ON TOUR XTB (serv.man12) - JBL Audio EMC - CB Certificate (repair manual). Page 7

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Nemko USA, Inc.
 
11696 Sorrento Valley Road, Suite F, San Diego, CA  92121 
Phone (858) 755-5525  Fax (858) 452-1810
DATE 
DOCUMENT NAME
DOCUMENT # 
PAGE 
February 12, 2010 
Harman Kardon Inc Bluetooth Portable Loudspeaker 
 CE Evaluation 
2010 02138368 ETSI 
7 of 40 
 
 
 
 
 
2.    SYSTEM CONFIGURATION 
 
2.1. 
Description and Method of Exercising the EUT 
 
The JBL On Tour XTB is a Bluetooth Portable Loudspeaker.  Its function is to provide audio amplification from 
audio, USB or a Bluetooth paired device. For RF testing, special cables for connecting to both a parallel port 
and a serial port were added to control the radio circuit board by using test software in a personal computer 
(PC). The antenna was bypassed by a cable pigtail to provide conducted measurements. The RF circuit was 
programmed for low, mid or high channel, hopping or single channel mode and disconnected from the PC to 
be carried into the test set up. The batteries allowed the program to continue as the EUT was returned to be 
powered by the Wall Wart. Therefore the fresh batteries did not degrade during testing. BlueTooth rf 
communication is two way continuous. There was no provision made to test in receive mode. FCC section B 
testing was performed for non-BlueTooth mode when the EUT was exercised with input from a CD player. 
 
The EUT was exercised by a BlueTooth paired device transmitting a stream of MP3 file formatted audio music 
for standard use mode. This produced digital emissions in hopping mode. 
Prescans with the EUT powered by the Wall Wart proved worse case over the EUT powered by 4 1.5 V 
batteries. Audio cable was inserted in the audio input port. The USB cable was inserted in its port. This USB’s 
only function is to recharge a cell phone with no data connection. 
 
The EUT’s performance during test was evaluated against the performance criterion specified by applicable 
test standards.  Performance results are detailed in the test results section of this report. 
 
 
2.2. 
System Components and Power Cables 
 
DEVICE MANUFACTURER 
MODEL # 
SERIAL # 
POWER CABLE 
EUT - Bluetooth Portable 
Loudspeaker 
 
Harman Kardon Inc 
Model: JBL On Tour XTB 
Serial #: SZ0TB-0000066 
12 Vdc 
EUT – Power Supply #1 
JBL 
Model: MU15-C120125-A1 
PN: 700-0059-001 
2 prong Wall Wart 
120-240 VAC  
50/60 Hz 
 
 
 
2.3. 
Device Interconnection and I/O Cables 
 
Connection I/O 
Cable 
USB 
Non- terminated  
Audio Cable 
Non- terminated for Bluetooth Mode 1m 
 
 
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