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5. MAINTENANCE, TROUBLESHOOTING
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5.2 Replacing the Fuse
The 2A fuse inside the unit protects it from overcurrent and equipment fault. If the power cannot
be turned on, have a qualified technician check the fuse. If the fuse has blown, find out the cause
before replacing it. If it blows again, contact your dealer for advice.
5.3 Troubleshooting
This section provides simple troubleshooting procedures which the user can follow to restore nor-
mal operation. If normal operation cannot be restored, do not attempt to check inside the equip-
ment. There are no user-serviceable parts inside.
Simple troubleshooting procedures
Item Type Code No,
Fuse FGMB 125V 2A PBF 000-157-479-10
Symptom Possible trouble Remedy
Power cannot be
turned on • Power at switchboard is turned
off.
• Disconnected or damaged
power cable.
• Blown fuse.
• Check if power is on at switchboard.
• Check if power cable is disconnected
or damaged.
• Have a qualified technician check the
fuse.
Data is not received
from SC-30 • Signal cable between the SC-
30 and this equipment is dam-
aged or disconnected.
• SC-30 is no received satellite
signal.
• Check if sensor cable is disconnect-
ed or damaged.
• See the SC-30's operator's manual.
Data is not received
at external equip-
ment • Disconnected or damaged in-
terconnection cable.
• Output settings may be incor-
rect.
• Check if cable is disconnected or
damaged.
• Have a qualified technician check the
settings.
Heading, pitch or roll
data is not correct • Offsets entered in this equip-
ment may be incorrect.
• Have a qualified technician check the
settings.