ON STAGE III IIIP (serv.man6) - JBL Audio EMC - CB Certificate (repair manual). Page 11

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                                   Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-E07439      page 11 of 66 
 
 
3.  POWER LINE CONDUCTED EMISSION TEST 
3.1. Test Equipments 
Item Equipment 
Manufacturer 
Model No. Serial No. 
Last Cal. 
Cal. Interval
1.   Test Receiver  Rohde & Schwarz ESHS10 
838693/001 
May 11, 07 1 Year 
2.   L.I.S.N.#1 
Rohde & Schwarz ESH2-Z5 834066/011 
May 11, 07 1 Year 
3.   L.I.S.N.#3 
EMCO 
3825/2 
9006-1660 
May 11, 07 1 Year 
4.  
Terminator 
Hubersuhner 
50
Ω 
No. 1 
May 11, 07 1 Year 
5.   RF Cable 
MIYAZAKI 
5D-2W 
LISN Cable 1# Feb.16, 07  1/2 Year 
6.   Coaxial Switch  Anritsu 
MP59B 
M55367 
Feb.16, 07  1/2 Year 
7.   Pulse Limiter  Rohde & Schwarz ESH3-Z2 100340 
Feb.16, 07  1/2 Year 
3.2.  Block Diagram of Test Setup 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  (EUT: Computer Speaker System) 
 
3.3. Test  Standard 
EN55022: 1998+A1:2000+A2: 2003 
3.4. Power Line Conducted Emission Limit 
Limits dB(
μV) 
 Frequency 
MHz 
Quasi-peak Level 
Average Level 
0.15  ~ 
0.50 
66 ~ 56* 
56 ~ 46* 
0.50 ~  5.00 
56 
46 
5.00 ~ 30.00 
60 
50 
Notes: 1. *Decreasing linearly with logarithm of frequency. 
  2. The lower limit shall apply at the transition frequencies. 
PC  
AC Mains
 
L.I.S.N. #1 
Test Receiver 
Keyboard 
Mouse 
EUT 
AC Mains 
Printer
L.I.S.N. #3 
a: Audio Cable 
b: USB Cable 
 : Core 
a
Adaptor
Modem
Adaptor
Monitor
Headphone 
b
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