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CONFIDENTIAL CSA-14
Sony Service Company
National Technical Services Service Bulletin
A Division of Sony Electronics Inc.
Park Ridge, New Jersey 07656 Car Stereo
Model: EXR-11, XR-1400 No. 401
Subject: SOUND LEVEL IS LOW IN ONE CHANNEL Date: July 3, 1996

Symptom:
(152) The sound level is low in either the Left or Right channel. The symptom may occur in
some models due to a defective variable resistor.

Solution: If this problem is found to be caused by a defective RV503, remove it and replace it
with a new one.

REF FORMER NEW
DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER

RV503 RESISTOR, 1-223-818-11 RESISTOR, 1-223-818-11
VARIABLE VARIABLE

Reference: ME-96008 PRINTED IN USA

PRINTED ON RECYCLED PAPER