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Report No.: SUTE0703025

Shenzhen Unitech Technology Co., Ltd. of 32

EMC TEST REPORT

For

Cherub Technology Company Limited Multi Guitar Effects

Model No. : NUX-07 Prepared for : Cherub Technology Company Limited Unit D, 8/F, Nanshan Bldg, No.15 Industry Rd, Shekou, Shenzhen, China Prepared By : Shenzhen Unitech Technology Co., Ltd 9/F, Daxin Bldg, Nanxin Rd., Nanshan, Shenzhen, China Tel : (0755) 26085878~9, 26087900 Fax : (0755) 26089849 E-mail : [email protected] Report No. : SUTE0703025 Date of Test : March 15-28, 2007 Date of Rep. : March 30, 2007

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TABLE OF CONTENT

Description Page Test Report Declaration 1. GENERAL INFORMATION ............................................................................................. 5

1.1 Description of Device (EUT) .................................................................................................5 1.2 Test Facility .............................................................................................................................6 1.3 Test Uncertainty .....................................................................................................................6

2. TEST INSTRUMENT USED ............................................................................................ 7 2.1. For Conducted Emission Test（A） ...................................................................................7 2.2. For Radiated Emission Test （A）.....................................................................................7 2.3. For Harmonic / Flicker Test（B）........................................................................................7 2.4. For Electrostatic Discharge Immunity Test（B）..............................................................7 2.5. For RF Field Strength Susceptibility Test（B）................................................................7 2.6. For Electrical Fast Transient/Burst Immunity Test（B） .................................................8 2.7. For Immunity Test (TS9980 Test System) （B）.............................................................8 2.8. For Immunity Test For 900 MHz RF E.M. Field Test（B） .............................................8

3. POWER LINE CONDUCTED EMISSION TEST .......................................................... 9 3.1. Block Diagram of Test Setup................................................................................................9 3.2. Test Standard .........................................................................................................................9 3.3. Power Line Conducted Emission Limit ...............................................................................9 3.4. EUT Configuration on Test ...................................................................................................9 3.5. Operating Condition of EUT ...............................................................................................10 3.6. Test Procedure .....................................................................................................................10 3.7. Power Line Conducted Emission Test Results ...............................................................10

4. DISTURBANCE POWER TEST ................................................................................... 11 4.1. Block Diagram of Test Setup..............................................................................................11 4.2. Test Standard .......................................................................................................................11 4.3. Disturbance Power Limit .....................................................................................................11 4.4. EUT Configuration on Test .................................................................................................11 4.5. Operating Condition of EUT ...............................................................................................12 4.6. Test Procedure .....................................................................................................................12 4.7. Disturbance Power Test Result .........................................................................................12

5. HARMONIC CURRENT EMISSION TEST ................................................................. 13 5.1. Block Diagram of Test Setup .............................................................................................13 5.2. Test Standard .......................................................................................................................13 5.3. Operating Condition of EUT ...............................................................................................13 5.4. Test Results ..........................................................................................................................13

6. VOLTAGE FLUCTUATIONS & FLICKER TEST....................................................... 14 6.1. Block Diagram of Test Setup ..............................................................................................14 6.2. Test Standard .......................................................................................................................14 6.3. Operating Condition of EUT ...............................................................................................14 6.4. Test Results ..........................................................................................................................14

7. MEASUREMENTS OF INPUT IMMUNITY.................................................................. 15

8. IMMUNITY TEST FROM CONDUCTED CURRENTS .............................................. 16

9. IMMUNITY TEST FROM CONDUCTED VOLTAGES .............................................. 17

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9.1. Block Diagram Of Test Setup .............................................................................................17 9.2. Test Standard .......................................................................................................................17 9.3. Limits of Immunity from Conducted Voltages ..................................................................17 9.4. EUT Configuration On Test ................................................................................................18 9.5. Operating Condition Of EUT ..............................................................................................18 9.6. Test Procedure .....................................................................................................................18 9.7. Test Results ..........................................................................................................................18

