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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: KP-41T15, 46S15, 53S15, 46V25, 53V25 No. 281R2
KP-61V25, 53XBR45, 61XBR48

Subject: Circuit Improvement to CR, CG, CB Boards Date: April 29, 1996


Symptom:
(111) Unit has no picture (shutdown) and requires IC701, IC731 or IC761 (Video output IC)
replacement.

Parts List: This Service Bulletin is required following additional components:

DESCRIPTION PART NUMBER Q'TY REMARKS

TDA6101Q/N3 8-759-346-42 3
CERAMIC, CAP, 50V, 0.047UF 1-101-006-00 3
CERAMIC, CAP, 500V, 0.01UF 1-102-050-00 3
DIODE, RD13ESB2 8-719-110-36 3
DIODE, 1SS83 8-719-901-83 3
1 OHM, 1/2W, RESISTOR 1-249-474-11 1 SEE S/B TVP 291R1
0.47 OHM, 1/2W, RESISTOR 1-260-288-11 1 SEE S/B TVP 291R1



Solution: 1. Part number of Video output IC had been changed, Please replace all 3 ICs with
new type.

REF FORMER NEW
DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER

IC701 TDA6101Q 8-759-168-72 TDA6101Q/N3 8-759-346-42
IC731
IC761
Note: New IC has marking "3" in the following location. Please check IC type.




(Cont.)

Reference: PTG Kiga PRINTED IN USA

PRINTED ON RECYCLED PAPER
TV Products Service Bulletin No.281R2


2. Please add the following components to CR, CG and CB Boards.

LOCATION OF COMPONENT ADDITIONAL COMPONENT
(IC701, IC731, IC761) DESCRIPTION PART NUMBER
BETWEEN PIN 2 AND 4 CERAMIC, CAP, 50V, 0.047UF 1-101-006-00
BETWEEN PIN 4 AND 6 CERAMIC, CAP, 500V, 0.01UF 1-102-050-00
BETWEEN PIN 2 AND 4 DIODE, RD13ESB2 8-719-110-36

Note: Diode and capacitors above should apply to IC pins directly. Please refer to
illustration on next page.
Some of the above components may have already been added by factory.
Add any that are necessary.

3. Please add following Diode to CR, CG and CB Board.

REF. NUMBER ADDITIONAL COMPONENT
DESCRIPTION PART NUMBER

D715, CR BOARD DIODE, 1SS83TD 8-719-901-83
D735, CG BOARD DIODE, 1SS83TD 8-719-901-83
D767, CB BOARD DIODE, 1SS83TD 8-719-901-83


4. Please apply additional changes for TVP0291R1.