Denon AVR-1610, AVR-590, DZ09-361 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : DZ09-361
Date: April 15, 2010

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Model: AVR-1610, AVR-590

Subject: Correction of the Firmware via DFW (D&M Firmware Writer).

Countermeasure is applicable only upon claim from the customer.

Symptom: 1) Crackling noise on surround back speakers during playback of

DTS-HD-MSTR 6.1 disc.

2) There is the case that a sound does not out from subwoofer when turn on the
power of the unit in the state that Multi EQ is Enable.

3) The unit can not off the "Audio MUTE" depending on a timing of "MUTE
demand signal "from HDMI Receiver.
3-1) problems (no sound) with the new firmware update (DZ09-213)
3-2) HDMI-interoperability issue with Humax Foxstat DVR.
3-3) HDMI-interoperability issue with HUMAX Foxsat STB
3-4) loss of audio output from the 2310

4) The sound of HD audio part is not output by combining BD-C6900 (by
Samsung) and AVR-3310.

Solution:

METHOD OF UPDATE The firmware via RS232C.

We will supply the following program files for updating the subject models.
Please refer to the following Instruction Manual for updating.

DFW Software

Firmware Update Program:
DFW software DFW_0038_AVR_AVC1610_AVR590_(Rev.1.0.6).exe

Instruction Manual for Firmware Update Program:
DFW_V0038_AVR_AVC1610_AVR590_Rev.1.0.6_manual_EN.pdf

We corrected the firmware so that no malfunction occurs.

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The information contained in this document is intended for the exclusive use by DENON Authorized Service Centers and their
employees. This document may contain information that is privileged, confidential and may be protected from disclosure under
applicable laws and terms of the DENON Service Agreement. Any distribution, disclosure, dissemination or copying of this
document and the information it contains is prohibited. No responsibility will be accepted by DENON for any damage, injury or loss
resulting from the misuse of the information contained in this document.

CONFIDENTIALITY NOTICE:

Firmware

Firmware for all:

AVR-1610CI_AVR1610_AVC1610_AVC1620_AVR590_DZ09-361.bin.zip

Serial Number Range:

Please apply the above modification to the production models in the following
serial numbers.

AVR-1610, AVR-590: All

______________________________________________________________________________________

The information contained in this document is intended for the exclusive use by DENON Authorized Service Centers and their
employees. This document may contain information that is privileged, confidential and may be protected from disclosure under
applicable laws and terms of the DENON Service Agreement. Any distribution, disclosure, dissemination or copying of this
document and the information it contains is prohibited. No responsibility will be accepted by DENON for any damage, injury or loss
resulting from the misuse of the information contained in this document.

CONFIDENTIALITY NOTICE: