SB 30 (serv.man2) - Harman Kardon Audio EMC - CB Certificate (repair manual). Page 41

Report No：W-N-1109009-CY-01-1                                                                                       

 

37 

rd: 

IEC 61000-4-2 

 
Basic Standa

 

Discharge Impedance: 

 

330 ohm / 150 pF 

Discharge Voltage: 

Air Discharge:2kV/4kV/8 Kv (Direct) 
Contact Discharge:2kV/4kV (Direct/Indirect) 

Polarity:   

Positive & Negative 

Number of Discharge: 

Air Discharge: min. 10 times at each test point 
Contact Discharge: min. 25 times at each test point 

Discharge Mode: 

Single Discharge 

Discharge Period: 

 

1 second minimum

 

he test generator necessary to perform direct and indirect application of discharges 

 the EUT in the following manner: 

. Contact discharge was applied to conductive surfaces and coupling planes of the 

UT. 

 t

th single discharges. For the single discharge 

 suc

le discharges was at least 1 second. The EUT shall be 

to a

discharges, 100 each at negative and positive polarity, at a 

st points shall be subjected to at least 50 

er of the front edge of the horizontal coupling plane. 

 receive at least 50 direct contact 

discharges. 
If no direct contact test points are available, then at least 200 indirect discharges 
shall be applied in the indirect mode. Test shall be performed at a maximum 
repetition rate of one discharge per second.   
The selected point, which was performed with electrostatic discharge, please 
refers to the “Photo(s) shown the location(s) of ESD evaluated”. 
Vertical Coupling Plane (VCP): 
The coupling plane, of dimensions 0.5m x 0.5m, is placed parallel to, and 
positioned at a distance 0.1m from, the EUT, with the Discharge Electrode 
touching the coupling plane. 
The four faces of the EUT will be performed with electrostatic discharge. 
Horizontal Coupling Plane (HCP): 
The coupling plane is placed under to the EUT. The generator shall be positioned 
vertically at a distance of 0.1m from the EUT, with the Discharge Electrode 
touching the coupling plane. The four faces of the EUT will be performed with 
electrostatic discharge. 

b. Air discharges at insulation surfaces of the EUT. 

It was at least ten single discharges with positive and negative at the same selected 
point. 

c. For the actual test configuration, please refer to the related Item –EUT Test Photos.

 

T
to
a
E

During the est, it was performed wi
time 
between

cessive sing

exposed 
minimum of four test points. One of the te

t least 200 

indirect discharges to the cent
The remaining three test points shall each