Tait TM8100 mobiles, Service Manual

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132 General Information TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
4.10 Visual and Audible Indications
Visual and audible indicators give information about the state of the radio.
Visual indications are provided by the
STATUS
LEDs, function-key LEDs, and
LCD display. The information conveyed by the
STATUS
LEDs is listed in
Table 4.11 . The behaviour of the function-key LEDs depends on the way
the function keys are programmed. The LCD display normally displays
channel and user information, or error messages. For more information on
the LCD display during normal operation, refer to the user’s guide.
The error messages are listed in
Table 6.1 on page 160 . Audible indications
are provided in the form of different tones emitted from the speaker.
The information conveyed by the tones is given in
Table 4.12 on page 133 .
Table 4.11 Visual indications provided by the
STATUS
LEDs
LED color LED name Indications Meanings
Red Transmit LED is on The radio is transmitting
LED flashes (1) The transmit timer is about to expire
(2) The radio has been stunned
Green Receive and
monitor LED is on There is activity on the current channel, although it might
not be audible
LED flashes (1) The radio has received a call with valid special signaling
(2) The monitor has been activated
(3) The squelch override has been activated
Amber Scanning LED is on The radio is scanning a group of channels for activity
LED flashes The radio has detected activity on a certain channel and
scanning has halted on this channel