Denon AVR-X6400H Service Manual

Check the power supply voltage. (HDMI SW2)
Check item(14). Check the power supply voltage. :
Does the power supply voltage of the HDMI SW2 [U2601] indicate the correct voltage (1.1V)?
The test points are as follows.
HDMI SW2
U2601
112 pin
Check item(15). Check the power supply voltage. :
Check the power components [U3605/U3601] and the pattern on
the substrate.
If there is no problem, remove the HDMI SW2 [U2601] from the sub-
strate and measure the voltage at the test point of check item (14).
Is the voltage correct (1.1V or 3.3V)?
Replace with a new device.
The power supply circuit is
faulty.
Replace the PCB.
Recheck from check item (1).
If it does not work, replace the PCB.
Checking device. [U2601 : MN864788]
3-3. Error Code H1-03 failure detection procedure
NOYES
NOYES
Checking the reset waveform. (HDMI SW2)
Check item(16). Checking the reset waveform :
Check the waveform.
Is the TP waveform of the TP near the HDMI SW2 [U2601] correct
(like the one shown in the diagram) when the power is turned
on?
HDMI SW2
U2601
RESET
Check the reset circuit between
CPU [U6201] and HDMI SW2
[U2601].
If there is no problem, the HDMI
SW2 [U2601] is faulty.
Replace with a new device.
Recheck from check item (16).
If it does not work, replace the
PCB.
NO
Examples of conrmation waveform
Voltage scale : 1.0V/div
Time scale : 20ms/div
check item (1) again after replacing [R2630/R2631] with a new
resistor.
If there is still a problem, the HDMI SW2 [U2601] is faulty.
Replace with a new device.
Recheck from check item (1).
If it does not work, replace the PCB.
YES
104
Caution in
servicing
Electrical Mechanical Repair Information Updating

Denon AVR-X6400H Specifications

General

Receiver type	Surround
Frequency range	10 - 100000 Hz
Pre-out channels	11.2
Input sensitivity	200 mV
Pre-out connectivity	Yes
Audio output channels	11.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Power output per channel (1KHz@6 Ohm)	205 W
Power output per channel (20-20KHz@8 Ohm)	140 W
Display	-
HDCP version	2.2
Apple docking	No
Product color	Silver
Audio decoders	DTS:X, Dolby Atmos
Audio formats supported	ALAC, DSD, FLAC, WAV
RS-232 ports	1
Connectivity technology	Wireless
AM band range	522 - 1611 kHz
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Internet radio services supported	Deezer, Napster, Spotify, Tidal, TuneIn
HDMI in	8
Composite video in	4
Component video (YPbPr/YCbCr) in	2
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	750 W
Number of HDMI outputs	3

Weight and Dimensions

Depth	393 mm
Width	434 mm
Height	167 mm
Weight	14500 g