Specifications

SYMPTOM: Unit smoked.
REASON: A wire from he transducer was accidentally plugged into the Remote Alarm terminal
located next to the power + or - terminals.
HOW TO SOLVE: Return the unit to the factory for repair.
SYMPTOM: Transom mount transducer breaking where the mounting bracket attaches to the
transducer.
REASON: This occurs if the transducer is installed under a fuel overflow vent OR if an adhesive
such as LOCKTITE was used to bond the hardware onto the transducer mounting bracket.
HOW TO SOLVE: The transducer has probably been permanently damaged and is non
repairable. Before installing a replacement transducer, be sure and move the bracket. The
adhesive or petrol has eaten into the plastic and cannot be repaired.
SYMPTOM: A30 or A03 reads out permanently on the display.
REASON: The only way this could occur is if a lug from a transducer wire was accidentally
connected to either the Alarm Up/Down terminal and power was applied.
HOW TO SOLVE: Unfortunately, permanent damage has been done to the main surface mount
“chip”. The instrument head only must be returned for repair.
SYMPTOM: Unit showing “88.8” in the window.
REASON: This failure indicates a logic circuit failure that was probably caused by a poor solder
connection, lack of solder or improper wiring.
HOW TO SOLVE: Return the unit to the factory for repair.
The Shallow Water Sensitivity controls a circuit in the depth sounder that effects the first 10 ft. of
water. It alters the system’s response time in this area only and can be used to compensate for
installation imperfections.
For example:
SHALLOW READINGS: If your instrument occasionally displays random, false shallow readings
such as 3.1, 2.8, and 4.3, you may need to adjust this control.
DEEPER READINGS: If your unit is reading false echoes which are deeper than the actual depth,
you may not have enough sensitivity which can also be corrected by using this control.
“O.O” READINGS: Adjusting this control in extremes too far in either direction, could effect your
readings. For example, if the adjustment is made TOO MUCH, it could actually cause the
unit to give a “O.O” reading at a deeper depth. The true depth could be 30 ft. and if the
control is too extreme in a counter clockwise direction, the readout could be “O.O”.
This adjustment fine tunes the installation of your gauge to the location of the transducer on your
boat and to the waters where you do your boating. It is typically an adjustment that made by
the boast owner since it is performed while the boat is in the water.
TROUBLESHOOTING: SHALLOW WATER SENSITIVITY
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