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To use the Diagnostic feature, select the Diagnostic feature
on the start-up menu on the initial screen. Diagnostic can
also be accessed through the Options menu.
Self Test. Initially, the 150SX will perform a self-test.
This test confirms the operation of all internal
circuitry. At the conclusion of the test, one of two
messages will appear. PASSED indicates the internal
test discovered no failures, FAILED indicates a
significant internal problem was discovered and the
unit requires factory service. A code number appears
that tells repair personnel where the problem is.
Transducer Connection. The first connection tested is
Transducer input. If a transducer is detected, the
message CONNECTED appears. If a series of dashed
lines is shown, no transducer is connected or there is a
problem with the transducer or cable.
If you are using multiple transducers, switch between transducers to confirm
the connections for each.
Voltage Input. Another connection tested is the voltage input, and is
especially helpful in diagnosing input voltage problems. The current input
voltage is displayed. If voltage fluctuations or power supply in excess of 20
VDC or less than 10 VDC is suspected, use the diagnostic screen to confirm
input voltage. Often, small outboard motors do not effectively regulate
voltage when operated at high engine speeds.
Use Diagnostic while running the boat at high speeds to show the voltage
gain. Also, if you are using the 150SX in portable configuration or from the
trolling motor battery, Diagnostic can be used to evaluate the health of the
battery by showing the current voltage.
Total Time. The total time category indicates the total time the unit has
been in use since shipped from the factory. It is normal for some hours to
appear in the total time when the unit is new due to factory testing. While
this is often of interest to the user, it is primarily a diagnostic tool for the
repair technician should the unit need service.
USING THE 150SX
USING THE DIAGNOSTIC