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Denon AVR-X3300W Service Manual

Denon AVR-X3300W
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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

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Denon AVR-X3300W Specifications

General IconGeneral
Receiver typeSurround
Frequency range10 - 100000 Hz
Pre-out channels7.2
Pre-out connectivityYes
Audio output channels7.2 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 voltage230 V
AC input frequency50 Hz
Power consumption (standby)0.1 W
Power consumption (typical)600 W
Product colorBlack
Audio decodersDTS-HD, DTS-HD Master Audio, Dolby TrueHD
Multi-Zone quantity2
Apple docking compatibility-
AM band range522 - 1611 kHz
FM band range87.5 - 108 MHz
Supported radio bandsAM, FM
HDMI in8
Audio (L/R) in5
Remote control in1
Composite video in3
Composite video out0
Connectivity technologyWired
Speakers connectivity typeClamp terminals
Audio formats supportedAAC, AIFF, ALAC, DSD, FLAC, MP3, WAV, WMA
Weight and Dimensions IconWeight and Dimensions
Depth389 mm
Width434 mm
Height167 mm
Weight10800 g

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