User's Manual

F Troubleshooting
158 SPSx50 Modular GPS Receiver User Guide
Receiver issues
This section describes some possible receiver issues, possible causes, and how to solve
them
.
Issue
Possible cause Solution
The receiver does not
turn on.
External power is too low. Check the charge on the external
battery, and check the fuse if
applicable.
Internal power is too low. Check the charge on the internal
battery.
External power is not properly
connected.
Check that the Lemo connector or
26-pin adaptor is seated correctly,
and that the cable is secured to the
receiver.
Check for broken or bent pins in the
connector.
Faulty power cable. Check that you are using the correct
cable for the port/battery.
Check that the correct battery is
connected to a particular port.
The ports on the SPSx50 receiver are
optimized for use with different
types of battery. The 26-pin
connector is optimized for Trimble
custom external batteries, and the
Lemo port is optimized for external
12 V batteries such as car, motorcycle
or truck batteries.
If the wrong type of battery is
connected to the wrong port, it is
likely that it will cut off earlier than
normal.
Check pinouts with multimeter to
ensure internal wiring is intact.