Denon AVR-X6400H Service Manual

Check item(95). Does a video signal come from HDMI OUT to TV correctly? :
Turn Video Conversion "ON" on the setup menu.
(SETUP MENU-> Video-> Output Settings-> Video Conversion = On)
When the "SETUP" button on a remote control is pressed, is "MENU" displayed on TV which is connect-
ed to the HDMI output terminal on the AVR?
HDMI OUT
NO
YES
Go to check item (96)
Go to check item (99)
3-18. GUI and PLD failure detection procedure
When the results of check item (95) are "NO"
(When the menu display is not OK)
Check item(96). Check the format of the resistor video signal :
Send the following command from Termite.exe.
Send the command "i 0020 0070 0001".
Is the return value "22/21/20/1F/15/14/13/11/10/06/05/04/02" ?
Check the Video signal line. (GUI -> HDMI Tx)
Example
i 0020 0070 0001
22
NO
Check item(97). Check the PLD video signal line from the GUI :
Check the video signal waveform at the following test point.
Is the waveform like the sample?
U2800
TP
Check item(98). Check the HDMI Tx video signal line from the PLD :
Check the video signal waveform at the following test point.
Is the waveform like the sample?
U3401
61 pin
NO
HDMI Tx [U3401] is faulty.
Replace with a new device.
Check the peripheral pattern between the GUI [U2800] and PLD [U3200].
If there is no problem, the GUI [U2800] is faulty.
Replace with a new device.
Check the peripheral pattern between the PLD
[U3200] and HDMI Tx [U3401].
If there is no problem, the PLD [U3200] is faulty.
Replace with a new device.
Check the Video signal line. (GUI -> PLD)
Check the Video signal line. (PLD -> HDMI Tx)
HDMI Tx [U3401] is faulty.
Replace with a new device.
Recheck from check item (5).
If it does not work, replace the PCB.
Recheck from check item (5).
If it does not work, replace the PCB.
NO
YES
YES
Recheck from check item (5).
If it does not work, replace the PCB.
3.3V
Example of waveform in check ①
Voltage scale : 1.0V/div
Time scale : 1ms/div
3.3V
Example of waveform in check ②
Voltage scale : 1.0V/div
Time scale : 50ns/div
3.3V
Example of waveform in check ①
Voltage scale : 1.0V/div
Time scale : 1ms/div
3.3V
Example of waveform in check ②
Voltage scale : 1.0V/div
Time scale : 1us/div
138
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