Powering Problems; Receiver Problems - Javad ALPHA Operator's Manual

Troubleshooting

Powering Problems

• Clear the NVRAM (see "Clearing the NVRAM" on page 81).
If the problem persists, see the following sections for other solutions.
6.2. Powering Problems
The receiver does not power up.
The battery may be discharged.
• Charge the batteries overnight. See "Powering the Receiver" on page 32.
The receiver may have a defective charger.
If, after connecting an external power source, the receiver still does not power up, contact JAVAd
GNSS Customer Support for advice.

6.3. Receiver Problems

The following are some of the most commonly encountered receiver problems.
Cable specific problems
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 "ALPHA GNSS Receiver" on page 19 and "Connector Specifications" on page A-11
for information on the receiver's connectors.
The cable is damaged.
• Use an undamaged cable. Contact your Dealer to replace the cable.
Generic problems
The receiver port used for connection is not in Command mode.
1. Connect your receiver and a computer using a free port (see "Connecting the Receiver and
a Computer" on page 33) and start TriVU.
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.
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