Denon AVR-X8500H Service Manual

Checking device. [U7004 : PCM9211]
3-12. Error Code H1-12 failure detection procedure
YES
Check item(36). Checking the reset :
Check the CPU.
Is the waveform of the TP near the DIR [U7004] correct (like the one
shown in the diagram) when the power is turned on?
U7004
34pin
Checking the reset waveform. (DIR)
Recheck from check item (1).
If it does not work, replace the PCB.
Check the reset circuit between CPU [U6201] and DIR [U7004].
If there is no problem, the DIR [U7004] is faulty.
Replace with a new device.
NO
Examples of conrmation waveform
Voltage scale : 1.0V/div
Time scale : 20ms/div
Check item(37). Check the communication line :
Check the CPU.
Is the waveform of the TP near the DIR [U7004] correct (like the one
shown in the diagram) when the power is turned on?
U7004
25pin: CLK
23pin: MISO
26pin: CS
24pin: MOSI
Check item(38). Check the communication line :
Check DIR [U7004], CPU [U6201] patterns as well as soldering.
If there is no problem, go to the next step.
Check the communication line. (DIR)
DIR [U7004] is faulty.
Replace with a new device.
YES
*The diagram shows an example.
(Signal patterns vary depending on the tim-
ing.)
Points for checking waveforms
- Crest value (3.3V normally)
- Signal change
- CLOCK frequency (about 2MHz)
Voltage scale : 2.0V/div
Time scale : 2us/div
NOYES
Recheck from check item (1).
If it does not work, replace the PCB.
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
111

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)