11 Optional UT-96/UT-105 installation. 11 Optional OPC-617 installation. 12 Antenna. 12 Fuse replacement. 12 Cleaning. 12 BE CAREFUL! The transceiver will become hot when operating continuously for long periods. For U. only CAUTION: Changes or modifications to this transceiver, not expressly approved by Icom Inc. , could void your authority to operate this transceiver under FCC regulations. 4 I SmarTrunk IITM and conventional modes. 13 I SmarTrunk IITM operation. 13 OPTIONAL SmarTrunk IITM OPERATION. 13­15 5 OPTIONS. 16 ii 1 PANEL DESCRIPTION I Front panel VOLUME UP/DOWN KEYS (P. 2) FUNCTION DISPLAY (P. 2) CH UP/DOWN KEYS [ ]/[ ] (P. 3) MICROPHONE CONNECTOR (P. 2) PROGRAMMABLE FUNCTION KEYS [P0],[P1],[P2],[P3] (P. 3) POWER SWITCH (P. 2) 1 PANEL DESCRIPTION VOLUME UP/ DOWN KEYS Push to adjust the audio output level. · Minimum audio level is pre-programmed. 1 I Function display q w e r CH UP/DOWN [ ]/[ ] KEYS · Push to select the operating channel. · Can be programmed for one of several functions by yourdealer. POWER SWITCH Turns the power ON and OFF. · The following functions are available at power ON as options: · Automatic scan start · Password prompt t q TRANSMIT INDICATOR · Appears while transmitting or sending a 5-tone code. · When internal temperature increases to a specific level, the transmit indicator blinks to indicate that the power down circuit has been activated...