Technical data

Troubleshooting
4-23
DIGITAL PC 3500/5510
Problem Possible Cause Action
Keyboard keys type
incorrectly.
Incorrect language selected. Select the correct language.
Keyboard has failed. If available, try another keyboard. If the
new keyboard operates correctly, replace
the old keyboard following the Customer
Replacement Unit process described in
the
Warranty and Information
booklet.
No response to mouse
activity.
Mouse is not connected. Power down the computer and connect the
mouse.
Mouse is connected to the
keyboard port.
Power down the computer and connect the
mouse to the mouse port.
Computer operation halted. Reboot computer.
Mouse driver not installed. Install the appropriate mouse driver. Refer
to the supplied application software
documentation.
Onboard mouse controller
disabled.
Run the BIOS Setup utility and set the
mouse port option to “Enable.”
Mouse has failed. If available, try another mouse. If the new
mouse operates correctly, replace the old
mouse following the Customer
Replacement Unit process described in
the
Warranty and Information
booklet.
Mouse controller has failed. Replace the main logic board
Mouse sticks. Dirty mouse ball. Remove the mouse ball and clean it. Also
clean the rollers.