Williams Sound WIR TX90 Quick Setup Manual page 7

S U
ETTING P THE
Make sure the two "eyes" located on the front label of the receiver (Fig. D) are not covered up when in
use. Do not place the receiver in a pocket or purse or it will not work properly. A variety of earphones,
headphones, or a neckloop telecoil coupler can be used with the RX12-4 Receiver.
S 1:
To install the batteries, open the battery compartment using a coin in the slot in the bottom
TEP
of the receiver. Press two AA batteries into place, observing proper battery polarity.
S 2:
Plug the earphone or headphone into the earphone jack.
TEP
S 3:
Turn the receiver on by rotating the volume control knob to the right.
TEP
S 4:
Select a listening channel (1-4) by rotating the channel control knob. Important: Make sure
TEP
the receiver frequency matches the transmitter frequency!
To avoid draining the battery, make sure the receiver is turned off when not in use. The
"on" indicator LED will flash to indicate a low battery.
FIG. D1
Infrared "Eye"
RX12-4 Front View
E B L :
XPECTED ATTERY IFE
This receiver comes standard with disposable AA Alkaline batteries (BAT 001). Rechargeable AA NiMH
batteries (BAT 026) may also be used (not included).
AA Alkaline Batteries:
AA NiMH Rechargeable Batteries:
Note: Batteries from other suppliers may provide different operating life.
WIR RX12-4 R
IR
Williams Sound
4 channel
Charging
Contacts
60 hours
30 hours/charge.
®
(
ECEIVER OPTIONAL
FIG. D2
Earphone Volume/Off
Jack Control Knob
EAR
RX12-4 Top View
)
Channel Frequency
1 2.3 MHz
2 2.8 MHz
3 3.3 MHz
4 3.8 MHz
On LED Channel Selector
Indicator Rotator Knob
2 3
Volume
1
On
4
OFF
Channel
7