Denon AVR-1912 Service Manual

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Checking the USB device
YES
Is the USB device compatible with the set?
Are you using a USB hub?
Only mass storage devices in FAT16 or
FAT32 format or MTPcompatible devices
and iPod (Remove some models) are
supported.
Don't use the USB hub.
NO
YES
NO
Checking the set (AVR-1912/2112CI)
YES
YES
Is a voltage (5V) supplied between the pins 1 and 4 of
JACK102(AVR1912E3)/JACK101(except AVR1912E3) on the USB
board (USB connector)?
The circuitry from IC17 on the HDMI board to JACK102(AVR1912E3)/
JACK101(except the AVR1912E3) on the USB board is defective.
Is the wire properly connected between CP1 on the HDMI board and
CN104(AVR1912E3)/CN102(except the AVR1912E3) on the USB
board.
The Q24 and surrounding circuitry on the
HDMI board are defective.
Connect the wire properly.
NO
NO
5.2. USB device is not recognized
The circuit between IC17 and IC15 is
defective.
Checking the set (AVR-1912/2112CI):(If no picture is output)
Check the analog video circuit.
Are video signals output from IC15 pin 27 (Y) and pin 24 (C)?
NO
Checking the set (AVR-1912/2112CI):(If no sound is output)
YES
YES
Check the Digital audio circuit.
Are S/PDIF signals output to IC21 pin 10?
IC17 and surrounding circuitry is defective.
NO
5.3. No picture or no sound is output

Denon AVR-1912 Specifications

General

Impedance	47 Ω
Receiver type	Surround
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Audio output channels	7.1 channels
Audio A/D Converter (ADC)	24-bit/96kHz
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.08 %
Power output per channel (1KHz@6 Ohm)	125 W
Power output per channel (20-20KHz@8 Ohm)	90 W
HDMI in	6
Composite video in	3
Component video (YPbPr/YCbCr) in	1
Headphone connectivity	6.3 mm
Connectivity technology	Wired
Speakers connectivity type	Banana connector/Binding posts
Audio formats supported	AAC, FLAC, MP3, WAV, WMA
Image formats supported	JPG
Wi-Fi	No
Ethernet LAN	Yes
AM band range	520 - 1710 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM
Preset stations quantity	56
Supported video modes	1080i, 1080p, 480i, 480p, 576i, 576p, 720p
Analog signal format system	NTSC, PAL
Display	-
Product color	Black
Audio decoders	Dolby Digital EX, Dolby Digital Plus, Dolby Pro Logic II, Dolby Pro Logic IIx, Dolby Pro Logic IIz, Dolby TrueHD, DTS 96/24, DTS Neo:6, DTS-ES, DTS-ES (Discrete 6.1), DTS-ES (Matrix 6.1), DTS-HD
Apple docking compatibility	iPhone, iPod
AC input voltage	120 V
AC input frequency	60 Hz
Power consumption (standby)	0.1 W
Power consumption (typical)	460 W

Weight and Dimensions

Depth	382 mm
Width	435 mm
Height	167 mm
Weight	10200 g