Furuno FS-1503 manual Errow Indication, Replacing Fuses

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5.2 Errow Indication

When the FS-1503 detects a fault in the synthesizer unit (frequency unlocked),the frequency or channel number blinks.

5.3 Replacing Fuses

To protect the unit from overcurrent and equipment fault,two 30 A are provided in snap-in holders on the power cable. If a fuse blows,find out the cause before replacing it. If it blows again after replacement,request service.

WARNING

Use the proper fuse.

Fuse rating is shown on the equipment. Use of a wrong fuse can cause equipment damage and void the warranty.

5-3

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Contents Page Page Safety Instructions Table of Contents Features IntroductionSystem Configuration OperationTransceiver Unit Description Rotary controlsKeys Indications ALMTurning the Power On/Off Adjusting the BacklightingTurning the Loudspeaker On/Off Turning the Squelch On/OffSelecting Frequency Turning AGC on/offDirect frequency entry Rx frequencyTx frequency Paired Rx/Tx frequencyUser channels J3EITU telephony channels SSB Sample displays of ITU telephony channelITU Telex channels TLXTuning the antenna Displaying Station NameTransmitting Using the microphone Monitoring transceiver output powerReducing transmitter power Distress Call on 2182 kHzDistress frequencies Distress calls and Distress messageAdjusting RF gain Clarifier adjustmentReceiving MeterReceiving AM broadcasting stations Squelch controlNoise blanker NB Frequency Scan Channel scanUser channels ITU channels 12 Sample scan screenFrequency Sweep MIF Commands MIF commands applicable to the FS-1503Operation of Optional Equipment Telex CommunicationFuruno Nbdp Terminal DP-5/DP-6 Remote Station RB-500 requires optional Remote-B Board IntercomPriority Communication on 2182 kHzChanging System Settings System SetupCustomizing by User Scan/sweep-stop signal level Writing User Channels Maintenance Aural testingTesting the transmitter with a dummy antenna Weekly ChecksDiagnostic Test Sequence of diagnostic testLCD/Keyboard Test & ROM Version No. Confirmation Key and corresponding indicationMaintenance MaintenanceMaintenance con’t Troubleshooting Troubleshooting ListTroubleshooting list con’t Errow Indication Replacing FusesSpecifications GeneralAntenna Coupler Appendix Custom CHANNELS/FREQUENCIESMF band working carrier frequencies ref. US CFR 47 Part MF band SSB working carrier frequencies CH noMHz ITU SSB carrier frequencies ITU RR Appendix ITU CH noFollowing frequencies are factory programmed 12/16 MHz ITU SSB carrier frequencies ITU RR Appendix CH no Ship RX Ship TX Telex Channels MF Band Telex Frequency TableMHz Band ITU Nbdp Telex Frequency Table ITU RR Appendix8001 12001 12/16 MHz Band ITU Nbdp Telex Frequency Table 16111 18/19 MHz Band ITU Nbdp Telex Frequency Table CH NO. Ship RX Ship TX22001 22, 25/26 MHz Band ITU Nbdp Telex Frequency Table Index

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