10. IMMUNITY TEST FROM RADIATED FIELDS ........................................................ 19 10.1. Block Diagram Of Test Setup ...........................................................................................19 10.2. Test Standard ......................................................................................................................19 10.3. Limits of Immunity from Radiated Fields .........................................................................19 10.4. EUT Configuration on test.................................................................................................19 10.5. Operating Condition of EUT..............................................................................................20 10.6. Test Procedure ...................................................................................................................20 10.7. Test Results ........................................................................................................................20

11. MEASUREMENT OF SCREENING EFFECTIVENESS ........................................ 21

12. IMMUNITY TEST FOR 900MHZ RF E.M. FIELD ................................................... 22 12.1. Block Diagram of Test Setup............................................................................................22 12.2. Test Standard .....................................................................................................................22 12.3. Severity Levels and Performance Criterion ....................................................................22 12.4. EUT Configuration On Test ..............................................................................................22 12.5. Operating Condition Of EUT.............................................................................................23 12.6. Test Procedure ...................................................................................................................23 12.7. Test Results ........................................................................................................................23

13. ELECTROSTATIC DISCHARGE TEST ................................................................... 24 13.1. Block Diagram of Test Setup............................................................................................24 13.2. Test Standard .....................................................................................................................24 13.3. Severity Levels and Performance Criterion ....................................................................24 13.4. EUT Configuration on Test ...............................................................................................25 13.5. Operating Condition of EUT .............................................................................................25 13.6. Test Procedure ...................................................................................................................25 13.7. Test Results ........................................................................................................................25

14. ELECTRICAL FAST TRANSIENT/BURST TEST .................................................. 27 14.1. Block Diagram of the EUT ................................................................................................27 14.2. Test Standard.....................................................................................................................27 14.3. Severity Levels and Performance Criterion ...................................................................27 14.4. EUT Configuration on Test ..............................................................................................28 14.5. Operating Condition of EUT ............................................................................................28 14.6. Test Procedure ..................................................................................................................28 14.7. Test Results .......................................................................................................................28

15. PHOTOGRAPH OF TEST .......................................................................................... 30 15.1. Photo of Power Line Conducted Emission Test ...........................................................30 15.2. Photo of Disturbance Power Test ...................................................................................30 15.3. Photo of Immunity Test from Conducted Voltages Test..............................................31 15.4. Photo of Immunity Test from Radiated Test .................................................................31 APPENDIX I ---------------- Power Line Conducted Emission Test Data APPENDIX II --------------- Disturbance Power Test Data APPENDIX III --------------- Immunity Test From Conducted Voltages Test Data APPENDIX IV -------------- Immunity Test From Radiated Fields Test Data APPENDIX V --------------- Photographs of the EUT

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TEST REPORT DECLARATION

Applicant : Cherub Technology Company Limited Manufacturer : Cherub Technology Company Limited. EUT Description : Multi Guitar Effects

(A) Model No. : NUX-07

(B) Serial No. : E2007030901

(C) Power Supply : AC 230V 50Hz

Test Procedure Used:

EMI: EN55013: 2001+A1: 2003, EN61000-3-2: 2000, EN61000-3-3: 1995+A1: 2001 +A2: 2005

EMS: EN55020: 2002+A1: 2003 + A2: 2005

The device described above has been tested by Shenzhen Unitech Technology Co., Ltd. to determine the maximum emission levels emanating from the device, the severe levels that the device can endure and EUT’S performance criterion. The test results are contained in this test report. Shenzhen Unitech Technology Co., Ltd is assumed of full responsibility for the accuracy and completeness of these tests. Also, this report shows that the EUT is technically compliant with the EN55013, EN61000-3-2, EN61000-3-3 and EN61000-6-1 requirements.

This report applies to above tested sample only and shall not be reproduced in part without written approval of Shenzhen Unitech Technology Co., Ltd.

