Denon AVR-X2500H Service Manual

Example
The rst eight bytes are normally
"00FFFFFFFFFFFF00".
*If the AVR and the TV are not con-
nected via HDMI, the correct register
value cannot be veried.
When the results of check item (65) are "03"
(Detection of HPD is OK / Detection of RXSENSE is OK )
Check item(66). Check the Monitor EDID :
① Unplug the AC cord. Plug the AC cord into a power outlet.
② Send the transmission command "m_2" from Termite.exe.
Are the rst eight bytes of the returned value "00FFFFFFFFFFFF00"?
Check item(67). Checking the TMDS :
Check the TMDS waveform at the following test
point.
N1030
D2+ D2- D1+ D1- D0+ D0- CK+ CK-
HDMI
OUT 2
HDMI
OUT 2
Check item(68). Check communication with the
monitor :
Are waveforms of "DDCCLK" and "DDCSDA"
observed at the test point near the HDMI output
terminal [N1030]?
N1030
DDCSCK
DDCSDA
HDMI
OUT 2
HDMI
OUT 2
Checking the EDID register. (Monitor2)
HDMI Tx [U1039] is faulty.
Replace with a new device.
Recheck from check item (3).
If it does not work, replace the PCB.
HDMI Tx [U1039] is faulty.
Replace with a new device.
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Tx
[U1039] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
NOYES NOYES
less than 100KHz
5V
5V
This diagram shows an example of the DDC communica-
tion waveform.
-The high level voltage is 5V.
-The frequency of the DDC CLK is 100 KHz or less.
Check at each test point.
Voltage scale：2.0V/div
Time scale：40us/div
YES NO
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
120

Denon AVR-X2500H Specifications

General

HDMI in	8
Composite video in	2
Ethernet LAN (RJ-45) ports	1
AirPlay	No
Display	-
Sample rate	196 kHz
HDCP version	2.2
Product color	Black
Audio decoders	DSD, DTS-HD, DTS:X, Dolby Atmos, Dolby Surround, Dolby TrueHD
Volume control	Rotary
RS-232 interface	Yes
Connectivity technology	Wired & Wireless
Receiver type	Surround
Frequency range	20 - 20000 Hz
Output impedance	8 Ω
Input sensitivity	200 mV
Audio output channels	7.1 channels
Signal-to-Noise Ratio (SNR)	100 dB
Total Harmonic Distortion (THD)	0.08 %
Power output per channel (1KHz@6 Ohm)	185 W
Power output per channel (20-20KHz@8 Ohm)	95 W
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	500 W
Audio formats supported	AAC, ALAC, DSD, FLAC, MP3, WAV, WMA
AM band range	520 - 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, TuneIn, iHeartRadio
Supported graphics resolutions	3840 x 2160

Weight and Dimensions

Depth	340.3 mm
Width	434.3 mm
Height	167.6 mm
Weight	9389 g