Connector Pin Assignments - Compaq 1200US - Presario - Celeron 800 MHz Maintenance And Service Manual

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Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1200
Series Portable Computers. For more information on connectors, refer to the section
on Rear Connectors.
NOTE: The signals in all tables of this appendix are considered active high unless
otherwise indicated by an asterisk (*).
Pin Signal
1 Strobe*
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
6 Data Bit 4
7 Data Bit 5
8 Data Bit 6
9 Data Bit 7
* = Active low
Connector
Connector
Connector
Connector
Connector
Maintenance & Service Guide
Presario 1200 Series
Model: 1245
Pin Assignments | Battery Pack Operations
Parallel Connector
Serial Connector
Keyboard/Mouse
External VGA Monitor
Universal Serial Bus
Parallel Connector
Return
Serial Connector
Pin
1
2
3
4
5
6
7
8
9
Return
Keyboard/Mouse
Pin
1
2
3
4
5
6
Return
External VGA Monitor
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Return
Universal Serial Bus
Pin
1
2
3
4
Return
Modem
Pin
1
2
3
4
5
6
Click on a link:
Modem
Pin Signal
10 Acknowledge*
11 Busy
12 Paper Out
13 Select
14 Auto Linefeed*
15 Error*
16 Initialize Printer*
17 Select In*
18-25 Signal Ground
to the top.
Signal
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
to the top.
Signal
Data 1
Data 2
Ground
+5 V
Clock 1
Clock 2
to the top.
Signal
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
to the top.
Signal
+5V
Data -
Data +
Ground
to the top.
Signal
Unused
Unused
Tip
Ring
Unused
Unused