TOA Electronics WM-370 User Manual
[Operating Instructions]
WIRELESS
MICROPHONE
WM-370
Please follow the instructions in this manual to obtain
the optimum results from this unit. We also recommend you keep this manual handy for future reference.
GENERAL DESCRIPTION
Compact and light weight, the TOA WM-370 is a
lavalier type wireless microphone for speech. It
incorporates a uni-directional electret condenser
microphone to minimize feedback, and a com-
pressor/expander system noise reduction circuit
to minimize the influence of high-frequency noise
generated from digital equipment such as
personal computers and word processors.
FEATURES
Internal loop antenna.
Small size, light weight and high reliability.
Continuous operation for 12 hours or more on one
alkaline battery (LR6/1.5V).
Two battery indicators (green and red).
Internal I.D. signal generator for tone squelch.
Compressor/expander system noise reduction circuit.
USER PRECAUTIONS
Take care not to drop the unit on to a hard floor.
Do not flip nor blow into the microphone head.
Avoid placing the unit in areas of extremely high
humidity and temperature.
Never open the unit nor touch its internal components.
Clean the unit's exterior periodically with a soft dry
cloth. If it gets very dirty, wipe first with a soft damp
cloth lightly soaked in a neutral detergent, and then
dry with a soft cloth.
Never use thinner, benzine, or other solvents, which
may damage plastic part of the unit.
Remove the battery if the unit is to be stored for two
weeks or more.
MICROPHONE GAIN CONTROL
Remove a battery to expose the control. Use a
Philips screwdriver to adjust it. The sensitivity
increases as the control is rotated clockwise, and
decreases as rotated counterclockwise. Usually
leave the control intact.
Gain control
TOA Corporation
BATTERY LOADING
HOW TO USE
Use LR6 type alkaline battery.
1. Remove the battery cover by sliding in the direction
indicated by the arrow on the unit surface. (Fig. 1)
Fig.
1
2. Observing correct polarity instructed inside the
battery compartment, insert a battery. (Fig. 2)
1. Verify that the receiver frequency is identical with
the microphone (transmitter) frequency.
2. Plug the microphone cable into the transmitter
assembly. (Fig. 4)
Microphone head
Transmitter
Fig.
4
Fig.
2
3. Replace the cover.
BATTERY REPLACEMENT
1. The alkaline battery LR6 can be continuously used
for approximately 12 hours. (The manganese
battery R6 for approximately four hours.)
2. Battery indicator
When the battery voltage is sufficient, the green
LED lights. The green LED becomes dimmer as
the battery voltage drops, and the red LED lights.
In such a case, renew the alkaline battery LR8
inside an hour or two (renew the manganese
battery R6 inside a half hour.).
Green
Red
LED
LED
3. Fit a microphone clip to a head assembly along a
groove in the assembly, and clip the head assem-
bly to a lapel or necktie, as shown in Fig. 5. The
clip can rotate 360° for attachment from any
direction.
Fig.
5
4. Set the microphone on/off switch to ON, and verify
that the green battery indicator lights.
5. Place a transmitter assembly in a pocket or clip it to
a belt.
6. Set the on/off switch to OFF after use and verify
that the green LED is extinguished.
Fig.
3
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