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TVP0253


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                                TV Products                                                           CSV-1
                                Service Bulletin
                                 Sony Service Company - Technical Services
                                 A Division of Sony Electronics Inc.
                                 Sony Drive, Park Ridge, New Jersey 07656


Model: KV-27V55                                                              No.     253
Subject: Part Number of the Circuit Board                                    Date: June 23, 1995


Symptom:
  ()         This model is using different versions of the circuit board. When ordering a
             replacement board, please check serial number of the unit and chart below to
             match the correct part number.

Serial Number and Substitution Chart

                Serial Number       70000017000051                        70000527085106    7085107 and above
                                AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
                                                            AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
                                                            AA                          AA
                                                                                         A
                 Board Name           Part Number                          Part Number         Part Number

                   A Board            A-1297-065-A                          A-1297-065-A       A-1297-432-A
                                     (A-1297-432-A)                        (A-1297-432-A)     (A-1297-065-A)

                   U Board            A-1394-418-A                          A-1394-418-A       A-1394-418-A
                                     (A-1394-562-A)                        (A-1394-562-A)     (A-1394-562-A)

                   H Board            A-1371-883-A                         A-1371-883-A       A-1370-020-A

                   D Board            A-1346-116-A                         A-1346-116-A       A-1346-205-A

                   M Board            A-1306-427-A                          A-1306-427-A      A-1306-474-A
                                     (A-1306-434-A)                        (A-1306-434-A)

                   P Board            A-1195-062-A                         A-1195-062-A       A-1195-062-A

                   C Board                   1                                  1             A-1331-353-A
                                      A-1331-270-A                         A-1331-314-A

Example:       If two part numbers are listed in the same column, the upper number is
               original part number and bottom is the substitution number.

               If you have a model of serial number 7000052 and requires an M board, you
               can use A-1306-434-A instead of original board A-1306-427-A.
               If you need D Board for a model of Serial number 7000052, please use A-1346-
               116-A (original part number only).

Note 1:        Please refer to the other Service Bulletin #194, New C board with no H-STAT
               control.


Reference: M. Matsuoka                                                                             PRINTED IN USA
Autoflagged - YES
                                              PRINTED ON RECYCLED PAPER
Filename:             TVP0253.SB
Directory:            J:\SBDOC\JUN95
Template:             C:\WINWORD\TEMPLATE\S_BULL.DOT
Title:
Subject:
Author:               Hoyt Wing Lee
Keywords:
Comments:
Creation Date:        06/23/95 2:42 PM
Revision Number:      2
Last Saved On:        06/23/95 2:42 PM
Last Saved By:        Hoyt Wing Lee
Total Editing Time:   0 Minutes
Last Printed On:      04/01/96 9:27 AM
As of Last Complete Printing
    Number of Pages: 1
    Number of Words: 261 (approx.)
    Number of Characters:    1,491 (approx.)



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