Date of Test: March 15-28, 2007 Prepared by: Assistant Engineer Reviewer: Project Engineer Approved & Authorized Signer:

Project Manager

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1. GENERAL INFORMATION

1.1 Description of Device (EUT)

Description : Multi Guitar Effects Model Number : NUX-07 Applicant : Cherub Technology Company Limited Address : Unit D, 8/F, Nanshan Bldg, No.15 Industry Rd, Shekou, Shenzhen, China Manufacturer : Cherub Technology Company Limited Address : Unit D, 8/F, Nanshan Bldg, No.15 Industry Rd, Shekou, Shenzhen, China Date of Test : March 15-28, 2007

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1.2 Test Facility

Site Description: A

EMC Laboratory : Certificated by FCC Registration Number: 248337 December 07, 2007 Certificated by Intertek ETL SEMKO Registration Number: TMPSHA031 November 10, 2006 Name of Firm : Asia Institute Technology (Dongguan) Limited Site Location : No.6, Bin-He Road, Tian-xin Village, DongGuan

Site Description: B

EMC Laboratory : Certificated by FCC Registration Number: 759397 November 04, 2003 Certificated by TOYO Registration Number: 103-8284 September 6, 2003 Certificated by VCCI Registration Number: R-1847 / C-1978 April 06, 2004 Name of Firm : Solid Industrial (Shenzhen) Co., Ltd Site Location : #333, Bu Long Road, Ban Tian Village, Long Gang District, Shenzhen, China

1.3 Test Uncertainty Conducted Emission Uncertainty = ±2.66dB Power Disturbance Uncertainty = ±2.66dB

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2. TEST INSTRUMENT USED 2.1.For Conducted Emission Test（A）

Item Equipment Manufacturer Model No. Serial No. 1. Spedtrum Analyzer ADVANTEST R3132 160400093 2. EMI Receiver Schwarzbeck FCKL1528 1528-194 3. LISN Kyoritsu KNW-407 8-1789-4 4. 50Ω Coaxial Switch Anritsu MP59B 6200264415

2.2.For Radiated Emission Test （A） Item Equipment Manufacturer Model No. Serial No. 1 Spectrum Analyzer ADVANTEST R3132 160400005 2 Low Noise Pre Amplifier Tsj MLA-10K01-B01-27 1205323

3 TRILOG Super Broadband test Antenna Schwarzbeck VULB9160 9160-3206

4 EMI Measuring Receiver Schaffner SCR3501 235 5 Regulated power supply Schaffner NT41 16216

2.3.For Harmonic / Flicker Test（B） Item Equipment Manufacturer Model No. Serial No. 1. Singal Phase Impedance

Network SCHAFFNER INA2152 7001-406-1 2. Signal Generator Unit SCHAFFNER CCN1000-1 5004-400-1 3. 5KV AC Power Source SCHAFFNER NSG1007 7000-438-2

2.4.For Electrostatic Discharge Immunity Test（B） Item Equipment Manufacturer Model No. Serial No. 1. Electrostatic Discharge Simulator Noiseken ESS-200AX FY66576 2. AC Power Supply KIKUSUI PCR-4000W EA002472

2.5. For RF Field Strength Susceptibility Test（B） Item Equipment Manufacturer Model No. Serial No. 1. Signal Generator R&S SMG 839331/018 2. Distortion Meter KENWOOD HM-250 3090020 3. Power Reflection Meter R&S NAP 839393/030 4. Isotropic Field Monitor AMPLIFIER

RESEARCH FM2000 15744

5. RF Power Amplifier System TOYO AS300SSS 950703 6. Synthesized Function Generator YOKOGAWA FC110 27D113233 7. Electric Field Probe AMPLIFIER

RESEARCH FP2000 300455

8. AC Power Supply KIKUSUI PCR-4000L CL001357

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2.6.For Electrical Fast Transient/Burst Immunity Test（B） Item Equipment Manufacturer Model No. Serial No. 5. Fast Transient Burst Generator SCHAFFNER NSG 3025 19673 6. AC Power Supply KIKUSUI PCR-2000L 15040950 7. Computer HP / SG95001903

