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100 Corporate Drive Mahwah, NJ 07430

Service Bulletin
No. : OST-F1337
Date: June 30, 2008
_____________________________________________________________

Model: S-52, S-32

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

Symptom: Audio cannot play back when connected with a wireless LAN using
a "Buffalo WZR2-G300N (AirStation)".

Solution: We corrected the firmware so no malfunctions occur.
METHOD OF UPDATE via DPMS (Denon Product Management Server)
Updating the firmware (from Rhapsody function)
1) Please pull out the AC cable from the AC strip. (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.) The connection of the network
recommends the Ethernet cable for certain update.
3) Please insert the AC cable into the AC strip. (Turn the Power Supply of the
unit on.)
4) Turn on the Power of unit by "FUNCTION on/off" button.
5) The unit connects the Internet. It wishes waiting for about two minutes until
customer's router ends the setting.

Caution: The update won't succeed when the customer's unit cannot hook up to
the Internet correctly. In this case, please confirm the internet environment at the
customer's house. If the Internet radio can be received then the internet
connection is good. There are some problems under the internet environment
when the Internet radio cannot be received.

______________________________________________________________________________________
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.
6) Either turn "Multi Jog" or press "SKIP REV/SKIP FWD" after pressing
"SOURCE" to select "SETUP" icon then press "ENTER".
7) Turn "Multi Jog" to select "Firmware Update" then press "ENTER".
8) Turn "Multi Jog" to select "Update Start" then press "ENTER".
9) The firmware will start updating.

10) During the update, the LCD Display indicates the procedure while updating
the firmware.
11) Time necessary for update: approximately 30 min.
Caution: The update time might change depending on the situation of the DPMS
server and the speed of the Internet environment at the customer's house.
12) After upgrading, the LCD Display indicates below.

13) The updating of Firmware has ended but the blank display continues for 10
seconds or more.
Caution: If you pull out the AC cable from AC strip before 10 seconds, the unit
will be damaged. Please wait for at least10 seconds or more.
14) Please pull out the AC cable from the AC strip. (Turn the Power Supply of
the unit off.)
15) Finish.

When the unit already updated the latest firmware, the FL Display indicates
following indication.

Note: 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.
______________________________________________________________________________________
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.
______________________________________________________________________________________
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 during the updating operation:
1) Please do not turn off the "DHCP" setting 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 yourself. If you make a mistake in the setting
with "DHCP" turned off, the unit might not operate, and in the worst situation the
unit will be damaged. Please do not touch the setting of "DHCP" except in
special circumstances.
2) When the customer uses "Netgear router 614 Series" for updating,
deactivate "uPnP" in the router.
3) Please do not turn off the Power of the unit or pull out AC code 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.

Confirming the firmware's number after upgraded:
After completing the updating operation, the new version number can be
confirmed by starting up the unit according to the following procedure. With the
following operation, the unit can be set to the Flash-ROM Version-Number
Confirmation Mode.
1) Please pull out the AC cable from the AC strip. (Turn the Power Supply of the
unit off.)
2) Please insert the AC cable into the AC strip (Turn the Power Supply of the unit
on.), while holding both "DIMMER" button and "SKIP REV" button on the front
panel simultaneously.
3) Turn on the Power of unit by "FUNCTION on/off" button.
4) Pressing the "SOURCE" button.
5) Either turn "Multi Jog" or press "SKIP REV/SKIP FWD" to select "SETUP"
icon then press "ENTER".
6) Turn "Multi Jog" to Select "Version Display" then press "ENTER".
7) The version of Firmware is indicated.

______________________________________________________________________________________
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.
The version numbers of the firmware 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-digit)

Model Serial Number
S-52 03721 ~
S-32 03401 ~

______________________________________________________________________________________
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.