Humminbird 955C manual Troubleshooting Display Problems, Chartplotter Doesn’t Power Up

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Troubleshooting	Display Problems

Before contacting the Humminbird® Customer Resource Center, please read	There are several main conditions or sources of possible interference that
the following section. Taking the time to review these troubleshooting	may cause problems with the quality of the information displayed on the
guidelines may allow you to solve a performance problem yourself, and	control head. Look in the following table for some symptoms of display
therefore avoid sending your unit back for repair.	problems and possible solutions:

Chartplotter Doesn’t Power Up

If your Chartplotter doesn’t power up, use the Installation Guide that also comes with it for specific confirmation details, making sure that:

•The power cable is properly connected to the Chartplotter control head.

•The power cable is wired correctly, with red to positive battery terminal and black to negative terminal or ground.

•The fuse is operational.

•The battery voltage of the power connector is at least 10 Volts.

Correct any known problems, including removing corrosion from the battery terminals or wiring, or actually replacing the battery if necessary.

Problem

Possible Cause

The control head loses If the power output of your boat’s engine power at high speeds. is unregulated, the control head may be protecting itself using its over-voltage protection feature. Make sure the input

voltage does not exceed 20 Volts.

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Contents 531569-1B 955c ManE.qxp 3/4/2007 503 PM Thank You Table of Contents Menu System Start-Up Options Menu Navigation Menu Tab Views Menu Tab Accessories Menu Tab Series Introduction How GPS and Cartography WorkSoftware Updates Multi-Media Card MMC/SD SlotAccessory Bus Installation OverviewGimbal Mounting the Control Head Control Head InstallationBasic installation tasks that you must perform include 531569-1B 955c ManE.qxp 3/4/2007 503 PM Mounting Screws 531569-1B 955c ManE.qxp 3/4/2007 503 PM 531569-1B 955c ManE.qxp 3/4/2007 503 PM Connecting the Control Head Power Cable to the Boat Follow these steps to stem mount the GPS receiver GPS Receiver InstallationStem Mounting with an Existing 1 14 Thread Stem Access Under Mounting Location No Access Under Mounting Location Finish Routing the Cable Check GPS Receiver OperationTesting the System Installation To test the installationGetting Started Using Your 900 Series Powering Up the Control HeadWhat’s On the Display CartographyView Key POWER/LIGHT KeyKey Functions WAY Cursor Control Key View Preset KeysMenu Key Mark Key Exit KeyInfo Key Goto KeyViews available on your 900 Series are ViewsZoom +/- Keys SecondsBirds Eye Instrument View Chart ViewViews and Readouts Birds Eye Big Digits ViewBirds Eye Instrument View Bird’s Eye Big Digits View Chart/Bird’s Eye Combo View Traveling measured in degrees from NorthChart/Chart Combo View Chart No Readouts View Chart View VoltageCursor Icon Boat Icon Chart Big Digits View Chart Instrument View Cartography Boat Icon RouteScreen Snapshot View Information Box531569-1B 955c ManE.qxp 3/4/2007 503 PM Chart Orientation Viewing CartographyIntroduction to Navigation Waypoints, Routes and Tracks Save, Edit, or Delete a Waypoint Navigate to a Waypoint or Position Add a Waypoint Target or Trolling GridSave, Edit or Delete a Route Save or Clear a Current Track Edit, Delete or Hide Saved TracksMan Overboard MOB Navigation Menu System Start-Up Options Menu Normal Simulator System Status Normal OperationSimulator Self Test Accessory TestSystem Status GPS Diagnostic View Split Position Navigation X-Press MenuActive Side Waypoint Name Cursor to WaypointClear Current Track Save Current TrackSave Current Route Skip Next WaypointTo Cancel MOB Navigation Cancel NavigationCancel MOB Navigation Remove TargetMost recently-created waypoint Select Readouts COG VMG Select Nav Readouts Only on views with 5 selectable readoutsSelectable Data Windows Default Chart View Customized Chart View Delete All Images Screen Snapshot Press MenuDelete Image To delete an imageNavigation Menu Tab Current TrackWaypoints Submenu contains the following menu choices Saved TracksWaypoints Routes Trackpoint Interval Trolling Grid RotationNorth Reference North Reference allows you to have bearingsMap Datum Track Min DistanceTrack Color Range Export All Nav Data Continuous Navigation ModeCourse Projection Line Delete All Nav DataChart Menu Tab Chart Detail LevelSpot Soundings Map BordersLat/Lon Grid Set Simulation Position Navaids on Birds Eye ViewShaded Depth Set Map Offset Clear Map OffsetAlarms Menu Tab Low Battery AlarmAux. Temp. Alarm Temp. AlarmOff Course Alarm Arrival AlarmDrift Alarm Alarm ToneUnits Temp Setup Menu TabUnits Depth Units Speed User ModeUnits Distance LanguageAux. Temp.Offset Triplog ResetRestore Defaults Temp. OffsetDaylight Saving Time Speed CalibrationLocal Time Zone Position FormatDigits Format Time FormatDate Format Nmea Output DemonstrationViews Menu Tab Following views are availableAccessories Menu Tab Using Screen Snapshot531569-1B 955c ManE.qxp 3/4/2007 504 PM Troubleshooting Display Problems Chartplotter Doesn’t Power UpFinding the Cause of Noise Year Limited WarrantyAway from the engine wiring Humminbird Service Policy Returning Your Unit for Service Series Chartplotter Accessories Series includeSpecifications Glossary GPS & Navigation TermsGlossary Glossary Glossary Contact Humminbird