Nady Systems ALD-800, Руководство пользователя

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ALD-800 Receiver Operating Instructions
5
Pocket-sized RF receiver for personal
listening assistance.
Any number of ALD-800 receivers can be •
used with a single ALD-800T transmitter
Ultra compact and lightweight
•
Preset to one of eight auditory •
assistance channels
Provides up to 130 dB SPL for
•
hearing assistance
Volume control adjust
•
Antenna integral with earphone cord •
Mini binaural EB-800 earbud •
earphones included
LED “power on” indicator
•
Accepts standard 9V alkaline battery •
Powering The receiver
Install a 9V battery in Battery Compartment
(1) , ob serv ing polarity. To preserve battery
life, always turn the ALD-800 receiver off
when it is not in use. When the sound
becomes weak or distorted, replace the
battery. The number of hours of operation
per battery is as follows: carbon zinc type
battery: 10-12 hours; alkaline battery
(recommended): 17-20 hours.
Channel selection
Your receiver is pre-tuned at the factory
to the same channel as your trans mit ter.
Should you wish to have your transmitter
channel changed, as explained in the
Transmitter Operating Instructions section
of this manual, you must also have your
receiver(s) retuned as well. Contact the
Nady Customer Service Department
for details.
using the alD-800 earphones
Plug the included earphones into the
earphone jack (2) on top of the receiver.
The earpads can be ordered sep a rate ly,
and since they cost very little, you may wish
to dispose of them after use. However, the
earpads can be replaced and reused after
being washed in a mild detergent, rinsed
and air dried.
Operating the receiver
While wearing your earphones, stand near
the ALD-800 transmitter. Turn the receiver
on by rotating the
Off/On/Volume wheel (3) .
The Power On indicator (4) will go on. (To
turn the receiver off, rotate the Off/On/
Volume wheel until it clicks, and the
“Power On” indi ca tor will go out.) Listen for
your program source, and adjust receiver
volume to a com fort able listening level.
Note:
A slight buzzing may be heard if the receiver
is used within six feet of the trans mit ter.
This is normal and does not affect performance.
For best performance, keep the receiver and
the transmitter at least ten feet apart.
adjusting earphones Volume
Listen for your program source, and
adjust receiver volume to a com fort able
listening level.
Note: A slight hum may be heard if the receiver
is used within six feet of the transmitter.
This is normal and does not affect performance.
Testing receiver range
Wearing your receiver and earphones,
walk around your seating area and listen for
audio quality. In certain areas of the room
the audio may disappear or “drop out.”
This is a normal occurrence whenever radio
signals are transmitted inside a building.
If you step away from the “drop out” zone,
the audio will return.