Denon AVR-1709, DZ09-220 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : DZ09-220
Date: November 18, 2009

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Model: AVR-1709

Subject: Countermeasure for a malfunction that was reported in the market.

Countermeasure is applicable only upon claim from the customer.

Symptom: When "Audyssey MultEQ" is operated at the (AAC) signal

decipherment of Dolby Digital and DTS, the output characteristic of sub-woofer is
not correct.

Solution:

properly.
MODIFICATION: We will supply the following program files. Please install the
Exclusive Writer Software to a PC and rewrite your customer's unit upon claim.
(Please refer to the supplied rewriting procedures.)

The Installation Software of the Exclusive Writer Software to be installed to the
PC. (The Software to be supplied)
"FWCV_AVR_AVC1709_1509_AVR689_V0078_SETUP.exe"

The Exclusive Writer Software: (After the installation, a short cut of the following
Exclusive Writer Software is created on the Desk-top of the PC.)
"FWCV_AVR_AVC1709_1509_AVR689_V0078.exe"

(The Exclusive Writer Software for the AVR-1909/789 that is installed using the
above Installation Software.)

We corrected the MICON software so that the unit operates

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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:

The Update Procedures and the Confirmation of the Version after the update: For
the update procedures, please refer to below manuals.
"FWCV_V0078_manual_AVR_AVC1709_AVR1509_AVR689.pdf"

To confirm the Version after the update, please refer to the last page of below
manuals. "FWCV_V0078_manual_AVR_AVC1709_AVR1509_AVR689.pdf"

Serial Number Range:

Please apply the above modification to the production models in the following
serial numbers. (Full Digits)

***3300001 ~ 8113317135

______________________________________________________________________________________

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: