Simple Troubleshooting - Furuno 1835 Operator's Manual

6. MAINTENANCE, TROUBLESHOOTING
6.4

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.
You cannot turn on the power.
There is no response when a key is
pressed.
The power is on and you operated the
STBY/TX key to transmit. The marks
and letters appear, but no echo ap-
pears.
Tuning is correctly adjusted, but sen-
sitivity is poor.
The range is changed, but radar pic-
ture does not change.
Poor discrimination in range because
of many echoes from the waves.
The true motion presentation is not
working correctly.
The range rings are not displayed.
Target is not tracked correctly be-
cause of sea clutter.
6-4
Simple troubleshooting
Problem Remedy
• 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.
Turn off and on the power. If you do not get a
response, the key is damaged. Contact your
dealer for instructions.
Check that the antenna cable is fastened.
Replace the magnetron. Contact your dealer.
• Try to hit the RANGE key again.
• Turn off and on the display unit.
Adjust A/C SEA control.
• 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.
Check that the setting of [Rings Brill] in the
[Brill/Color] menu is set to other than [Off].
Adjust A/C SEA and A/C RAIN controls.