Lowrance LMS-350A, Инструкция по установке и эксплуатации

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partial arch, or a shape similar to an arch if they’re in deep water. Large
fish will arch, but turn the sensitivity up in deeper water to see the arch.
Because of water conditions, such as heavy surface clutter, thermoclines,
etc., the sensitivity sometimes cannot be increased enough to get fish
arches.
One of the best ways to get fish arches is to expand or “zoom” a segment
of the water. For example, using the 2X or 4X zoom feature. The smaller
the segment, the better the screen resolution will be. The zoom feature
expands the echoes, making it easier to see detail. For the best results,
turn the sensitivity up as high as possible without getting too much noise
on the screen. In medium to deep water, this method should work to
display fish arches.
If you see fish signals when the unit is in the manual mode, but don’t get
fish symbols when the Fish I.D. feature is on, try increasing the sensitivity.
areas where fish are likely to be. Even if it’s the first time on the water!
IMPORTANT
SERVICE INFORMATION!
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.
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 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. Re-routing the power and trans-
ducer cables away from other electrical wiring on the boat may help. Route