Denon DVD-758 Service Manual page 19

FLOW CHART NO.6
P-ON+10V (EV+10V) is not outputted.
Is 11V voltage supplied to the emitter of Q1002?
Is the voltage of base on Q1002 lower than the
voltage of emitter on Q1002 when turning the power on?
Replace Q1002.
FLOW CHART NO.7
P-ON+5V is not outputted. (EV+10V is outputted normally.)
Is the "H" signal inputted into the base of Q1004?
Replace Q1004.
FLOW CHART NO.8
P-ON+3.3V is not outputted. (P-ON+10V is outputted normally.)
Is 3.3V voltage supplied to the collector of Q1011?
Replace Q1011 or R1067.
FLOW CHART NO.9
EV+5V is not outputted.
Is 6V voltage supplied to the collector of Q1014?
Is the "H" signal inputted into the base of Q1014?
Replace Q1014.
FLOW CHART NO.10
EV+1.2V is not outputted.
Is 2.5V voltage supplied to the emitter of Q1022?
Is 2.5V voltage supplied to Pin(3) of IC1002?
Replace IC1002.
FLOW CHART NO.11
EV+3.3V (MICON+3.3V) is not outputted.
Is 3.3V voltage supplied to the collector of Q1020?
Is the voltage of base on Q1020 lower than the
voltage of emitter on Q1020 when turning the power on?
Replace Q1020.
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
No
Yes
No
Yes
Check D1030, D1048, C1035, C1048, L1009 and
the periphery circuit, and service it if defective.
Check Q1016 and PWRCON line and service it if
defective.
Check R1068 and D1046 and service it if defective.
Check D1008, C1007, C1038, L1007 and the
periphery circuit, and service it if defective.
Check D1010, C1010, C1011, L1006 and the
periphery circuit, and service it if defective.
Check D1047, R1069, R1098 and the periphery
circuit, and service it if defective.
Check D1006, D1074, C1014 and the periphery
circuit, and service it if defective.
No
Check Q1012, Q1022 and PW-SW line, and
the periphery circuit, and service it if defective.
Check D1008, C1007, C1038, L1007 and
the periphery circuit, and service it if defective.
Check Q1012 and PW-SW line, and service it if
defective.
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DVD-1940CI/758