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Installing and Replacing Desktop Board Components
49
Front Panel Audio Header
Figure 23, A shows the location of the front panel audio header. Table 5 shows the pin
assignments and signal names for the front panel audio header.
Table 5. Front Panel Audio Header Signal Names
Pin Signal Name Pin Signal Name
1 PORT 1L 2 GND
3 PORT 1R 4 PRESENCE#
5 PORT 2R 6 SENSE1_RETURN
7 SENSE_SEND 8 KEY (no pin)
9 PORT 2L 10 SENSE2_RETURN
S/PDIF Header
Figure 23, B shows the location of the S/PDIF header. Table 6 shows the pin
assignments and signal names for the S/PDIF connector.
Table 6. S/PDIF Header Signal Names
Pin Description
1 Vcc
2 S/PDIF Out
3 Ground
IEEE 1394a Header
Figure 23, C shows the location of the IEEE 1394a header. Table 7 shows the pin
assignments and signal names for the IEEE 1394a header.
Table 7. IEEE 1394a Header Signal Names
Pin Signal Name Pin Signal Name
1 TPA1+ 2 TPA1-
3 Ground 4 Ground
5 TPA2+ 6 TPA2-
7 +12 V 8 +12 V
9 Key (no pin) 10 Ground