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

Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252
Before You Begin
Removal Sequence
Product Description

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
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
Presario 1200 Series
Specifications
Troubleshooting
Pin Assignments
Connectors.
Parallel Connector
Serial Connector
Pin
Keyboard/Mouse
External VGA Monitor
Universal Serial Bus
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
Signal
1 Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Ready to Send
8 Clear to Send
9 Ring Indicator
Pin Signal
1 Data 1
2 Data 2
3 Ground
4 +5 V
5 Clock 1
6 Clock 2
Pin Signal
1 Red Analog
2 Green Analog
3 Blue Analog
4 Not connected
5 Ground
6 Ground Analog
7 Ground Analog
8 Ground Analog
9 Not connected
10 Ground
11 Monitor Detect
12 DDC2B Data
13 Horizontal Sync
14 Vertical Sync
15 DDC2B Clock
Pin Signal
1 +5V
Data -
2
Data +
3
Ground
4
Modem
Pin Signal
1 Unused
2 Unused
3 Tip
4 Ring
5 Unused
6 Unused
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