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WIR TX75 PRO Infrared Transmitter
Quick Setup Guide
Determine Transmitter placement
Determine the best location where the TX75c PRO or TX75d PRO will cover
the desired area. Remember, IR signals need a clear line of sight to the
receiver for optimum reception. It is usually better to have the transmitter
located above the height of the receiver users.
The transmitter can be mounted on the wall or ceiling with the included
mounting bracket. An optional microphone adapter is available for mounting
to microphone stands. The threaded connector on the top and bottom of the
transmitter is standard to most camera tripods.
Plug the power supply into the transmitter. Make sure the green power LED
is on. Install the audio input cord of your choice and apply signal to the
WIR TX75 PRO Master Rear View
CH 1 AUDIO
LEVEL INDICATOR
(YELLOW)
SLAVE TRANSMIT
POWER INDICATOR
(YELLOW)
CH 2 AUDIO
LEVEL
INDICATOR
(YELLOW)
MIC
ADJUSTMENT
MIC
IN
POWER
INDICATOR
POWER IN
10300 Valley View Rd • Eden Prairie, MN 55344
800-328-6190 / 952-943-2252 • FAX: 952-943-2174
www.williamssound.com
©2014 Williams Sound • All Rights Reserved
MAN 167D
PHOENIX INPUTS
(2.3) TX-75c (2.8)
(3.3) TX-75d (3.8)
MIC CHANNEL
SELECTOR
SLAVE POWER
INDICATOR
(GREEN)
INDICATOR
LIGHTS
(ON/OFF)
TX75 BUS
OUT TO
SLAVE (1)
TX75 BUS
OUT TO
SLAVE (2)
MAN 167D
Hardware Mounting
Options
Hardware
Mounting
Options
transmitter input 1, 2 or both. The audio level indicator should be blinking at
peak audio levels. Be sure that the receivers are set to the same channel/
frequency used on the transmitter.
CEILING MOUNT
Important: Remember to point the transmitter towards the listening
audience.
BKT 024
Remember: Most objects block infrared light. The transmitter cannot be
concealed behind walls, glass, curtains, etc.
BKT 024
Universal wall / ceiling
mount (included)
Optional WIR TX75-S emitter for Additional Coverage
For larger facilities, additional emitters can be used to increase the total
coverage area. The WIR TX75 PRO is capable of driving two WIR TX75-S
slave emitters. Power, baseband and digital data bus are fed via CAT-5e cable
to each TX75-S slave.
Typical Setup with Slave Emitter
A177
TX75 PRO MASTER
TO SLAVE ONLY
POWER
PHOENIX
WIR TX75
CAT5E
MIC
AC POWER
SOURCE
WIR TX75
MICROPHONE
(ELECTRET)
AUDIO
SOURCE
WALL MOUNT
TX75-S SLAVE #1
(OPTIONAL)
TX75-S SLAVE #2
(OPTIONAL)
BKT 024
A178
FOR MORE DETAILED INFORMATION, PLEASE REFER TO THE INCLUDED MANUAL.
A508
A176
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