HP Compaq dc7800 - POST Numeric Codes and Text Messages

USB
Connector and Icon Pin Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Microphone
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Audio_right
Headphone
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Ground
Line-in Audio
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_In_Left
Audio_In_Right
Ground
Line-out Audio
Connector and Icon (1/8” miniphone) Pin Signal
1
2
3
1 (Tip)
2 (Ring)
3 (Shield)
Audio_Out_Left
Audio_Out_Right
Ground
194 Appendix A Connector Pin Assignments