HP Pro 4300 Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Busi - Page 104

Solving Audio Problems

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Certain typed symbols do not appear correct. Cause The font you are using does not support that particular symbol. Solution Use the Character Map to locate and select the appropriate symbol. Click Start > All Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document. Solving Audio Problems If the computer has audio features and you encounter audio problems, see the common causes and solutions listed in the following table. Table 7-6 Solving Audio Problems Sound cuts in and out. Cause Processor resources are being used by other open applications. Solution Shut down all open processor-intensive applications. Sound does not come out of the speaker or headphones. Cause Solution Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make sure that Mute is not selected and use the volume slider to adjust the volume. Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Security > Device Security > System Audio. The external speakers are not turned on. Turn on the external speakers. The audio device may be connected to the wrong jack. Ensure that the device is connected to the correct jack on the computer. The speakers should be plugged into the rear lineout jack and the headphones should be plugged into the front headphone jack. External speakers plugged into the wrong audio jack on a recently installed sound card. See the sound card documentation for proper speaker connection. Digital CD audio is not enabled. Enable digital CD audio. In the Device Manager, right-click on the CD/DVD device and select Properties. Make sure Enable digital CD audio for this CD-ROM device is checked. Headphones or devices connected to the line-out connector Turn on and use headphones or external speakers, if mute the internal speaker. connected, or disconnect headphones or external speakers. Computer is in standby mode. Press the power button to resume from standby mode. CAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. 96 Chapter 7 Troubleshooting Without Diagnostics

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Certain typed symbols do not appear correct.
Cause
Solution
The font you are using does not support that particular
symbol.
Use the Character Map to locate and select the appropriate
symbol. Click
Start
>
All Programs
>
Accessories
>
System Tools
>
Character Map
. You can copy the symbol
from the Character Map into a document.
Solving Audio Problems
If the computer has audio features and you encounter audio problems, see the common causes and
solutions listed in the following table.
Table 7-6
Solving Audio Problems
Sound cuts in and out.
Cause
Solution
Processor resources are being used by other open
applications.
Shut down all open processor-intensive applications.
Sound does not come out of the speaker or headphones.
Cause
Solution
Software volume control is turned down or muted.
Double-click the
Speaker
icon on the taskbar, then make
sure that
Mute
is not selected and use the volume slider to
adjust the volume.
Audio is hidden in Computer Setup.
Enable the audio in Computer Setup:
Security
>
Device Security
>
System Audio
.
The external speakers are not turned on.
Turn on the external speakers.
The audio device may be connected to the wrong jack.
Ensure that the device is connected to the correct jack on the
computer. The speakers should be plugged into the rear line-
out jack and the headphones should be plugged into the
front headphone jack.
External speakers plugged into the wrong audio jack on a
recently installed sound card.
See the sound card documentation for proper speaker
connection.
Digital CD audio is not enabled.
Enable digital CD audio. In the Device Manager, right-click
on the CD/DVD device and select
Properties
. Make sure
Enable digital CD audio for this CD-ROM device
is
checked.
Headphones or devices connected to the line-out connector
mute the internal speaker.
Turn on and use headphones or external speakers, if
connected, or disconnect headphones or external speakers.
Computer is in
standby
mode.
Press the power button to resume from
standby
mode.
CAUTION:
When attempting to resume from
standby
mode, do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you
will lose any unsaved data.
96
Chapter 7
Troubleshooting Without Diagnostics