21
MAINTENANCE AND WARRANTY
TROUBLESHOOTING
1. Nothing happens when I turn the unit on.
Check the power cable connection at both ends. Be sure the cable is connected
correctly to a reliable power source—red lead to positive, black lead to negative
or ground. Ensure the power available at the mount is between 10 and 20
VDC. If the unit is wired through a fuse panel, ensure the panel is powered.
Often accessory fuse panels are controlled by a separate switch or the ignition
switch. Also, often a fuse can appear to be good when in fact is not. Check
the fuse with a tester or replace it with a fuse known to be good.
Check the power connection to the
320
. It is possible to force the power cable
connector into the collector plug incorrectly. If the connector is reversed, the
unit will not work. Examine the contacts on the back of the unit to ensure there
is no corrosion.
Ensure the cables are properly installed into the collector plug and the collector
plug is properly seated into the
320
.
2. The Unit Starts up in simulator mode.
The
320
has the ability to detect that a transducer is connected. If, at power up, a
transducer is not connected, the unit starts up in simulator mode.
Ensure that an appropriate transducer connector is used and the connector is
positioned correctly in the collector plug. Also be sure that the collector plug is
fully seated into the unit. Second, inspect the transducer cable from end to end
for breaks, kinks, or cuts in the outer casing of the cable. Also ensure the
transducer is fully submerged in water. If the transducer is connected to the
unit through a switch, temporarily connect it directly to the unit and try again.
If none of these items identifies an obvious problem, the transducer itself is
probably the problem. Be sure to include the transducer if returning the unit
for repair.
To manually override the simulator, select the Simulator control panel and turn
to off. See control panels for more information.
Содержание TFX320
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