94 DSM 132/132RS Receiver User GuideFigure A.2 GPS reception troubleshooting flowchart

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Yes
Yes
Yes
No
Continue
No
Yes
No
Is the receiver or
AgRemote screen
light on?
Is the screen
text visible?
Check the Home
screen for GPS
reception. Is the
receiver tracking at
least 4 satellites?
Yes
Does the Home screen
display D/3D (for a 3D
position)?
Yes
The GPS reception
appears to be working
correctly. If the problem
persists, contact your
local Trimble Reseller.
See the System
Hardware and Power
Check Guide. When
GPS satellite reception
is resolved. Return to
this guide.
No Check the
screen contrast.
Is the screen
text visible?
No
Make sure that the
receiver / antenna is
located with a clear
view of the sky.
Are you receiving
satellites now?
No
See the OmniSTAR or Thales
Troubleshooting Guide.
If the problem persists,
contact your local
Trimble Reseller.
No
No
Contact your local
Trimble Reseller.
Restore GPS
default values. Turn off the machine
engine (combine or tractor)
but maintain power to the
GPS receiver.
Return to the Home screen
and check GPS reception.
Is the receiver tracking at
least 4 satellites?
Return to the Home
screen and check
GPS reception.
Is the receiver tracking
at least 4 satellites?
No
Yes
Turn on the machine engine
and check the Home
screen. Do the satellites
disappear?
The GPS reception appears
to be working correctly. If
the problem persists,
contact your local Trimble
Reseller.
The problem is unresolved.
Contact your local Trimble
Reseller.
The problem may be
caused by excessive
engine noise.
For information on
reducing engine noise,
see Chapter 2.
If the problem persists,
contact your local
Trimble Reseller.

A.

1GPS Reception Troubleshooting Flowchart