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14 Troubleshooting
154 5700 GPS Receiver User Guide
Reference
The SV Tracking LED is
not flashing.
The receiver is tracking
fewerthanfoursatellites.
Wait until the SV Tracking LED is
flashing slowly.
The radio antenna cable
and GPS antenna cable
are mixed up.
Make sure that the GPS antenna
cable (with the yellow over-mould) is
connected between the yellow TNC
connector marked ANT and the GPS
antenna.
Reference receiver is not
broadcasting.
Port settings between
reference receiver and
radio are incorrect.
Using the Trimble Survey Controller
software, connect to the reference
radio through the receiver. If no
connection is made, connect directly
to the radio and change the port
settings. Try to connect through the
receiver again to ensure that they
are communicating.
Faulty cable between
receiver and radio.
Try a different cable.
Examine the ports for missing pins.
Use a multimeter to check pinouts.
No power to radio. If the radio has its own power supply,
check the charge and connections.
If power is routed through the
receiver, ensure that the receiver’s
external power source is charged
and that power output on Port 3 is
enabled.
Table 14.1 Troubleshooting (Continued)
Problem Possible cause Solution