Denon AVR-3808CI Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : DZ09-204
Date: November 13, 2009

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Model: AVR-3808CI

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

Server).

Countermeasure is applicable only upon claim from the customer.

Symptom: 1) No playback of HD-sat receiver after selects another source. If

you switch on AVP-A1HD with input e.g. SAT and HDMI is configured of HD-Sat
receiver can you watch the HD-movie. If you toggle between Sat and another
source the HD-movie is not visible.

2) When A/V amplifier connects to BD/DVD player with Denon Link 4th
connection, Pop noise might be occurred after open/close the Tray of BD/DVD
player while reproducing of translation of the DSD-PCM.

Solution:

METHOD OF UPDATE via DPMS (D&M Product Management Server) Read me

at first! When you already updated the firmware of the unit via "DPMS", it is not
necessary to initialize the customer’s unit again. At this time, please skip item
"Preparation of the update."

Preparation of the update.

We didn’t show this preparation Instruction on Instruction Manual. Please explain
additional this Instruction to the customers when updating the firmware.

Caution: It is necessary to initialize the unit before the update work begins. The

customer has to initialize their A/V product. Please update the firmware after you
confirm this matter to the customer beforehand.

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:

1) Turn off the "Power switch" of unit.

2) Open the door on the front panel.

3) While holding the "△" and "▽" buttons (SYSTEM CONTROL) down
simultaneously, turn the "Power switch" on.

4) The FL Display indicates all digits at interval a second.

5) Turn off the "Power switch" of the unit.
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 (not a wireless connection).

4) Turn the Power Supply of the unit on.

5) The unit sets the Internet. It wishes waiting for about two minutes until
customer's router ends the setting.

The update doesn't succeed when the customer's set cannot correctly hook up to
the Internet. In this case, please confirm the internet environment of the customer
house. Check to see if the customers set can receive internet radio. 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.

9) Select the "Start" on GUI.

10) Press the "ENTER" button.

11) The firmware will start updating.

Caution: When the firmware update starts correctly, the GUI and the audio

signal, etc. everything stops, and becomes only the update operation.

12) The GUI display disappears, and becomes only FL display.

13) During the updating, the FL Display indicates the procedure of update the
firmware.
Time necessary for update: approximately 3 min.

______________________________________________________________________________________

CONFIDENTIALITY NOTICE:

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.