Furuno AIS Transponder FA-50 - Manual (Page 36)

3. MAINTENANCE, TROUBLESHOOTING
3-2
3.2 Replacing the Fuse
The fuse (4A) inside the FA-50 protects it from overcurrent and equipment fault. If the
unit cannot be powered, that is, the PWR (power) LED is off, the fuse may have blown.
If this happens, turn off the power to the FA-50, open the body cover and check the
fuse. If the fuse has blown, find out the reason before replacing it. If it blows again after
replacement, contact a FURUNO agent or dealer for advice.
3.3 Troubleshooting
The troubleshooting table below provides typical operating problems and the means
to restore normal operation. If you cannot restore normal operation, do not open the
shield cover; there are no user serviceable parts inside the transponder.
Part Type Code No.
Fuse (4A) FGMB 125V 4A PBF 000-157-482-10
WARNING
Use the proper fuse.
Use of a wrong fuse can result in damage to the
equipment and cause fire.
Symptom Problem Remedy
Transponder cannot
be powered. Fuse inside the transponder
may have blown. Replace the fuse.
Cannot transmit/re-
ceive • VHF antenna cable connec-
tion may haveloosened.
• Antenna or its cabling may be
damaged.
• Rx channel setting is wrong.
• Check if the cable is firmly
connected.
• Check the antenna and its
cabling for damage.
• Confirm the channel set-
ting.
The message is sent
to wrong ship. Setting of transmission is not
correct. Confirm MMSI.
No position data • GPS antenna may be dam-
aged.
• GPS antenna cable may be
damaged.
• Change the GPS anten-
na.
• Check if the cable is firmly
fastened. If the cable has
damage, change it.