Simple Troubleshooting - Furuno FR-8045 Operator's Manual

6. MAINTENANCE, TROUBLESHOOTING
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.
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 appears.
Tuning is correctly adjusted, but sensitivity
is poor.
The range is changed, but radar picture
does not change.
Poor discrimination in range because of
too many echoes from the waves.
The true motion presentation is not work-
ing correctly.
The range rings are not displayed.
Target is not tracked correctly because of
sea clutter.
6-4
Problem Remedy
• Check for blown fuse.
• Make sure that the power connector is
fastened.
• Check for corrosion on the power cable
connector.
• Check for damaged power cable.
• Check the battery for correct voltage
output.
Turn the power off, then on. If you do not
get a response, the key is damaged. Con-
tact your dealer for instructions.
Make sure that the antenna cable is fas-
tened.
Replace the magnetron. Contact your
dealer.
• Try to press the RANGE key again.
• Turn the display unit off then on.
Adjust the A/C SEA control.
• Make sure that the setting of [Display
Mode] in the [Display] menu is set to
[True Motion].
• Make sure that the heading and position
data are inputted and correct.
Make sure that the setting of [Rings Brill] in
the [Brill/Color] menu is not set to [Off].
Adjust A/C SEA and A/C RAIN controls.