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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: VPL-W400Q No. 472
Subject: LED's Do Not Light Date: February 14, 2000
Symptom:
(1310) LED's (D6015, D6018, D6028) not lighting may be due to damaged Q6006 on the "H"
Board.
Solution: If this symptom should occur please perform the following procedure.
To prevent Q6006 damage (side B, zone B-1) on H board, attach spacer
(H) as shown in Figure 1.
Note: If Q6006 is defective, replace with a new one, (transistor 2SC2712-YG,
P/N 8-729-230-49).
Description Part Number Qty. Serial Number Range
Spacer (H) 4-058-244-01 1 2,000,001-2,000,365
Fig. 1
Reference: SB B & P 301997008 PRINTED IN USA