Toshiba D-VR41KF Service Manual page 22

FLOW CHART NO.6
P-ON+44V is not outputted.
Is 44V voltage supplied to the emitter of Q1516?
Is the "L" pulse (approximately 0V) inputted to
the base of Q1516?
Replace Q1516.
FLOW CHART NO.7
P-ON+9V is not outputted. (P-ON+44V is outputted normally)
Is 12V voltage supplied to the collector of Q1515?
Is the "H" pulse (approximately 10V) inputted to
the base of Q1515?
Replace Q1515.
FLOW CHART NO.8
P-ON+5V (AL+5V, EV+5.5V) is not outputted. (P-ON+9V is outputted normally)
Is 5V voltage supplied to the collector of Q1518?
Is the "H" pulse inputted to the base of Q1518?
Replace Q1518.
FLOW CHART NO.9
TIMER+5V is not outputted.
Is 5V voltage supplied to the emitter of Q1513?
Is the "L" pulse outputted to the collector of Q1512?
Replace Q1513.
FLOW CHART NO.10
P-ON+2.5V is not outputted.
Is 4V voltage supplied to Pin(1) of IC1504?
Replace IC1504.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No Check D013, C013, and their periphery, and
service it if defective.
No
Is the "H" pulse (approximately 5V) inputted to
the base of Q1517?
Yes
Replace
Q1517.
Replace IC501.
No Check C014, D014, D017, L010, C015, and their
periphery, and service it if defective.
No
Check D1511, R1568, R1569, R1570, and their
periphery, and service it if defective.
No Check D016, D1032, L013, C017, C018, and their
periphery, and service it if defective.
No
Check R1523 and their periphery,
and service it if defective.
No
Check D016, D1032, L013, C017, C018 and their
periphery, and service it if defective.
No
Check Q1512, D1508 and their periphery, and
service it if defective.
No
Check D1008, C1007, and their periphery, and
service it if defective.
1-10-2
No
Is 5V voltage supplied to the
Pin(37,99) of IC501.
Yes No
Check AL+5V and
Timer+5V line, and
service it if defective.
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