Denon AVR-S740H Service Manual

You can update the rmware by downloading the latest version with USB ash drive.
2.1. Connecting to the USB ash drive
(1) Preparation
・ Windows PC
・ USB ash drive format : Prepare a USB ash drive formatted in FAT16 or FAT32.
b
We recommend a USB ash drive that has an LED installed.
NOTE :
• Use a memory that supports USB2.0.
• Do not run the USB ash drive through a hub.
• Do not connect a computer to the USB port of this unit using a USB cable.
• Do not use an extension cable when connecting the USB ash drive.
• Save the update le on a blank USB ash drive for use.
• If a USB ash drive cannot be updated, replace it with a different USB ash drive and perform the
update again.
2.2. Unzipping the Downloaded File
Unzip the downloaded le on your computer.
XXXXXXXXXXX xxxxxxxxxx_xxxxxxxx.zip
There are folders or les after unzipping.
Copy these folders or les onto the USB ash drive.
The folders or les must be placed in the root directory of the USB ash drive.
copy to USB flash drive
2. Update preparation with a USB ash drive
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
149

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