No Sound From Headphones; Video And Monitor Problems; The Screen Is Blank - Dell Dimension YH242 Owner's Manual

D I S C O N N E C T H E A D P H O N E S F R O M T H E H E A D P H O N E C O N N E C T O R
automatically disabled when headphones are connected to the computer's front-panel headphone
connector.
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.
E L I M I N A T E P O S S I B L E I N T E R F E R E N C E
check for interference.
R E I N S T A L L T H E S O U N D D R I V E R
R U N T H E H A R D W A R E
on page 72.

No sound from headphones

C 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
into the headphone connector (see "Front View of the Computer" on page 13).
A D J U S T T H E W I N D O W S V O L U M E C O N T R O L
corner of your screen. Ensure that the volume is turned up and that the sound is not muted.

Video and Monitor Problems

CAUTION:
Before you perform any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
NOTE:
See the monitor documentation for troubleshooting procedures.

The screen is blank

C 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
• Ensure that the monitor cable is connected as shown on the setup diagram for your computer.
• Remove any video extension cables and connect the monitor directly to the computer.
• Swap the computer and monitor power cables to determine if the power cable is defective.
• Check the connectors for bent or broken pins (it is normal for monitor cable connectors to have missing
pins).
62
Solving Problems
— Ensure that the electrical outlet is working by testing it with another
— Turn off nearby fans, fluorescent lights, or halogen lamps to
— See "Reinstalling Drivers" on page 71.
T R O U B L E S H O O T E R — See "Resolving Software and Hardware Incompatibilities"
— Ensure that the headphone cable is securely inserted
— Click or double-click the speaker icon in the lower-right
—
— Sound from the speakers is