Denon DVD-3910 Service Bulletin OST-833

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : OST-833 Date:

May 23, 2007

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Model: DVD-3910

Subject: Countermeasure for the malfunctions that the color spreads a little,

etc. (Chroma-delay)

Symptom: 1) The color spreads upon Component, PAL and HDMI Outputs.

2) When the H Position was switched from +6 to +7, the synchronization deviates and the picture disappears momentarily.

3) In the Component Output of the Progressive, a white belt appears under the screen when it was switched to the squeeze mode.

Solution:

MODIFICATION: (Upon claim, and when it was brought in to your service bench.) Record the file on a blank CD-R disc and upgrade the Back-end ROM on the customer's unit when the set arrives for service, and/or upon claim.

Note: When recording the program File onto the CD-R, the format shall be "ISO9660" and the session shall be "CLOSE".

Preparation: 1) Please record the following program file for the Back-end ROM update onto a blank CD-R Disc. (1) Program File for the Back-end ROM: Ver.6609-5 Name of the Program File: D31zsavd.cfw

2) Connect the Image Output Terminal (VIDEO OUT or S-VIDEO OUT) of this unit to a TV.

The Software has been corrected.

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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:

Updating 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 (GEN6609-5) 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. (b.) Display on the unit indicates "LOADING". (c.) Indications "ERASE" and "WRITE" are indicated 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 (GEN6609-5) 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 will have to replace the Flash IC.

• If "READING" indication remains, and it does not change into "DONE", wait for more than two minutes after closing the Disc Tray and turn off the Power of the unit once. Then, start the rewriting operation from the beginning again.

4) Confirmation of the Version: (1) Turn off the Power of the unit once. While holding the "PLAY" and "OPEN/CLOSE" buttons down simultaneously, turn on the Power of the unit. (2) After " >|| " mark is indicated on the FL Display, press numeral buttons "3", "2", "6" and "5" on the Remote Control. (3) The following Version appears every time the MENU button on the Remote Control is pressed. Confirm the Version.

• Version: ESS 6609-5, MAKE DAY 831

5) Markings:

• DVD-3910: Stamped two pieces of black rings 8mm in diameter to the right side of the Control Card. (OO marks: On both sides, four places in total.)

Serial Number Range:

1) In respect to the malfunction that the color spreads a little upon Composition, PAL and HDMI Outputs: (Chroma Delay)

(Last five-digit) DVD-3910(black) Up to 03500 DVD-3910(silver) Up to 00600

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CONFIDENTIALITY NOTICE:

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