2.7.For Immunity Test (TS9980 Test System) （B） Item Equipment Manufacturer Model No. Serial No. 4. Signal Generator R&S SMG 839331/013 5. Signal Generator R&S SMG 839331/019 6. RF Selector TOYO NS8900 9508009 7. Filter Unit TOYO NF8900 9508012 8. Audio Analyzer R&S UPA 840317/009 9. Oscilloscope LEADER LS 8022 2187444 10. Millivoltmeter R&S URV5 839330/032 11. Millivoltmeter R&S URV5 839330/032 12. RF Power Amplifier EN 411LA 810F 13. Bandpass-filter Erika Fiedler / / 14. Spedtrum Analyzer ADVANTEST R3261C 51720141 15. EMI Test Receiver R&S ESS 837010/012 16. RF Selector TOYO NS4000 9507001 17. RF Selector TOYO NS4900 0308-021 18. Signal Generator R&S SMG 838730/023 19. Signal Generator R&S SMG 839331/019 20. RF Selector TOYO NS4900 0308-021 21. AC Power Supply KIKUSUI PCR-4000L CL001356 22. Computer DELL GX260 B9WR91X 23. Software TOYO CE / 24. Pinter HP 3658 CN3513DIQX

2.8.For Immunity Test For 900 MHz RF E.M. Field Test（B） Item Equipment Manufacturer Model No. Serial No. 1. Signal Generator R&S SMG 839331/018 2. Distortion Meter Kenwood HM-250 3090020 3. Power Reflection Meter R&S NAP 839393/030

4. Isotropic Field Monitor Amplifier Research FM2000 15744

5. RF Power Amplifier System Toyo AS300SSS 950703 6. Synthesized Function Generator Yokogawa FC110 27D113233

7. Electric Field Probe Amplifier Research FP2000 300455

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3. POWER LINE CONDUCTED EMISSION TEST

3.1.Block Diagram of Test Setup

(EUT: Multi Guitar Effects)

3.2.Test Standard EN55013: 2001+A1: 2003

3.3.Power Line Conducted Emission Limit

Limits (dBµV) 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.

3.4.EUT Configuration on Test The following equipments are installed on conducted emission test to meet EN55013 requirement and operating in a manner that tends to maximize its emission characteristics in a normal application.

3.4.1 Multi Guitar Effects

(A) Model No. : NUX-07

(B) Serial No. : E2007033001

(C) Manufactory : Cherub Technology Company Limited.

Test Receiver

L.I.S.NAC mains

EUT Audio Signal

AC/DC Adapter

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3.5.Operating Condition of EUT

3.5.1.Setup the EUT and simulators as shown in Section 3.1.

3.5.2.Turn on the power of all equipments.

3.5.3.Let the EUT work in test mode and test it.

3.6.Test Procedure The EUT is put on the table that is 0.8m high above the ground and connected to the AC mains through Artificial Mains Network (AMN). This provided a 50 ohms coupling impedance for the tested equipments. Both sides of AC line are checked to find out the maximum conducted emission levels according to the EN55013 regulations during conducted emission test. The bandwidth of the test receiver (Spedtrum Analyzer R3132) is set at 9KHz. The frequency range from 150 KHz to 30 MHz is investigated. The test data are listed in the Section 3.7 and the scanning waveform are attached within Appendix I.

3.7.Power Line Conducted Emission Test Results PASS. The frequency spectrum from 0.15 MHz to 30 MHz is investigated.

Detailed information, please see the appendix (I) file.

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4. DISTURBANCE POWER TEST


4.1.1.For AC Mains

POWER CLAMP


4.2.Test Standard EN55013: 2001 + A1: 2003

4.3.Disturbance Power Limit All emanations from devices or system including any network of conductors and apparatus connected thereto, shall not exceed the level of field strengths specified below:

Interference Power Limits dB (pW) Frequency MHz Quasi-peak Value Average Value

30 ~ 300 45 Increasing Linearly with Frequency to 55

(Q.P.)

35 Increasing Linearly with Frequency to 45

(A.V.)

4.4.EUT Configuration on Test The EN55013 regulations test method must be used to find the maximum emission during disturbance power test. The configuration of EUT is the same as used in conducted emission test. Please refer to Section 3.4.

Test Receiver

AC mains

EUTAudio Signal

AC/DC Adapter

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4.5.1.Setup the EUT and simulators as shown in Section 4.1.



4.6.Test Procedure The EUT is placed on the table which is 0.8m high above the ground and away from other metallic surface at least 0.4m. It is connected to the power mains through an extension cord of 6m min. The absorber clamp clamps the cord and moves from the far end to the EUT to measure the disturbing energy emitted from the cord. The bandwidth of the test receiver(R3132) is set at 120kHz. The frequency spectrum from 30 MHz to 300 MHz is investigated. The test data are listed in the Section 4.7 and the scanning waveform are attached within Appendix II.

