ON STAGEII (serv.man2) - JBL Audio EMC - CB Certificate (repair manual)

Model
ON STAGEII (serv.man2)
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19
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629.64 KB
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PDF
Document
EMC - CB Certificate
Brand
Device
Audio
File
on-stageii-sm2.pdf
Date

View JBL ON STAGEII (serv.man2) EMC - CB Certificate online

REPORT #56050AF 
 
 
 
CERTIFICATION REPORT 
OF A 
INTENTIONAL RADIATOR 
 
Per 
 
Part 15 Subpart C 
CFR 47, Section 15.231 paragraph (a) 
 
EUT: AirClick 
 
 
 
PREPARED FOR APPLICANT: 
Griffin Technology  
1619 Elm Hill Pike 
Nashville, TN 37210 
 
REPORT  # 56050AF 
TEST COMPLETION DATE: January 13, 2005 
 
Prepared By: 
DNB ENGINEERING, INC. 
1100 East Chalk Creek Rd. 
Coalville, Utah 84017 
Tel:  1(435) 336-4433 
 
NVLAP Lab Code 200634-0 
REPORT  # 56050AF 
 2   
EXECUTIVE SUMMARY  
 
The purpose of this series of tests was to demonstrate the Electromagnetic Compatibility 
(EMC) characteristics of the AirClickthe following tests were performed: 
 
 
REQUIREMENTS 
STATUS 
COMPLIANT 
Yes/No/NA 
47 CFR Part 15, Subpart C  
Section 15.231 
Yes 
 
 
 
 
 
       
Signed By: 
 
Clay Allred 
Lab Manager 
DNB Engineering Inc. 
 
This report shall not be reproduced without the written approval of DNB 
ENGINEERING, INC. Results contained in this report relate only to the 
item tested. 
 
REPORT  # 56050AF 
 3   
 
DOCUMENT HISTORY 
 
Revision 
Letter 
Number 
of Pages 
Page No. 
of Rev. 
Description 
Date 
 
19 
 
Document Release 
3/1/05 
 
 
 
 
 
 
 
 
 
 
 
 
REPORT  # 56050AF 
 4   
 
TABLE OF CONTENTS 
1.
 
INTRODUCTION......................................................................................................................7
 
1.1
 
A
DMINISTRATIVE 
D
ATA
......................................................................................................7
 
1.1.1
 
REQUEST FOR CERTIFICATION .............................................................................7
 
1.2
 
T
EST 
C
ONFIGURATION
.........................................................................................................7
 
1.3
 
E
QUIPMENT 
D
ESCRIPTION
...................................................................................................7
 
1.4
 
M
ODE OF OPERATION
..........................................................................................................7
 
1.5
 
D
OCUMENTED 
EMC
 
C
ONTROL 
M
EASURES
...........................................................................7
 
1.6
 
C
LOCKS AND 
O
SCILLATORS
:.................................................................................................7
 
1.7
 
T
EST 
P
LAN 
S
UMMARY
.........................................................................................................8
 
1.8
 
J
USTIFICATIONS
...................................................................................................................8
 
2.
 
RADIATED EMISSIONS FCC CFR 47 PART 15 SUBPART C .................................................9
 
2.1
 
R
ADIATED 
E
MISSIONS
..........................................................................................................9
 
2.1.1
 
Test Setup and Procedure .............................................................................................9
 
2.2
 
R
ADIATED 
E
MISSIONS 
C
OMPLIANCE 
D
ATA
........................................................................11
 
2.3
 
D
UTY 
C
YCLE 
C
ALCULATIONS
.............................................................................................12
 
2.4
 
C
LIMATIC 
C
ONDITIONS
.....................................................................................................12
 
2.5
 
C
OMPLIANT 
S
TATEMENT
..................................................................................................12
 
3.
 
OCCUPIED BANDWIDTH – PER ANSI C63.4 ANNEX I.6....................................................13
 
3.1
 
T
EST 
S
ETUP AND 
P
ROCEDURE
............................................................................................13
 
3.2
 
O
CCUPIED 
B
ANDWIDTH 
T
EST 
D
ATA
...................................................................................13
 
3.3
 
O
CCUPIED 
B
ANDWIDTH
.....................................................................................................14
 
4.
 
