Troubles And Causes - Komatsu KOMTRAX TC730 Instruction Manual

Troubles and causes

Trouble
KDTC730 cannot communicate.
GPS signals are not received.
When ACC line is turned ON, KDTC730
does not operate (LED does not
light up or flash at all).
Possible cause
Communication antenna is
not connected.
Antenna cable is broken.
Foreign matter is in
communication antenna
connector.
Radio wave does not reach
antenna because
obstacle around it.
Out of communicable
range.
Power source is not
supplied.
KDTC730 has trouble.
GPS antenna is not
connected.
GPS antenna cable is
broken.
GPS antenna is defective. Replace GPS antenna.
Radio wave does not reach
GPS antenna because of
obstacle around it.
KDTC730 has trouble.
Power source is not
supplied.
Interface connector pins
are wrong.
KDTC730 has trouble.
Remedy
Connect antenna.
Replace antenna cable.
Remove foreign matter.
Install antenna to place where there are no
of obstacles.
Move in communicable range.
Check service power source, GND, and ACC
line.
Replace KDTC730.
Connect GPS antenna.
Replace GPS antenna cable.
Install GPS antenna to place where there are
no obstacles.
Replace KDTC730.
Check service power source, GND, and ACC
line.
Correct interface connector pins.
Replace KDTC730.
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KDTC730