JBL ON STAGEII (serv.man6) 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
Janurary 5,2006
Harman Multimedia OnStage UD CE Test Report
2006 011114 CE AUS/NZ
33 of 72
Figure 9. Power Line Surge Immunity Test Setup Diagram
NOT TO SCALE
CONFIGURATION LEGEND
1. Test Laboratory
2. AC power for Devices
3. Power strip for associated devices from power line filter
4. Copper Ground Plane
5. Surge Generator
6. Surge Coupling Network
7. Nonconductive tables 80cm above Ground Plane
8. EUT: Computer Speaker System
9. Associated System
3
2
4
7
1
6
5
7
8
9
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
Janurary 5,2006
Harman Multimedia OnStage UD CE Test Report
2006 011114 CE AUS/NZ
34 of 72
3.13.Radio Frequency Conducted Common Mode Immunity: IEC 61000-4-6 (2004)
EN 55024 specifies the IEC 61000-4-6 Standard as the basic standard for radio frequency conducted common
mode disturbance testing. This standard relates to the immunity requirements, test methods, and range of
recommended test levels for immunity to conducted disturbances induced by radio-frequency fields in the 150
kHz to 80 MHz frequency range. The standard configuration as outlined in the IEC 61000-4-6 (2004)
was used. For further information, please refer to the technical sections of the IEC 61000-4-6 (2004)
publication in addition to the test results section and photographs of the test set-up provided in this report.
For RF induced conducted common mode disturbances, EN 55024 specifies that the EUT meet at least
performance Criterion A for 3 Vrms, 1 kHz, 80% amplitude modulated waveform.
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
Janurary 5,2006
Harman Multimedia OnStage UD CE Test Report
2006 011114 CE AUS/NZ
35 of 72
Figure 10. RF Common Mode Immunity Test Setup Diagram
NOT TO SCALE
CONFIGURATION LEGEND
1. Test Laboratory
2. DC power for EUT
3. Ground Plane
4. 10cm wooden Platform
5. Test Generator
6. Current Probe
7. Coupling/Decoupling Network
8. Coupling/Decoupling Network
9. EUT: Computer Speaker System
10. Associated System
2. DC power for EUT
3. Ground Plane
4. 10cm wooden Platform
5. Test Generator
6. Current Probe
7. Coupling/Decoupling Network
8. Coupling/Decoupling Network
9. EUT: Computer Speaker System
10. Associated System
1
2
9
6
5
7
10
3
4
8
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
Janurary 5,2006
Harman Multimedia OnStage UD CE Test Report
2006 011114 CE AUS/NZ
36 of 72
3.14.Power Frequency Magnetic Field Immunity: IEC 61000-4-8 (2001)
EN 55024 specifies Part 8 of the IEC 61000-4-8 Standard as the basic procedure for testing apparatus
containing devices susceptible to magnetic fields, e.g. Hall Effect sensors, electrodynamic microphones, etc.,
and to CRT’s. The standard configuration as outlined in the IEC 61000-4-8 was used. A ground plane was
placed inside a Helmholtz coil and at a height of 80cm. The monitors from the EUT were removed and placed
on 10cm wood blocks on the ground plane with I/O cables extended to the EUT. For further information,
please refer to the technical sections of the IEC 61000-4-8 in addition to the test results section and
photographs of the test set-up provided in this report.
For power-frequency magnetic field immunity tests, EN 55024 requires that the EUT meet at least
performance Criterion A using a Helmholtz Coil at 50 Hz, to a field strength of 30 amperes (rms) per meter.
For Power-Frequency Magnetic Field Immunity Test Configuration please refer to Figure 10 on the next page.
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