Denon DN-X500, DN-X900 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : PZ10-048 Date: September 29, 2010

_____________________________________________________________

Model: DN-X500, DN-X900

Subject: 1) Change of the Integrated circuit (IC106, IC206, IC306 and

IC406).

2) Modification of the CPU PWB. (For the parts change of IC106, IC206, IC306 and IC406.)

3) Change of the Integrated circuit (IC906). *DN-X900 only.

This is information only.

Symptom: 1) The parts changed from "M51132L" to "R2A15221SP".

2) It is shape changes from "DIP (14pin)" to "SOP (16pin)".

3) The parts changed from "CS8405A-CZZ" to "CS8406-CZZ". (*DN-X900 only)

Cause: 1) Production end of the Integrated circuit.

2) Because there is no parts of the same shape.

3) Production end of the Integrated circuit. *DN-X900 only

Solution:

COUNTERMEASURE:

1) The parts changed from "M51132L (Parts number: 00D9587036103)" to "R2A15221SP (Parts number: 941239003280S)".

2) Change the "CPU PWB".

3) The parts changed from "CS8405A-CZZ (Part number: 00D9587067509)" to "CS8406-CZZ (Part number: 00D9587067509)". (Compatible parts) *The parts number does not change.

Caution!: 1) There is not compatibility before and after the change in parts for

(IC106, IC206, IC306 and IC406) and "CPU PWB".

2) The "CPU PWB" doesn't have the part number for "nsp".

______________________________________________________________________________________

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:

3) Please refer to the attached material for the content after it changes. Integrated circuit spec: Please refer to the material "PZ10-048_IC spec.pdf".

-PWB: Please refer to the material "PZ10-048_CPU PWB.pdf".

-Circuit diagram: Please refer to the material "PZ10-048_SCHEMATIC DIAGRAMS_DNX500.pdf" and "PZ10-048_SCHEMATIC DIAGRAMS_DNX900.pdf".

Parts:

Ref #

FORMER NEW

Description Part Number Description Part Number

IC106,

M51132L 00D9587036103 R2A15221SP 941239003280S

IC206,

IC306 and

IC406

IC906 (DN-

X900 only)

CS8405A-

CZZ

00D9587067509 CS8406-CZZ 00D9587067509

Serial Number Range:

We will apply the above modification to the production models in the following serial numbers. (Full digits)

DN-X500 - 00863*****~ (Production from August 2010) DN-X900 - 00863*****~ (Production from August 2010)

______________________________________________________________________________________

CONFIDENTIALITY NOTICE: