Thales Z-Max Operation And Application Manual page 278

(ii). If external power source is good and the cable is connected to both
the receiver and the power source, there may be a problem with the
cable. If available, try a different power cable. If the new cable works,
the old cable is malfunctioning. Call your local dealer or Thales
Navigation technical support for assistance.
c. You may have a malfunctioning GPS receiver. Call your local dealer or
Thales Navigation technical support for assistance.
Receiver is powered up
Go to Step 2 below.
Step 2. Is the GPS Antenna Connected to the Receiver?
Look at the GPS Antenna Module on top of the GPS Receiver Module.
Antenna Module not connected to receiver
1. Connect the GPS Antenna Module to the GPS Receiver Module.
a. Insert the Antenna Module into the antenna receptacle at the top of the
GPS Receiver Module. Make sure the base of the Antenna Module is
oriented so that the flattened area is lined up with the flattened area of the
receptacle, and the module will easily slide into place.
b. Once in place, twist the threaded collar on the Antenna Module until the
antenna is securely locked in place.
c. Once connected, give the GPS receiver a few seconds to lock onto
satellites.
Antenna connected to receiver
1. Ensure proper connection. The GPS Antenna Module must be securely locked
into place on top of the GPS Receiver Module. Ensure this is the case.
2. Ensure the threaded collar on the Antenna Module is tight and not cross
threaded.
Go to the next step if the problem is not yet resolved.
Step 3. A component may be malfunctioning.
You may have a malfunctioning Antenna Module. Follow these steps to help isolate
which component is causing the problem.
Troubleshooting 255