Humminbird ION 10, Руководство по установке

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20 Troubleshooting
T
ROUBLESHOOTING
Before contacting Humminbird Customer Service, please read the following section. Taking the time to review these troubleshooting
guidelines may allow you to solve a performance problem yourself, and therefore avoid sending your unit back for repair.
Control Head Doesn’t Power Up
If your control head doesn’t power up, use the Installation section of this manual for specific confirmation details, making sure that:
• the power cable is properly connected to the control head;
• the power cable is wired correctly, with red to positive battery terminal and black to negative terminal or ground;
• the fuse is operational;
• the battery voltage of the power connector is at least 10 Volts.
Correct any known problems, including removing corrosion from the battery terminals or wiring, or actually replacing the battery if
necessary.
Display Problems
There are several main conditions or sources of possible interference that may cause problems with the quality of the information displayed
on the control head. Look in the following table for some symptoms of display problems and possible solutions:
Finding the Cause of Noise
Electrical noise usually affects the display with many black dots at high speeds, and high sensitivity readings. See the table below for
possible sources that can cause noise or interference.
Possible Source of Noise Isolation
Other electronic devices
Turn off any nearby electronic devices to see if the problem goes away, then turn them
on one at a time to see if the noise re-appears.
The boat’s engine
To determine whether the boat’s engine is the source of the noise, increase the RPMs
while the boat is in neutral and stationary to see if the noise increases proportionately;
if the noise appears when you rev the engine, the problem could be the spark plugs,
alternator, or tachometer wiring. Replace the spark plugs with resistor plugs, install an
alternator filter, or route the control head power cable and transducer cables (depending
on your system configuration) away from the engine wiring.
Display Problems Possible Solutions
The control head loses power at high
speeds.
If the power output of your boat’s engine is unregulated, the control head may be
protecting itself using its over-voltage protection feature. Make sure the input voltage
does not exceed 32 Volts.