User manual ICOM IC-F2500

[. . . ] NEVER connect the transceiver to a power source of more than 16 V DC such as a 24 V battery. This connection will ruin the transceiver. NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver might be damaged. [. . . ] The specific switch used to activate the function depends on programming. ¡ CH UP AND DOWN KEYS Select an operating channel. CH UP CH DN ¡ PRIORITY CHANNEL KEYS Push these keys to select priority A or priority B PRI A channel, respectively. PRI B ¡ OPERATING CHANNEL KEYS Select an operating channel directly. CH1 CH2 CH3 ¡ BANK KEY Select and determine a bank number. BANK CH4 ¡ SCAN START/STOP KEY Push this key to start scanning; and push again SCAN A to stop. SCAN B ¡ LOCK KEY Push this key for 1 sec. to lock all programmable LOCK keys except the following: · [CALL] (incl. [CAL A] and [CAL B]), [MONI] and [EMER] keys. NOTE: Place the microphone on hook to start scanning. Take the microphone off hook to stop scanning. 3 PANEL DESCRIPTION ¡ MONITOR KEY Activates one of (or two of) the following functions MONI on each channel independently: · Push and hold the key to unmute the channel (audio is emitted; `Audible' condition). · Push the key to toggle the mute and unmute conditions (toggles `Audible' and `Inaudible'). · Push the key to mute the channel (sets to `Inaudible' only). · User set mode also available via the `Power ON function'. 5 · This transceiver requires version #02 of these units. Do not install version #01, as they are not compatible. · Some PC board modifications are required when installing UT-109 and UT-110. Please refer to `Optional UT-109/UT-110 installation'. (p. 12) · Please contact your Dealer for details. OPERATION I Turning power ON q Push [ ] to turn the power ON. w If the transceiver is programmed for a start up passcode, input the digit codes as directed by your Dealer. · The keys in the table below can be used for password input: · The transceiver detects numbers in the same block as identical. Therefore "01234" and "56789" are same. 2 I Channel selection Several types of channel selection are available. The methods may differ according to your system setup. e When all channel indicator LEDs still blink after inputting 4 digits, the input code number is incorrect. Turn the power off and start over in this case. KEY 0 5 1 6 2 7 3 8 4 9 NON-BANK TYPE: Push [CH UP]/[CH DN] to select the desired operating channel, in sequence; or, push one of the [CH 1] to [CH 4] keys to select a channel directly. [. . . ] e Cut the pattern on the PCB at the TX mic circuit (MIC) and RX AF circuit (DISC) as shown below. r Install the scrambler unit as described in optional UT-108 installation in the page at left. t Return the bottom cover and screws to the original position. Front panel I Optional OPC-617 installation Install the OPC-617 as shown below. DISC MIC OPC-617 Cut off the bushing as in the illustration, when you install the optional OPC-617. OPTIONAL CABLE PIN ASSIGNMENT NOTE: Be sure to re-solder the above disconnected points when you remove the scrambler units. Otherwise no TX modulation or AF output is available. trewq q Dimmer cont. [. . . ]