No sound from headphones, Video and monitor problems, If the screen is blank – Dell Dimension E521 User Manual
Page 47
Solving Problems
47
No sound from headphones
Video and Monitor Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
NOTE:
See the monitor documentation for troubleshooting procedures.
If the screen is blank
C
HECK
THE
HEADPHONE
CABLE
CONNECTION
—
Ensure that the headphone cable is securely inserted
into the headphone connector (see "Front View of the Computer" on page 11).
A
DJUST
THE
W
INDOWS
VOLUME
CONTROL
—
Click or double-click the speaker icon in the lower-right
corner of your screen. Ensure that the volume is turned up and that the sound is not muted.
E
NSURE
THAT
THE
CORRECT
AUDIO
SOLUTION
IS
ENABLED
IN
THE
B I O S
SETUP
PROGRAM
—
See
C
HECK
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.)
C
HECK
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.
T
EST
THE
ELECTRICAL
OUTLET
—
Ensure that the electrical outlet is working by testing it with another
device, such as a lamp.
C
HECK
THE
DIAGNOSTIC
LIGHTS
—
See "Diagnostic Lights" on page 49.
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