User manual FURUNO LH-3000

[. . . ] LOUD HAILER LH-3000 SAFETY INSTRUCTIONS WARNING Do not open the equipment. Only qualified personnel should work inside the equipment. Do not disassemble or modify the equipment. Fire, electrical shock or serious injury can result. [. . . ] Press the [Intercom Select] key until the indicator lights on the desired intercom station. After a one-second delay, a short tone sounds from the selected intercom station. Press the PTT switch on the microphone and speak into the microphone. Release the PTT switch to listen for a reply from the selected intercom station. If necessary, adjust listening volume with the [LISTEN VOL] control. After completing your conversation, press the [Hail Select] key to return to the standby mode. Note: To call a specific intercom stations while sounding warning signals, see page 17. 2. 8 Receiving a Call from an Intercom Station When an intercom station is calling the main station, the indicator for the calling station flashes on the main station's indicator and a tone sounds while the intercom station operator is pressing the station's calling switch. Automatically selecting a single calling station 1. In the standby mode, press the PTT switch on the microphone to answer the call. The LH-3000 automatically switches to the calling station and the flashing indicator then lights steadily. If necessary, adjust listening volume with [LISTEN VOL] control. After you have finished your conversation, press the [Hail Select] key to return to the standby mode. Automatically selecting multiple calling stations When you receive a call from more than one station, the appropriate intercom station indicators flash and a tone sounds. In the standby mode, press the PTT switch on the microphone. When calls are received simultaneously, the low-number station will be selected first. After you have completed your conversation, press the [Hail Select] key to return to the standby mode. Press the PTT switch on the microphone again and the next low-number station will automatically be selected. After you have finished all intercom conversations, press the [Hail Select] key to return to the standby mode ("ALL" indicator lights). Calling all intercom stations while an intercom voice is selected 1. Press the PTT switch on the microphone and speak into the microphone. All station indicators flash. 12 2. OPERATION Manually selecting a calling station 1. Press the [Intercom Select] key until the indicator lights for the desired station. Press the PTT switch on the microphone and answer the call. Release the PTT switch to listen to the intercom station. [. . . ] Silence/cancel alarm Press any key except AUX or DIM, or turn off the power. Alarm setting/cancel flow 20 3. MAINTENANCE, TROUBLESHOOTING Periodic checks and maintenance are important for maintaining performance. This chapter contains maintenance and troubleshooting instructions to be followed to obtain optimum performance and the longest possible life of the equipment. WARNING Do not open the equipment. Only qualified personnel should work inside the equipment. 3. 1 Preventive Maintenance General checks Check the following monthly. · Check all cabling. [. . . ]