3. MAINTENANCE, TROUBLESHOOTING
3-2
3.2 Replacement of Fuse
The transponder unit contains a 8A fuse which protects the equipment from overvolt-
age, reverse polarity and equipment fault. If the power cannot be turned on, the fuse
may be blown. Contact your local dealer for advice.
3.3 Troubleshooting
The troubleshooting table below provides common symptoms of trouble and the
means to rectify them. If you cannot restore normal operation, do not attempt to check
inside the equipment. Refer any repair work to a qualified technician.
Unit Fuse type Specification Code No.
Transponder unit FA-1701 FGMB-S 125V 8A PBF 12 to 24 VDC 000-191-004-10
Symptom Remedy
Power
Cannot turn on the
power.
• Check that the power cable between the transponder and
monitor units for damage.
• Check the power supply.
Transmitting, receiving messages
Cannot transmit or
receiver.
• Check that the VHF antenna cable is firmly fastened.
• Check the VHF antenna for damage.
• For TX messages, try a different TX channel.
CLASS A: See section 1.9.1.
INLAND: See section 2.6.1.
Can transmit but
message is sent to
wrong party.
Check that the[ MSG TYPE] is set to [ADDRESSED] and the
MMSI entered at [TO] is correct.
For CLASS-A, see section 1.9.1.
For INLAND: See section 2.6.1.
Position data
No position data. • Check the GPS antenna for damage.
• Check the GPS antenna cable and its connectors.
WARNING
Use the proper fuse.
Use of a wrong fuse can cause fire or
result in damage to the equipment.
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