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Denon AVR-X8500H Service Manual

Denon AVR-X8500H
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3-13. Error Code H1-16 failure detection procedure
Check the power supply voltage. (ARC IC)
Check item(39). Check the power supply voltage. :
Does the power supply voltage of the ARC IC [U3802] indicate the correct voltage (1.21V)?
The test points are as follows.
N3401
HDMI OUT
[MONITOR2]
L3805
1.1V
Check item(40). Check the power supply voltage. :
Check the power components [U3801] and the pattern on the sub-
strate.
If there is no problem, remove the ARC IC [U3802] from the sub-
strate and measure the voltage at the test point of check item (39).
Is the power supply voltage correct (1.2V)?
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.
Checking device. [U3802 : SiI9437]
NOYES
NOYES
YES
Checking the reset waveform. (ARC IC)
Check item(41). Checking the reset waveform :
Check the waveform.
Is the "RESET" waveform of the ARC IC [U3802] correct (like the
one shown in the diagram) when the power is turned on?
N3402
HDMI OUT
[MONITOR1]
U3802
R3805: RESET
Check the reset circuit between
CPU [U6201] and ARC IC [U3802].
If there is no problem, the ARC IC
[U3802] is faulty.
Replace with a new device.
NO
Examples of conrmation waveform
Voltage scale : 1.0V/div
Time scale : 20ms/div
ARC IC [U3802] is faulty.
Replace with a new device.
Recheck from check item (1).
If it does not work, replace the PCB.
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
112

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Denon AVR-X8500H Specifications

General IconGeneral
Channels13.2
Power Output150W per channel (8 ohms, 20Hz-20kHz, 0.05% THD)
Frequency Response10Hz-100kHz (+1, -3dB)
HDMI Inputs8 (1 front)
HDMI Outputs3
Dolby AtmosYes
DTS:XYes
IMAX EnhancedYes
HEOS Multi-roomYes
Wi-FiYes
BluetoothYes
Voice ControlAmazon Alexa, Google Assistant, Apple Siri
Impedance4-16 ohms
HDR CompatibilityHDR10, Dolby Vision, HLG
Audio Return Channel (ARC)Yes
Digital Audio Inputs2 Optical, 2 Coaxial
Analog Audio Inputs6
Phono InputYes
Speaker ConnectorsBinding Posts
Supported Audio FormatsMP3, WMA, AAC, FLAC, ALAC, WAV, DSD
Surround Sound SupportDolby Atmos, DTS:X, Auro-3D
TunerAM/FM
Input Sensitivity/Impedance200 mV / 47 kohms
HDCP Support2.2
Other ConnectionsUSB, Ethernet, RS-232C
Wireless ConnectivityWi-Fi, Bluetooth
Signal-to-Noise Ratio102 dB
DACAKM AK4490EQ (32-bit/192kHz)
Total Harmonic Distortion0.05% (20Hz - 20kHz, 150W)

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