Motorola VC5090 用户手册

Maintenance and Troubleshooting

9 - 3

Optional scanner does 
not operate.

Scanner is not properly connected to 
the vehicle computer.

Connect the scanner to the COM1 or COM2 
port. Ensure the proper COM port is selected in 
the SerialWedge application, see 

. If the problem 

continues, refer to the scanner Product 
Reference Guide.

SerialWedge application is not 
enabled or set to the correct COM 
Port.

Ensure that the SerialWedge application is 
enabled and set to the correct port. See 

No sound is heard when 
you tap the touchscreen 
or press a key.

Volume is turned down.

Adjust the volume in the Control Panel.

Application currently running disabled 
the sound.

Configure the application to enable the sound.

Faulty speaker.

Contact Motorola Enterprise Mobility Support. 
See 

Missing pixels on the 
display.

Faulty LCD.

Contact Motorola Enterprise Mobility Support. 
See 

COM1 or COM2 port is 
not working.

Another application, ActiveSync or 
SerialWedge is using the port.

Stop the application using the port, disconnect 
the ActiveSync cable from the host, or change 
the SerialWedge COM port setting.

No response when 
ActiveSync is initiated.

ActiveSync cable not connected 
properly.

Connect the ActiveSync cable.

ActiveSync is not configured properly.

Configure ActiveSync in the Control Panel. See 

No keys are working on 
the optional or built-in 
keyboard.

The optional keyboard is not properly 
connected to the vehicle computer.

Check the cable connections between the 
keyboard and the vehicle computer.

The application does not require 
keyboard input.

Configure the application to use the keyboard.

Vehicle computer is not responding.

Warm boot the vehicle computer.

COMM LED is off.

Lost network connection.

If problem continues, contact Motorola 
Enterprise Mobility Support. See 

.

COMM LED is turned off.

Enable the COMM LED using the Control 
Panel. See