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Transmitter Setup - Audio Technica PRO 227 Installation And Operation Manual

Pro series professional vhf wireless systems

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Battery Selection
An alkaline 9-volt battery is recommended.
UniPak
Transmitter Battery Installation:
1. Slide off the battery cover as shown in Figure E.
2. Carefully insert a fresh 9-volt alkaline battery, observing
correct polarity as marked inside the battery compartment.
The transmitter housing is designed to prevent incorrect
installation of the battery. Do not force the battery in.
3. Replace the battery cover (Fig. F).
Fig. E
Microphone
Trimmer (MT)
UniPak™
TRANSMITTER
Battery-Save Switch
(under screwdriver clip)
Fig. F
Handheld Transmitter Battery Installation:
1. While holding the upper part of the transmitter body just
below the ball-screen, unscrew the lower body cover and
slide it downward to expose the battery compartment.
2. Lift the white "battery keeper" arm, and insert a 9V battery.
Be certain to observe correct polarity as marked inside the
battery compartment (Fig. G). The transmitter housing is
designed to prevent incorrect installation of the battery.
Do not force the battery in.
3. Replace the lower body cover. Do not overtighten.
Fig. G
Battery Polarity
Diagram
Fig. H
Screwdriver
4
Guitar Trimmer
(GT)
Battery Polarity
Diagram
Battery-Save
Switch
Gain Trimmer
(VR1)

Transmitter Setup

Battery Condition Indicator:
The red battery condition indicator (Fig. I/J) should light strongly
with a fresh battery. As the battery weakens, the indicator will
grow dimmer. When the indicator becomes very dim or goes
out, there is little life left in the battery. Replace it at once for
continued operation of the transmitter.
Battery-Save Switch:
Both transmitters feature battery-save switches (Fig. E/G). As
supplied, the switch is set in the "H" (high) position for maxi-
mum range. Switching to the "L" (low) position increases battery
life by reducing power. (Note: Effective range decreases when
the switch is set at the "L" position.)
Fig. I
Power Switch
Off/Standby/On
INPUT
Input
Connector
UniPak Transmitter Input Connection:
Connect an audio input device (microphone or guitar cable) to
the HRS input jack on the bottom of the transmitter.
Transmitting Antenna:
The UniPak transmitter includes a permanently-attached
flexible antenna. For best results, allow the antenna to
hang freely and full length from the bottom of the transmitter.
If the received signal is marginal, experiment with different
transmitter positions on your body or instrument; or try
repositioning the receiver. Do not attempt to remove,
replace or change the length of the transmitting antenna.
Battery Condition
Indicator
ST
ON
OFF
POWER BATT. ANT
Antenna
Fig. J
Battery Condition
Indicator
BATT.
ST.BY
ON
OFF
Power Switch
On/Standby/Off

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This manual is also suitable for:

Pro 227lPro 227hPro 228