Furuno Essential Maintenance and Troubleshooting for Your Fish Finder

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3.MAINTENANCE, TROUBLESHOOTING

WARNING

ELECTRICAL SHOCK HAZARD

Do not open the equipment.

Only qualified personnel should work inside the equipment.

3.1 Maintenance

Regular maintenance is essential for good performance. Checking the items listed in the table below monthly will help keep your equipment in good shape for years to come.

	Checking

Item	Action

Transducer	Check cable for damage.
cable

Power cable,	Check that they are tightly
transducer	fastened. Refasten if
cable plug	necessary.

Display unit	Check for corrosion. Clean
ground	if necessary.
Power supply	Check voltage. If out of
voltage	rating correct problem.

3.3Transducer Maintenance

Marine life on the transducer face will result in a gradual decrease in sensitivity. Check the transducer face for cleanliness each time the boat is dry-docked. Carefully remove any marine life with a piece of wood or fine-grade sandpaper.

3.4 Replacing the Fuse

The fuse in the power cable protects the system from reverse polarity of the power supply and equipment fault. If the fuse blows, find the cause before replacing it. Use only a 1A fuse (61NM-125V, 1A, or equivalent FGBO-A, AC125V, 1A, Code No. 000-549-061). Using the wrong fuse will damage the unit and void the warranty.

WARNING

Use the proper fuse.

Fuse rating is shown on the equipment. Use of a wrong fuse can result in fire and damage the equipment.

3.2Cleaning the Display Unit

Dust or dirt on the display unit can be removed with a soft cloth. If desired, a water-moistened cloth may be used. Use special care when cleaning the LCD since it scratches easily. Do not use chemical cleaners to clean the display unit - they can remove paint and markings.

3.5 Battery Voltage Alert

A battery icon appears when the battery voltage is too high or too low.

	Battery icon and meaning

Icon	Meaning
	Voltage is lower than 10 VDC. If the
	voltage goes below 9 V, the equipment
	is automatically turned off.

	Voltage is higher than 16.5 VDC. If the
	voltage goes higher than 17.5 V, the
	equipment is automatically turned off.

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Contents Echo Sounder 00080926502 Table of Contents Do not open the equipment Use the proper gain settingDo not disassemble or modify the equipment Use the proper fuseUse the specified power cable Safety Instructions for the InstallerForeword FeaturesWord to LS-6100 Owners IiiSystem Overview System configuration Equipment listsStandard supply Name Type Code No Qty Remarks Optional equipment Name Type Code No Qty RemarksHow to remove the hard cover Turning the Power On/OffOperation Control DescriptionBrilliance/contrast adjustment window Adjusting Display Contrast, BrillianceMode selection window Choosing a Display, FrequencyMarker-zoom display Single frequency displayDual frequency display Bottom-lock display Bottom-zoom displayNav data displays Bottom-zoom displayAutomatic Operation Menu Operating ProcedureHow automatic operation works Choosing automatic operationManual Operation Choosing the manual modeRange offset Gain offsetChoosing Picture Advance Speed Adjusting the gainUnit Basic Range Shifting the rangeScope Display Measuring DepthSuppressing Low Level Noise Suppressing InterferenceClutter appearance Forms of interferenceWhite Line Erasing Weak EchoesWaypoints 49.6Registering waypoint from the waypoint list Setting destination waypointProg Key Using the Prog keyEditing waypoints Erasing waypointsAlarm description AlarmsActivating an alarm Picture Color HueAlarm menu Depth, temperature, speed setting windowAlarm options Fish level optionsResetting Trip Distance Setting the DraftHow the alarm works Gain CompensationNav data window and item displayable Setting Up Nav Data DisplaysNAV Data Setup window Nav data displays 30 00.065N130 00.574E Water temperature display wide, F System & Installation MenusSystem Menu System menusNav window water temperature and speed Installation menu Installation MenuWaas options window Clear memory displayBottom level display MAINTENANCE, Troubleshooting Diagnostics TroubleshootingTroubleshooting table If… Then check …Test patterns Test PatternThru-hull Mount Transducer InstallationDisplay Unit Typical thru-hull mount transducer installations Thru-hull mount transducer mounting Dimensions millimetersAcceptable transducer mounting locations Suitable transducer mounting locationsTransom mount transducer Mounting locations Transom Mount TransducerConstruction of fairing block Transom mount transducer TapeInside-hull Transducer Optional Triducer Pre-test for speed and temperatureFinal preparation Tools and materials neededHeight required at mounting location Installation of bracketMounting location on single drive boat Positioning the template10 11 transom angle Transom AdjustingAngle Shim with Taper down Taper up Parallel Transom angleCable routing Attaching the sensor to the bracketAttaching the sensor to the bracket Wiring Optional Water Temperature/Speed SensorWater temperature/speed sensor Establishing the groundPin arrangement on Nmea port Optional equipmentWater temp/speed sensor Connection of converterFeeding data to RD-30 via the LS-6100 IEC 61162-1 Data SentencesWind sensor Specifications of the Echo Sounder LS-6100 Page