4.7.Disturbance Power Test Result PASS. The frequency spectrum from 30 MHz to 300 MHz is investigated. Detailed information, please see the appendix (II) file.

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5. HARMONIC CURRENT EMISSION TEST

5.1. Block Diagram of Test Setup


5.2. Test Standard EN61000-3-2: 2000

5.3. Operating Condition of EUT Same as Section 3.5 except the test set up replaced by Section 5.1.

5.4. Test Results

PASS.

AC mains AC Source

EUT

Power Analyzer

AC/DC AdapterAudio Signal

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6. VOLTAGE FLUCTUATIONS & FLICKER TEST

6.1.Block Diagram of Test Setup Same as Section 5.1

6.2.Test Standard EN 61000-3-3: 1995+ A1: 2001+A2: 2005

6.3.Operating Condition of EUT Same as Section 3.5

6.4.Test Results PASS.

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7. MEASUREMENTS OF INPUT IMMUNITY As the EUT (Multi Guitar Effects) having no any FM Tuner terminal or TV Tuner terminal, so the item according to the standard (EN55020: 2002 + A1: 2003 + A2: 2005) is not required.

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8. IMMUNITY TEST FROM CONDUCTED CURRENTS As the EUT (Multi Guitar Effects) having no any FM Tuner terminal or TV Tuner terminal, so the item according to the standard (EN55020: 2002 + A1: 2003 + A2: 2005) is not required.

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9. IMMUNITY TEST FROM CONDUCTED VOLTAGES

9.1.Block Diagram Of Test Setup


9.2.Test Standard EN55020: 2002 + A1: 2003 + A2: 2005

9.3.Limits of Immunity from Conducted Voltages Table 12 - Limits of immunity to RF voltages of mains,

Loud5.1CH Speaker and headphone terminals Frequency Level

MHz dB (µV) (e.m.f) 0.15 ~ 30 130 30 ~ 100 120 100 ~ 150 120 –110 a

a Decreasing linearly with the logarithm of the frequency.

Table 13 - Limits of immunity to RF voltages of audio input and output terminals (except loud5.1CH Speaker and headphone

terminals) Frequency Level MHz dB (µV) (e.m.f)

0.15 ~ 1.6 80 - 90 a 1.6 ~ 20 90 - 120 a 20 ~ 100 120

Audio Input and Output terminals

100 ~ 150 120 – 110 b a Increasing linearly with the logarithm of the frequency. b Decreasing linearly with the logarithm of the frequency.

TS9980 TEST SYSTEM

Rci 8Ω

MSF

Audio out AC Power input Audio in

EUT

Interference signal

Audio

AC Mains

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9.4.EUT Configuration On Test The configuration of EUT is listed in Section 3.4.

9.5.Operating Condition Of EUT

9.5.1.Setup the EUT as shown in Section 9.1.



9.6.Test Procedure

9.6.1. The measurement set-up must be arranged as 9.1. 9.6.2. The EUT is placed 0.1m above the center 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 MSF.

9.6.3. For adjusting, the wanted signals are set, dependent on the type of EUT and its operating mode.

9.6.4. The audio controls of the EUT, other than the volume control, are set at normal position. The volume control must be adjusted to obtain an audio output power of 50 mW to obtain the adequate S/N ratio.

9.6.5. For the measurement, the unwanted signal or the interference signal is applied to the terminal under test by making the connections as 9.1.

9.7.Test Results

Immunity from conducted voltages in DVD playing Mode Pass!

Detailed information, please see the appendix (III) file.

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10. IMMUNITY TEST FROM RADIATED FIELDS

10.1.Block Diagram Of Test Setup



10.3.Limits of Immunity from Radiated Fields Table 19 – Limits of immunity to ambient electromagnetic fields of

Equipment with audio or video functions Frequency

MHz Level

dB (µV/m) 0.15 to 150 125

10.4.EUT Configuration on test The configuration of EUT is listed in Section 3.4.

