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100 Corporate Drive Mahwah, NJ 07430

Service Bulletin
No. : DZ10-147
Date: September 30, 2010
_____________________________________________________________

Model: DVD-A1UDCI

Subject: Correction of the firmware.
Countermeasure is applicable only upon claim from the customer.

Symptom: 1) DVD disc Schiller "Tagtraum" might be not reproduced.
2) When DVD software "15 Minutes" was reproduced, a unit might be stopped.

Solution: We corrected the firmware so that no malfunction occurs.
METHOD OF UPDATE via DPMS (D&M Product Management Server) At this
time, we have not uploaded the new firmware into web server for DPMS,
because we now update the firmware via DPMS once two months.

METHOD OF UPDATE by CD-R with firmware We will supply the following
program files for updating the subject models. Therefore, please record each
program file onto a blank CD-R separately, and update the unit upon customer
claim.

* Program Files to be supplied in SDI:

______________________________________________________________________________________
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.
Note: Upon recording the Disc:
a) When recording the supplied file on the blank CD-R, the format shall be
"ISO9660" and the session shall be "CLOSE".
b) When recording the supplied file on the disc, please use the lowest recording
speed that is available on your PC. If the file is recorded at a higher speed, the
rewriting operation may fail due to improperly recorded data on the disc.

Rewriting procedures of the SYSTEM ROMs.
(1) Download the "A1UD_SYS.ROM" firmware in SDI.
(2) Please make "DM_FM_UP" folder on PC.
(3) Please insert the "A1UD_SYS.ROM" firmware into "DM_FM_UP" folder.

Root ------ DM_FM_UP
|_______"A1UD_SYS.ROM"

(4) Please burn the CD-R by at once mode.
(5) Turn the Power Supply of the unit on. Press the "OPEN/CLOSE" button and
open the Disc Tray.
(6) Put the recorded CD-R on the Disc Tray and press the buttons on the remote
control in the order of "7", "9", "2" and "ENTER".
(7) The Disc Tray will close automatically.
(8) The FL Display indicates progress of updating. Time necessary for update:
approximately 5 min.
(9) The unit turns off and turns on, and then "NO DISC" is indicated.
(10) The new firmware is installed completely.
(11) Press the "OPEN/CLOSE" button and open the Disc Tray.
(12) When "HD" indicator does not light on FL Display,
Please go to next STEP (13). When "HD" indicator lights on FL Display, Please
go to step (6) and update again.
(13) Take out the CD-R from the Disc Tray.

Rewriting procedures of the FE/BE ROMs.
(1) Download the "DcmUpdate.fw" and "DcmAuthentication" firmware in SDI.
(2) Please insert the "DcmUpdate.fw" and "DcmAuthentication" firmware into the
Root directory.

Root
|_______"DcmUpdate.fw
|_______"DcmAuthentication"

(3) Please burn the CD-R by at once mode.
(4) Turn the Power Supply of the unit on. Press the "OPEN/CLOSE" button and
open the Disc Tray.

______________________________________________________________________________________
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.
(5) Put the recorded CD-R on the Disc Tray and press the buttons on the remote
control in the order of "7", "9", "2" and "RETURN".
(6) The Disc Tray will close automatically.
(7) The FL Display indicates "LOADING", then progress of updating. Time
necessary for update: approximately 25 min.
(8) The new firmware is installed completely.
(9) The Disc Tray opens automatically.
(10) Take out the CD-R from the Disc Tray.

Rewriting procedures of the DSP1.
(1) Download the "A1UD_AD1.ROM" firmware in SDI.
(2) Please make "DM_FM_UP" folder on PC.
(3) Please insert the "A1UD_AD1.ROM" firmware into "DM_FM_UP" folder.

Root ------ DM_FM_UP
|_______"A1UD_AD1.ROM"

(4) Please burn the CD-R by at once mode.
(5) Turn the Power Supply of the unit on. Press the "OPEN/CLOSE" button and
open the Disc Tray.
(6) Put the recorded CD-R on the Disc Tray and press the buttons on the remote
control in the order of "7", "9", "2" and "ENTER".
(7) The Disc Tray will close automatically.
(8) The FL Display indicates progress of updating. Time necessary for update:
approximately 3 min.
(9) The unit turns off and turns on, and then "NO DISC" is indicated.
(10) The new firmware is installed completely.
(11) Press the "OPEN/CLOSE" button and open the Disc Tray.
(12) Take out the CD-R from the Disc Tray.

Confirmation of the version:
(1) Press the "OPEN/CLOSE" button and open the Disc Tray.
(2) Remove the Disc from the Tray.
(3) Please confirm! "NO DISC" on the FL Display.
(4) While pushing the "PLAY" and "OPEN/CLOSE" button, turn on the power of
unit.
(5) Plug in AC CORD.
(6) The indication of "PLAY" and "PAUSE" will be displayed on FL Display.
(7) Please confirm! "NO DISC" on the FL Display, and wait 10 seconds.
(8) Press the buttons on the remote control in the order of "3", "2", "6" and "5".
(9) The version of the firmware will be indicated on the FL Display.
(10) The firmware list will also be shown on connected TV (GUI).
(11) Push the "UP" button of cursor button, version of the each firmware will be
indicated on the FL Display.
______________________________________________________________________________________
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.
8. The version of new firmware

Serial Number Range:
Please apply the above modification to the models in the following serial
numbers. (Full-digits)

***1500001 ~ ***1510159

______________________________________________________________________________________
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.