JBL ON STAGE (serv.man5) EMC - CB Certificate ▷ View online
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.
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.
o
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.
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
10 of 80
3. DESCRIPTION OF TEST SITE AND EQUIPMENT
3.1. Description of Test Site
The test site is located at 11696 Sorrento Valley Road, Suite F, San Diego, CA 92121. The site is physically
Ocean. This particular part of the valley tends to minimize ambient levels, i.e. radio and TV broadcast stations
and land mobile communications. The three and ten-meter Open Area Test Site (OATS) is located behind the
office/lab building. It conforms to the normalized site attenuation limits and construction specifications as set
in the EN 55022 (1998)A1, CISPR 16 (2003) and ANSI C63.4 (2001) documents. The OATS normalized site
attenuation characteristics are verified for compliance every year.
4. DESCRIPTION OF TESTING METHODS
4.1. Introduction
Nemko USA, Inc. is accredited to ISO/IEC 17025 by the National Voluntary Laboratory Accreditation Program
(NVLAP) for Electromagnetic Compatibility and Telecommunications testing. Part of the accreditation process
involves the demonstration of competence in various test methods.
Prior to the beginning of work, Nemko personnel work with their clients to ensure the proper test standards and
test methods are utilized. Applicable tests and the minimum criteria for a pass condition are listed in the
administrative section of this report.
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
11 of 80
Photograph 1. General EUT Test Configuration
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
12 of 80
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