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

Model: KV-27V42 No. 439R1
Subject: Buzz in Audio Date: June 8, 2000


Symptom:
(1545) Buzz in audio.



Solution: If the customer should complain of the symptom above please add the following.

On the "A" Board add jumper JW637.

Add a .47uf/50v capacitor P/N 1-126-959-11 Between IC/401/pin 4 & 6. The positive
side of the capacitor should be connected to IC401/pin 4.



JW637
location
Grid location




Add .47 uf cap to
IC401/pin 4 & 6.




Reference: V. Ramirez STE PRINTED IN USA