Denon AVR-X4300H Service Manual

Check item(74). Checking the reset :
Check the CPU.
Is the waveform of the TP"TP113"near the GUI(IC401) correct (like
the one shown in the diagram) when the power is turned on?
IC401
TP113
Check item(75). Check the I2C communication line :
Check the CPU.
Is the waveform of the TP"TP110/111"near the GUI(IC401) correct
(like the one shown in the diagram) when the power is turned on?
IC401
TP111
TP110
Check item(76). Check the I2C communication line :
Check GUI (IC401), HDMI Decoder (IC351) and CPU(IC151) patterns as well as soldering.
If there is no problem, go to the next step.
Check the HDMI Decoder.
Remove the damping resistor (R3532/R353)
of HDMI Decoder (IC351).
Is the "I2C" waveform correct?
The GUI (IC401) is failure.
Replace with a new device.
Checking the reset waveform.
Check the I2C communication line.
10ms
10ms 10ms
Example of the waveform to be checked
The GUI (IC401) is failure.
Replace with a new device.
HDMI Decoder (IC351) is faulty.
Replace with a new device.
YES
Recheck from check item (1).
If it does not work, replace the PCB.
Check the reset circuit between CPU (IC151) and GUI (IC401).
If there is no problem, the GUI (IC401) is faulty.
Replace with a new device.
NOYES
*The diagram shows an example.
(Signal patterns vary depending on
the timing.)
Points for checking waveforms
- Crest value (3.3 V normally)
- Signal change
- SCL frequency (400 kHz normally )
NO
YES
YES
NO
Recheck from check item (1).
If it does not work, replace the PCB.
123
Caution in
servicing
Electrical Mechanical Repair Information Updating

Denon AVR-X4300H Specifications

General

Display	-
Product color	Black
Audio decoders	DTS Neo:X, DTS-HD Master Audio, Dolby Pro Logic IIz, Dolby Surround, Dolby TrueHD
Audio amplifier	Yes
Connector contacts plating	Gold
Apple docking compatibility	Not supported
Receiver type	Surround
Audio output channels	11.2 channels
Power output per channel (1KHz@6 Ohm)	235 W
Power output per channel (20-20KHz@8 Ohm)	125 W
Audio formats supported	AAC, ALAC, DSD, FLAC, MP3, WAV, WMA
AM band range	520 - 1710 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM
Internet radio services supported	Napster, Pandora, SIRIUS Internet Radio, Spotify, TuneIn
HDMI in	8
Remote (IR) input	1
Composite video in	4
Digital audio coaxial in	2
Headphone connectivity	3.5 mm
Number of HDMI outputs	3
Multichannel audio output type	RCA
Supported video modes	1080p, 2160p
Connectivity technology	Wired & Wireless
Speakers connectivity type	3.5mm
Power consumption (standby)	0.1 W
Power consumption (typical)	710 W
Card reader integrated	No

Weight and Dimensions

Depth	339 mm
Width	434 mm
Height	236 mm
Weight	13500 g