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TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TLC-100 90-6R Installation & Operating Instructions
TiL 92RE130 Rev C
4-4
TABLE 4.2
OPERATORS SWITCHES, CONTROLS AND INDICATORS
SWITCHES
CONTROLS &
INDICATORS
FUNCTIONAL DESCRIPTION
POWER ON/OFF
SWITCH
A toggle switch applies the 13.7 volts nominal power supply to the transceiver.
The transceiver is switched to ON in the toggle UP position and is switched OFF
in the toggle DOWN position.
POWER ON LED
INDICATOR
A GREEN LED Indicates when the POWER ON/OFF switch is set to ON and
voltage is applied to the transceiver.
FUSE
A 5 Amp FUSE protects the 13.7 dc volts nominal power supply line.
FUSE BLOWN
RED LED
INDICATOR
A RED LED indicates when the 5-Amp fuse is "blown", and External DC battery or
AC power is present.
SQUELCH
CONTROL
A linear potentiometer determines the squelch threshold level. When the
SQUELCH CONTROL is rotated in the counter-clockwise direction, the
SQUELCH GREEN LED indicates that the squelch is connecting demodulated
audio to the VOLUME control.
SQUELCH
INDICATOR
GREEN LED
A GREEN LED indicates the squelch circuit is connecting demodulated audio
signal to the VOLUME control.
TX ON YELLOW
LED INDICATOR
An AMBER LED indicates when the transceiver is keyed by the microphone
PRESS-TO-TALK (PTT) switch or remote land line, and the transceiver is
operated in the Tx mode. The Tx ON AMBER LED switches OFF, when the
transceiver is operated in the receive mode.
VOLUME
CONTROL
A logarithmic potentiometer determines the audio level applied to the internal
speaker when the transceiver is operated in the receive mode. When the
SPEAKER/PHONE connector is in use the internal loudspeaker is disconnected
and the VOLUME CONTROL sets the audio level applied to the external speaker
or headphone.
MIC/PTT
CONNECTOR
A 5-pin connector functions as Microphone/PTT and Test Connector.
Pin 1 - PTT Signal Line
Pin 2 - Microphone Signal Ground
Pin 3 - Microphone Signal and Microphone DC Supply Line
Pin 4 - AGC test voltage
Pin 5 - Squelch test voltage
MICROPHONE
PTT
PRESS-TO-TALK (PTT) switch determines transceiver operating mode. When the
PTT switch is pressed, the transceiver operates in Tx mode. When the PTT
switch is released, the transceiver operates in Rx mode.
LOCAL/REMOTE
SWITCH
Selects Local or Remote operation (Refer paragraph 2.3) for remote set up
details.
CHAN SWITCH
Performs Chan/Freq Selection of 6 pre-programmed channels.
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