The Furuno LS is the little brother to the LS with a slightly smaller screen size, but with all of the power and features to satisfy both entry level and more. Furuno LS Fishfinder is a high contrast monochrome fishfinder with a large screen designed for small craft. Furuno LS has 5 display pages including. The Furuno LS is a dual frequency fish finder designed for small pleasure craft. It features a waterproof 5” high-definition silver bright LCD.

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No user-serviceable parts inside.

Establishing the groundLocknutThe ground wire 1. To suppress interference, do the following: Page 13 Adjusting the gainftftftftft60ft30ft15ftThe [GAIN] key adjusts the sensitivity ofthe receiver. Be sure no water leaks in at the transducer or sensor mounting location. The lower thefrequency of the signal, the wider thedetection area. Fire or electrical shock can result if thepower is left on. 1400 chart display and information system ecdis pages.

For any NG, request service. Only qualified personnel should work inside the equipment.


Furuno Ls4100 Fish Finder User Manual

The sounder uses ultrasonic signals todetect bottom conditions. Don’t show me this message again. The waypoint list appears,with the erased waypoint blank. To reset the odometer to zero,clear the memory. The picture is not refreshed whenpicture advancement is stopped.

The water temperature, arrival and speed alarms require appropriate sensors. Adjusting the gainftftftftft60ft30ft15ftThe [GAIN] key adjusts the sensitivity ofthe receiver. The cursorappears along with waypoint entryinstructions. Position cannot be found. Exit Waypoint list 4. Construction 4100 fairing block 3. When choosing a location keep the following in mind: Repeat step 1 to ensure that the angle of the sensor is correct. Registering a waypoint on thescreen1.

Do not open the equipment. Fire, electrical shock or serious injurycan result. Mark the two mountingholes. ,s unitHow to remove the hard cover1. Turn the battery voltage indication appears at the top right corner on the screen on or off.

FURUNO LS4100 Fishfinder

Lower HalfSaw along slopeof hull. Page 25 Requires appropriate nav data. Don’t see a manual you are looking for?

Leave slack in cables to facilitate checking and maintenance. Do not position the sensorfarther into the water than necessaryto avoid increasing drag, spray, andwater noise and reducing boatspeed. By pressing ‘print’ button you will print only current page.


This may require firuno certainamount of experimentation for finetuning at high cruising speeds.

Therefore, the 50 kHz frequency is useful for general detection and judging bottom condition. Os Weak Echoes 1. WAAS is currently in the developmental phase.

Manual – Furuno LS Fishfinder

The start upscreen appears with the maximumbrilliance. The signal line ground is isolated fromthe chassis ground, however the powerline is not insulated. Dual Frequency Display Single frequency display 50 kHz The sounder uses ultrasonic signals to detect bottom conditions.

Therefore, the 50 kHzfrequency is useful for general detectionand judging bottom condition. Menu Operating Procedure 1. Page 19 Registering a waypoint on fruuno. Operation Selects basic display range. All default basic ranges arerestored whenever the depth unit ischanged.