DOWNLOAD Harman Kardon HS 300 (serv.man3) Service Manual ↓ Size: 3.49 MB | Pages: 82 in PDF or view online for FREE

Model
HS 300 (serv.man3)
Pages
82
Size
3.49 MB
Type
PDF
Document
EMC - CB Certificate
Brand
Device
Audio
File
hs-300-sm3.pdf
Date

Harman Kardon HS 300 (serv.man3) EMC - CB Certificate ▷ View online

 
 
Report No. JSH006030124-001 
Page 48 of 81  
10.6 Test protocol 
Pass 
 
Inject 
Frequency (MHz) 
Sound (dBuV) 
Picture (dBuV) 
Audio out 
0.15  - 150.00 
“*” means margin > 6 dB 
 
 
11. Immunity requirements for a.c. mains power connectors (S2a) 
11.1 Test result 
 
           Pass               Fail              Not Applicable 
11.2 Operating environment 
 
Temperature:                           22
°C  
Relative Humidity:                  40%  
11.3 Test set-up 
The wanted test signal is supplied by generators G1,G2,G3 and G4, via the respective connections A or 
V or S or T and the unwanted signal is supplied by generator G5. Network RCi matches the RF 
disturbance source to the input impedance of the relevant audio terminal and a similar network Rco is 
used to match the output terminals. Mains stop filter MSF is used to inject the unwanted signal at the 
mains terminal and acts as a stop filter for unwanted signals from the mains network. 
 The equipment under test is placed 0.1m above the centre of a metal ground plane of dimensions 2m 
by 1m. The mains lead shall be bundled to a length less than 0.3m and connected in the shortest 
possible 
way to the mains stop filter MSF. The connection between the metal ground plane and the shield of the 
RF cable at the audio input and output terminals shall be as short as possible.  
The connecting cables are of the 50
Ω coaxial type. 
The unwanted signal was amplitude modulated with 1kHz at 80% depth, supplied by generator G5. 
 
11.3.1  Photo For test Set-up 
        none 
11.4 Performance Criterion : A 
11.5 Figure for test set up  
 
 
 
Report No. JSH006030124-001 
Page 49 of 81  
 
 
Report No. JSH006030124-001 
Page 50 of 81  
 
11.6 Test protocol 
 
Inject Frequency(MHz) 
Sound(dBuV) 
Picture(dBuV) 
Mains 0.15-150.00  * 
“*” means margin > 6 dB 
 
12. Immunity requirements for the enclosure port (S3) 
12.1 Test result 
 
           Pass               Fail              Not Applicable 
12.2 Operating environment 
 
Temperature:                           22
°C  
Relative Humidity:                  30%  
12.3 Test set-up 
 
The stripline was placed on non-metallic supports 0.8m from the floor, and the top conductor 
plate was no closer than 0.8m from the ceiling. 
The equipment under test is placed on a non-metallic support 0.1m high, in the centre of the stripline in 
the same position as for normal home usage. 
Connecting leads to the equipment under test are inserted through holes in the base conductor plate of 
the stripline, the length of the leads inside the stripline is as short as possible and completely 
surrounded by ferrite rings to attenuate induced currents. 
The mains lead is bundled to a length less than 30cm. 
Terminals of the equipment under test not used during the measurement are terminated with shielded 
resistors matching the nominal terminal impedance.
 
 
12.3.1  Photo For test Set-up 
 
none 
 
 
 
Report No. JSH006030124-001 
Page 51 of 81  
12.3.2  Figure For test Set-up 
Page of 82
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