Controlling volume 3-7
Adjusting the headphone
volume
You may be able to plug headphones into the headphone
jack on the CD-ROM drive (not available on all systems) or
into the line-out jack on the back of the computer’s system
unit. The line-out jack is marked with the icon .
On some IBM Aptiva PCs, a headphone jack and a
volume control are located on the CD-ROM drive on the
front of the computer’s system unit.
When your headphones are plugged into the
headphone jack on the CD-ROM drive, they will pick up
only the sound coming from an ordinary audio CD in the
CD-ROM drive. The headphones will not pick up other
sounds generated from your computer or any external
device connected to the computer, such as a MIDI
(Musical Instrument Digital Interface) keyboard.
When your headphones are plugged into this jack, use
the volume control on the CD-ROM drive to adjust the
volume of the headphones. This volume control adjusts
the volume of the headphones, but not the speakers. If
you want to turn the speaker volume down while using
the headphones, use the volume control on the speaker.
On all models of the IBM Aptiva PC, the headphones
can be plugged into the line-out jack on the back of the
system unit. This is the same jack you plug your
speakers into. You must disconnect your speakers to
use this jack with your headphones.
If you plug your headphones into the jack on the back of
the system unit, the headphones will pick up all sounds
generated from your computer and any external devices
connected to the computer, such as a MIDI (musical)
keyboard. The headphones will also pick up sound
coming from a CD in the CD-ROM drive.
Note:
The CD-ROM drive in the computer that you
purchased may not include all of these lights and
controls.
Note:
When your headphones are plugged into the jack on the
back of the system unit, you must
control the headphone
volume through the volume control in the multimedia
software on your computer. You cannot
control the
headphone volume from the volume control on the
CD-ROM drive.
When using this jack, a few sounds may not be audible
through the headphones, such as the beep when you turn
on your computer.
v65xahb.book : chap-3.fm Page 7 Friday, January 16, 1998 4:27 PM
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