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100 Corporate Drive Mahwah, NJ 07430

Service Bulletin
No. : DZ09-204
Date: November 13, 2009
_____________________________________________________________

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: We corrected the firmware so that no malfunction occurs.
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.

______________________________________________________________________________________
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.
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.
Caution: The update time might change depending on the situation of the DPMS
server and the speed of the Internet environment of the customer house.

14) After upgrading, the FL Display indicates below.

15) The unit initializes automatically.
When the unit already updated the latest firmware, the FL Display indicates
following indication.

Troubleshooting: If the display reads as shown below, check the settings and
network environment, then update again. The problem is not in the Internet
connection if the Internet radio can be able to be received correctly.

______________________________________________________________________________________
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.
Cautions during the updating operation:
1) Please do not turn off the setting of "DHCP" when you update the unit.
(Initialization is turning on.) Please execute it under the guidance of the IT staff
with computer skills when the setting of "DHCP" is unavoidably turned off by
limiting the electronic environment, and you set IP Address, the subnet mask, the
default gateway, and DNS, etc. for myself. When it makes a mistake in the
setting with "DHCP" turned off, the unit might not operate, and the unit be
______________________________________________________________________________________
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.
damaged in the worst situation. Please do not touch the setting of "DHCP"
except in special circumstances.
2) When the customer use "Netgear router 614 Series" for updating, "uPnP"
have to deactivate in the router.
3) Do not turn off the Power of the unit during the updating operation.
4) If the Display has kept indicating fixed during the updating operation, wait
longer than total updating time. Then, turn off the Power of the unit and start the
updating operation from the beginning again.
5) The unit doesn't break down while updating it when the power supply of the
unit is turned off or the cable of the Internet is pulled out.
6) Please turn off and turn on the power supply when the unit becomes unstable.
7) Please execute initialization when it is not improved. Still, please repair by
service when it is not improved.

7-3. Confirming the firmware number after upgrading:
After completion of the updating operation, the new version number can be
confirmed by starting up the A/V Receiver according to the following procedure.
With the following operation, the A/V Receiver can be set to the Flash-ROM
Version-Number Confirmation Mode. Turn the power of the A/V Receiver on,
while holding both "STATUS" button and "RETURN" button on the front panel
simultaneously.

Every time the "STATUS" Button is pressed, version numbers of the MAIN, SUB,
etc. are indicated on the front panel section in the following order.

AVR-3808CI

______________________________________________________________________________________
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.
Pay Upgraded AVR-3808CI

Serial Number Range:
Please apply the above modification to the production models in the following
serial numbers.

All models

______________________________________________________________________________________
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.