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100 Corporate Drive Mahwah, NJ 07430
Service Bulletin
No. : OST-803
Date: May 8, 2007
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Model: DVD-9000
Subject: 1) Countermeasure for sound interruption during the playback of a
particular disc.
2) Countermeasure for the Chroma Delay at the Progressive Output.
Symptom: 1) Sound interruption: Upon playing back Queen's "The Game"
(DVD Audio), if the playback continued up to Track #4 after selecting Stereo in
the MENU, the sound interruption occurs in approximately 12 minutes and 20
seconds.
2) Chroma Delay: On the Progressive Output image, the C (color difference)
signal has delayed against the Y (intensity) signal and the color is blurred.
Solution: 1) Sound interruption: The ESS MICON program file has been
improved.
2) Chroma Delay: Changed the circuit and the software so that blurred color
does not occur.
Modification:
1) Hardware (Circuit):
Replace the LP Filters with ones whose group delay time has been improved,
and replace the transistors with ones whose high frequency characteristics is
sufficient.