AgGPS 252 Receiver User Guide 49
Troubleshooting Flowcharts
Figure 6.3 Using AgRemote to troubleshoot GPS reception (third-party device attached)

S

T

A

R

T

H

E

R

E

Yes
Yes
Yes
No
Yes
No
No No
Yes
No
Continue
Yes
Continue
Yes
No
No
Continue
No
No
Yes
Is the AgRemote
screen on?
Is the text visible on
the receiver or
AgRemote screen?
Check the Home screen
for GPS reception. Is the
receiver tracking at least
4 satellites?
If applicable, does the
device display DG
(for a 3D position)?
Make sure that the
cable is securely
connected from the
device to the receiver.
Your GPS reception
appears to be
working correctly. If
the problem persists,
contact your local
Trimble Reseller.
See the system
hardware and power
flowchart.
When the GPS
reception is resolved,
return to this flowchart.
Make sure that the
receiver/antenna is
located with a clear
view of the sky.
Is the receiver now
tracking at least
4 satellites?
Check that the receiver
is configured correctly
for input/output
communications.
Does the device
display DG?
Contact your local
Trimble Reseller.
Restore GPS
default values.
Return to the Home
screen and check
GPS reception.
Are you receiving at
least 4 satellites?
See the OmniSTAR VBS
or RTK flowchart.
If the problem persists,
contact your local Trimble
Reseller.
Does the receiver
Home screen
display D/3D?
The data/power cable
may be faulty. Contact
your local Trimble
Reseller.
Turn off the machine engine
(combine or tractor) but
maintain power to the GPS
receiver. Wait five minutes.
Return to the Home screen
and check GPS reception.
Is the receiver tracking at
least 4 satellites?
Turn on the machine engine
and check the Home
screen. Do the satellites
disappear?
Your 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 3.
If the problem persists,
contact your local
Trimble Reseller.
Yes
Yes
No

Ag252_100B_UserGuide_ENG.book Page 49 Thursday, July 28, 2005 4:06 PM