Denon AVR-S740H Service Manual

Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the
digital PCB.
1. Press the power button to turn off the power.
2. While holding down buttons "ZONE2 SOURCE" and "DIMMER" simultaneously, press the power but-
ton to turn on the power.
3. Release the buttons after conrming that the display ashes at 1-second intervals.
＊ The unit is initialized.
Use network initialization mode to initialize the network related settings.
NOTE： • If the unit fails to enter the service mode in step 3, repeat the procedure from step 1.
• Initializing the device restores the customized settings to the factory settings. Write down
your settings in advance and recongure the settings after initialization.
AVR-X1500H
Use the following jigs (extension cable kit) when repairing the PCBs.
Order with your dealer for the jigs your dealer if necessary.
8U-110084S : EXTENSION UNIT KIT : 1 Set
(See JIG FOR SERVICING)
DIMMER
X
ZONE2
SOURCE
JIG FOR SERVICING
Make sure to initialize this unit after replacing the microcomputer or any peripheral equipment, or the
digital PCB.
1. Press the power button to turn off the power.
2. While holding down buttons "TUNER PRESET CH +" and "TUNE -" simultaneously, press the power
button to turn on the power.
3. Release the buttons after conrming that the display ashes at 1-second intervals.
＊ The unit is initialized.
Use network initialization mode to initialize the network related settings.
NOTE： • If the unit fails to enter the service mode in step 3, repeat the procedure from step 1.
• Initializing the device restores the customized settings to the factory settings. Write down
your settings in advance and recongure the settings after initialization.
AVR-S740H
Use the following jigs (extension cable kit) when repairing the PCBs.
Order with your dealer for the jigs your dealer if necessary.
8U-110084S : EXTENSION UNIT KIT : 1 Set
(See JIG FOR SERVICING)
X
TUNER
PRESET CH +
TUNE -
JIG FOR SERVICING
Initializing this Unit
AVR-X1500H
Initializing this Unit
AVR-S740H
POST-SERVICE PRECAUTIONS
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
7

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