Denon AVR-X2500H Service Manual

When the results of check item (49) are "00"
(Detection of 5V is not OK.)
When the results of check item (50) are "00 or 04"
(If the DDC are not OK)
Check item(51). Check the +5V voltage :
Does "+5 V" at the following test point indicate 5 V?
The test points are as follows.
U1000
70 pin
5V
Check item(52). Check the DDC line :
Does "DDCCL / DDCDA" signal of the RX1 [U1000]
indicate 5 V?
The test points are as follows.
U1000
74/75 pin
Check the +5V voltage. (Front HDMI Buffer) Check the DDC line. (Front HDMI Buffer)
HDMI Rx1 [U1000] is faulty.
Replace with a new device.
Recheck from check item (2).
If it does not work, replace the PCB.
Recheck from check item (2).
If it does not work, replace the PCB.
HDMI Rx1 [U1000] is faulty.
Replace with a new device.
Check for a short circuit in the 5 V line, the
Front HDMI FFC, and the 5 V Switch [U1002].
If there is no problem, the HDMI Rx1 [U1000]
or the 5 V Switch [U1002] is faulty.
Replace with a new device.
Check for a short circuit in the DDC line and
check the Front HDMI FFC.
If there is no problem, the Front HDMI Buffer
[U3000] is faulty.
Replace with a new device.
YESYES
NO NO
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
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
113

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