Denon AVR-791 Service Manual

5
CAUTION IN SERVICING
Initializing AV SURROUND RECEIVER
AV SURROUND RECEIVER initialization should be performed when the μcom, peripheral parts of μcom, and Digital
P.W.B. are replaced.
1. Turn off the power using ON/STANDBY button.
2. Press ON/STANDBY button while simultaneously pressing SURROUND MODE
0
and SURROUND MODE
1
buttons.
3. Check that the entire display is ashing with an interval of about 1 second, and release your ngers from the 2
buttons and the microprocessor will be initialized.
Service Jigs
When you repair the printing board, you can use the following JIG (Extension cable kit).
Please order to Denon Ofcial Service Distributor in your region if necessary.
8U-110084S : EXTENSION UNIT KIT : 1 Set
s
(Refer to 20 page)
When you update the rmware, you can use the following
JIG (RS232C to internal connector conversion adapter with 4P FFC cable kit ).
s
Please order to Denon Ofcial Service Distributor in your region if necessary.
8U-210100S : WRITING KIT : 1 Set
(Refer to 22 page)
Note:
•
If step 3 does not work, start over from step 1.
•
All user settings will be lost and this factory setting will be recovered when this initialization mode.
So make sure to memorize your setting for restoring after the initialization.
SURROUND MODE 0
SURROUND MODE
1
ON/STANDBY

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)