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6. MAINTENANCE, TROUBLESHOOTING
6-4
6.5 Simple Troubleshooting
This section provides simple troubleshooting procedures which the user can follow to
restore normal operation. If you cannot restore normal operation, do not check inside
the unit. Have a qualified technician check the equipment.
Simple troubleshooting
Problem Remedy
You cannot turn on the power. Check for blown fuse.
Check that the power connector is fastened.
Check for corrosion on the power cable con-
nector.
Check for damaged power cable.
Check battery for correct voltage output.
There is no response when a key is
pressed.
Turn off and on the power. If you do not get a
response, the key is damaged. Contact your
dealer for instructions.
The power is on and you operated the
STBY/TX key to transmit. The marks
and letters appear, but no echo ap-
pears.
Check that the antenna cable is fastened.
Tuning is correctly adjusted, but 
sensitivity is poor.
Replace the magnetron. Contact your dealer.
The range is changed, but radar pic-
ture does not change.
Try to hit the RANGE key again.
Turn off and on the display unit.
Poor discrimination in range because
of many echoes from the waves.
Adjust A/C SEA control.
The true motion presentation is not
working correctly.
Check that the setting of [Display Mode] in
the [Display] menu is set to [True Motion].
Check if the heading and position data are in-
put and correct.
The range rings are not displayed. Check that the setting of [Rings Brill] in the
[Brill/Color] menu is set to other than [Off].
Target is not tracked correctly be-
cause of sea clutter.
Adjust A/C SEA and A/C RAIN controls.
www.busse-yachtshop.de | info@busse-yachtshop.de
107


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