Denon AVR-X3500H Service Manual

Check item(3-4.4.). Check the I2C communication line :
Check the CPU.
Is the "I2C" waveform of the TP near the CPU [U1018] correct (like
the one shown in the diagram) when the power is turned on?
U2022
AVSDA
AVSCL
Check item(3-4.5.). Check the I2C communication line :
Check GUI [U1026], HDMI SW [U1003] and CPU [U1018] patterns as well as soldering.
If there is no problem, go to the next step.
Check the CPU.
Remove the damping resistor [R1493/R1494]
of [U1018].
Is the "I2C" waveform correct?
The CPU [U1018] is faulty.
Replace with a new device.
Check the I2C communication line.
GUI [U1026] is faulty.
Replace with a new device.
GUI [U1026] is faulty.
Replace with a new device.
YES
*The diagram shows an example.
(Signal patterns vary depending on the tim-
ing.)
Points for checking waveforms
- Crest value (3.3V normally)
- Signal change
- SCL frequency (400kHz normally)
Voltage scale : 1.0V/div
Time scale : 10us/div
NO
YES
YES
NO
Recheck from check item (3.1.)
If it does not work, replace the PCB.
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
104

Denon AVR-X3500H Specifications

General

Receiver type	Surround
Pre-out channels	7.2
Pre-out connectivity	Yes
Audio output channels	7.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Power output per channel (1KHz@6 Ohm)	215 W
Power output per channel (20-20KHz@8 Ohm)	105 W
HDCP version	2.2
Apple docking	No
Product color	Black
Audio decoders	DTS-HD Master Audio, DTS:X, Dolby Atmos, Dolby Surround, Dolby TrueHD
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	Amazon Music, Deezer, Napster, Pandora, Spotify, Tidal, TuneIn, iHeartRadio
Bluetooth version	3.0+HS
Bluetooth profiles	A2DP, AVRCP
HDMI in	8
Composite video in	3
USB ports quantity	1
Component video (YPbPr/YCbCr) in	2
Speakers connectivity type	Binding post
Power consumption (standby)	0.1 W
Power consumption (typical)	600 W
Cables included	AC

Weight and Dimensions

Depth	390 mm
Width	434 mm
Height	167 mm
Weight	10800 g