Page 2 - THANK YOU
THANK YOU Thank you for choosing Humminbird, America’s #1 namein fishfinders. Humminbird has built its reputation bydesigning and manufacturing top-quality, thoroughlyreliable marine equipment. Your Humminbird is designedfor trouble-free use in even the harshest marineenvironment. In the unlikely ev...
Page 3 - TABLE OF CONTENTS
Section 1: INSTALLATION PREPARATION . . . . . . . . . . . . . . . 2 Parts Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . 2Altern...
Page 4 - INSTALLATION PREPARATION; PARTS SUPPLIED
2 INSTALLATION PREPARATION PARTS SUPPLIED PARTS SUPPLIED Before installing your 105SX, please ensure the following parts areincluded in the box: • 105SX fishfinder• Transducer with 20' (6m) of cable and mounting hardware kit• Mounting system and mounting hardware kit• 6' (2m) power cable• Publicatio...
Page 5 - INSTALLATION OVERVIEW; Determining How to Mount the Transducer; Transom Mounted Transducer
3 INSTALLATION PREPARATION INSTALLATION OVERVIEW surface of the water in an area that has smooth water flow - usually onthe transom of the boat. There are several mounting options for thetransducer. Review the following section to determine the method thatworks for you and your boat. Determining How...
Page 6 - ALTERNATE TRANSDUCERS AND MOUNTING METHODS
4 ALTERNATE TRANSDUCERS AND MOUNTING METHODS The 105SX comes with everything necessary for installation and operationon most boats. However, there are several situations which may require adifferent type of transducer. Inboard boats, wood or metal hulls, and sailboats create unique transducer mounti...
Page 7 - TRANSDUCER EXCHANGE
TRANSDUCER EXCHANGE Other transducers are available as replacements for the standardtransducer. You may exchange your new and unassembled transducer foranother type by returning it to the address listed in Customer Support.Some transducers may have additional costs. Refer to the Accessory cata-log o...
Page 8 - HOW SONAR WORKS
USING THE 105SX HOW SONAR WORKS 6 HOW SONAR WORKS Your Humminbird unit uses sonar tolocate and define underwaterobjects, define the bottom terrain, aswell as determine distance. Sonar technology is based on soundwaves. Your Humminbird unit sendsout a sound wave signal. With thissignal it determines ...
Page 9 - SIMULATOR OPERATION
7 USING THE 105SX SIMULATOR OPERATION SIMULATOR OPERATION The 105SX contains a simulator that allows you to use the unit as if youare on the water. The simulator is invaluable for learning how to operatethe 105SX. There are two ways to start the simulator. Ifthe unit is powered off, press and hold t...
Page 10 - WHAT YOU SEE ON-SCREEN; Figure A
If you are using the 105SX in Simulator when no transducer is connected,any selected options are lost when the unit is powered off. The 105SXwill return to Factory Settings, or options selected when last used with atransducer, if no transducer is connected. IMPORTANT: A transducer must be connected ...
Page 12 - WHAT YOU SEE ON SCREEN; Thermocline Second Return
Structure. Structure is defined as any object physically attached to the bottom. The sonar configuration of the 105SX is optimized to give themost accurate depiction of bottom structure possible. Grass, trees,stumps, wrecks or other debris are accurately displayed, however thedepiction of these obje...
Page 13 - CONTROL FUNCTIONS
different species of fish have differentsonar characteristics, so it is not alwayspossible to distinguish fish sizebetween varying species. The signalintensity is “normalized” for depth so asmall fish close to the boat does notappear as a large fish symbol. ID+ adds an additional piece ofinformation...
Page 14 - Menu Heading
12 When powering the unit from a battery such as in portable applications,you can prolong the battery life by using the backlight at a minimum. The three lower buttons, MENU, UP ARROW, and DOWN ARROW worktogether to control the 105SX menu-controlled user functions. Menu. MENU displays a menu on- scr...
Page 15 - All menus use the same
13 Menu Layout. All menus use the same basic layout. The heading at the topdescribes the menu function. The UPARROW and DOWN ARROW symbols tothe left of the menu indicate whichbuttons are available for adjustment. Inmenus that have several possible settings,a range of adjustment indicator shows the ...
Page 16 - MENU FUNCTIONS; Sensitivity at “0”
Menu Functions Sensitivity. The Sensitivity function controls the sensitivity of the sonar receiver. The105SX automatically adjusts the level ofreceiver sensitivity based on a number offactors including the depth of the waterand the level of noise present. Noise can becaused by other electronic devi...
Page 17 - The Depth Range function
15 USING THE 105SX MENU FUNCTIONS After an adjustment is made, the menu disappears and the newsensitivity setting is in affect. If additional time is needed to study amenu, press and hold the MENU button and the menu will remain on-screen indefinitely. If you need to make an additional adjustment, p...
