Topcon GR-5 User Manual

Troubleshooting
GR-5 Operator’s Manual
6-4
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:
D The cable is not properly plugged in.
• Check that the cable connector is attached to the correct
receiver port.
• Unplug the cable, then securely and properly reconnect it to
the receiver.
• See “GR-5 Receiver” on page 1-8 and “Connector
Specifications” on page A-14 for information on the
receiver’s connectors.
D The cable is damaged.
Use an undamaged cable. Contact a Dealer to replace the
cable.
Generic problems:
D The receiver port used for connection is not in Command mode.
1. Connect the receiver and a computer using a free port
(see “Connecting the Receiver and a Computer” on
page 2-21) and start PC-CDU.
2. Click ConfigurationReceiverPorts.
3. Change the Input for the port used for connection to
“Command”.
The receiver does not lock on to satellites for a long period of
time.
D The receiver stores an old almanac.
Update the almanac. See “Collecting Almanacs and
Ephemerides” on page 2-27 for details.

Topcon GR-5 Specifications

General

Brand	Topcon
Model	GR-5
Category	Receiver
Language	English