
1TMMagna IIIMagna IIIMagna IIIMagna IIIMagna IIIandandandandandMagna III PlusMagna III PlusMagna III PlusMagna III PlusMagna III PlusINSTALLATION AND
10KEYBOARD BASICSThe unit sounds a tone when youpress any key. This tells you theunit has accepted a command.ON/CLEARUse this key to turn the unit on
11ID feature is on. The depth range displays on the upper left side of thescreen. On the screen at the bottom of the previous page, the range is fro
12menu. In this case, the range is 60 feet. Nowpress the up arrow key to decrease the range,the down arrow key increases the range. Afteryou select
13This means the Magna III is tracking thebottom in a zoom window, always keeping iton the display.Press the up arrow key to decrease thezoom size, pr
14SENSITIVITYThe sensitivity menu lets you control the unit’s ability to pick up echoes. Alow sensitivity level excludes much of the bottom informati
15Grayline ® is adjustable. Since it shows thedifference between strong and weak echoes,changing the level may require a differentsensitivity setting
16The Fish ID feature can’t be used when the Magna III is in the manualmode. If you turn the automatic feature off, the Fish ID feature willautomatic
17DISPLAY MODEThe Magna III has three different screen modes. The Magna III Plus hassix. To change modes, press the MENU key until the “DISP MODE”(D
18DISPLAY MODE - MAGNA III PLUS ONLYCHT 1 (Chart #1)This is the default mode used when the Ma-gna III Plus is first turned on. It has thefollowing fe
19DIG 2 (Digital #2)The digital depth display shows at the top ofthis screen in very large digits. The digitaltemperature, speed, and log shows benea
2Eagle ElectronicsPO Box 669Catoosa, OK 74015TABLE OF CONTENTSINTRODUCTION ...
20ALARMSFISH ALARMThe Fish Alarm sounds a tone when a fishsymbol appears on the screen. To use thefish alarm, press the menu key until the “FISHALARM
21Deep AlarmThe deep alarm adjusts the same as the shallow alarm. Use the “DEEPALARM” menu to adjust the deep alarm. When the bottom signal goesdeep
22decrease it, press the down arrow key. Press the up arrow key to increasethe contrast. The bar graph in the Dark/Light menu box shows a graph ofth
23TRANSDUCER CONE ANGLESThe sound waves from the transducer spread out into the water in acone shaped beam. This looks much like the beam from a flas
24SURVEYING A LAKEThe most successful anglers on any body of water are those who fish itday after day and year after year. Eventually, they learn the
25BOAT'S DIRECTION OF TRAVELACBBCAOne of the best ways to get fish arches is to expand or “zoom” asegment of the water. For example, from 45 to
26Most fish don’t spawn unless the water temperature is within rathernarrow limits. The surface temperature meter built into the Magna Plushelps iden
27IMPORTANT INFORMATION!If your unit is not working, or if you need technical help, please use thefollowing troubleshooting section before contacting
283. The water may be deeper than the sonar’s ability to find the bottom. Ifthe sonar can’t find the bottom signal while it’s in the automatic mode,
294. The boat must be moving at a slow trolling speed to see fish arches. Ifthe boat is motionless, fish stay in the cone, showing on the display as
3SPECIFICATIONSDimensions ... 5.9" W x 5.35" H x 3.4" DInput Voltage ... 10 - 15 vDCCurrent Drain .
30in shallow water, or when the boat is at rest. In nearly all cases, the causeof the malfunction will be the location and/or angle of the transducer
31EAGLE ELECTRONICSFULL ONE-YEAR WARRANTY“We", “our”, or “us” refers to EAGLE ELECTRONICS, a division of LEI, the manufacturer ofthis product. “Y
32Eagle's UPS Return ServiceEagle Electronics and United Parcel Service (UPS) are proud to offer allof our customers free shipping for all units
33This UPS shipping offer is good only in the continental United States (excludes Alaska and Hawaii).KEEP THIS LABEL!YOU WILL NEED IT IF YOU EVER NEED
34SPEED/TEMPSENSOR(Magna III Plus models Only)TRANSDUCER,BRACKET,ANDHARDWAREFUSE HOLDERFUSEPOWER CABLEDISPLAY UNITGIMBAL BRACKETRUBBER WASHERGIMBAL KN
35How to Obtain Service(Canadian Customers Only)We back your investment in quality products with quick, expert service and genuine Eaglereplacement pa
36LITHO IN U.S.A. 988-0106-89EAGLE ELECTRONICS PO BOX 669 CATOOSA OK 74015Your unit is covered by a full one-year warranty. (See inside for comple
4INSTALLATION - BracketYou can install the Magna III on the top of a dash or from an overhead withthe supplied bracket. It can also be installed in th
5POWER CONNECTIONSThe Magna III works from a 12 volt DC system only. For the best results,run the power cable directly to the boat’s battery. Keep t
6SPEED/TEMPERATURE SENSOR INSTALLATION -(Magna III Plus Only)Mount the speed/temp sensor on the boat’s transom in a location where theflow of water is
7MAGNA III PORTABLE ASSEMBLYINSTALLING THE BATTERIESRelease the latch on the front of the battery case. Open the compartmentand install four "D&
8WASHERWASHERNUTBOLTTIENYLONCORDHERESCREWPORTABLE TRANSDUCER ASSEMBLYAssemble the transducer and bracket as shown below. Attach thetransducer to the
9Clean the chosen area of the hull before attaching the suction cup. Locatethe transducer on the hull as shown below. Don't allow the bracket t
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