted.
Replace IC1025.
Check D2204, D2205, D2212, C2204
and their periphery, and service it if defective.
Yes
FLOW CHART NO.12
Is the voltage of approximately 4V supplied to
the base of Q1159?
No
Check IC1153 and their periphery, and service it if
defective.
Replace Q1159.
Yes
No
FLOW CHART NO.16
AL+5V(2) is not outputted.
(AL+9V is outputted normally.)
Is 6V voltage supplied to the base of Q1508?
Yes
Replace Q1508.
Check D1508, C1526
and their periphery, and service it if defective.