Furuno DS-80 MAINTENANCE, Troubleshooting, Maintenance, Preventive maintenance, Fuse replacement

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3 MAINTENANCE, TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

3.1Maintenance

3.1.1 Preventive maintenance

Check the following points regularly to maintain performance.

•Check that the connectors on all units of the system are firmly fastened and free of rust. Clean if soiled or corroded.

•Check that all ground wires are tightly fastened.

•Dust and dirt on the display unit including the screen may be removed with a soft cloth. Do not use chemical cleaners to clean the display unit; they can remove paint and markings.

3.1.2 Transducer maintenance

Marine life (barnacles, etc.) adhering to the transducer face will reduce sensitivity. Periodically remove any marine life from the transducer face with fine sandpaper or a piece of wood.

CAUTION

Do not paint the transducer.

Painting will affect performance.

3.1.3 Fuse replacement

Fuses in the units of the system protect the electrical circuitry from burning by overcurrent. If the equipment cannot be energized check the fuse in the power cable connected to the display unit. Locate the cause before replacing the fuse.

	Unit	Rating,	Type,	Location
	Unit	Qty	Code No.	Location
		Qty	Code No.
			FGMB 1A	Fuse
	Display	1A,	125 VAC,	holder in
	Unit	2 pcs.	000-114-8	power
			05	cable
			FGBO 3A	Inside
	Distribution	3A,	250 VAC	unit
	Box	2 pcs.	000-549-
			021
			FGBO 1A
	Transceiver	1A,	250 VAC,
	Unit	2 pcs.	000-549-
			019

CAUTION

Use the proper fuse.

Use of a wrong fuse can cause fire or equipment damage and void the warranty.

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Contents Doppler Speed LOG 00080889601 Safety Instructions Record of Modifications in this OPERATOR’S Manual Table of Contents This page is intentionally left blank Specifications of the Doppler Speed LOG Safety Precaution Foreword FeaturesForeword System Configuration Distribution BOXPrinciple of Operation Conditions Affecting the Accuracy Remarks on UsageRemarks on Usage Beware of Transducer LocationPower off Turning the Power On/OffPower on Operation of Display UnitContrast Adjusting Contrast, Panel DimmerSelecting a Display Panel dimmerSelecting display method Main Menu OperationDistance Run Operation To enter numerical dataSelect Data Display and press the ENT key Adjusting distance runResetting distance run to zero Press the Omnipad at to select onShip speed average System SettingDisplaying the system menu Speed offset calibrationSpeed data selection Transducer offsetSelect Track Depth and press the ENT key Demonstration Mode System menuOperation of Optional Equipment Digital Indicator DS-830, Distance Indicator DS-840Adjusting dimmer and contrast Selecting a displayCorrection Factor for Analog Display MF-22A-1 Preventive maintenance MAINTENANCE, TroubleshootingMaintenance Transducer maintenanceDoppler speed indication TroubleshootingProblem Probable cause Remedy General GPS speed indicationPress the ENT key. The following display appears Diagnostics, Checking Program NumberControl Indication Output sentences of IEC61162TX1, IEC61162TX2 ports I/O SentencesInput sentences of IEC61162RX port Transmission intervalIEC61162 TX1 port Schematic diagramsIEC61162 RX port Output drive capability Max mAIEC61162 TX2 port GGA Global positioning system GPS fix data Sentence DescriptionTime, position and fix related data for a GPS receiver VTG Course over ground and ground speed Actual course and speed relative to the groundLongitudinal speed astern. * Not used VBW Dual ground/water speedWater-referenced and ground-referenced speed data VLW Distance travelled through the waterDisplay unit DS-800 Parts Location and Parts ListParts Location Distribution box DS-801Transceiver unit DS-810 Parts List Model DS-80 Unit Ref.Dwg C3441-K01-C 2000-01 Block.NoRef.Dwg C7247-K02-A 2000-01 Block.No Noise FilterRef.Dwg C7247-K03-A 2000-01 Block No Calibration Sheet Default settings in bold italic Menu OverviewIndex Distance run