Compaq dx7400 Service Reference Guide - HP Compaq dx7400 Business PC - Page 132
USB, Diskette Drive Power, Microphone, Headphone, Line-in Audio
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USB Connector and Icon Diskette Drive Power Connector and Icon 4 1 Microphone Connector and Icon (1/8" miniphone) 1 23 Headphone Connector and Icon (1/8" miniphone) 1 23 Line-in Audio Connector and Icon (1/8" miniphone) 1 23 122 Appendix A Connector Pin Assignments Pin Signal 1 +5 VDC 2 - Data 3 + Data 4 Ground Pin Signal 1 +5 VDC 2 Ground 3 Ground 4 Reserved (+12 Volts) Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_left Audio_Right Ground Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_left Power_Right Ground Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_In_Left Audio_In_Right Ground
USB
Connector and Icon
Pin
Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Diskette Drive Power
Connector and Icon
Pin
Signal
4
1
1
2
3
4
+5 VDC
Ground
Ground
Reserved (+12 Volts)
Microphone
Connector and Icon (1/8” miniphone)
Pin
Signal
123
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Audio_Right
Ground
Headphone
Connector and Icon (1/8” miniphone)
Pin
Signal
123
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Ground
Line-in Audio
Connector and Icon (1/8” miniphone)
Pin
Signal
123
1 (Tip)
2 (Ring)
3 (Shield)
Audio_In_Left
Audio_In_Right
Ground
122
Appendix A
Connector Pin Assignments