HP dx7300 HP Compaq dx7300 Business PC Service Reference Guide, 1st Edition - Page 161

Serial Interface, Powered and Non-Powered, Microphone, Headphone, Line-In Audio

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Connector Pin Assignments Serial Interface, Powered and Non-Powered Connector and Icon Pin 1 2 3 4 5 6 7 8 9 Signal Carrier Detect (12V if powered) Receive Data Transmit Data Data Terminal Ready Signal Ground Data Set Ready Request to Send Clear to Send Ring Indicator (5V if powered) USB Connector and Icon Pin Signal 1 +5 VDC 2 - Data 3 + Data 4 Ground Microphone Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_left Power_Right Ground Headphone Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_Left Audio_Right Ground Line-In Audio Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_In_Left Audio_In_Right Ground Service Reference Guide, dx7300 433611-001 A-3

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Service Reference Guide, dx7300
433611-001
A–3
Connector Pin Assignments
Serial Interface, Powered and Non-Powered
Connector and Icon
Pin
Signal
1
2
3
Carrier Detect (12V if powered)
Receive Data
Transmit Data
4
5
6
Data Terminal Ready
Signal Ground
Data Set Ready
7
8
9
Request to Send
Clear to Send
Ring Indicator (5V if powered)
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 (Tip)
Audio_left
2 (Ring)
Power_Right
3 (Shield)
Ground
123
Headphone
Connector and Icon (1/8” miniphone)
Pin
Signal
1 (Tip)
Audio_Left
2 (Ring)
Audio_Right
3 (Shield)
Ground
123
Line-In Audio
Connector and Icon (1/8” miniphone)
Pin
Signal
1 (Tip)
Audio_In_Left
2 (Ring)
Audio_In_Right
3 (Shield)
Ground
123