Lowrance electronic X47EX manual Troubleshooting

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Troubleshooting

If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the factory customer service department. It may save you the trouble of returning your unit for repair. For contact information, refer to the last page, just inside the back cover of this manual.

Unit won't turn on:

1.Check the power cable's connection at the unit. Also check the wiring.

2.Make certain the power cable is wired properly. The red wire connects to the positive battery terminal, black to negative or ground.

3.Check the fuse.

4.Measure the battery voltage at the unit's power connector. It should be at least 11 volts. If it isn't, the wiring to the unit is defective, the battery terminals or wiring on the terminals are corroded, or the battery needs charging.

Unit turns on only in simulator mode:

There is a problem with the transducer or the transducer cable. Check the cable for damage.

Unit freezes, locks up, or operates erratically:

1.Electrical noise from the boat's motor, trolling motor, or an accessory may be interfering with the sonar unit. Rerouting the power and transducer cables away from other electrical wiring on the boat may help. Route the sonar unit's power cable directly to the battery instead of through a fuse block or ignition switch

2.Inspect the transducer cable for breaks, cuts, or pinched wires.

3.Check both the transducer and power connectors. Make certain both are securely plugged in to the unit.

Weak bottom echo, digital readings erratic, or no fish signals:

1.Make certain the transducer is pointing straight down. Clean the face of the transducer. Oil, dirt and fuel can cause a film to form on the transducer, reducing its effectiveness. If the transducer is mounted inside the hull, be sure it is shooting through only one layer of

fiberglass and that it is securely bonded to the hull. Do NOT use RTV silicone rubber adhesive or Marine-Texepoxy.

2.Electrical noise from the boat's motor can interfere with the sonar. This causes the sonar to automatically increase its Discrimination or

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Contents X47 and X47EX Page Table of Contents Display Contrast Introduction Installation Preparations Trolling motor installations Transom installationShoot-through hull installations Good location Poor location Location Poor angle Transom Transducer centerline Hull bottom Transom Transducer Assembly and MountingRatchets DotTransom Metal Nut washer RubberWashers BoltHull BottomFlat-bottom hull Deep-vee hull Internal tooth washer TMB-S bracket Bolt Nut Flat washer Trolling Motor Bracket InstallationFull fish arch Proper transducer angle Transducer Orientation and Fish ArchesSHOOT-THRU-HULL Preparation Partial fish arches Transducer aimed Too far backEpoxy the transducer to a solid portion of the hull Spread epoxy here Sand this surface Transducer location High speed Trolling speedPower and Cable Connections For the X47EX 113.5 Millimeters Inches 146.5For Cut along this line Top72.9 173.9137.9 157.9 Millimeter Inch 56.9 76.9 Millimeter Inch 70.3 107.5 82.7Front For Depress ratchets to release Bracket frontCell battery Page Hull Transducer Tie Nylon Cord here SuctionCup Bolt Nut Washer Transducer CupKeyboard Basics OperationMenus MemoryMenu Digital depth Water Temp Full Chart Zoom Enlarged fish arches SensitivityBait school Fish Arches Grayline Fish I.D. Fish arches Fish I.D. symbolsThin or no Grayline Wider Grayline Fishtrack Fish I.D. symbols showing FishTrack depth indicator Chart Scroll SpeedAlarms Display Adjustments Backlights Depth Units of Measure Display ContrastSystem Info Simulator Troubleshooting Page Noise Page In-dash mounting template for Page Lowrance Electronics Full ONE-YEAR Warranty How to Obtain Service… Accessory Ordering Information for all countries Visit our web site
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