LTB Audio Systems Headphones LTB WRST User Manual

2.4GHz Stereo  
wireless  
DIGI TAL  
H E A D P H O N E S  
2.4GHz Digital Stereo  
Wireless Headphone System  
With 16 Band FSK Transmission  
LTB wants to thank you for choosing the Concert  
Series Wireless Headphones.  
Before attempting to use your Wireless  
Headphones, please remove all parts from the box and  
read the installation and use instructions carefully  
Limited 1 Year Warranty  
LTB-WR-ST  
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W
R
-
S
T
SP  
E
C
I
FI  
C
A
TION  
S
Transmission Mode  
Carrier Frequency  
Operation Voltage  
:
Operating at 2.4GHz ISM band  
with 8 selectable channels  
2410, 2419 ~ 2473 MHz  
:
:
Transmitter, 3.6 ~ 5VDC  
Receiver, 3.9 ~ 5VDC  
(2 x AAA rechargeable batteries)  
20 ~ 20 KHz, -1dB  
100 KHz  
87dB (Typical)  
80dB (Typical)  
30 Meters  
Frequency Response  
Frequency stability  
S/N ratio  
Separation  
Operation distance  
:
:
:
:
:
FCC operation is subject to the following two conditions: (1) this device  
may not cause interference; and (2) this device must accept any  
interference, including interference that may cause undesirable opera-  
tion of the device.  
Changes or modifications not expressly approved by the party  
responsible for compliance to the FCC rules could void the user/s  
authority to operate this equipment.  
Warning: Changes or modifications to this unit not expressly  
approved by the party responsible for compliance could void the  
user/s authority to operate the equipment.  
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7
TR  
OU  
B
LE  
S
HOO  
TING YOU  
R
SYSTEM  
NO SOUND - Make sure the AC adapter is fully inserted into the AC  
outlet and into the DC Power Jack input on the  
transmitter.  
- Make sure the headphone ON/OFF switch is in the  
ON position Indicated by a red LED light.  
- Headphone battery may be too weak. Charge battery.  
Charge the new batteries for 8 hours prior to the first  
use.  
- Make sure the TV, stereo receiver or audio component  
is ON and tuned to a channel with audio.  
- Adjust the volume control on the headphone to  
increase the volume.  
- The connected audio/video equipment is not playing.  
Turn on the equipment.  
- The volume of the headphones is turned down.  
Adjust the volume to an appropriate level.  
NO SIGNAL - Make sure the power indicator on the base unit is on.  
Make sure the power indicator on the headset is on.  
-
Change the CH-SEL button on the base and the CH-SEL  
on the headset to a matching frequency band (when you  
can hear audio)  
- Headphone batteries may be too weak. Charge the  
included NiMh rechargable AAA batteries or replace  
them with new ones.  
- The headphone is too far from transmitter (over 30  
Meters). Move clo.ser  
- The input level of the audio signal is too low. Turn up  
the volume of the audio source equipment.  
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8
C
HA  
R
GING  
TH  
E
B
ATTERIES  
1. Switch the ON/OFF button on the headphone receiver OFF .  
2. Plug the charge cord into the charge input jack of the headphone  
receiver to charge the batteries.  
3. The charging process starts automatically when the batteries are  
charged and the charging RED LED lights up. Charge the new  
batteries for 24 hours prior to the first use of the headphone system.  
Caution : Do not use other types of batteries to replace the rechargeable  
(AAA) battery. When you are not using the headphone  
receiver, please switch it to OFF to avoid damage to the  
batteries.  
CHARGE  
CORD  
The battery pack must be fully charged prior to operation. An initial  
charge of 24 hours is required to ensure the extended life of the  
rechargeable batteries. Be sure the headphone receiver is in the  
OFF position during charge status.  
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6
NO  
TE  
You should now be able to walk freely from room to room enjoying full  
stereo sound. If you notice interference (noisy signal or if the sound is  
distorted or breaks up), adjust the frequency by pressing CH-SEL on the  
top of the transmitter base and then select CH-SEL on the headset.  
the headphones.  
This should help you to obtain better reception with  
You may have to try this adjustment several times to  
obtain optimum performance, depending on the conditions. Please refer  
to the following drawings A and B for best tuning:  
A
Keep a distance of about 60 feet between the headphone and the  
transmitter when adjusting the tuning knob for best stereo reception.  
60 FEET  
B
Whenever you find interference, readjust the frequency of the  
transmitter by pressing CH-SEL on the transmitter and the CH-SEL  
on the headphone to lock in a new frequency  
.
60 FEET  
For protection of the transmitter and to save power, the transmitter  
will cut off automatically after about one minute when the input  
signal from an audio source is too weak for operation. If the signal  
from the audio source returns at a sufficient level, the transmitter will  
turn on again automatically.  
