Denon AVR-591 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 AVR1611 or AVR591
according to the following procedure.
With the following operation, the AVR1611 or AVR591 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 AVR1611 or AVR591 **
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-591 Specifications

General

Channels	5.1
Power Output	75 W per channel (8 ohms, 20 Hz - 20 kHz, 0.08% THD)
Frequency Response	10 Hz - 100 kHz (+1, -3 dB)
Input Sensitivity/Impedance	200 mV / 47 kohms
Signal-to-Noise Ratio	98 dB
HDMI Inputs	4
HDMI Outputs	1
Audyssey	Audyssey MultEQ
HDMI Pass-Through	Yes
Tuner Bands	AM/FM
Preset Station Qty	56
Total Harmonic Distortion	0.08%
Tuner Frequency Range	FM: 87.5 - 107.9 MHz, AM: 520 - 1710 kHz
Dolby Support	Dolby Digital, Dolby Digital Plus
DTS Support	DTS-HD Master Audio
Dimensions	434 x 167 x 382 mm
Weight	21.6 lbs (9.8 kg)