HP Vectra VL6 7 User Manual page 13

The multimedia rear panel has an audio Line In jack, an audio Line Out
jack, and a MIDI interface connector ("JOYSTICK"). An additional
headphone jack and an additional microphone jack is also on the rear
panel.
Connecting Audio Accessories (Some Models Only)
NOTE
The internal speaker and the Line Out jack on the rear of your PC
are deactivated when you use the front panel Headphone jack.
The internal speaker is deactivated when you use the Line Out jack.
The audio accessories shown here (audio headset,
speakers, joystick, musical instrument, and hifi
equipment) are not supplied with your PC.
1 Setting Up and Using Your PC
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