DOWNLOAD Harman Kardon BDS 275 (serv.man2) Service Manual ↓ Size: 13.97 MB | Pages: 127 in PDF or view online for FREE

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BDS 275 (serv.man2)
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127
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13.97 MB
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EMC - CB Certificate
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Device
Audio
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bds-275-sm2.pdf
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Harman Kardon BDS 275 (serv.man2) EMC - CB Certificate ▷ View online

R
 
AUDIX Technology (Shenzhen) Co., Ltd.
 
 
                                    Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-E12377      page 41 of 323 
 
 
5.2. Block Diagram of Test Setup 
5.2.1.In Anechoic Chamber Test Setup Diagram for 30-1000MHz (at 10m Chamber) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5.2.2.in Anechoic Chamber Test Setup Diagram for 30-1000MHz (at 3m Chamber) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ANTENNA ELEVATION VARIES FROM 1 OR TO 4 METERS 
10m 
TURN TABLE 
(FIBRE GLASS) 
1.5m(L)*1.0m(W)*0.8m(H)
Receiver 
Semi-Anechoic 10m Chamber 
EUT
Combining Network 
AMP 
Spectrum Analyzer
PC System 
0.8m
Antenna Elevation Varies From 1 to 4 m(for Horizontal) 
                                                2 to 4 m (for Vertical) 
3.0m 
Turn Table 
(Wood) 
1.5m(L)*1.0m(W)*0.8m(H)
Receiver 
Semi-Anechoic 3m Chamber 
EUT
Combining Network 
AMP 
Spectrum Analyzer
PC System
(
Reference Point
R
 
AUDIX Technology (Shenzhen) Co., Ltd.
 
 
                                    Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-E12377      page 42 of 323 
 
5.2.3. In Anechoic (3m) Chamber Test Setup Diagram for 1-6GHz 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5.3. Test Standard 
EN55022: 2010 (Class B) and EN 55013: 2001+A1: 2003+A2:2006 
5.4. Radiated Emission Limit 
All emanations from a devices or system, including any network of conductors and 
apparatus connected thereto, shall not exceed the level of field strengths specified below: 
Test Standard: EN55013: 2001+A1: 2003+A2:2006 
DISTANCE 
Source 
(Meters) 
FREQUENCY 
(MHz) 
Limits(dB
μV/m)  
Quasi-Peak 
1000 
Fundamental 60 
30~300 
  Harmonics 52 
Local Oscillator 
300~1000 
  Harmonics 56 
3 30~230 
40 
Other 
3 230~1000 
47 
Note: 
(1) Emission level = Antenna Factor + Cable Loss + Reading 
              (2) The lower limit shall apply at the transition frequencies. 
(3) Distance refers to the distance in meters between the test instrument 
antenna and the closed point of any part of the E.U.T. 
 
 
0.8m
Antenna Elevation Varies From 1 to 4 m 
                                     
3.0m
Turn Table 
(Wood) 
1.5m(L)*1.0m(W)*0.8m(H)
Receiver 
Semi-Anechoic 3m Chamber 
EUT
Combining Network 
AMP
Spectrum Analyzer
PC System 
(
Reference Point
)
ABSORBER
R
 
AUDIX Technology (Shenzhen) Co., Ltd.
 
 
                                    Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-E12377      page 43 of 323 
 
 
 
Test Standard: EN55022: 2010 
FREQUENCY 
(MHz) 
DISTANCE 
(Meters) 
FIELD STRENGTHS LIMITS 
(dB
μV/m) 
30 ~ 230 
10 
30 
230 ~ 1000 
10 
37 
1000~3000 3  70(Peak) 
50(Average) 
3000~6000 3  74(Peak) 
54(Average) 
Note: 
(1) Emission level = Antenna Factor + Cable Loss + Reading 
          Emission level = Antenna Factor -Amp Factor +Cable Loss + Reading 
(above 1000MHz) 
(2) The lower limit shall apply at the transition frequencies. 
 
(3) Distance refers to the distance in meters between the test instrument 
antenna and the closed point of any part of the E.U.T. 
5.5. EUT Configuration on Test 
The configurations of EUT are listed in Section 3.5. 
5.6. Operating Condition of EUT 
Same as Conducted Emission test that is listed in Section 3.6. except the test set up replaced 
by Section 5.2. 
5.7. Test Procedure 
The EUT was placed on a non-metallic table, 80 cm above the ground plane inside a
 
semi-anechoic chamber. An antenna was located 3 & 10 meters from the EUT on an 
adjustable mast. A pre-scan was first performed in order to find prominent radiated 
emissions. For final emissions measurements at each frequency of interest, the EUT were 
rotated and the antenna height was varied between 1m and 4m in order to maximize the 
emission for EN55022. 2m and 4m on vertical for EN55013. Measurements in both 
horizontal and vertical polarities were made and the data was recorded. In order to find the 
maximum emission, the relative positions of equipments and all of the interface cables 
were changed according to EN55013 and EN 55022 Class B on Radiated Disturbance test. 
 
The bandwidth setting on the test receiver (R&S TEST RECEIVER ESVS10&ESCI) is 
120 kHz. 
The resolution bandwidth of the Agilent Spectrum Analyzer E7405A was set at 1MHz.   
The frequency range from 30MHz to 1000MHz was pre-scanned with a peak detector and 
all final readings of measurement from Test Receiver are Quasi-Peak values. 
 
The frequency range from 1GHz to 6GHz was checked and all final readings of 
measurement were with Peak and Average detector, measurement distance was 3m at 
semi-anechoic chamber. The portion of the test volume that was obstructed by absorber 
placed on the floor (30cm maximum). 
 
Finally, selected operating situations at Anechoic Chamber measurement, all the test 
results are listed in section 5.8. 
 
R
 
AUDIX Technology (Shenzhen) Co., Ltd.
 
 
                                    Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-E12377      page 44 of 323 
 
5.8. Radiated Emission Test Results 
PASS. (All emissions not reported below are too low against the prescribed limits.) 
 
For frequency range 30MHz~1000MHz 
The EUT with the following test modes were tested and selected (mode 1~4) to read Q.P 
values, all the test results are listed in next pages. 
 
EUT: BLU-RAY DISC SYSTEM        Model No. : BDS575 
 
Test Date: Jun.30, 2012    Temperature: 24℃    Humidity: 56% 
 
The details of test modes are as follows: 
Reference Test Data No. 
No. Test 
Mode 
Horizontal 
Vertical 
1. ※ 
 BD Live 
#2 
#1 
2.  
FM 88MHz 
#41 
#42 
3. FM 
98MHz 
#44 
#43 
4. FM 
108MHz 
#45 
#46 
  (  Worst test mode)
 
 
For above 1GHz frequency 
The EUT with below test mode 1 was measured within 3m Anechoic Chamber and the test 
results listed in next pages. 
 
All the emissions form 1GHz to 6GHz were PK measured and comply with Average limit, 
so the average levels were deemed to comply with average limit.   
 
Test Date: Jun.30, 2012      Temperature: 24℃          Humidity: 56% 
 
Reference Test Data No. 
No. Test 
Mode 
 Horizontal 
Vertical 
1.  
BD Play  
#40 
#39 
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