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100 Corporate Drive Mahwah, NJ 07430
Service Bulletin
No. : OST-832
Date: June 6, 2007
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Model: DVD-2910, DVD-955
Subject: Countermeasure for Chroma-delay (color spreads).
Symptom: The color spreads with Component, PAL and HDMI Outputs.
Solution: The Software has been corrected.
MODIFICATION: (Upon claim and/or when it was brought into your Service
facility for any reason.) Record the file onto a blank CD-R disc and upgrade the
Back-end ROM on your customer's unit upon claim, and/or when the unit is
brought into your service facility.
Note: When recording the program File onto a CD-R, the format shall be
"ISO9660" and the session shall be "CLOSE".
Preparation:
1) For the CD-R for rewriting, please record the following program file for the
Back-end ROM on a blank CD-R Disc.
(a.) Program File for the Back-end ROM: Ver.6720-4 Name of the Program File:
D21zsavd.cfw
2) Connect the Image Output Terminal (VIDEO OUT or S-VIDEO OUT) of this
unit to a TV.
Upgrading the Back-end ROM:
1) Turn on the Power of the unit. Press the "OPEN/CLOSE" button of the unit
and open the Disc Tray.
2) Set the CD-R (GEN 6720-4) for rewriting the Back-end ROM to the Disc Tray
and press the "OPEN/CLOSE" button.
(a.) The Disc Tray closes and the upgrading of the software is performed
automatically.
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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.
(b.) Display on the unit indicates "LOADING".
(c.) Indications "ERASE" and "WRITE" are displayed on the TV Screen
repeatedly, and "DONE" is indicated later.
(d.) The Disc Tray opens automatically.
3) After opening the Disc Tray, take out the CD-R (GEN6720-4) for rewriting the
Back-end ROM from the Disc Tray.
Note: Please do not turn off the Power of the unit during the rewriting operation
by means of the CD-R. If the Power was turned off during the rewriting operation,
you have to replace the Flash IC.