10cm

Interferencesignal

Audio in

TS9980 TEST SYSTEM

Rco/8Ω

50Ω/150ΩEUT

Audioout

Strip line

80cm

150Ω

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10.5.1.Setup the EUT as shown in Section 10.1 10.5.2.Turn on the power of all equipments. 10.5.3.Let the EUT work in test mode and test it.

10.6.Test Procedure

10.6.1. The measurement set-up must be arranged as 10.1. 10.6.2. The required field strength is adjusted with the EUT inside the

set-up as described 10.1. The equipment however is switched off during the adjustment.

10.6.3. For the measurement, the unwanted signal is supplied by generator being connected through wide-band amplifier, and low-pass filter F to matching network MN of the stripline. The wide-band amplifier Am may be required to provide the necessary field strength. The stripline is loaded with a terminating impedance TI.

10.6.4. The wanted signals must be 1KHz, 500 mV (e.m.f.). 10.6.5. The unwanted signal shall be amplitude modulated with 1 KHz

at 80% depth, supplied by generator and amplifier. 10.6.6. Measurements shall be performed while taking into account the

general performance criterion and immunity requirements.

10.7.Test Results

Immunity from radiated fields in DVD playing Mode Pass! Detailed information, please see the appendix (IV) file.

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11. MEASUREMENT OF SCREENING EFFECTIVENESS As the EUT (Multi Guitar Effects) having no any FM Tuner terminal or TV Tuner terminal, so the item according to the standard (EN55020: 2002 + A1: 2003 + A2: 2005) is not required.

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12. IMMUNITY TEST FOR 900MHZ RF E.M. FIELD




12.3.Severity Levels and Performance Criterion

Severity Level: Severity Level 2 at 3 V/m (900 MHz) Level Field Strength (V/m)

1. 1 2. 3 3. 10 X. Special

Performance criterion: A

12.4.EUT Configuration On Test The configuration of EUT is listed in Section 3.4

EUT

0.8 m

Full Anechoic Chamber

Power Amp Signal Generator (Dummy G.S.M Protable telephone)

Measurement Room

1 m

0.2 m

1 m

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12.5.Operating Condition Of EUT

12.5.1.Setup the EUT as shown in Section 12.1 12.5.2.Turn on the power of all equipments. 12.5.3.Let the EUT work in test mode and test it.

12.6.Test Procedure

12.6.1. The measurement set-up must be arranged as 12.1. 12.6.2. Measurements shall be carried out in accordance with IEC

61000-4-3 in the frequency range 80 MHz to 150 MHz with limits as section 12.3. The recommended step size of 1% shall be replaced by a scanning, which allows for an adequate observation time of the possible interference.

12.6.3. The interference signal must be set as following: 900 MHz, 3 V/m.

12.6.4. The equipment shall be placed on a non-conduction table with a height of 80 cm. Testing shall be done with horizontal or vertical polarized field with the equipment in one position. Arrangements concerning cables and filters are the same as for measurements in the open strip line. Each of the four sides of EUT must be faced this transmitting antenna and measured by turns.

12.7.Test Results

Test mode : On Temperature : 23

AC Mains : AC 230V/50Hz Humidity : 68％

Frequency Range : 80MHz to 150MHz Criterion : A

Modulated signal : AM, 900MHz, 3 V/m

Steps # / % Horizontal Vertical

Front Pass! Pass! Right Pass! Pass! Rear Pass! Pass! Left Pass! Pass!

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13. ELECTROSTATIC DISCHARGE TEST


13.1.1.Block Diagram of The EUT


13.1.2.ESD Test Setup



13.3.Severity Levels and Performance Criterion Severity Level 3 for Air Discharge at 8KV Severity Level 2 for Contact Discharge at 4KV Severity Level:

Level Test Voltage Contact Discharge (KV)

Test Voltage Air Discharge (KV)

1. 2 2 2. 4 4 3. 6 8 4. 8 15 X. Special Special

Performance criterion: B

Remark: is Discharge Electrode

EUT

AC Mains AC Mains

ESD Tester

0.8 m

AC/DC AdapterAC mains

Audio Signal

EUT

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13.4.EUT Configuration on Test The configuration of EUT is listed in Section 3.4.





