User's Manual

14-Troubleshooting Noggin
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14 Troubleshooting
Noggin Smart Systems are designed to minimize user problems; however, all electronic devices
are subject to possible failure. The following are troubleshooting hints in the likelihood of
occurrence if your Smart System fails to operate.
14.1 Power Supply
The most common problem that can occur while trying to run a system is insufficient power. The
battery may be dead or have a low voltage. If the system is being run from AC, there may be a
problem with the AC power supply or adapter.
If there is enough power to run the DVL, the upper red LED on the front of the DVL will light up
when the battery is plugged into the system. If this light is on and the DVL boots up, runs and
displays the main menu, next check that the red light on the connector to the Noggin is on. If this
light is off then there is a problem with the connection from the DVL to the Noggin. Check the
connection and this part of the cable.
If the DVL is running but the Noggin system will not run, go to the main menu and check that
battery voltage in the lower left corner is above 10.2 volts. If not, the battery needs to be
recharged or replaced for the Noggin to run (see below).
If the battery voltage is less than about 10.2 volts, the DVL may not turn on and the upper red
LED will flash or not illuminate.
Check the battery voltage with a voltmeter. Try to do this while the system is still attached to the
Smart System to get a true measure of the voltage while under load (it will be necessary to open
the SmartCart battery case or belt battery case and connect the voltmeter to the positive and
negative battery terminals). If the battery has a low voltage or seems dead, try the system with
another battery (if available), or give the battery a good 12-14 hour charge and try running the
system again.
If the battery does not charge up to 12 Volts or more, it should be replaced.