Service Manuals, User Guides, Schematic Diagrams or docs for : Sony sony tv bulletins sony tv bulletins TVP0475
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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-32S40, KV-32V40, KV-32S45 No. 475
KV-35S40, KV-35S45
Subject: Service Manual Update Date: March 24, 2000
Symptom:
(1311) The following Service Manual update is being issued since the S/M was written
before the circuit change was made. Therefore the circuit change was not shown in
the Service Manual.
This circuit change to IC501 was implemented from the start of production. To
prevent the following symptom.
If the TV is turned OFF/ON the hold down circuit might not have discharged enough
to release the protection circuit. Thereby the LED would continue to blink and no
picture present.
Solution: A diode D536 was added between the 15-volt line and IC501/pin 8. Also a
47 UF capacitor was added between IC501/pin 4 & 8. The negative side of the
capacitor should be connected to IC501/pin 4.
Ref. Description Part Number
C534 47uf/50v 1-126-967-11
D536 El1Z 8-719-302-43
Reference: TVA A2D2-303 PRINTED IN USA
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