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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: XR-U500/U700/U800 No. 343
Subject: Switching Noise Heard From Speakers While Date: November 18, 1994
Volume Is Being Increased Or Decreased.


Symptom:
(54) Switching noise may be heard from the speakers while the volume level is being
increased or decreased. The noise is particularly noticeable when high power
amplifiers or high efficiency speakers are connected to the unit.



Solution: If the customer complains of this problem, remove R126, R128, R226, and R228
from the Main board. On XR-U800, also remove R151 and R251.




Reference: Technical News ME-94010 PRINTED IN USA
Autoflagged - NO
PRINTED ON RECYCLED PAPER
Audio Products Service Bulletin No. xxx
Filename: CAR0343.SB
Directory: J:\SBDOC\NOV94
Template: C:\WINWORD\S_BULL.DOT
Title:
Subject:
Author: Hoyt Wing Lee
Keywords:
Comments:
Creation Date: 11/18/94 2:42 PM
Revision Number: 2
Last Saved On: 11/18/94 2:42 PM
Last Saved By: Hoyt Wing Lee
Total Editing Time: 1 Minute
Last Printed On: 04/01/96 10:02 AM
As of Last Complete Printing
Number of Pages: 2
Number of Words: 141 (approx.)
Number of Characters: 809 (approx.)