Service Manuals, User Guides, Schematic Diagrams or docs for : Sony HiFi Service Bulletin HFP0490

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                                           CONFIDENTIAL                                                  CSA-13
Sony Service Company
National Technical Services                Service Bulletin
A Division of Sony Electronics Inc.
Park Ridge, New Jersey 07656               Hi-Fi Products
Model:           CDP-C235, CDP-C335, CDP-C435, CDP-C535                              No.     490
Subject: Substitution for KSS-390A                                                   Date: June 14, 1996


Symptom:
  (**)                  The Optical Block KSS-390A is no longer available and KSS-240A is supplied as the
                        substitution. As the two parts have some electrical and mechanical differences,
                        please perform the following changes according to the model being serviced.



Solution:               For CDP-C235/335:

                       1. Check the value of R421. If it is 8.2K or less, leave it in circuit. Otherwise,
                          remove it and replace it with a jumper wire.

                        2. Confirm the existence of R423. If it is mounted, remove it. This is needed to keep
                           pin 28 of IC401 High when operating CD function.

                        3. Replace the flat wire which connects the BD Board and Optical Block with the
                           new type listed below.

                            For CDP-C435/535:

                            Just replace the flat cable with the new type. No circuit modifications
                            needed.



                             Description   Part Number           Note

                             Flat Cable    1-575-001-11          This cable must be used with KSS-240A




Reference: T/N # AU-96011 & 12 May 20, 96                                                             PRINTED IN USA

                                                       PRINTED ON RECYCLED PAPER

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