13.6.Test Procedure

13.6.1.Air Discharge: This test is done on a non-conductive surface. The round discharge tip of the discharge electrode shall be approached as fast as possible to touch the EUT. After each discharge, the discharge electrode shall be removed from the EUT. The generator is then re-triggered for a new single discharge and repeated 10 times for each pre-selected test point. This procedure shall be repeated until all the air discharge completed.

13.6.2.Contact Discharge: All the procedure shall be same as Section 13.6.1 except that the tip of the discharge electrode shall touch the EUT before the discharge switch is operated.

Indirect discharge for horizontal coupling plane At least 20 single discharges shall be applied to the horizontal coupling plane, at points on each side of the EUT. The discharge electrode position is vertically at a distance of 0.1m from the EUT and with the discharge electrode touching the coupling plane.

Indirect discharge for vertical coupling plane At least 20 single discharges shall be applied to the center of one vertical edge of the coupling plane. The coupling plane, of dimensions 0.5m X 0.5m, is placed parallel to, and positioned at a distance of 0.1m from the EUT. Discharges shall be applied to the coupling plane, with this plane in sufficient different positions that the four faces of the EUT are completely illuminated.

13.7.Test Results PASS. Detailed information, Please refer to the following page.

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Electrostatic Discharge Test Results

EUT ：Multi Guitar Effects Temperature ： 23

M/N ：NUX-07 Humidity ： 68％

Power Supply ：AC 230V, 50Hz Test Mode ： ON

Air Discharge: ±8KV For each point positive 10 times and negative 10 times discharge.

Contact Discharge: ±4KV

Location Kind A-Air Discharge

C-Contact Discharge

Result

Buttons 8 points A PASS

Slot 10 points A PASS

Metal Cover 10 points C PASS

Screws 10 points C PASS

HCP 4 points C PASS

VCP of Front 2 points C PASS

VCP of Rear 2 points C PASS

VCP of Left 2 points C PASS

VCP of Right 2 points C PASS Remark: Discharge should be considered on Contact and Air and Horizontal Coupling Plane (HCP) and Vertical Coupling Plane (VCP).

Test Equipment: See Clause 2.

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14.ELECTRICAL FAST TRANSIENT/BURST TEST

14.1.Block Diagram of the EUT

14.1.1.Block Diagram of The EUT


14.1.2.Block Diagram of Test Setup



14.3.Severity Levels and Performance Criterion Severity Level 2 at 1KV Severity Level: Open Circuit Output Test Voltage ±10％

Level On Power Supply Lines On I/O (Input/Output) Signal data and control lines

1. 0.5 KV 0.25 KV 2. 1 KV 0.5 KV 3. 2 KV 1 KV 4. 4 KV 2 KV X Special Special

Performance criterion: B

EFT/B Tester

AC Mains

EUT

AC/DC AdapterAC mains

0.8 m

Audio Signal

EUT

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14.4.EUT Configuration on Test

The configuration of EUT is listed in Section 3.4.





14.6.Test Procedure The EUT is put on the table that is 0.8 meter high above the ground. This reference ground plane shall project beyond the EUT by at least 0.1m on all sides and the minimum distance between the EUT and all other conductive structure, except the ground plane beneath the EUT, shall be more than 0.5m.

14.6.1.For input and output AC power ports:

The EUT is connected to the power mains by using a coupling device that couples the EFT interference signal to AC power lines. Both polarities of the test voltage should be applied during compliance test and the duration of the test is 2 minutes.

14.6.2. For signal lines and control lines ports: No any ports like this.

14.6.3.For DC output line ports: No DC output ports.

14.7.Test Results PASS. Detailed information, Please refer to the following page.

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Electrical Fast Transient/Burst Test Results

EUT ： Multi Guitar Effects Temperature ： 23

M/N ： NUX-07 Humidity ： 68％

Power Supply ： AC 230V, 50Hz Test Mode ： ON

Inject Place: AC Mains

Inject Line Voltage KV

Inject Time(s)

Inject Method Results Inject

Line Voltage

KV Inject

Time(s) Inject

Method Results

L ±1 120 Direct PASS

N ±1 120 Direct PASS

L, N ±1 120 Direct PASS

Line out ±0.5 120 Direct PASS

Digital out ±0.5 120 Direct PASS

Remark:

Test Equipment: See Clause 2.

