Compaq 1200US Presario Select 1230 Series Maintenance and Service Guide - Page 9
Connector Pin Assignments
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Maintenance & Service Guide Presario 1200 Series Models: 1230 and 1232 | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations 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 (*). Parallel Connector 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 Pin 10 11 12 13 14 15 16 17 18-25 Signal Acknowledge* Busy Paper Out Select Auto Linefeed* Error* Initialize Printer* Select In* Signal Ground Connector Connector Serial Connector Pin 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 Keyboard/Mouse Pin Signal 1 Data 2 Not defined 3 Ground 4 +5 VDC 5 Clock 6 Not defined Connector Connector Connector External VGA Monitor 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 Universal Serial Bus Pin Signal 1 2 3 4 5 6 Modem Pin Signal 1 Unused 2 Unused 3 Tip 4 Ring 5 Unused 6 Unused privacy statement legal notices