Denon AVR-S740H Service Manual

In the same way as for Network connection troubleshooting, check the Network Module power supply
and HEOSVersion is displayed correctly.
Is the antenna cable inserted correctly into Net-
work Module?
Is the Bluetooth device compatible with the A2DP
prole?
Is the Bluetooth function enabled on the Blue-
tooth device?
Connect the antenna cable correctly.
Use a device that is A2DP prole compatible.
Enable the Bluetooth function and try connecting
again.
5.2. Cannot establish a Bluetooth connection
Checking the unit
Check the Bluetooth device being used
NO
NO
NO
YES
YES
YES
Check the USB device being used
Is the USB device supported by this unit?
Is a USB hub being used?
This unit supports devices in the FAT16- and
FAT32-formatted mass storage class, MTP-com-
patible devices and iPod devices (except for some
models).
Do not use a USB hub.
Checking the unit
Can a voltage (5V) be conrmed between [JK101 :
1 - 4pin] (USB Connector) on USB PCB?
The USB signal circuit between Network Module and [JK101] of the USB PCB are faulty.
Are [CN813] of the DIGITAL PCB and [BN104] of
the USB PCB correctly connected?
The circuit around [IC814] of the DIGITAL PCB is
faulty.
Connect the connectors correctly.
5.3. Cannot recognize the connected USB device
NO
YES
YES
YES
YES
NO
NO
NO
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
78

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