TruSat Technical Reference Manual
3–2
Situation Cause Action
Green LED remains
ON when monitor is
disconnected from
external power.
Display board malfunction. Replace the Display board.
System board failure. Replace the System board.
Display is blank.
Continuous tone may
sound.
Software or hardware
malfunction.
Press the Alarm Silence button once to cancel the
alarm. Power OFF, then ON again.
Battery is completely depleted.
Charge the battery for up to 30 minutes before
attempting to power ON.
NOTE: After recharging the battery, it may be
necessary to cycle power ON/OFF several times.
Battery failure. Replace the battery pack.
Display board failure. Replace the Display board.
System board failure. Replace the System board.
Monitor will not power
ON.
Battery is completely depleted.
NOTE: The battery can become
completely depleted when the
monitor is unused for several
months, especially if stored at
high temperatures.
Connect the monitor to external power; verify that
the green power light is ON. Charge the battery for
up to 30 minutes before attempting to power ON.
NOTE: After recharging a battery that was
completely depleted, it may be necessary to cycle
power ON/OFF several times.
Battery is disconnected. Connect the battery to the System board.
Battery failure. Check the battery voltage. If it is 3.2 V or less, the
battery has failed; replace the battery.
System board failure. Replace the System board.
Monitor is connected
to external power but
green LED is OFF.
Power cord failure. Check the power cord; replace if necessary.
Line power is disconnected. Check the external connections between the power
source, the power supply, and the monitor.
Check the internal connection of the line power
cable to the System board.
Line power cable is not connected
or is improperly connected.
Check the internal connection of the line power
cable to the System board.
Power supply failure. Check the power supply voltages of the power
supply connector (12 V).
Replace the power supply.
Display board LED malfunction. Replace the Display board.
System board failure. Replace the System board.
Monitor is connected
to external power but
will not power ON.
Monitor is trying to recharge a
depleted or low battery.
Charge the battery for up to 30 minutes before
attempting to power ON.
Monitor is trying to recharge a
battery that is faulty.
Replace the battery.
System board failure. Replace the System board.
To Next Page
Loading...
