Denon AVR-S650H Service Manual

TROUBLE SHOOTING
1. POWER
≧ 0.6V
1.1. The unit does not power on
Does the power indicator on the front panel ash
in green when the power is turned on?
Does the power display on the front panel lights
green after approximately 8 seconds?
Check the voltage of [CN754 : 5pin] on the DIGITAL
PCB while the power display is ashing in green.
Check the voltage of [CN753 : 6pin] on the DIGITAL
PCB while the power display is ashing in green.
Remove the connector [BN502] of the MAIN PCB.
Check the "3-2. Protection History Display Mode"
The unit does not power on
Is a fuse blown?
Is DC 5.2V being supplied from the SMPS PCB
[BN601] 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 DC 5.2V output even when the Board in wire
[BN601] supplying power from the SMPS PCB to
the DIGITAL PCB is removed?
Check the circuits around the Microproces-
sor on the DIGITAL PCB and replace any faulty
parts.
Check for breakages and short circuits in the cir-
cuits and parts between [CN741] on the DIGITAL
PCB and the microprocessor power supply and
replace any faulty parts.
TO "6. SMPS"
0V 3.3V
0V
Check for leaks and short circuits
in the parts on the primary side.
Replace any faulty parts.
Blown fuse
Check the rectier diode in the
rectier circuit on the secondary
side, and check for short circuits.
Replace any faulty parts.
Replace the fuse after repair.
Check for short circuits between the
regulator output terminal and GND
in the power supply stabilization
circuit. Replace faulty parts if there
is a short circuit.
1.2. Fuse is blown
NO
YES
NO
YES YES
NO
YES
YES NO
NO YES
YES
Is a fuse blown? Connect the connectors correctly.
NO
NO
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
65

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