Denon AVR-791 Service Manual

22
ABOUT REPLACE THE MICROPROCESSOR WITH A NEW ONE
When replaced of the U-PRO (Microprocessor) or the Flash ROM, conrm contents of the following.
PWB Name Ref. No. Description
After
replaced
Remark
DIGITAL U3102 R5F64169DFD B SOFTWARE: Main
DIGITAL U3301 R5F3650KNFB B SOFTWARE: Sub
DIGITAL U1903 EN29LV160BB-70TIP B SOFTWARE: DSP ROM
DIGITAL U1707 EPM3032A B SOFTWARE: Audio PLD
After replaced
A : Mask ROM (With software). No need write-in of software to the microprocessor.
B : Flash ROM (With software). Usually, no need write-in of software. But, when the software was updated, you should be
write-in of the new software to the microprocessor or ash ROM. Please check the software version.
C : Empty Flash ROM (Without software). You should be write-in of the software to the microprocessor or ash ROM.
Refer to "Update procedure" or "writing procedure", when you should be write-in the software.
VERSION UPGRADE PROCEDURE OF FIRMWARE
1. Preparations before starting the operation
(1) Personal Computer (Installed “FlashWriter7_001_forAVR1611_1911_2311.exe”).
(2) RS-232 cable (9P (Male ), Straight).
(3) 8U-210100 Writing Kit.
2. ConnectionoftheAVreceiver/amplier
(1) Conrm the power on/off switch of the AV receiver/amplier is turning off.
(2) Connect the update terminal of AV receiver/amplier with the “Writing Kit”.
(3) Connect the RS-232C cable from PC with the “Writing Kit”.
3. TurnontheAVreceiver/amplier
Operate the following. Turn on the AV receiver.
(1) Connect the power cable to the AC outlet while simultaneously pushing the "SURROUND MODE
0
"
button and the
"RETURN" button of the front panel.
(2) Conrm the power indicator is green and “WRITTING” is displayed in the front panel.
PC
Writing Kit
RS-232C Cable
4P FFC Cable
This side is contacts of
flexible card cable.
S709
S708
S707 S706 S702
S706-709 : No Preference
S702 : 3.3V
s

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)