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5
H
E
AD  
P
HON  
E
R
EC  
EIV  
ER  
1. Open the battery compartment cover on the right side of the  
headphone receiver.  
2. Insert two AAA size rechargeable batteries, noting the correct polarity  
as indicated in the battery compartment.  
3. Replace the cover by sliding it in place until it snaps into position.  
4. The batteries must now be charged before you use the headphones.  
Refer to the instructions on page 6 Charging the Batteries for  
details.  
The headphone may be operated by  
using standard or alkaline batteries.  
However, these may not be recharged in  
the headphone. Standard zinc carbon,  
manganese or alkaline batteries  
may leak or explode if recharged in  
the headphone, thereby voiding  
BATTERY  
DOOR  
the warranty. Do not attempt to  
recharge any batteries in the head-  
AAA  
RECHARGEABLE  
BATTERIES  
phone other than nickel cadmium  
type cells that were included with  
your unit.  
RIGHT ARPHONE  
O
PERATION  
1. Turn on the audio source (TV or audio component) to which the  
transmitter is connected.  
2. Slide the ON/OFF switch on the headphone to ÒON.Ó  
3. Listen to the volume coming from the ear cups on the headphone to  
make certain that the volume is not too loud before placing the unit  
on your head. (See the section titled ÒHeadset SafetyÓ on page 1.)  
Adjust the volume as needed using the VOLUME CONTROL wheel  
located on the left ear cup. Once the volume level is at a comfortable  
setting, place the headphones over your ears and adjust the volume  
as desired.  
4. If the best frequency reception is not found, press the ÒAuto ScanÓ  
button on the headphone to locate the frequency of the transmitter  
for the best reception. The stereo LED indicator will light up.  
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4
IN  
S
TA  
LLATION  
TRANSMITTER  
1. Remove the Transmitter from the packaging.  
2. Plug the AC power adapter into the DC jack located on the rear of  
the transmitter.  
3. Connect the AC power adapter to an electrical wall outlet.  
4. The audio cord on the rear of the transmitter can be connected to  
the audio output jack (R & L) of the TV, stereo receiver, VCR, DVD  
or radio.  
Use aY Splitter for R & L type RCA connections.  
5. Turn on the component device.  
Note that when the audio device is on, the green SIGNAL  
INDICATOR LED light will glow (green). This indicates that the  
transmitter is receiving an adequate audio signal. If the LED is not on,  
you must increase the volume until the green LED is lit. If you  
increase the volume and the LED still does not illuminate, then check  
all your connections and make sure that the power is on for both the  
device and the transmitter. Refer to the section titled  
roubleshooting located on page 8 of this instruction book for  
T
assistance.  
AC/DC  
ADAPTER  
AUDIO  
CORD  
CHARGE  
CORD  
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3
2,4GHZ  
TR  
AN SMI TTER  
FR  
ON  
T
FREQUENCY ADJUST  
CHARGE INDICATOR (GREEN)  
POWER ON/SIGNAL INDICATOR (RED)  
B
ACK  
DC POWER JACK  
CHARGE CORD  
AUDIO CORD  
2.4GHZ  
H
E
AD  
PHON  
E
R
E
C
E
IV  
ER  
ON/OFF  
SWITCH  
POWER  
LED  
INDICATOR  
TUNING  
CONTROL  
VOLUM
CONTRO
RIGHT EARPHONE  
CHARGE  
INPUT  
LEFT EARPHONE  
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2
LTB  
LIMI  
TE  
D 1 Y  
E
A
R
WA RRAN  
TY  
LTB Audio Systems, Inc. warrants that for 1 year from the date  
of original purchase, it will replace this product if found to be  
defective in materials or workmanship. Return it postage prepaid  
to the Product Exchange Center address for prompt, no charge  
replacement with a current equivalent. This replacement is  
LTB Audio Systems, Inc. sole obligation under this  
warranty  
LTB Audio Systems, Inc. will not be responsible for any incidental  
or consequential damages, or for any loss arising in connection  
with the use or inability to use this product.  
Some states do not allow the exclusion or limitation of incidental  
or consequential damages, so the above limitation or exclusion  
may not apply to you. This warranty excludes defects or damage  
due to misuse, abuse, or neglect. This warranty gives you specific  
legal rights, and you may also have other rights, which vary from  
state to state.  
© 2005 LTB Audio Systems, Inc.  
Product Service Center  
375 North Street, Unit N  
Teterboro, NJ 07608  
LTB-WR-ST Rev0927  
Trademark(s) ¨ Registered  
Marca(s) Registrada(s)  
Manufactured In China  
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9

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