132 General Information TM8100/TM8200 Service Manual© Tait Electronics Limited November 20074.10 Visual and Audible IndicationsVisual and audible indicators give information about the state of the radio.Visual indications are provided by the STATUS LEDs, function-key LEDs, andLCD display. The information conveyed by the STATUS LEDs is listed inTable 4.11. The behaviour of the function-key LEDs depends on the waythe function keys are programmed. The LCD display normally displayschannel and user information, or error messages. For more information onthe LCD display during normal operation, refer to the user’s guide.The error messages are listed in Table 6.1 on page 160. Audible indicationsare 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 LEDsLED color LED name Indications MeaningsRed Transmit LED is on The radio is transmittingLED flashes (1) The transmit timer is about to expire(2) The radio has been stunnedGreen Receive andmonitorLED is on There is activity on the current channel, although it mightnot be audibleLED flashes (1) The radio has received a call with valid special signaling(2) The monitor has been activated(3) The squelch override has been activatedAmber Scanning LED is on The radio is scanning a group of channels for activityLED flashes The radio has detected activity on a certain channel andscanning has halted on this channel
