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2. Connect the RED wire in the harness to a positive (+) 12 Volt switchable
power source (key switch, on/off switch, terminal block, etc).
N
OTICE
:
Never use “Twist-On” or “Automotive” type
connectors. These connectors do not form a solid
electrical connection and are more likely to corrode.
STEP 4
Testing the Display Installation
Before continuing with your installation, you should test the unit to make sure the
power wires are properly attached.
1. Apply power to the unit by turning on the
power source that you’ve attached the red
and black wires to.
2. The buzzer should beep three times while the
display illuminates all the LCD graphics for 2
seconds. “---” will then be shown on the
LCD.
If the display operates as per #2 above, continue to the “Basic Operation”
section.
If the display does not turn ON:
1. Check the power source using a test light or DC volt meter. Make sure there
is 12 volt power where the power harness connects to both the positive and
negative sources.
2. Check the fuse holder assembly with a test light or DC
volt meter. Connect the ground for the test meter or
light to the vessel’s negative power source.
3. Remove the fuse and check for 12 volt power at the
spring located inside the fuse housing that is
connected to the vessel’s power source. If 12 volt
power is present continue to the next step. If power is
not present, return to Step 1.
4. Insert the fuse and check for 12 volt power at the end
of the fuse. If 12 volt power is present continue to
Step C. If power is not present, replace the fuse.
5. Reassemble the fuse housing. Strip back a quarter of
an inch of wire cover on the display side of the fuse
housing and test for 12 volt power. If 12 volt power is
present continue to Step 2.D. If power is not present,
replace the fuse housing assembly.
