Denon AVR-X8500H Service Manual

TROUBLE SHOOTING
1. POWER
0V
1.1. The unit does not power on
YES YES
NO
YES
NO
YES
NO
NO
Does the power indicator on the front panel
ash in green or white when the power is turned
on?
Is a fuse blown?
Does the power display on the front panel lights
green after approximately 10 seconds?
Check the voltage of [N6012 18, 19, 24 pin] on
the DIGITAL PCB while the power display is ash-
ing in green or white.
Remove the connector [N6012] of the SPEAKER PCB.
Check the "3-2. Protection History Display Mode"
The unit does not power on
Is a fuse blown?
Does the power shut down after several
seconds?
Is DC 5V being supplied from the SMPS PCB
[N6513] to the DIGITAL PCB?
See "1.2. Fuse is blown"
See "1.2. Fuse is blown"
Check the circuits around the Microprocessor
on the DIGITAL PCB and replace any faulty
parts.
TO "3-2. Protection History
Display Mode"
Are there any parts not fully connected into
the connectors that connect the PCBs?
Is DC5V output even when the connector
[N6001] supplying power from the SMPS PCB
to the DIGITAL PCB is removed?
Check the circuits around the Microprocessor
on the DIGITAL PCB and replace any faulty
parts.
Check for breakages and short circuits in the
circuits and parts between [N6001] on the
DIGITAL PCB and the microprocessor power
supply and replace any faulty parts.
Connect the connectors correctly.
TO "6. SMPS"
YES
Check for leaks and short
circuits in the parts on the pri-
mary side. Replace any faulty
parts.
Blown fuse
Check the rectier diode in the
rectier circuit on the second-
ary side, and check for short cir-
cuits. Replace any faulty parts.
Replace the fuse after repair.
Check for short circuits between
the regulator output terminal and
GND in the power supply stabiliza-
tion circuit. Replace faulty parts if
there is a short circuit.
1.2. Fuse is blown
NO
NO
NO
YES
YES
3.3V
NO
YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
82

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)