Page 18 - Zoom is similar to Depth; Depth Range
Using manual Depth Range control, youcan view sonar information from thearea near the surface in greater detail. To return to automatic Depth Rangecontrol, press the MENU button untilthe Depth Range menu appears on-screen and use the UP ARROW toselect AUTO. Zoom. Zoom is similar to Depth Range becau...
Page 19 - When the unit is powered off, the Zoom menu returns to Zoom Off.
17 USING THE 105SX MENU FUNCTIONS The Zoom range is shown on the left side ofthe screen and full range information is shownon the right side of the display. Zoom caneither operate automatically, in which theZoom range is constantly adjusted to show thebottom, or manually, in which the user controlst...
Page 20 - The Fish Alarm alerts; Set for large fish only
Depth Alarm. The 105SX contains an audible alarm to warn you ofshallow water depths. The alarm isadjustable to depths of 3' to 99'(30m). When the alarm is enabled,an audible alarm sounds if the waterbeneath the boat is equal to or lessthan the selected alarm depth. Thealarm sounds continuously for a...
Page 21 - Bottom Black View
Bottom Black. There are two selections available: Off and On. Thefactory setting is Off. With this setting,the 105SX displays the bottom usingStructure ID. This allows you todetermine the texture and relativehardness of the bottom. SelectingBottom Black “ON” causes the unit toblacken in the display ...
Page 22 - Triplog provides a running; Raw Sonar ID+ On
20 symbols on-screen. In this casesmaller sonar returns will bedepicted as fish symbols. This isuseful for identifying many smallersonar returns (such as baitfish) asfish symbols. Decreasing the value to a numberless than zero shows fewer fishsymbols on-screen. In this casesmaller sonar returns ared...
Page 23 - Transducer Connection.; The first connection tested is Transducer input.; ADVANCED FEATURES; USING THE DIAGNOSTIC FEATURE
21 voltage from your boat’s electrical system. The time, speed and distance calculations are useful for tracking yourprogress on a trip. The input voltage is useful for determining thecondition of the charging system of the boat. When used in a portableapplication or whenever the 105SX is operated f...
Page 24 - MAINTENANCE AND WARRANTY; MAINTENANCE; The total time category indicates the total time the unit has
22 MAINTENANCE AND WARRANTY MAINTENANCE especially helpful in diagnosing inputvoltage problems. The present inputvoltage is displayed. If voltagefluctuations or power supply in excessof 20 VDC or less than 10 VDC issuspected, use the diagnostic screen toconfirm input voltage. Often, smalloutboard mo...
Page 25 - TROUBLESHOOTING; •If your boat remains in the water for long periods of time, algae and
23 MAINTENANCE AND WARRANTY TROUBLESHOOTING •If your boat remains in the water for long periods of time, algae and other marine growth can reduce the effectiveness of the transducer.Periodically clean the face of the transducer with liquid detergent.Pivoting the transducer up in the bracket may allo...
Page 26 - There is no bottom reading visible on the display.
24 Check the power connection to the 105SX. It is possible to force thepower cable connector into the cable holder incorrectly. If the connectoris reversed, the unit will not work. Examine the contacts on the back ofthe unit to ensure there is no corrosion. Finally, ensure the unit is firmlyseated o...
Page 28 - HUMMINBIRD ONE YEAR FULL WARRANTY; The customer; Humminbird will; WARRANTY
26 can be caused by other electronic devices. Turn off any nearby electronicsand see if the problem goes away. Noise can also be caused by the engine.If engine noise is causing the interference, the problem will intensify athigher RPMs. Increase the engine speed with the boat stationary to isolateth...
Page 29 - SERVICE POLICY
27 MAINTENANCE AND WARRANTY SERVICE POLICY SERVICE POLICY This Service Policy is valid in the United States only. This applies toHumminbird units returned to our factory in Eufaula, Alabama, and issubject to change without notice. All repair work is performed by factory-trained technicians to meetex...
Page 30 - CUSTOMER RESOURCE CENTER
28 CUSTOMER RESOURCE CENTER If you have any questions, call our Humminbird Customer ResourceCenter Hotline: 1-334-687-0503 Throughout the U.S. and Canada, hours are Monday-Friday, 8:15 a.m. to5:00 p.m. Central time. Or visit our web site: www.humminbird.com for Product Support and troubleshooting gu...
Page 31 - SPECIFICATIONS; Drill; Level; PLACE EITHER ARROW; TOP; Remove and use for; Cut and use for Fiberglass Hulls; Transducer bottom; Hull
MAINTENANCE AND WARRANTY SPECIFICATIONS Operating Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 kHz Power Output . . . . . . . . . 2000 Watts (Peak to Peak) - 250 Watts (RMS) Area of Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24° at -10 db Po...
