Furuno FS-1503 manual Troubleshooting list con’t

Page 35

Table 5-1 Troubleshooting list (con’t)

Trouble	Probable Cause	Remedy

Poor articulation	Wrong class of emission may	Select class of emission same
	be in use. (For example,	as that of incoming signal.
	receiving signal in H3E mode.
	H3E should be used only on
	2182 kHz.)	In Custom or ITU channel
		In Custom or ITU channel
	Receiver detuned.	mode, press the [CLARI/3]
		key then fine tune frequency
		by the FREQ/CH control.

Output power is reduced	Power is automatically reduced	Wait until the unit returns to
to low ("LOW" indication	to protect against overheating	normal condition. Check if fan
blinks)	due to continuous transmission.	is working properly.

Key input is not accepted.	FS-1503 is under control of	"REM" appears when
	external equipment.	controlled by external
		equipment. Suspend operation
		of external operation.

Antenna coupler can’ t	Antenna may be disconnected	Check antenna connection.
tune antenna.	or shorted to ground.
	Antenna is out of tunable	Recommended length is 6 to
	length.	15 meters.
	Poor grounding of the coupler.	Check coupler ground.
	Connection cable loosened or	Check cable.
	disconnected.

Can not tune in a	Missing last numeral at the digit	To tune in 9640 kHz for
broadcast station.	of 1 when trying to tune in the	instance, press [RX], [9], [6],
	station.	[4], [0], [0], [ENT]. Do not
		miss the last [0]; otherwise
		you will set 964.0 kHz.
	Wrong setting of MODE	Select H3E.
	The station is off air.	Select another frequency.
	Frequency is less than	Set ANT FIL to 0.1 to 30
	1.6 MHz, however ANT FIL is	MHz(Set in PA/FIL).
	set to 1.6 to 38 MHz.

5-2

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Contents Page Page Safety Instructions Table of Contents Introduction FeaturesOperation System ConfigurationKeys Transceiver Unit DescriptionRotary controls ALM IndicationsTurning the Squelch On/Off Turning the Power On/OffAdjusting the Backlighting Turning the Loudspeaker On/OffTurning AGC on/off Selecting FrequencyPaired Rx/Tx frequency Direct frequency entryRx frequency Tx frequencyJ3E User channelsSample displays of ITU telephony channel ITU telephony channels SSBTLX ITU Telex channelsTransmitting Tuning the antennaDisplaying Station Name Distress Call on 2182 kHz Using the microphoneMonitoring transceiver output power Reducing transmitter powerDistress calls and Distress message Distress frequenciesMeter Adjusting RF gainClarifier adjustment ReceivingNoise blanker NB Receiving AM broadcasting stationsSquelch control User channels Frequency ScanChannel scan 12 Sample scan screen ITU channelsFrequency Sweep MIF commands applicable to the FS-1503 MIF CommandsFuruno Nbdp Terminal DP-5/DP-6 Operation of Optional EquipmentTelex Communication Communication on 2182 kHz Remote Station RB-500 requires optional Remote-B BoardIntercom PriorityCustomizing by User Changing System SettingsSystem Setup Scan/sweep-stop signal level Writing User Channels Weekly Checks MaintenanceAural testing Testing the transmitter with a dummy antennaSequence of diagnostic test Diagnostic TestKey and corresponding indication LCD/Keyboard Test & ROM Version No. ConfirmationMaintenance MaintenanceMaintenance con’t Troubleshooting List TroubleshootingTroubleshooting list con’t Replacing Fuses Errow IndicationGeneral SpecificationsAntenna Coupler Custom CHANNELS/FREQUENCIES AppendixMF band working carrier frequencies ref. US CFR 47 Part CH no MF band SSB working carrier frequenciesITU CH no MHz ITU SSB carrier frequencies ITU RR AppendixFollowing frequencies are factory programmed 12/16 MHz ITU SSB carrier frequencies ITU RR Appendix CH no Ship RX Ship TX MF Band Telex Frequency Table Telex ChannelsITU RR Appendix MHz Band ITU Nbdp Telex Frequency Table8001 12001 12/16 MHz Band ITU Nbdp Telex Frequency Table 16111 CH NO. Ship RX Ship TX 18/19 MHz Band ITU Nbdp Telex Frequency Table22001 22, 25/26 MHz Band ITU Nbdp Telex Frequency Table Index

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