Troubleshooting; Replacement Of Fuse - Furuno DRS6A X-Class Installation Manual

3. MAINTENANCE, TROUBLE SHOOTING
3.2

Troubleshooting

The table below provides simple troubleshooting procedures to restore normal opera-
tion. If you cannot restore normal operation, contact your dealer for advice.
The multi function display can-
not control the radar.
Marks and characters appear,
but echoes do not appear.
Picture is not updated or the
picture freezes.
You tuned the receiver or in-
creased the gain, but radar
echoes are too week.
You changed the range, but the
radar picture does not change.
Poor discrimination in range.
Range rings are not displayed.
You set the radar in the transmit
state. The "TX screen" appears
momentarily, but the radar soon
goes into stand-by.
3.3

Replacement of Fuse

The 5 A fuse (Type: FRU-2P5S-FU-5A-B, Code No.: 000-168-869-10) in the fuse
holder on the supplied cable assembly protects the antenna unit from overcurrent and
equipment fault. If you cannot turn on the power, check the fuse to see if it has blown.
If the fuse has blown, find the reason before you replace the fuse. If the fuse blows
again after the replacement, contact your dealer.
WARNING WARNING
Use the proper fuse.
Use of a wrong fuse can cause
fire or damage the equipment.
Problem Remedy
• Check that all cables are tightly fastened.
• Check if the radar source setting is correct.
• Check if the fuse of the cable assembly has blown.
• Check that the power supply is compatible with the
voltage rating of the antenna unit (24 VDC).
• Check that the antenna cable is tightly fastened.
• Check the cables for damage.
• Check that all cables are tightly fastened.
• Check the cables for damage.
• If the picture has frozen, reboot the multi function
display.
• The magnetron may required replacement. Contact
your dealer.
• Try to change the range again.
• Reboot the multi function display.
• Adjust the sea control.
• Check if the range rings is turned on in the menu.
• The overload protection has activated. To restore
normal operation, turn off all equipment in the net-
work. Wait a few seconds then turn on all the equip-
ment.
Cable assembly
Fuse holder
How to replace the fuse
Open the fuse holder cover and replace
the fuse. Then close the cover.