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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-27TW77 No. 255
Subject: Part Number of the Mounted 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 Mounted Board Chart

Serial Number 70000017000022 70000237026262 7026263 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-1394-415-A A-1394-415-A A-1394-415-A

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

D Board A-1346-129-A A-1346-129-A A-1346-192-A

M Board A-1306-427-A A-1306-427-A A-1306-470-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-1331-351-A
A-1331-264-A A-1331-313-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 7000023 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 7000023, please use A-1346-
129-A (original part number only).

Note 1: Please refer to the other Service Bulletin #195, New C board with no H-STAT
control.



Reference: M. Matsuoka PRINTED IN USA
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Audio Products Service Bulletin No. xxx
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Directory: J:\SBDOC\JUN95
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Creation Date: 06/23/95 2:43 PM
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