DOWNLOAD Harman Kardon DVD 30 Service Manual ↓ Size: 695.72 KB | Pages: 30 in PDF or view online for FREE

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DVD 30
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30
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695.72 KB
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EMC - CB Certificate
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dvd-30.pdf
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Harman Kardon DVD 30 EMC - CB Certificate ▷ View online

 
Test report no. 305945I
Page 7 (12)
 
Photos of the EUT showing the location of the selected test points. 
 
 
 
 
Front side (3) display, control buttons, phones outlet and cover 
 
 
 
 
Rear side (1) in- and outlet reachable metal (2) in –and outlet, cover 
 
 
Test report no. 305945I
Page 8 (12)
 
 
5.4 Measurement uncertainty 
 
The uncertainty of the applied electrostatic discharges is within the tolerance specified by the standard. 
 
 
5.5 Test equipment 
 
Equipment Manufacturer 
Type  SEMKO 
No. 
 
ESD-generator: 
Schaffner 
NSG 435 ESD simulator 
5854 
Discharge tip: 
Schaffner 
Air discharge 
8938 
 Schaffner 
Contact 
discharge 
9105 
 
Reference ground plane 
 
Aluminium: 3,5 m x 3,0 m x 1,5 mm 
Horizontal coupling plane 
Aluminium: 1,6 m x 0,8 m x 1,5 mm 
Vertical coupling plane 
Aluminium: 0,5m x 0,5 m x 1,5 mm 
 
 
5.6 Test protocol 
 
Date of test: 10 June, 2003 
 
Test point 
Test level 
[kV] 
Air/ 
Contact 
Polarity
(+/-) 
Pass/ 
Fail 
Comment 
HCP 1-4 
Contact 
+/- 
Pass 
VCP 1-4 
Contact 
+/- 
Pass 
1 4 
Contact 
+/- 
Pass 
2 8 
Air 
+/- 
Pass 
3 8 
Air 
+/- 
Pass 
 
 
 
 
Test report no. 305945I
Page 9 (12)
 
6.  IMMUNITY TO RADIATED ELECTROMAGNETIC FIELDS, EN 61000-4-3 
 
6.1 Operating environment 
 
The test was performed in a semi-anechoic shielded chamber. 
 
Temperature: 21 
°C 
Relative Humidity: 
49  % 
 
 
6.2 Test set-up 
 
The EUT was placed on a non-metallic table 0,8 m above the reference ground plane and was operated 
according to its specified operating mode. 
 
Ferrite tiles/absorbers were placed on the RGP between the EUT and the antenna to reduce the reflections 
from the RGP. The cables were exposed for the electromagnetic field for 1 m vertically and 1 m horizontally. 
 
Photos of the test set-up. 
 
 
 
 
 
Test report no. 305945I
Page 10 (12)
 
6.3 Generation of the electromagnetic field 
 
The electromagnetic field is generated from a computer controlled signal generator. The output power is 
amplified and then radiated from broad band log periodic antennas. For each sweep a pre-recorded empty 
chamber calibration file is used to establish the required field strength. When using these files the field 
strength inside an area of 1,0 m x 1,5 m is in accordance with the standard. 
 
 
6.4 Test conditions 
 
Test level: 
3 V/m, 50 % duty cycle, 200 Hz rep. frequency 
 
Frequency range: 
895 MHz - 905 MHz 
 
Performance criterion: 
 
Frequency step: 
5 MHz 
 
Dwell time at each frequency: 
15 s 
 
Field orientation: 
Horizontal and vertical 
 
Antenna distances: 
1,8 m  
 
Exposed sides: 
Front and rear 
 
 
6.5 Measurement uncertainty 
 
The measurement uncertainty is: ± 2,4 dB. 
Measurement uncertainty is calculated in accordance with EA-4 /02:1997. The measurement uncertainty is 
given with a confidence of 95%. The uncertainty calculations exclude influence of phenomena like 
inhomogenity of the electric field intensity. 
 
 
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