Denon AVR-S740H Service Manual

DISASSEMBLY
Flowchart
• Remove each part following the ow below.
• Reassemble the removed parts in the reverse order.
• Read "SAFETY PRECAUTIONS" before reassembling the removed parts.
• If wire bundles are removed or moved during adjustment or part replacement, reshape the wires after completing the work. Failure to shape the wires correctly may cause problems such as noise.
• See "EXPLODED VIEW"
FRONT PANEL ASSY
See "DISASSEMBLY"
1. FRONT PANEL ASSY
and "EXPLODED VIEW"
FRONT PCB
Ref. No. of EXPLODED VIEW : P 1
STANDBY PCB
Ref. No. of EXPLODED VIEW : P 2
PHONE PCB
Ref. No. of EXPLODED VIEW : P 3
MIC PCB
Ref. No. of EXPLODED VIEW : P 4
USB PCB
Ref. No. of EXPLODED VIEW : P 5
F-HDMI PCB
Ref. No. of EXPLODED VIEW : P 6
HDMI CABLE GUIDE PCB
Ref. No. of EXPLODED VIEW : P 8
FRONT CABLE GUIDE PCB
Ref. No. of EXPLODED VIEW : P 9
TOP COVER
REGULATOR PCB
See "DISASSEMBLY"
5. REGULATOR PCB
and "EXPLODED VIEW"
REGULATOR PCB
Ref. No. of EXPLODED VIEW : P 12
RADIATOR ASSY
See "DISASSEMBLY"
3. RADIATOR ASSY
and "EXPLODED VIEW"
MAIN PCB
Ref. No. of EXPLODED VIEW : P 7
BIAS TR PCB
Ref. No. of EXPLODED VIEW : P 10
DIFF-AMP PCB
Ref. No. of EXPLODED VIEW : P 13
PHONE WIRE GUIDE PCB
Ref. No. of EXPLODED VIEW : P 19
DIGITAL PCB ASSY
See "DISASSEMBLY"
2. DIGITAL PCB ASSY
and "EXPLODED VIEW"
DIGITAL PCB
Ref. No. of EXPLODED VIEW : P 14
LEGO MODULE ASSY
Ref. No. of EXPLODED VIEW : P 15
PHONO PCB
Ref. No. of EXPLODED VIEW : P 16
TUNER PCB
Ref. No. of EXPLODED VIEW : P 17
POWER TRANS
See "DISASSEMBLY"
6. POWER TRANS
and "EXPLODED VIEW"
POWER TRANS
Ref. No. of EXPLODED VIEW : P 18
SMPS PCB
See "DISASSEMBLY"
4. SMPS PCB
and "EXPLODED VIEW"
SMPS PCB
Ref. No. of EXPLODED VIEW : P 11
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
65

Denon AVR-S740H Specifications

General

Channels	7.2
Power Output per Channel	75 W (8 Ohms, 20 Hz - 20 kHz, 0.08% THD)
HDMI Inputs	6
HDMI Outputs	1
Dolby Atmos	Yes
DTS:X	Yes
Bluetooth	Yes
Wi-Fi	Yes
HEOS Multi-room	Yes
4K Ultra HD Pass-through	Yes
Power Output per Channel (6 Ohms)	110 W (6 Ohms, 1 kHz, 0.7% THD)
4K/Ultra HD Upscaling	Yes
Phono Input	Yes
Dolby Support	Dolby Atmos, Dolby TrueHD, Dolby Surround
Auto Calibration	Audyssey MultEQ
Input Sensitivity/Impedance	200 mV / 47 kOhms
Signal-to-Noise Ratio	98 dB (IHF-A weighted, Direct mode)
Ethernet	Yes
USB Port	Yes (front)
AM/FM Tuner	Yes
Supported Audio Formats	MP3, WMA, AAC, FLAC, ALAC, WAV, DSD
HDR Support	HDR10, HLG, Dolby Vision
Wireless Audio	AirPlay 2
DTS Support	DTS:X, DTS-HD Master Audio
Zone Audio	Zone 2
Frequency Response	10 Hz - 100 kHz (+1, -3 dB, Direct Mode)
Total Harmonic Distortion	0.08% (20 Hz - 20 kHz)
Built-in DAC	192 kHz / 24-bit