3. MAINTENANCE, TROUBLE- SHOOTING
15
3.2
Replacement of Fuse
The fuse on the power cable protects the equipment from overcurrent and equipment
fault. If the fuse blows, find the cause before you replace the fuse. Use the correct
fuse. A wrong fuse can damage the equipment. If the fuse blows again, contact your
dealer for advice.
3.3
Troubleshooting
The table below provides simple troubleshooting procedures to restore normal opera-
tion. If you cannot restore normal operation, contact your dealer for advice.
3.4
Replacement of Magnetron
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.
Type
Code No.
Remarks
FRU-2P5S-FU-5A-B
000-168-869-10
12-24 VDC
Trouble
Remedy
The power cannot be turned on.
• Check if the power/LAN cable is connected to
the power source and the power source is on.
Refer to the section 2.2.
• Check the power cable for damage.
• Check if the fuse has blown.
Picture is not updated or the picture
freezes.
• Check antenna cable.
• If the picture freezes, reboot the display unit.
Marks and characters appear on
the display, but echoes do not ap-
pear.
Check that the antenna cable is fastened.
You changed the range, but the ra-
dar picture does not change.
• Try to zoom in or out the radar display.
• Turn the power off and on.
Signal strength is too low.
Have a technician check the magnetron.
Name
Type
Code No.
Estimated life
Magnetron
80-0691
001-302-480
Appox. 5,000 hours
WARNING
WARNING
Use the proper fuse.
Use of a wrong fuse can cause
fire or damage the equipment.
Fuse holder
How to replace the fuse
Open the fuse holder cover and replace
the fuse. Then close the cover.
Cable assembly
