Denon AVR-791 Service Manual

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8. Notice:
Please keep the following notice for rmware update.
(a) Keep the PC environment
(b) Avoid the communication cable from the electrical noise source.
(e.g. telephone cable, AC line, a uorescent light)
(c) Don’t remove cable during update.
(d) Don’t turn off the power during update.
(e) Don’t run other PC application during update.
(f) Stop the resident program on PC (Virus checker and System check utilitu, etc)
(g) Stop the screen saver on PC.
(h) Stop the power save ability on PC.
(i) In case of laptop PC, Use the AC adaptor.
Conrmingthermware’snumberafterupgraded
After completion of the updating operation, the new version number can conrmed by starting up the AVR1911 or AVR791
according to the following procedure.
With the following operation, the AVR1911 or AVR791 can be set to the Flash ROM Version-Number Conemation mode.
Turn on power switch while simultaneously pressing "DIMMER" and "STATUS" buttons on the front panel. Every time the
"STATUS" button is pressed, version number of the Model, Main, Sub, … are indicated on the front panel section in the
following order.
Depression Button Name Remarks
1 STATUS Model Name AVR1911 or AVR791 **
2 STATUS Main CPU Main: **.**
3 STATUS - Main FBL: **.**
4 STATUS Sub CPU Sub: **.**
5 STATUS - Sub FBL: **.**
6 STATUS DSP ROM DSP: **.**
7 STATUS Audio PLD A_PLD: **.**

Denon AVR-791 Specifications

General

Number of Channels	7.1
HDMI Inputs	4
HDMI Outputs	1
Audyssey Technologies	Audyssey MultEQ, Audyssey Dynamic Volume, Audyssey Dynamic EQ
4K Pass-Through	No
Signal-To-Noise Ratio	100 dB
HDMI Switching	Yes
Input Sensitivity	200 mV
THD	0.08%
Surround Sound Effects	Yes
Digital Sound Processor (DSP)	Yes
DSP Preset Qty	7
Tuner Bands	AM/FM
Preset Station Qty	56
Auto Preset Memory	Yes
HDMI Pass-Through	Yes
Frequency Response	10Hz-100kHz
Power Output	90 W per channel (8 ohms, 20Hz-20kHz, 0.08% THD)
Dolby Technologies	Dolby Digital Plus, Dolby TrueHD
DTS Technologies	DTS, DTS-HD Master Audio, DTS-HD High Resolution Audio, DTS Neo:6
Response Bandwidth	10 - 100000 Hz
Input Impedance	47 kΩ
Audio D/A Converter	24-bit / 192kHz
DSP Presets	Rock Arena, Jazz Club, Mono Movie, Matrix, Virtual, Game
Tuning Range	AM: 520 - 1710 kHz, FM: 87.5 - 108 MHz
Connector Type	HDMI
Amplifier Output Details	90W x 7 (8 ohms, 20Hz-20kHz, 0.08% THD)
Video Conversion	Yes (Composite to HDMI)