Denon AVR-X3300W Service Manual

Check item(66). Checking the reset :
Check the CPU.
Is the waveform of the TP near the GUI (U1026) correct (like the one
shown in the diagram) when the power is turned on?
U1026
RESET
Check item(67). Check the I2C communication line :
Check the CPU.
Is the waveform of the TP near the GUI(U1026) correct (like the one
shown in the diagram) when the power is turned on?
U1026
A_CK
A_DA
Check item(68). Check the I2C communication line :
Check GUI (U1026), HDMI Decoder (U1055) and CPU(U1018) patterns as well as soldering.
If there is no problem, go to the next step.
Check the HDMI Decoder.
Remove the damping resistor (R2142) of
HDMI Decoder (U1055).
Is the "I2C" waveform correct?
The GUI (U1026) is faulty.
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 (U1026) is faulty.
Replace with a new device.
HDMI Decoder (U1055) 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 (U1018) and GUI (U1026).
If there is no problem, the GUI (U1026) 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.
109
Caution in
servicing
Electrical Mechanical Repair Information Updating

Denon AVR-X3300W Specifications

General

Receiver type	Surround
Frequency range	10 - 100000 Hz
Pre-out channels	7.2
Pre-out connectivity	Yes
Audio output channels	7.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.05 %
Power output per channel (1KHz@6 Ohm)	180 W
Power output per channel (20-20KHz@8 Ohm)	105 W
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.1 W
Power consumption (typical)	600 W
Product color	Black
Audio decoders	DTS-HD, DTS-HD Master Audio, Dolby TrueHD
Multi-Zone quantity	2
Apple docking compatibility	-
AM band range	522 - 1611 kHz
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
HDMI in	8
Audio (L/R) in	5
Remote control in	1
Composite video in	3
Composite video out	0
Connectivity technology	Wired
Speakers connectivity type	Clamp terminals
Audio formats supported	AAC, AIFF, ALAC, DSD, FLAC, MP3, WAV, WMA

Weight and Dimensions

Depth	389 mm
Width	434 mm
Height	167 mm
Weight	10800 g