Teleflex TFXIDD Operation Manual page 13

MAINTENANCE
TROUBLESHOOTING
2. There is no bottom reading visible on the display.
There are a number of possible causes for this
condition. If the loss of bottom information occurs
only at high boat speeds, then a transducer
adjustment is needed. Check the transducer cable
connection on the back of the unit and ensure that
the cable has not been cut or pinched. Even a
small abrasion in the cable can significantly affect
performance.
3. When in very shallow water, the unit does not
display a continuous depth.
This is normal in extremely shallow water, because
the automatic range control can not lock onto the
bottom in depths of one foot or less.
4. The screen begins to fade out. Images are not
as sharp as normal.
Check the input voltage. The digital depth
gauge will not operate on input voltages
below 10 VDC.
5. The bottom reading disappears during a
hard turn.
This is normal, as the transducer comes out of
the water in a hard turn and will correct itself.
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