Monitor Problems - Lenovo ThinkCentre M83z User Manual

If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see Chapter 11 "Getting information, help, and service" on page 75.
The pointer on the screen does not move smoothly with the mouse
Action: Erratic movement of the mouse pointer is generally caused by a buildup of dirt, oils, and other
contaminants on the ball inside the mouse. Clean the mouse. See "Optical mouse" on page 57 for
instructions.
The fingerprint reader does not work
Action: The following could cause the fingerprint reader not to operate properly:
• Not enrolling your fingerprint correctly.
• Scratching the surface of the reader with a hard, pointed object.
• Scraping the surface of the reader with your nail or anything hard.
• Using or touching the reader with a dirty finger.
• The surface of your finger is very different from when you enrolled your fingerprint.
The wireless keyboard does not work
Action: If the Transceiver Communications LED is on and the wireless Keyboard does not work, restart your
computer. If restarting your computer does not solve the problem, verify that the following conditions are met:
• The batteries are properly installed.
• The batteries still retain their current.
• The wireless Keyboard is located less than ten meters away from the transceiver.
• The transceiver is fully installed.
Action: If the Transceiver Communications LED is not on, reconnect the transceiver and the keyboard.

Monitor problems

Note: Many monitors have status-indicator lights and built-in controls for adjusting brightness, contrast,
width, height, and other picture adjustments. However, the controls vary from monitor type to monitor type.
For information about the status lights and using the controls, refer to the documentation that comes
with your monitor.
Wrong characters appear on the screen
Action: Have the computer serviced. For details, see Chapter 11 "Getting information, help, and service"
on page 75.
The monitor works when you turn on the computer, but goes blank after some period
of computer inactivity
Action: The computer is probably set for energy savings with the power-management feature. If the
power-management feature is enabled, disabling it or changing the settings might solve the problem.
If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical
assistance, see Chapter 11 "Getting information, help, and service" on page 75.
The monitor works when you turn on the computer, but goes blank when you start
some application programs
Actions:
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Chapter 10 Troubleshooting and diagnostics