ON STAGE (serv.man5) - JBL Audio EMC - CB Certificate (repair manual). Page 9

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Nemko USA, Inc. 
11696 Sorrento Valley Road, Suite F, San Diego, CA  92121 
Phone (858) 755-5525  Fax (858) 452-1810 
DATE 
DOCUMENT NAME 
DOCUMENT # 
PAGE 
May 21, 2004 
Harman Multimedia  JBL OnStage   EMC Test Report 
2004 050310 EMC 
 
9 of 80 
 
 
2.3.  Description and Method of Exercising the EUT 
 
The  JBL OnStage is a  Speaker System.  Its function is a cradle for the I-Pod for stand alone music or  interface 
with a computer. The EUT was exercised by playing music through the cradle speaker system.  It was 
monitored by listening to the audio output.  If the EUT audio is interrupted or degraded during Immunity 
testing that would be considered a failure. 
 
2.4.  Design Modifications for Compliance 
 
Device: Speaker System 
Model:  JBL OnStage 
 
The following design modifications were made to the EUT during testing. 
 
Added ESD suppression chip(part#0603ESDA by Cooper Bussman) to touch pad lines.  One for the 
"+" volume line and one for the "-" volume line.. 
 
Nemko USA, Inc. recommends a safety review be completed in reference to the above-listed design 
modification.  The purpose of this review is to ensure that no safety issues are introduced as a result of these 
design modifications. 
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