Service Manuals, User Guides, Schematic Diagrams or docs for : Sony sony tv bulletins sony tv bulletins TVP0503
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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-32XBR400, KV-36XBR400 No. 503
Subject: White Saturation, Loss Of Detail In Bright Date: September 19, 2000
Areas Of Scenes That Are Predominately Dark.
Symptom:
(D325) In bright areas of scenes that are predominately dark, the picture may be excessively
white and/or bright. This may result in a loss of picture detail in the bright areas.
Conditions under which the symptom may appear:
1- In the full screen mode, when playing a 480p source (like progressive-scan DVD).
2- In Twin-View mode, when playing a 480i source on the right-side window while TV,
VIDEO-1, VIDEO-2, VIDEO-3, or VIDEO-4 is selected for the left-side window.
Solution: If the customer complains of this symptom, replace the B-board. B-boards received
from WRPC-AS for service have already had the resistor changes shown below. In
the event that B-boards are out of stock in WRPC-AS, the set's original board can be
updated by making the resistor changes shown below.
REF FORMER NEW
DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER
13 B COMPLETE A-1136-110-A B COMPLETE A-1136-110-A
PC BOARD PC BOARD (SAME AS
(UPDATED FOR ORGINAL PART
SERVICE) NUMBER)
*R3869 RESISTOR, 1-218-694-11 RESISTOR, 1-218-719-11
*R3870 1.2K, 1/16W, 13K, 1/16W,
*R3871 CHIP CHIP
*R3477 RESISTOR, 220 1-218-676-11 RESISTOR, 1-218-701-11
*R3483 OHM, 1/16W, 2.4K, 1/16W,
*R3493 CHIP CHIP
*These parts are only required if the B-board is out of stock in WRPC-AS and you
need to update the set's original B-board.
See the next page for the part mounting locations.
Reference: ECN KVC04309 PRINTED IN USA
TV Products Service Bulletin No. 503
KV-32XBR400/36XBR400
B-board, side B.
R3871
R3493
R3483
R3870
R3477
R3869
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