Service Manuals, User Guides, Schematic Diagrams or docs for : Sony HiFi Service Bulletin HFP0453

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                                  Hi-Fi Products                                               CSA-13
                                 Service Bulletin
                                  Sony Service Company - Technical Services
                                  A Division of Sony Electronics Inc.
                                  Sony Drive, Park Ridge, New Jersey 07656


Model:      MHC-C33, MHC-C55                                                   No.    453
Subject: R503, R504 NEW VALUES                                                 Date: October 26, 1995


Symptom: Discs Jam, or the Unit May Fail to Identify Discs Properly
 (165)



Solution:      If a customer complains of this symptom, replace R503 and R504 (on the O/C SW
               board) with new values to improve the disc detector sensitivity.

                   REF                   FORMER                                       NEW
                            DESCRIPTION          PART NUMBER              DESCRIPTION    PART NUMBER

                  R503          300 ,               1-247-818-11              180 ,         1-247-813-81
                  R504          15K ,               1-249-431-11              33K ,         1-247-867-81



               Note: Units manufactured since June 94 include the new resistors. The serial
               number range is listed below.

               MHC-C33              807075       and up

               MHC-C55              827030       and up




Reference: FPR- Q1330                                                                          PRINTED IN USA

                                              PRINTED ON RECYCLED PAPER
Filename:             HFP0453.SB
Directory:            J:\SBDOC\OCT95
Template:             C:\WINWORD\TEMPLATE\S_BULL.DOT
Title:
Subject:
Author:               Hoyt Wing Lee
Keywords:
Comments:
Creation Date:        10/26/95 11:01 AM
Revision Number:      2
Last Saved On:        10/26/95 11:01 AM
Last Saved By:        Hoyt Wing Lee
Total Editing Time:   0 Minutes
Last Printed On:      04/01/96 10:47 AM
As of Last Complete Printing
    Number of Pages: 1
    Number of Words: 154 (approx.)
    Number of Characters:    882 (approx.)

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