Dell Dimension 4550 - Manual (Page 57)

Solving Problems 57
Video and Monitor Problems
If the screen is blank
HINT: See the monitor
documentation for
troubleshooting
procedures.
C HE C K T H E M ON I T O R P O W E R L IG H T — 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.
P R E S S T H E M O NI T O R P O W E R BU T T O N — Firmly press the button to
ensure that the monitor is turned on.
C HE C K T H E M ON I T O R C A B L E C O N NE C T IO N — 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.
T E S T T HE EL E CT R I C AL O U T L E T — Ensure that the electrical outlet is
working by testing it with another device, such as a lamp.
S W AP THE P O W E R C A B L E S — Swap the computer and monitor power
cables to determine if the power cable is defective.
T E S T T HE VI D E O EX T E N S IO N CA B LE ( IF U S E D ) — If you are using a
video extension cable and removing the cable solves the problem, the cable is
defective.
T E S T A N O T HE R MO N ITO R — If another monitor is available, connect it to
the computer.
C HE C K T H E D I AG N O S T I C L I G H T S — See page 60.