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Dell Inspiron PP23LA Owner's Manual: No Sound From Headphones; Touch Pad Or Mouse Problems; Video And Display Problems; If The Display Is Blank

Dell laptop owner's manual.
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U N T H E
D
E L L
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I A G N O S T I C S
NOTE:
The volume control in some MP3 players overrides the Windows volume setting. If you have been listening
to MP3 songs, ensure that you did not turn the player volume down or off.

No sound from headphones

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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
the headphone connector (see page 22).
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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
of your screen. Ensure that the volume is turned up and that the sound is not muted.

Touch Pad or Mouse Problems

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H E C K T H E T O U C H P A D S E T T I N G S
1 Click the Start button, click Control Panel, and then click Printers and Other Hardware.
2 Click Mouse.
3 Try adjusting the settings.
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H E C K T H E M O U S E C A B L E
and firmly reconnect the cable.
If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer.
T
O V E R I F Y T H A T T H E P R O B L E M I S W I T H T H E M O U S E
1 Shut down the computer.
2 Disconnect the mouse.
3 Turn on the computer.
4 At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it.
If the touch pad operates correctly, the mouse may be defective.
E I N S T A L L T H E T O U C H P A D D R I V E R
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Video and Display Problems

CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.

If the display is blank

NOTE:
If you are using a program that requires a higher resolution than your computer supports, it is
recommended that you attach an external monitor to your computer.
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H E C K T H E B A T T E R Y
depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer.
See "Dell Diagnostics" on page 63.
Ensure that the headphone cable is securely inserted into
Click or double-click the speaker icon in the lower-right corner
Shut down the computer. Disconnect the mouse cable, check it for damage,
— See "Reinstalling Drivers and Utilities" on page 81.
If you are using a battery to power your computer, the battery charge may be
,
C H E C K T H E T O U C H P A D
Solving Problems
79

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