Denon DN-D4500, BU4500 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : PZ10-025
Date: October 20, 2010

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Model: DN-D4500, BU4500

Subject: Software update

Symptom: The CD tray might not open even when you turn ON the power of

the unit.

Solution:

F/W Ver.13: D4042013.BIN

SystemVersion.0042, DSP Version.0013
*For update procedures, please see service manual.

*Please mark "Y" on the version sheet after completing this firmware update.

We corrected the firmware so that no malfunction occurs.

Serial Number Range:

Please apply the above modification to the models in the following serial
numbers.

Indication of the version label is "Z" and "None".

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