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100 Corporate Drive Mahwah, NJ 07430

Service Bulletin
No. : OST-F1341
Date: July 3, 2008
_____________________________________________________________

Model: AVR-3808CI

Subject: Correction of the Firmware via DPMS (Denon Product Management
Server).

Symptom: 1) Setup wrong translation in German.
2) Problem for Tuner preset memory.
3) Scroll speed of "Artist" becomes slow when playback music files with DLNA by
network-audio.
4) There is no direct "Tuner FM" or "Tuner AM" command (if customer issues
tuner command twice accidentally, tuner band will change. This is an issue from
an ease of use point of view)
5) MVUP/down (master volume up/down) command can effect zone 2 volume if
any zone 2 command has been recently sent. (MVUP command should only
effect MAIN ZONE, regardless of what happens in zone 2. IR commands do not
exhibit this behavior)
6) Even when the function that allocates DENON Link is not used with MAIN
ZONE, a digital signal is not output from ZONE 2 and ZONE 3.
7) The disc where "DolbyDigital" and "TrueHD" are alternately recorded is play
backed. And, when "DolbyDigital" and "TrueHD" are continuously changed, the
sound is not outputted.
8) When a specific stream sound source of "DTS-HD MA 7.1ch" is play backed
by "5.1ch", the sound is distorted.

Solution: We corrected the firmware so that no malfunction occurs.
METHOD OF UPDATE via DPMS (Denon Product Management Server)

______________________________________________________________________________________
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.
Read me 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 "7-1 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.

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.
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 setting.

Caution: The update doesn't succeed when the customer's set cannot hook up to
the Internet correctly. In this case, please confirm the internet environment of the
customer's house. If Internet radio can be connected then the internet connection
is good. 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".

______________________________________________________________________________________
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 interrupts when it is not possible to connect it with the
Internet correctly. In this case, please re-do again from step 1).

______________________________________________________________________________________
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.
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. stop everything, and become 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 50 min.

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.

______________________________________________________________________________________
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.
14) After upgrading, the FL Display indicates below.

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 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
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.

Confirming the firmware's number after upgraded:
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.

______________________________________________________________________________________
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.
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.

Serial Number Range:
We will apply the above modification to the production models beginning from the
following serial numbers. (Last 5-digits)

AVR-3808CI 31831 ~

______________________________________________________________________________________
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.