No Sound From Headphones; Video And Monitor Problems; If The Screen Is Blank - Dell DIMENSION 3000 SYSTEMS DMC Owner's Manual

UN THE SPEAKER DIAGNOSTICS
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E I N S T A L L T H E S O U N D D R I V E R
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R U N T H E H A R D W A R E

No sound from headphones

H E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N
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into the headphone connector (see page 45).
D J U S T T H E
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corner of your screen. Ensure that the volume is turned up and that the sound is not muted.

Video and Monitor Problems

CAUTION:
located in the Product Information Guide.
NOTE:
See the monitor documentation for troubleshooting procedures.

If the screen is blank

H E C K T H E M O N I T O R C A B L E C O N N E C T I O N
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• Ensure that the graphics cable is connected as shown on the setup diagram for your computer.
• 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 if the power cable is defective.
• Check the connector for bent or broken pins. (It is normal for monitor cable connectors to have missing
pins.)
H E C K T H E M O N I T O R P O W E R L I G H T
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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.
T E S T T H E E L E C T R I C A L O U T L E T
device, such as a lamp.
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Solving Problems
— See page 39.
T R O U B L E S H O O T E R
I N D O W S V O L U M E C O N T R O L
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Before you begin any of the procedures in this section, follow the safety instructions
— If the power light is off, firmly press the button to ensure that
— Ensure that the electrical outlet is working by testing it with another
— See page 42.
— Ensure that the headphone cable is securely inserted
— Click or double-click the speaker icon in the lower-right
—