crystal.bk : cryst-4.fb4 Page 98 Monday, March 23, 1998 4:09 AM

Audio Front Panel Connector

4 Technical Information

System Connectors and Switches

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

PC 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

 

 

 

 

Refer to the online guide Using Sound, preloaded on your PC Workstation, for more information about the Audio Front Panel.

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