Service Manuals, User Guides, Schematic Diagrams or docs for : Sony HiFi Service Bulletin HFP0452

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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:      TA-AV531, TA-AV631X                                                No.       452
Subject: Resistors Missing on Main PC Board                                    Date: November 10, 1995


Symptom:
 (****)        During the production phase of the TA-AV531 and TA-AV631X, R743 and R744 may
               not have been installed* on the Main PC board.



Solution:      When a TA-AV531 or 631X is in for service, for any reason, verify that R743 and
               R744 have been mounted on the main board. If not already installed, mount the
               resistors on the board. If you must replace the Main PC board on either of the above
               models, check the board for missing resistors before installing. The part numbers for
               the main boards are A-4360-464-A (TA-AV531), and A-4365-074-A (TA-AV631X).
               The resistor part numbers are listed below.

                   REF                DESCRIPTION                         PART NUMBER

                  R743             47K OHM RESISTOR                       1-249-465-11

                  R744             3.3K OHM RESISTOR                      1-247-719-11


               *Applicable serial number range:            TA-AV531 ~ 8858001 - 8866801

                                                           TA-AV631 ~ 8810701 - 8814801




Reference: Tokyo Fax A0501201                                                                  PRINTED IN USA
Autoflagged - YES
                                              PRINTED ON RECYCLED PAPER
Filename:             HFP0452.SB
Directory:            J:\SBDOC\NOV95
Template:             C:\WINWORD\TEMPLATE\S_BULL.DOT
Title:
Subject:
Author:               Hoyt Wing Lee
Keywords:
Comments:
Creation Date:        11/10/95 11:48 AM
Revision Number:      2
Last Saved On:        11/10/95 11:48 AM
Last Saved By:        Hoyt Wing Lee
Total Editing Time:   0 Minutes
Last Printed On:      04/01/96 10:14 AM
As of Last Complete Printing
    Number of Pages: 1
    Number of Words: 195 (approx.)
    Number of Characters:    1,113 (approx.)

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