Denon DVD-3800BDCI Service Manual page 28

QQ
3 7 63 1515 0
FLOW CHART NO.11
P-ON+15V is not outputted.
Is 14V voltage inputted to the emitter of Q2609?
Is the voltage of base on Q2609 lower than the
voltage of emitter on Q2609 when turning the power on?
Replace Q2609.
FLOW CHART NO.12
P-ON-12V is not outputted.
Is -12V voltage inputted to the emitter of Q2600?
ls "L" signal outputted to the collector of Q2601?
Is 5V voltage inputted to the emitter of Q2602?
Is 5V voltage outputted to the collector of Q2602?
Check Q2600 and their periphery, and service
it if defective.
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L 13942296513
FLOW CHART NO.13
EV+3.3V(2) is not outputted.
(AL+5V is output normally.)
Is 3.3V voltage inputted to the emitter of Q2613?
Is 2.6V voltage inputted to the base of Q2613?
Replace Q2613.
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Yes
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DVD-3800BDCI
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No
Check D1121, D1127, C1123, L1104 and their
periphery, and service it if defective.
No
Check Q2604 and PWSW3 line and service it if
defective.
No
Check D1124, D1125, C1121, L1102
and their periphery, and service it if defective.
No
ls "H" signal inputted to the base of Q2601?
Yes
Replace Q2601.
No
Check D1112, D1113, D1114, D1129, C1132, C1125
and their periphery, and service it if defective.
No
Replace Q2602.
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No
Check D1145, R1128, R1129, R1130 and
their periphery, and service it if defective.
No
Check Q2612 and A33-PW-CONT line,
and service it if defective.
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No
Check PWSW3 line and
service it if defective.
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