Magnetron Life; Simple Troubleshooting - Furuno 1815 Operator's Manual

7.3

Magnetron Life

When the life of the magnetron is reached, no targets appear on the display. If long-
range performance appears to have decreased, contact a FURUNO agent or dealer
about replacement of the magnetron.
Part
Magnetron
7.4

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
power key to transmit. The marks and
characters appear, but no echoes ap-
pear.
Tuning is correctly adjusted, but sen-
sitivity is poor.
You can change the range, but the ra-
dar picture does not change.
Poor discrimination in range because
of many echoes from 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.
Magnetron type
E3571
Simple troubleshooting
Problem
7. MAINTENANCE, TROUBLESHOOTING
Code No.
000-146-867-11 Approx. 2,000 hours
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.
The magnetron may be faulty. Contact your
dealer about replacement of the magnetron.
Reset the power.
Adjust the sea clutter.
• 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 the sea clutter and rain clutter.
Estimated life
7-3