Supra LAUNCH 20 - Manual (Page 35)

35 —
© 2006 Skier’s Choice, Inc.
Out of Range Display
If the display indicates three horizontal bars as shown, the
depth sounder indicates an out of range, inaccurate or
incomplete data condition.
An out of range condition occurs when the depth reading is
less than 2.5 feet (3.0 Meters) or greater than 200 feet (60.9
Meters).
Inaccurate or incomplete data will cause an out of range
condition when operating in extremely dirty water, very soft
bottom or at high speeds. A faulty or improper transducer
connection can also cause an out of range error condition.
Troubleshooting
INSTRUMENT DOES NOT TURN ON
1.If applicable, check main power supply fuse to the unit.
If it is blown, replace it with a 1 amp, normal blow fuse.
If in-line fuse is used, clean all corrosion from the fuse
Troubleshooting
INSTRUMENT DOES NOT TURN ON (continued)
housing or replace the fuse holder assembly if
necessary.
2.Check the power cable connection. Be sure that the
unit is connected to a known power source:
RED wire to positive, BLACK wire to negative or ground.
3.Ensure that the power source is powered using a test
light or some other reliable form of testing 12 volt power.
4.If you are sure that the unit is receiving power and is still
not functioning, please contact Customer Service for
assistance.
RANDOM OR FLASHING BOTTOM READING
1.Under certain circumstances, the depth sounder may
not perform at the best of its ability. Extremely dirty
water, very soft bottom, high speeds, deep water, or a
combination of the above will result in incomplete or
inaccurate readings.
2.Check the transducer cable connection on the back of
the unit.
3.Contact Customer Service for assistance if you are
unable to correct the problem.