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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: FDL-250T No. 509
Subject: UHF Red Bar Display Bent Date: November 27, 2000
Symptom:
(113X) UHF red channel bar becomes bent as volume is increased.
Solution: If the customer should complain of the symptom above please perform the following.
Serial number range affective 4000001 through 4004700
Ref Schematic Description Description P/N
Location Former New
C625 I-5 Not used originally 10uf/6,3v 1-104-851-11
R010 F-7 27 Ohm 10 Ohm 1-216-001-00
R613 I-5 10K 1/16W 22K 1/16W 1-216-837-11
R614 I-5 10K 1/16W 22K 1/16 W 1-216-837-11
Change R613 & R614 to22K
1/16W
J601
Add 10uf cap between Q604 base (+)
and ground (-)
Reference: Masaaki, Koike PRINTED IN USA
TV Products Service Bulletin No. 509
R010
Change to
10 ohm
J601
Add to the base of Q604 a
10uf/6.3v capacitor.
Positive end of capacitor to
base of Q604
R613 & R614 Change
to 22K 1/16 Watt