Denon AVR-S750H Service Manual

3. Update method when the DIGITAL PCB or network module is replaced (Using a USB ash drive)
3.1. File structure on USB ash drive
DIGITAL PCB or network module is replaced onto the USB ash drive in the following structure.
After unzipping the les, store them in the root of the same USB ash drive.
Model Area Download from SDI
ALL avr_40.prod.update.factory.xxxx.zip
USB ash drive root
+ avr_40.prod.update.factory
+ xxxxxxzz.ota-download
+ heos_40.prod.update.factory
xxxxxx : Model name
zz : Region
3.2. Start the update.
NOTE :
• Remove the LAN cable from this unit when updating.
(Do not connect to a wired or wireless network.)
• The GUI menu setting details and image quality adjustment setting details are initialized when
Firmware Factory Restore is performed. Therefore, take a note of the setting details beforehand and
recongure the settings after update.
• Do not remove the USB ash drive until updating is completed.
• Do not turn off the power until updating is completed.
• It takes a maximum of approximately 25 minutes for update to complete.
Once an update is started, normal operations cannot be performed until it is completed.
(1) Press the power button to turn on the power.
(2) Wait for this unit to start up.
(3) Set the input source to HEOS Music.
Check that the display is as shown below.
–TuneIn Internet Radio
or
No Network Connection
Content of the display is scrolled.
(4) Insert the USB ash drive into the USB port.
Download firmware
in USB flash drive.
(5) USB Update starts automatically.
The Standby LED lights red.
Display during USB update
Please wait–––––
↓
Update–––**% **m
↓
Update Completed
It takes a maximum of approximately 25 minutes for update to complete.
(6) The unit restarts when update is complete.
b
When update is complete, the folder name on the USB ash drive changes to "avr_40.prod.update.factory.
done". To use the les again, delete the ".done" part.
(7) Execute Firmware Factory Restore.
AVR-X1600H
• While holding down buttons "
TUNER PRESET CH -
" and "
DIMMER
" simultaneously, press the power
button to turn on the power.
AVR-S750H
• While holding down buttons "
BAND
" and "
MODE
" simultaneously, press the power button to turn on
the power.
Display during Firmware Factory Restore
Restoring FW...
↓
Restore––**% **m
↓
Completed
It takes approximately 15 minutes for Firmware Factory Restore to complete.
(8) Execute Service Region Settings.
See "4. Update Method for Service Region Settings"
(9) Check that the version is the specied version. See "1. Version Display Mode"
(10) If necessary, use OTA or the USB ash drive to update the rmware to the newest version.
b
We recommend using the rmware update method using OTA.
See "5. Normal Firmware Update Method from USB Flash Drive" or "6. Normal Firmware Update
Method from OTA"
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
156

Denon AVR-S750H Specifications

General

Receiver type	stereo
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Audio output channels	7.2 channels
Signal-to-Noise Ratio (SNR)	98 dB
Total Harmonic Distortion (THD)	10 %
Power output per channel (1KHz@6 Ohm)	165 W
Power output per channel (20-20KHz@8 Ohm)	75 W
AirPlay	Yes
Display	VFL
HDCP version	2.3
Apple docking	No
Product color	Black
Audio decoders	DTS-HD Master Audio, Dolby TrueHD
Volume control	Rotary
HDMI in	6
Composite video in	2
Digital audio optical in	1
Package depth	432 mm
Package width	523 mm
Package height	229 mm
Package weight	10614 g
AC input voltage	120 V
AC input frequency	60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	400 W
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
Speakers connectivity type	RCA

Weight and Dimensions

Depth	330 mm
Height	152 mm
Weight	8618 g