Acoustic Research AR AW722 - Manual (Page 6)

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SPECIFICATIONS
Models AW722
AW772
Description Radio Frequency
Wireless Headphones System
Transmitter
Carrier Frequency 900 MHz
Effective Range Up to 150 feet/45 meters*
Power Supply 12 V (DC) via a 120 V–60 Hz (AC)
main power supply adapter
Transmission Frequency UHF – 900 MHz/three channels:
911.9 MHz (1), 912.6 MHz (2)
and 913.3 MHz (3)
Headset
Power Supply Two AAA 1.2 V rechargeable batteries
* Range may vary by environment.
LIMITED ONE YEAR WARRANTY
Limited One Year Warranty
Our company (in the U.S.,THOMSON INC.) warrants that for one year
from date of purchase, it will replace this product if found to be defective
in materials or workmanship. For a prompt, no charge replacement of
equivalent product, return the defective product postage prepaid to the
appropriate address.
Product Exchange Center
11721 Alameda Avenue
Socorro TX 79927
This replacement is the company’s sole obligation under this warranty.
THOMSON 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.
TROUBLESHOOTING
Refer to this troubleshooting section if you encounter any difficulties in
setting up and using your headphones.
PROBLEM
No sound heard
through the
headphones
Poor sound quality
or interference
Power cut off
SOLUTION
A) Check that your audio source, recharging
cradle/transmitter and headphones are
connected, supplied properly and turned on.
B) Check to ensure that the rechargeable
batteries are installed in the headset
correctly and have been recharged properly.
C) Check to ensure the recharging cradle/
transmitter is running and the power
indicator light on the unit is lit.
D) Check that the audio source is delivering
a sufficient signal to the recharging cradle/
transmitter’s AUDIO IN input jack.
A) Check to ensure that the sound provided
by the audio source is loud enough and
of sufficient quality.
B) Check if the batteries in the headphones have
sufficient power. Recharge or replace them,
if necessary.
C) Check to see if you have selected the best
transmission channel (1, 2, or 3) to provide
the optimum signal reception. If necessary,
try another channel, remembering to fine-
tune the reception using the tuning control.
D) Check if the distance between the
headphones and the recharging cradle/
transmitter is within the operating range.
(The effective range of this device is up to
150 feet/45 meters from the cradle/
transmitter.)* If out of range, move closer to
the recharging cradle/transmitter to receive
the sound.
E) Check that the audio source provides
stereo sound.
The recharging cradle/transmitter has an
automatic power off function. When no signal
is received for 2 minutes through the recharging
cradle/transmitter’s AUDIO IN input jack, it
switches off. Switch on your audio source again,
and use the tuning control to adjust reception. If
necessary, increase the audio source’s volume.
* Range may vary by environment.
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