APPENDIX SECTION.............................................................................................................15
 
4.1
 
APPENDIX
 
A:
  
UNCERTAINTY
 
TOLERANCE...............................................................15
 
4.2
 
APPENDIX
 
B:
  
SITE
 
CHARACTERISTICS, .....................................................................15
 
4.2.1
 
Ambient Emissions......................................................................................................15
 
4.2.2
 
FCC Certification........................................................................................................16
 
4.2.3
 
NVLAP Accreditation ................................................................................................17
 
4.2.4
 
NVLAP Accreditation ................................................................................................18
 
4.3
 
APPENDIX
 
C:
  
EMC
 
INSTRUMENTATION
 
AND
 
MEASUREMENT
 
EQUIPMENT........19
 
 
REPORT  # 56050AF 
 5   
 
TRANSMITTAL SUMMARY 
 
Unit tested: 
AirClick 
 
 
Specifications: 
47 CFR Part 15 Subpart C section 15.231(a) / ANSI C63.4 
 
 
Purpose of Report: 
This report was prepared to document the status of the 
AirClick with requirements of the standards listed above  
 
 
Test Summary: 
The EUT’s compliance status according to the tests 
performed is as follows:  
 
Refer to Page 2 Executive Summary. 
 
 
REPORT  # 56050AF 
 6   
 
CERTIFICATION OF TEST DATA 
 
This report, containing electromagnetic immunity and emissions test data and 
evaluations, has been prepared by an independent electromagnetic compatibility 
laboratory, DNB ENGINEERING, in accordance with the applicable specifications and 
instructions required per the Introduction. NEMKO and the National Institute of Standards 
and Technology have evaluated DNB Engineering to do these tests for NVLAP. 
NEMKO EMC Laboratory Authorization No.: ELA 116 
NVLAP Lab Code: 200634-0 
 
 
The data evaluation and equipment configuration presented herein are a true and 
accurate representation of the measurements of the test sample’s electromagnetic 
immunity and emissions characteristics as of the dates and at the times of the test under 
the conditions herein specified. 
Equipment Tested: 
AirClick 
Test Completion Date: 
1/13/05 
 
Report Written By:    
 
 
 
 
3/1/2005 
 
Clay Allred  
Date 
 
Lab Manager 
 
 
 
 
 
Report Reviewed By: 
  
 
 
 
3/1/2005 
 
Carrie Yates  
Date 
 
Quality Assurance Manager 
 
 
 
   
 
 
 
 
 
 
 
 
REPORT  # 56050AF 
 7   
1.  INTRODUCTION 
1.1  Administrative Data  
1.1.1  REQUEST FOR CERTIFICATION 
Applicant: 
Griffin Technology  
 
1619 Elm Hill Pike Suite 400 
 
Nashville, TN 37210 
 
 
Contact:  Stephen Woolverton 
Phone Number:  615-399-7000 
Fax Number:  615-399-7000 
Email:  [email protected]  
Test Completion Date:  January 13, 2005 
   
Equipment Under Test (EUT): 
FCC ID 
AirClick 
PAV4021AC
 
1.2  Test Configuration 
Config-  
uration               
Unit Name - Processor, 
Monitor, Printer, Cable, etc. 
(indent for features of a unit)
 
Style/Model/ 
Part No.
 
Serial 
Number
 
Obj. 
of 
test
 
VAC
 
Comments/  
FCC ID#
 
Transmitter 
AirClick 
P214 
Battery operated 
PAV4021AC 
 
X
  - Specific device(s) for which this test is being conducted. 
1.3  Equipment Description 
The Griffin AirClick is intended to control the operation of the Apple iPod fitted with the 
appropriate Receive device.
 
