Denon DVD-1920 Service Manual

19
DVD-1920/756
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.
Replace Q1014.
Check R1068 and D1046, and service it if defective.
Ye s
No
Is the "H" signal inputted into the base of Q1014?
Check D1047, R1069, R1098 and the periphery
circuit, and service it if defective.
No
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.
Check D1008, C1007, C1038, L1007, and the
periphery circuit, and service it if defective.
Ye s
No
FLOW CHART NO.9
EV+5V is not outputted.
Is EV+10V outputted normally?
Refer to "FLOW CHART NO.6"
<P-ON+10V (EV+10V) is not outputted.>
Ye s
Ye s
No
FLOW CHART NO.10
EV+1.2V is not outputted.
Is 2.5V voltage supplied to Pin(3) of IC1002?
Replace IC1002.
Check D1006, C1014, L1008 and the periphery circuit,
and service it if defective.
Ye s
No
FLOW CHART NO.6
P-ON+10V (EV+10V) is not outputted.
Is 10V 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.
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.
Ye s
Ye s
No
No
FLOW CHART NO.11
EV+3.3V is not outputted.
Is 3.3V voltage supplied to the collector of Q1020?
Check D1008, C1007, C1038, L1007 and the
periphery circuit, and service it if defective.
Ye s
No
Is the "H" signal inputted into the base of Q1020 ?
Ye s
Replace Q1020.
Check R1050 and the periphery circuit,
and service it if defective.
No
Is EV+10V outputted normally?
Ye s
Refer to "FLOW CHART NO.6"
<P-ON+10V (EV+10V) is not outputted.>
No
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TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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Denon DVD-1920 Specifications

Audio Outputs

analog output	1 set (L/R)
multi channel output	1 set (Front L/R, Center, Surround L/R, Subwoofer)
optical digital output	1
coaxial digital output	1
HDMI output	1

CD Audio Specifications

frequency response	4 Hz - 20 kHz
signal-to-noise ratio	115 dB
dynamic range	98 dB
total harmonic distortion	0.004%

Video Outputs

composite video output	1.0 Vp-p (with 75 ohms load)
S-Video output Y	1.0 Vp-p (with 75 ohms load)
S-Video output C	0.286 Vp-p
component video output Y	1.0 Vp-p (with 75 ohms load)
component video output Pb/Cb	0.648 Vp-p (with 75 ohms load)
component video output Pr/Cr	0.648 Vp-p (with 75 ohms load)
HDMI output version	1.1

General Specifications

power supply	AC 120 V, 60 Hz
power consumption	20 W
standby power consumption	1 W
dimensions (W x H x D)	435 x 75 x 310 mm
dimensions (W x H x D) inches	17-3/32 x 2-61/64 x 12-13/32 inches
weight	2.6 kg
weight in pounds	5.72 lbs