52 Solving Problems
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Video and Monitor Problems
If the screen is blank
NOTE: See the monitor documentation for troubleshooting procedures.
If the screen is difficult to read
CHECK THE MONITOR POWER LIGHT — If the power light is off, firmly
press the button to ensure that the monitor is turned on. If the power light is lit
or blinking, the monitor has power. If the power light is blinking, press a key on
the keyboard or move the mouse.
CHECK THE MONITOR CABLE CONNECTION — Check the connector for
bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.) Ensure that the video cable is connected as shown on the setup diagram for
your computer.
TEST THE ELECTRICAL OUTLET — Ensure that the electrical outlet is
working by testing it with another device, such as a lamp.
SWAP THE POWER CABLES — Swap the computer and monitor power
cables to determine if the power cable is defective.
TEST THE VIDEO EXTENSION CABLE (IF USED)—If you are using a
video extension cable and removing the cable solves the problem, the cable is
defective.
TEST ANOTHER MONITOR — If another monitor is available, connect it to
the computer.
CHECK THE DIAGNOSTIC LIGHTS — See page 56.
CHECK THE MONITOR SETTINGS — See the monitor documentation for
instructions on adjusting the contrast and brightness, demagnetizing
(degaussing) the monitor, and running the monitor self-test.
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