1.4  Mode of operation 
The EUT had a new battery installed and was setup in a transmit state. The volume 
bottom was tapped down in order for the transmitter to remain in a Transmit state during 
testing. Prior to testing the Fundamental Frequency of the Device under test was 
monitored while being set up in different orientations, in order to find the position of 
maximum emissions.  
1.5  Documented EMC Control Measures 
None 
1.6  Clocks and Oscillators: 
13.56 MHz Crystal & 433.92 MHz Transmit Frequency  
REPORT  # 56050AF 
 8   
 
1.7  Test Plan Summary  
Refer to the Executive Summary on Page 2 
1.8  Justifications 
None 
REPORT  # 56050AF 
 9   
2.   RADIATED EMISSIONS FCC CFR 47 PART 15 SUBPART C  
2.1  Radiated Emissions  
2.1.1  Test Setup and Procedure 
The EUT was placed on a wooden table 1 meter wide and 1.5 meters long which rests 
on a flush mounted, steel-top turntable on the open area test site as shown below. The 
top of the table is 80 cm above the ground plane. The turntable can be rotated 360 
degrees.  Measuring antenna is set at the prescribed distance.  Measurements are made 
with broadband antennas that have been correlated with tuned dipole antennas. The 
mast is 4.5 meters high and is self-supporting.  The height of the antenna can be varied 
from 1 to 4 meters.  Positioning of the antenna is controlled remotely.  
 
 
 
         Open Area Test Site 
 
 
 
ADJUSTABLE 
ANTENNA 
HEIGHT 
(30m) 1-6 Meters 
(10m) 1-4 Meters 
(3m)   1-4 Meters 
   Flush Mounted 
Rotating Turntable 
3, 10, 30 Meters distance as specified 
 
 
Ground 
Plane 
EUT 
REPORT  # 56050AF 
 1 0   
Radiated Test Setup and Procedure  - contd. 
 
The EUT is put into the operational test mode as stated in Section 1.4, it is then started. 
 
The spectrum analyzer is setup to store the peak emission over the frequency range of 
the antenna. Peak EUT and ambient emissions are stored while the turntable is rotated 
360
0
. The Peak spectrum analyzer trace is then plotted with the addition of antenna and 
cable correction factors.  The limit is plotted on the same graph.  A receiver with CISPR 
Quasi Peak detector is then used on the frequencies identified as the highest with 
respect to the plotted limit.  Ambients are noted on the graph along with EUT emissions.  
The highest emissions are maximized. 
 
To maximize emissions levels, the turntable is rotated and the antenna is raised and 
lowered to determine the point of maximum emanations.  The cables are then 
manipulated at that point to maximize emissions.  Measurements are made with the 
antennas in each horizontal and vertical polarization. The data obtained from these tests 
is corrected with the proper cable, preamplifier and antenna factors.  The results are then 
transcribed onto tables that show the maximum emission levels.  The highest emissions 
are listed in a Radiated Emissions Summary table. 
 
If no emissions can be found, the lowest harmonics of the EUT clocks within the bands 
of the standard are tuned into with the receiver.  If no emissions are found, the noise floor 
will be entered to the table and noted.  A minimum of six frequencies will be logged.  
Summary results will reflect only actual emissions from the EUT.  
 
The field intensity measurements are made using standard techniques with a spectrum 
analyzer or EMI receiver as the calibrated Field Intensity Meter (FIM).  Preamplifiers and 
filters are used when required. 
 
When using the Hewlett Packard 8566B Spectrum Analyzer as the FIM, the Analyzer is 
calibrated to read signal level in dBm.  Where: 
 
0 dBm (50 ohms) = 107 dBµV (50 ohms) 
 
The signal level (dBµV) = indicated signal level (dBm) + 107 dB.  To obtain the signal 
level in dBuV/m it is necessary to add the antenna factor in dB. 
 
Example of Typical Calculation 
 
Measurement Distance  = 3 Meter 
Rohde and Schwarz reading @ 60 MHz 
49.0  dBµV 
 
   
Antenna Factor 
+7.5  dB 
 
 
 
Cable Loss 
+2.0  dB 
 
 
 
Preamplifier 
-25.5  dB 
 
 
 
Total Factors 
-16.0  dB/m 
 
   
Field Strength dBµV/m at 3 Meter  = 
33.0  dBµV/m   

Download JBL ON STAGEII (serv.man2) EMC - CB Certificate

Here you can view online and download JBL ON STAGEII (serv.man2) EMC - CB Certificate in PDF. ON STAGEII (serv.man2) emc - cb certificate will guide through the process and help you recover, restore, fix, disassemble and repair JBL ON STAGEII (serv.man2) Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.