72 Solving Problems
If the screen is blankIf the screen is difficult to read
CHECK THE MONITOR CABLE CONNECTION —
• Ensure that the graphics cable is connected as shown on the setup diagram for
your computer.
If an optional video card is installed, check that the monitor cable is connected to
the card, rather than the video connector on the system board.
• If you are using a graphics extension cable and removing the cable solves the
problem, the cable is defective.
• Swap the computer and monitor power cables to determine whether the power
cable is defective.
• Check the connector for bent or broken pins. (It is normal for monitor cable
connectors to have missing pins.)
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.
TEST THE ELECTRICAL OUTLET —Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
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.
MOVE THE SUBWOOFER AWAY FROM THE MONITOR —If your speaker system
includes a subwoofer, ensure that the subwoofer is at least 60cm (2 ft) away from
the monitor.
book.book Page 72 Friday, April 4, 2008 12:10 PM