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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. 459
Subject: Prevention of current leakage from power Date: February 2, 2000
supply board
Symptom:
(XXXX) Due to the accumulation of dust and debris after extensive use, current leakage from
power supply board may occur.
Solution: As a preventive measure, perform the following procedure
1. Trim all pins on CN8008 on the GA board to <1-mm.
2. Trim all pins of CN7002 on the GB board to <1mm.
3. Clean pins, removing dust and debris.
4. Apply RTV to the terminals to prevent dust and debris from accumulating.
Reference: SB B&P 301999220 PRINTED IN USA