Denon AVR-X8500H Service Manual

3-2. Error Code H1-02 failure detection procedure
Check the power supply voltage. (HDMI SW1)
Check item(11). Check the power supply voltage. :
Does the power supply voltage of the HDMI SW1 [U2401] indicate the correct voltage (1.1V, 3.3V)?
The test points are as follows.
HDMI SW1
U2401
1.1V
3.3V
38pin
112pin
Check item(12). Check the power supply voltage. :
Check the power components [U3604] and the pattern on the sub-
strate.
If there is no problem, remove the HDMI SW1 [U2401] from the sub-
strate and measure the voltage at the test point of check item (11).
Is the voltage correct (1.1V or 3.3V)?
Replace with a new device.
check item (1) again after replacing [R2460/R2461] with a new
resistor.
If there is still a problem, the HDMI SW1 [U2401] is faulty.
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.
Recheck from check item (1).
If it does not work, replace the PCB.
Checking device. [U2401 : MN864788]
NOYES
NOYES
YES
Checking the reset waveform. (HDMI SW1)
Check item(13). Checking the reset waveform :
Check the waveform.
Is the TP waveform of the TP near the HDMI SW1 [U2401] correct
(like the one shown in the diagram) when the power is turned
on?
HDMI SW1
U2401
RESET
Check the reset circuit between
CPU [U6201] and HDMI SW1
[U2401].
If there is no problem, the HDMI
SW1 [U2401] is faulty.
Replace with a new device.
NO
Examples of conrmation waveform
Voltage scale : 1.0V/div
Time scale : 20ms/div
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
101

Denon AVR-X8500H Specifications

General

Channels	13.2
Power Output	150W per channel (8 ohms, 20Hz-20kHz, 0.05% THD)
Frequency Response	10Hz-100kHz (+1, -3dB)
HDMI Inputs	8 (1 front)
HDMI Outputs	3
Dolby Atmos	Yes
DTS:X	Yes
IMAX Enhanced	Yes
HEOS Multi-room	Yes
Wi-Fi	Yes
Bluetooth	Yes
Voice Control	Amazon Alexa, Google Assistant, Apple Siri
Impedance	4-16 ohms
HDR Compatibility	HDR10, Dolby Vision, HLG
Audio Return Channel (ARC)	Yes
Digital Audio Inputs	2 Optical, 2 Coaxial
Analog Audio Inputs	6
Phono Input	Yes
Speaker Connectors	Binding Posts
Supported Audio Formats	MP3, WMA, AAC, FLAC, ALAC, WAV, DSD
Surround Sound Support	Dolby Atmos, DTS:X, Auro-3D
Tuner	AM/FM
Input Sensitivity/Impedance	200 mV / 47 kohms
HDCP Support	2.2
Other Connections	USB, Ethernet, RS-232C
Wireless Connectivity	Wi-Fi, Bluetooth
Signal-to-Noise Ratio	102 dB
DAC	AKM AK4490EQ (32-bit/192kHz)
Total Harmonic Distortion	0.05% (20Hz - 20kHz, 150W)