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100 Corporate Drive Mahwah, NJ 07430
Service Bulletin
No. : OST-843
Date: May 15, 2007
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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.