Infrared Wireless Monaural Headphone System
(330-1141)                  Preparation                Faxback Doc. # 16847

PLACING THE TRANSMITTER

The transmitter sends out an infrared signal in a 30-degree, conical
pattern.  Since infrared light rays travel in a straight line, place the
transmitter at the same height or slightly higher than the expected height
of the headphones' receiver.

NOTES:  Since sunlight also contains infrared light, avoid placing the
        system outdoors, near a window, in a sun room, or any place where
        the light might prevent optimum transmission.

        Do not point the transmission directly toward a window.  The
        infrared signals do not reflect well and reception might be poor.

        Do not place any object between the transmitter and the receiver
        which might block the infrared transmission.

        An AM radio might interfere with the system's transmitting
        circuitry.  If this occurs separate the system and the radio by
        a larger distance.

Connecting the Transmitter to Your Audio Source

You can connect the transmitter to your audio source's mono headphone
jack or to its audio output phono jack.

Follow these steps to connect the transmitter to your audio source's mono
headphone jack.

1.  Insert the transmitter cable's phono plug into the phono jack end of
    one of the supplied adapters.

2.  Insert the adapter's 1/8-or 1/4-inch plug into the audio source's
    mono headphone jack.

    Or, you can simply insert the transmitter cable's phono plug directly
    into your audio source's monaural audio output jack.

Connecting the Transmitter to Power

To power the transmitter, insert the supplied AC adapter's barrel plug
into the DC IN jack on the back of the transmitter.  Then plug the adapter's other end into a standard AC outlet.

WARNING:  To avoid shock hazard, do not leave the adapter plugged into
          the AC outlet when the barrel plug is not plugged into the
          transmitter.

CAUTION:  The supplied AC adapter supplies 12 volts and delivers at
          200 milliamps.  Its center tip is set to negative and its plug
          correctly fits the transmitter's DC IN jack.  Using an adapter
          that does not meet these specifications could seriously damage
          the transmitter or the adapter.

INSTALLING THE HEADPHONES' BATTERIES

To power the headphones receiver, you need two AAA batteries.  For the
best performance, we recommend alkaline batteries, such as Radio Shack
Cat. No. 23-555.

Follow these steps to install the batteries.

NOTE:  If the battery indicator does not light or lights dimly when you
       set OFF/ON on the headphone receiver to ON, replace the batteries.

1.  To remove the battery compartment cover, slide it in the direction of
    the arrow.

2.  Remove and discard the old batteries (if necessary).

    CAUTIONS:  Never leave dead, old, or weak batteries in the headphones.
               Batteries can leak chemicals and corrode or damage
               electronic circuits.

               Always dispose of old batteries promptly and properly.

3.  Place two fresh AAA batteries in the battery compartment, as indicated
    by the polarity symbols (+ and -) inside the compartment.

4.  Replace the cover.

    NOTE:  If you do not plan to use the headphones for a month or more,
           remove and store the batteries.


(LB/all-09/14/95)