HP P Class 733/800/866MHz / 1GHz, User Manual

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90 Chapter 4
Technical Information
System Connectors and Switches
Audio Front Panel
Connector The Audio Front Panel Connector, labeled “Audio Front Panel,” is a
10-pin connector that links the system board with the multimedia Front
Panel. This connector directs stereo output to either the front panel
headphone jack or the rear panel stereo jack, as follows:
• When the headphone jack on the Audio Front Panel of the
Workstation is not being used, the audio signal is available on the
rear panel and the internal speakers are active.
• When external speakers are plugged into the rear jack, the audio
signal is directed to the rear jack and the internal speakers are
muted.
• When a headphone is plugged into the headphone jack, the audio
signal is directed to the headphone jack, no sound is available on the
rear panel and the internal speakers are muted.
The Audio Front Panel Connector has the following pin assignments:
Pin Signal I/O
1 Analog Ground
2 Key Way
3 Front Panel input
left IN
4 Front Panel return
left OUT
5 Front Panel input
right IN
6 Front Panel return
right OUT
7 Reserved
8 Reserved
9 Reserved
10 Reserved