Denon dvd-5900 ost-843 Service Manual

Page of 3
 
100 Corporate Drive Mahwah, NJ 07430
 
 
       
 
 
 
Service Bulletin
 
No. : OST-843 
Date:
 May 15, 2007 
_____________________________________________________________
 
 
Model:
 
DVD-5900 
 
 
 
 
 
 
 
 
Subject: 
Countermeasure for improving the unit that is incapable of 
memorizing the SACD Filter setting. 
 
 
 
 
 
 
 
 
 
Symptom:
 The unit is incapable of memorizing the 100kHz setting even 
though the SACD Filter has been set to 100kHz, and it returns to the default 
setting of 50kHz when the Power is turned off. 
 
 
Solution:  
The ESS Microprocessor Software has been corrected.
 
We will supply the following program file for upgrading the Back-end ROM. 
Therefore, please record the file on a blank CD-R and upgrade your customer's 
unit upon claim according to the following procedures.  
• Version of the Program File:  Ver.6334-D  
• Name of the file: D39hsavd.cfw 
 
Modification Procedures: 
1) Record the above Program File on a blank CD-R Disc and create the CD-R 
(Ver.6334-D) for upgrading the Back-end ROM.  
Note: When recording the file on a blank CD-R, the format shall be "ISO9660
and the Session shall be "CLOSE".  
2) Upgrade the System MICON by means of the CD-R (Ver.6542-3) for 
upgrading the System MICON that has been supplied via the OST-831. (Refer to 
the attached Sheet 1.)  
3) Then, use the CD-R (Ver.6334-D) for upgrading the Back-end ROM and 
upgrade the Back-end ROM. (Refer to the Attached Sheet 1.) 
 
 
______________________________________________________________________________________ 
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