Denon AVR-X2400H Service Manual

TMDS Signal
3.3V
TMDS
Example of waveform in check ① Example of waveform in check ②
Voltage scale：1.0V/div Voltage scale：1.0V/div
Time scale：20ms/div Time scale：1s/div
When the results of check item (41) are "22"
(Detection of DDC is OK.)
Check item(44). Checking register of the TMDS CLK detection status
register :
Send the following command from Termite.exe.
HDMI Rx1 (When checking HDMI inputs 1, 2, and 3)
Send the command "i 002E 00FF 0001".
Rx2 (When checking HDMI inputs 4, 5, 6, and 7)
Send the command "i 0056 00FF 0001".
When the following value is returned, go to Yes.
HDMI In1 "44" HDMI In2 "22" HDMI In3 "11" HDMI In4 "88" HDMI In5
"44" HDMI In6 "22"HDMI In7 "11"
When the following value is returned, go to No.
HDMI In1 "40" HDMI In2 "20" HDMI In3 "10" HDMI In4 "80" HDMI In5
"40" HDMI In6 "20" HDMI In7 "10"
Check item(45). Checking the audio signal output :
Check the audio signal waveform at the following test point.
Is the waveform like the sample?
HDMI Rx1 [U1000]
(When checking HDMI inputs
1, 2, and 3)
HDMI Rx2 [U1003]
(When checking HDMI inputs
4, 5, 6, and 7)
129/131/132/133/134/135/136 pin
U1000 U1003
Check item (46). Checking the TMDS input waveform. :
Check the TMDS waveform at the following test point.
Is the waveform like the sample?
HDMI Rx1 [U1000]
(When checking HDMI inputs 1, 2, and
3)
HDMI Rx2 [U1003]
(When checking HDMI inputs 4, 5, 6,
and 7)
HDMI In3/7
93/94/96/97/99/100/102/103 pin
HDMI In2/6
80/81/83/84/86/87/89/90 pin
HDMI In1/5
55/56/58/59/61/62/64/65 pin
HDMI In4
42/43/45/46/48/49/51/52 pin
U1000 U1003
Checking the TMDS status register
Example
i 002E 00FF 0001
Check for a short circuit in the pattern of the
TMDS line of the HDMI Rx [U1000 or U1003] from
the HDMI input terminal.
If there is no problem, the HDMI Rx [U1000 or
U1003] is faulty. Replace with a new device.
HDMI Rx [U1000 or U1003] is faulty.
Replace with a new device.
Recheck from check item (2).
If it does not work, replace the PCB.
The digital audio block is faulty.
Check the digital audio device.
Check "AUDIO" in troubleshooting.
If it does not work, replace the PCB.
HDMI Rx [U1000 or U1003] is faulty.
Replace with a new device.
YES
YES NO
NO
NOYES
3.3V
The diagram shows an example of the wave-
form of pin 129. (I2S0 Data)
Waveform check points
- Crest value (3.3 V normally)
- Signal change
Check the waveform of each pin.
Voltage scale：1.0V/div
Time scale：500ns/div
106
Caution in
servicing
Electrical Mechanical Repair Information Updating

Denon AVR-X2400H Specifications

General

Receiver type	Surround
Frequency range	20 - 20000 Hz
Pre-out channels	2 SW
Input sensitivity	200 mV
Pre-out connectivity	Yes
Audio output channels	7.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.08 %
Power output per channel (1KHz@6 Ohm)	150 W
Power output per channel (20-20KHz@8 Ohm)	95 W
Display	VFL
HDCP version	2.2
Apple docking	No
Product color	Black
Audio decoders	DTS-HD Master Audio, DTS:X, Dolby Atmos, Dolby Surround
Volume control	Rotary
Center speaker impedance	16 Ω
Supported video modes	720i, 720p, 960p, 1080i, 1080p, 2160p
Supported graphics resolutions	3840 x 2160
HDMI in	8
Audio (L/R) in	4
Digital audio coaxial in	0
Ethernet LAN (RJ-45) ports	1
Multichannel audio input type	RCA
Component video (YPbPr/YCbCr) in	2
AM band range	522 - 1611 kHz
FM band range	87.5 - 108 MHz
Supported radio bands	AM, FM
Internet radio services supported	Deezer, Napster, Pandora, SIRIUS Internet Radio, Spotify, Tidal, iHeartRadio
Audio formats supported	ALAC, DSD, FLAC, MP3, WAV
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.1 W
Power consumption (typical)	500 W
Headphone connectivity	3.5 mm
Connectivity technology	Wired & Wireless
Speakers connectivity type	3.5mm
Certification	CE, EAC

Weight and Dimensions

Depth	339 mm
Width	434 mm
Height	167 mm
Weight	9400 g