Advent AW720 Installation And Operating Instructions Manual page 6

Trouble
NoSoundl
Distortion!
Static
Checks and Adjustments
• Confirm the batteries are"good." When batteries begin to
weaken, there can be static breakup. If necessary,
replace/recharge the batteries.
• Check that the antenna is in the upright position.
• Check that the Transmitter Audio Level Indicator Light is flickering
intermittently. If you are using a fixed output and the light is on
solid or flickering very rapidly, or if the light is not on at all,
adjust the Output Level Control Wheel so that the light
flicke rs intermittently.
or
• If you are using a variable output, make sure the Output Level
Control Wheel is all the way left (as shown under ADJUST THE
TRANSMITTER), and adjust the volume on the audio source up
or down as necessary to make the light flicker intermittently.
• Change the position of the Transmitter Frequency Control Wheel to
change the operating frequency. Then readjust the headphone
Tuning Control Wheel until the Tuning Indicator Ught illuminates red.
• Try changing the physical location of the transmitter. Locate it as
high and free of obstruction as possible. Avoid placing directly
on top of a TV, if possible.
• Try changing the antenna position, particularly if you think you
may be near maximum transmitting range.
• Try moving the transmitter and headphones closer together.
Sending the signal through certain materials, such as glass, tile,
and metal, can decrease the effective transmitting distance of
the system.
SPECIFICATIONS & FEATURES
Transmitter
Omnidirectional
Effective Transmitting Range: Up to 300 feet*
Adjustable Audio Level Input
Variable Frequency Adjustment between 912.5 and 914.5 MHz
Line Audio Input with 3.5mm Stereo Mini Plug plus 1/4"
and Composite
"v"
Cable Adapters
UL-Listed AC Adapter
Headphones
Power ON/OFF switch (right headphone)
Volume Control (right headphone)
Frequency Fine Tuning (left headphone)
Frequency Response: 20 Hz - 20 kHz
Speaker Element: 32mm, litanium-Impregnated Mylar
Magnet Type: Neodymium Iron Boron
Signal-To-Noise Ratio: 60 dB
Channel Separation: 30 dB
Distortion: < 1.5%
*Maximum range; results achieved may vary by environment.
Sound from • Check the left/right balance control on the audio source
One Earpiece
Only • Try fine tuning the headset using the Tuning Control Wheel.
• Check the batteries - they may be weakening.
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