Denon DVD-5900 Service Bulletin OST800

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : OST-800
Date:

May 14, 2007

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Model: DVD-5900

Subject: 1) Countermeasure for the malfunction upon playback of particular

discs. 2) Countermeasure for the malfunction on the DVI Indication Area.

Symptom: 1) Sound interruption occurs upon playing back the following discs.

(1) Upon playback of DVD Audio, "Rainbow/Ayumi Hamasaki", sound
interruption occurs.
(2) Upon playback of DVD Audio, such as "Fragile/Yes", "Sinatra at the

sands/Frank Sinatra", "A Night at the opera/Queen" and "Symphony No.
6/Beethoven", sound interruption occurs between the Tracks.

(3) Digital Noise is audible upon performing fast-forward or fast-backward
operation of DVD Audio "Violin Concertos/W. A. Mozart"
(4) Upon playback of DVD Video "Stewart Little II", image noise like lines
appears horizontally on the right side of the Picture, around the Chapter
50:15:24.

2) Outer edges of the Picture appear like a framework when the DVI connectable
DLP Projector VP-12S-2 manufactured by MARANTZ was connected to the
subject models in the DVI connection.
For example:

• At 480P Output: The upper edge and bottom edge portions on the Picture
appear like Red lines.

• At 720P/1080i Output: Four sides of the Picture look like a black frame. In
720P, the right side appears widely, and in 1080i, the left side appears widely.

Solution: The firmware for rewriting the Back-end MICON has been updated.

By changing the Program Software at this time, the following malfunction can
also be improved.

______________________________________________________________________________________

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:

• Improving the malfunction of the DVI Black Level, i.e., the Black Level appears
to be unbalanced depending on the Display used, even if the DVI BK Level was
set to "ENHANCED".
Please record the file onto a CD-R or CD-RW disc, and apply the following
modification to your customer's unit when it is brought into your service bench
due to some other reasons or upon claim.

• Before the modification, please be sure to confirm the Version of the Back-end
MICON. To confirm the Version, please refer to the next page item #2)-(2).

• If the Version was ESS 6334-1, refer to the OST-789 and apply the modification
in the OST-789 according to the items (3) ~ (5) in item #2), Details of the Working
Contents. (Replacement of chip type resistors)

Note: When applying the modification in OST-789 to the above models, please
be sure to apply this modification to those models simultaneously.

1) Working Procedures:
(1) Rewrite the Back-end ROM.
(2) Confirmation of the Version.
(3) Confirmation of the actual operation.

Cautions upon rewriting the Back-end MICON by means of the CD-R or CD-RW
disc:

• Please do not turn off the Power of the unit during the rewriting operation. If the
Power was turned off during the operation, you have to replace the Flash IC104.

• During the rewriting operation, if the Indication does not turn into "DONE", and
the "READING" or other indications remained displaying, wait for more than two
minutes after closing the Loader. Then, turn off the Power of the unit and start
the rewriting operation from the beginning.

Note: If the Flash IC was damaged, please order a new IC, and replace the
IC104 for Back-end with the new one.
After the replacement of IC104, please be sure to rewrite the software program in
the IC104 according to this Service Information.

Note: Upon recording the Program File on a CD-R or CD-RW, the format shall be
"ISO9660", and the session shall be "CLOSE".

______________________________________________________________________________________

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: