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Car Stereo CSA-14
Service Bulletin
Sony Service Company - Technical Services
A Division of Sony Electronics Inc.
Sony Drive, Park Ridge, New Jersey 07656
Model: XM-4525 No. 378
Subject: Power Supply Noise Heard Through Speakers. Date: September 13, 1995
Symptom:
(54) Noise generated by the power supply may be heard through the speakers.
This problem may be caused by C904 being defective.
Solution: If the customer complains of this problem check C904 on the Main board
and replace it if it is found to be defective. Note that the polarity indicator
silkscreened on the board is incorrect. The capacitor must be installed with
polarity opposite that which is silkscreened on the board.
REF DESCRIPTION PART NUMBER
C904 CAPACITOR, ELECTROLYTIC, 1-126-044-11
1uF, 20%, 50V
Applicable serial numbers: up to 19,600
Reference: Technical News ME-95013 PRINTED IN USA
Autoflagged - NO
PRINTED ON RECYCLED PAPER
Filename: CAR0378.SB
Directory: J:\SBDOC\SEP95
Template: C:\WINWORD\TEMPLATE\S_BULL.DOT
Title:
Subject:
Author: Hoyt Wing Lee
Keywords:
Comments:
Creation Date: 09/13/95 11:23 AM
Revision Number: 2
Last Saved On: 09/13/95 11:23 AM
Last Saved By: Hoyt Wing Lee
Total Editing Time: 1 Minute
Last Printed On: 04/01/96 11:04 AM
As of Last Complete Printing
Number of Pages: 1
Number of Words: 159 (approx.)
Number of Characters: 911 (approx.)