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Denon AVR-1908 Service Manual

Denon AVR-1908
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AVR-1908 / AVR-788
2.4. VCR MONITOR OUT(S) Output NG
Unless specified, VIDEO UNIT part.
VCR/DVR MONITOR OUT(S) Output NG.
When checking operation, select
DVD for the function.
Input
CVBS
Input
S
Input
COMPONENT
No output VCR : F No output
F
Input
S
Check ± 5V.
+5V : CP706 / 2pin
-5V : CP706 / 3pin
NG
To troubleshooting 1.1 Power not turn
on.
OK
Check input/output of video SW.
Input Y : IC2011 / 12pin
Input C : IC2012 / 12pin
Output Y : IC2011 / 1pin
Output C : IC2012 / 1pin
NG
Check video SW settings.
IC2011 - 8pin: L
IC2011 - 9pin: H
IC2012 - 8pin: L
IC2012 - 9pin: H
NG
Check soldering of IC2003.
OK
OK
Check soldering of
IC2002
.
Check a cable between the main unit -
monitor or the monitor.
2.4. VCRMONITOROUT(S) 出力 NG
特に記載がない場合は VIDEO基板の部品です。
VCR/DVRMONITOROUT(S) 出力 NG 動作を確認する時はファンクショ
ンを DVD に選択してください。

CVBS
入力
S

COMPONENT
出力されません VCR:F 出力されません
F
入力(S)
±5Vの
+5V:CP706/2pin
-5V:CP706/3pin
NG
1.1 電源が入らないのトラブルシューティングへ
OK
ビデオSW の入出力確認
入力 Y:IC2011/12pin
入力 C:IC2012/12pin
出力 Y:IC2011/1pin
出力 C:IC2012/1pin
NG
ビデオSW の設定確認
IC2011-8pin:L
IC2011-9pin:H
IC2012-8pin:L
IC2012-9pin:H
NG
IC2003 のハンダ付け確認
OK
OK
IC2002 のハンダ付け確
本体 - モニター間のケーブル
もしくは、モニターの確認

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Denon AVR-1908 Specifications

General IconGeneral
Channels7.1
Power Output90W per channel (8 ohms, 20Hz-20kHz, 0.08% THD)
HDMI Inputs2
HDMI Outputs1
Dolby DigitalYes
DTSYes
TypeAV Receiver
Component Video Inputs3
Component Video Outputs1
Digital Audio Inputs2 Optical, 2 Coaxial
TunerAM/FM
Frequency Response10Hz-100kHz (+1, -3dB)
Input Sensitivity/Impedance200mV/47k ohms
Signal-to-Noise Ratio98 dB
Power Consumption460W
Surround Sound FormatsDolby Digital, DTS
Total Harmonic Distortion0.08%
Tuner Frequency RangeAM: 522-1611 kHz, FM: 87.5-108.0 MHz
Standby Power ConsumptionLess than 1W

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