Denon AVR-4810-CI Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : DZ09-366
Date: April 23, 2010

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Model: AVR-4810CI

Subject: Correction of the Firmware via DPMS (D&M Product Management

Server).

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) The unit can not off the "Audio MUTE" depending on a timing of "MUTE
demand signal "from HDMI Receiver.

3) "HDMI input" does not works when connect a Sky box by Thompson HD.
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) Radio station name is not displayed when play the station by choose the
preset after registered the Intermet radio station.

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

Solution:

Updating the firmware (Refer to the Instruction Manual.)

1) Turn the Power Supply of the unit off.

2) Connect the Ethernet terminal of the unit to the Network line by Ethernet
straight cable. (Don't use Ethernet cross cable.)

3) The connection of the network recommends the Ethernet cable for certain
update.

4) Turn the Power Supply of the unit on.

5) The unit sets the Internet. Wait for about two minutes until customer's router
ends the set up.

We corrected the firmware so that no malfunction occurs.

______________________________________________________________________________________

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:

Caution: The update doesn't succeed when the customer's set cannot connect to

the Internet correctly. In this case, please confirm the internet environment in the
customer’s house. Whether the set is able to receive Internet radio correctly or
not can be used to determine whether the Internet is properly connected. There
are some problems under the internet environment when the Internet radio can
not be received.

6) Press "MENU" button on the front panel and indicates the GUI menu.

7) Press "CURSOR" button.

8) The GUI indicates, "MANUAL SETUP" > "OPTION SETUP" > "Firmware
Update".

Caution: The update interrupts when it is not possible to connect it with the

Internet correctly. In this case, please do from 1) again.

______________________________________________________________________________________

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: