Denon AVR-S650H Service Manual

Checking device. (HDMI Rx/Tx)
Check the power supply voltage. (HDMI Rx/Tx)
Check item(3-1.1.). Check the power supply voltage. :
Does the power supply voltage of the HDMI Rx/Tx [IC721] indicate the correct voltage (1.1V, 3.3V)?
The test points are as follows.
IC721
112pin
38pin
1.1V
3.3V
Check item(3-1.2.). Check the power supply voltage. :
Check the power components [IC741/IC744/Q7417] and the pattern
on the substrate.
If there is no problem, remove the HDMI Rx/Tx [IC721] from the
substrate and measure the voltage at the test point of check item
(3-1.1.).
Is the voltage correct (1.1V or 3.3V)?
Replace with a new device.
The power supply circuit is
faulty.
Replace the PCB.
Recheck from check item (3.1.).
If it does not work, replace the PCB.
3-1. Error Code H1-01 failure detection procedure
NO
NOYES
Go to next page.
Checking the reset waveform. (HDMI Rx/Tx)
Check item(3-1.3.). Checking the reset waveform :
Check the waveform.
When the power is turned on, is the TP [788_RST] waveform cor-
rect (as shown in the gure)?
IC721
788_RST
Check the reset circuit between
CPU [IC751] and HDMI Rx/Tx
[IC721].
If there is no problem, the HDMI
Rx/Tx [IC721] is faulty.
Replace with a new device.
Recheck from check item (3.1.).
If it does not work, replace the
PCB.
NO
Examples of conrmation waveform
Voltage scale：1.0V/div
Time scale：20ms/div
YES
YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
80

Denon AVR-S650H Specifications

General

Receiver type	stereo
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Audio output channels	5.2 channels
Signal-to-Noise Ratio (SNR)	98 dB
Total Harmonic Distortion (THD)	10 %
Power output per channel (1KHz@6 Ohm)	150 W
Power output per channel (20-20KHz@8 Ohm)	75 W
HDMI in	5
Composite video in	2
USB ports quantity	1
Speakers connectivity type	RCA
AM band range	520 - 1710 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM
Audio formats supported	AAC, ALAC, DSD, FLAC, MP3, WAV, WMA
Image formats supported	JPEG
HDCP	Yes
Display	VFL
HDCP version	2.3
Apple docking	No
Product color	Black
Audio decoders	DTS-HD Master Audio, Dolby TrueHD
Volume control	Rotary
AC input voltage	120 V
AC input frequency	60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	340 W
Package weight	9525 g
Package width	523 mm
Package height	229 mm

Weight and Dimensions

Depth	330 mm
Width	432 mm
Height	152 mm
Weight	7800 g