Receiver Problems
8-2
P/N: 1023998-01
Troubleshooting
If the batteries are charged, reset the hardware using the Hardware Reset button. See “Receiver
Enclosure—HiPer VR Hardware Reset Button”.
Receiver Problems
The following are some of the most commonly encountered receiver problems.
The Receiver Cannot Establish a Connection to a Computer or External Controller
Cable specific problems:
• The cable is not properly plugged in.
– Unplug the cable, then securely and properly reconnect it to the receiver.
• The cable is damaged.
– Use an undamaged cable. Contact a dealer to replace the cable.
• The USB driver is not installed.
– If you are using a USB cable connection, make sure the USB driver, included on the GPS+
Software CD, is installed on the computer. You can also download the driver from the Topcon
support Website at www.topcontotalcare.com.
Generic problems:
• The receiver port used for connection is not in Command mode.
a. Connect the receiver to a computer and open TRU (see “Connection” in the
Topcon
Receiver Utility
(
TRU) Help
embedded in the software).
b. Click Receiver Settings > Ports.
c. Change the Input Mode for the port used for connection to cmd.
The receiver does not lock on to satellites for a long period of time
• The corresponding receiver options may be disabled or expired (L1/L2, GPS/GLONASS must be
on to track satellites).
– Order a new OAF with the desired options activated to enable or extend validity of the
corresponding receiver options. Contact a dealer or visit the Topcon website for details.
– Refer to the “Receiver Managing” chapter of the
Topcon Receiver Utility
(
TRU) Help
for a
detailed description of options.
The receiver tracks too few satellites
• If the survey is conducted near obstructions (tree canopy, tall buildings, and so forth).
– Make sure that the Multipath Reduction boxes have been enabled in the field data collection
software.
a. Connect the receiver to a computer and open TRU (see “Connection” in the
Topcon
Receiver Utility
(
TRU) Help
embedded in the software).
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