DELL NT505 ユーザーズマニュアル

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Quick Reference Guide
Sound and Speaker Problems
 
CAUTION: 
Before you begin any of the procedures in this section, follow the 
safety instructions in the 
Product Information Guide
.
No sound from speakers
 
NOTE: 
The volume control in MP3 and other media players may override the 
Windows volume setting. Always check to ensure that the volume on the media 
player(s) has not been turned down or off.
C
H E C K
 
T H E
 
S P E A K E R
 
C A B L E
 
C O N N E C T I O N S
Ensure that the speakers are 
connected as shown on the setup diagram supplied with the speakers. If you purchased 
a sound card, ensure that the speakers are connected to the card.
E
N S U R E
 
T H A T
 
T H E
 
S U B W O O F E R
 
A N D
 
T H E
 
S P E A K E R S
 
A R E
 
T U R N E D
 
O N
See the 
setup diagram supplied with the speakers. If your speakers have volume controls, 
adjust the volume, bass, or treble to eliminate distortion.
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
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.
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
Sound from the 
speakers is 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
Ensure that the electrical outlet is working by 
testing it with another 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
Turn off nearby fans, fluorescent lights, or 
halogen lamps to check for interference.
R
U N
 
T H E
 
S P E A K E R
 
D I A G N O S T I C S
R
E I N S T A L L
 
T H E
 
S O U N D
 
D R I V E R
See "Drivers" in your User’s Guide.
R
U N
 
T H E
  H
A R D W A R E
  T
R O U B L E S H O O T E R
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
Ensure that the headphone cable is 
securely inserted into the headphone connector (see "About Your Computer" on 
page 11).
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
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.