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15.PHOTOGRAPH OF TEST

15.1.Photo of Power Line Conducted Emission Test

15.2.Photo of Disturbance Power Test

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15.3.Photo of Immunity Test from Conducted Voltages Test

15.4.Photo of Immunity Test from Radiated Test

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APPENDIX I

Power Line Conducted Emission Test Data

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APPENDIX II

Disturbance Power

Test Data

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APPENDIX III

Immunity Test from Conducted Voltages Test Data (EN55020: S2V)

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28 March,2007 15:19 NUX-07-EMS-070328.dat

<<S2V Measurement>>

Standard : EN55020/2002+A1/2003 Model : NUX-07 Serial :

Operator : He Tiejian Temp./Humid. : 25DEG/58%

AC Power : 230V/50Hz Remark1 : Remark2 :

Meas.Term. : Headphone Lch Interf.Term. : Mains Ope.Mode : AUX

Ref.Level : 0.974 [V]

0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µVe.m.f)] [dB] <S2A_AF_MAIN_EN_94>

Limit <NUX-07-EMS-070328>

S/NStart Level Level

No. Frequency Level System Loss SGLevel Limit Margin [MHz] [dB(µVe.m.f)] [dB] [dB(µV)] [dB(µVe.m.f)] [dB] 1 101.500 129.63 -34.93 87.49 119.63 10.0

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28 March,2007 15:19 NUX-07-EMS-070328.dat

<<S2V Measurement>>




Meas.Term. : Headphone Rch Interf.Term. : Mains Ope.Mode : AUX


0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µVe.m.f)] [dB] <S2A_AF_MAIN_EN_94>




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28 March,2007 15:19 NUX-07-EMS-070328.dat

<<S2V Measurement>>




Meas.Term. : Headphone Lch Interf.Term. : AuxIN Ope.Mode : AUX


0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µVe.m.f)] [dB] <S2A_AF_IO_EN_94>




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28 March,2007 15:19 NUX-07-EMS-070328.dat

<<S2V Measurement>>




Meas.Term. : Headphone Rch Interf.Term. : AuxIN Ope.Mode : AUX


0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µVe.m.f)] [dB] <S2A_AF_IO_EN_94>




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APPENDIX IV

Immunity Test from Radiated Fields

Test Data (EN55020: S3)

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28 March,2007 16:32 NUX-07-EMS-070328.dat

<<S3 Measurement>>




Meas.Term. : Headphone Lch Ope.Mode : AUX Ref.Level : 0.954 [V]

0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µV/m)] [dB] <S3_AUIDO_EN_94>



No. Frequency Level System Loss SGLevel Limit Margin [MHz] [dB(µV/m)] [dB] [dB(µV)] [dB(µV/m)] [dB] No Data Under The View Line.

Measure Comment: Result more than limit +10dB

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28 March,2007 16:32 NUX-07-EMS-070328.dat

<<S3 Measurement>>




Meas.Term. : Headphone Rch Ope.Mode : AUX Ref.Level : 0.954 [V]

0.15 150.00 1.00 10.00 0

150

10 20 30 40 50 60 70 80 90

100 110 120 130 140

-120

0

-110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10

Frequency

Le

veS/

N

[MHz]

[dB(µV/m)] [dB] <S3_AUIDO_EN_94>



No. Frequency Level System Loss SGLevel Limit Margin [MHz] [dB(µV/m)] [dB] [dB(µV)] [dB(µV/m)] [dB] No Data Under The View Line.

Measure Comment: Result more than limit +10dB

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APPENDIX V

Photograph of the EUT

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FIGURE 1 General Appearance of the EUT (M/N: NUX-07, Front View)

FIGURE 2 General Appearance of the EUT (M/N: NUX-07, Rear View)

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FIGURE 3 Bottom of the EUT (M/N: NUX-07)

FIGURE 4 Inside of the EUT (M/N: NUX-07)

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FIGURE 5 PCB of the EUT (M/N: NUX-07, Front View)

FIGURE 6 PCB of the EUT (M/N: NUX-07, Rear View)

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