HP Presario 1800 Presario Select 1800 Series Maintenance and Service Guide - Page 9

Maintenance & Service Guide Presario 1800 Series Models: 1825 and 1800T | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations Connector Pin Assignments This section provides connector pin assignment tables for Compaq Presario 1800 Series Portable Computers. For more information on connectors, refer to the sections on Back Connectors and Port Replicator 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 Top of Page Connector Connector Top of Page Connector Top of Page Connector Top of Page Connector Top of Page Connector Top of Page Connector Top of Page Connector Top of Page Port Replicator Connector 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 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 1 2 Data 2 3 Ground 4 +5 V 5 Clock 1 6 Clock 2 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 +5V 10 Ground 11 Monitor Detect 12 DDC2B Data 13 Horizontal Sync 14 Vertical Sync 15 DDC2B Clock Universal Serial Bus Pin Signal 1 +5V 2 Data - Data + 3 Ground 4 Modem Pin 1 Signal Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused TV Out Pin 1 Signal Ground 2 Composite 3 Ground Game Port Pin 1 Signal +5V 2 SWA 3 RBTA 4 GND 5 GND 6 RBTB 7 SWB 8 +5V 9 +5V 10 SWC 11 RBTC 12 RMSO 13 RBTD 14 SWD 15 RMSI S Video Pin 1 Signal Ground 2 Ground 3 SYR 4 SCG Pin Signal Pin Signal 1 Adapter Power 21 Serial Port CTS 2 Adapter Power 22 Serial Port DCD 3 Adapter Power 23 Serial Port DSR 4 Adapter Power 24 Serial Port TXD 5 Adapter Power 25 Serial Port RTS 6 Adapter Power 26 Monitor DDC 7 Not Connected 27 Monitor DDC 8 Printer Data 0 28 Monitor Indicator 9 Printer Data 1 29 V. SYNC 10 Printer Data 2 30 Ground 11 Printer Data 3 31 H.SYNC 12 Printer Data 4 32 Ground 13 Printer Data 5 33 Blue 14 Printer Data 6 34 Ground 15 Printer Data 7 35 Green 16 Lp Indicator 36 Ground 17 Port Replicator Dock 37 Red Indicator 18 Serial Port RXD 38 Ground 19 Serial Port RI 39 Composite TV Out 20 Serial Port DTR 40 Not Connected Top of Page Pin Signal 41 Not Connected 42 Power Cycle 43 Keyboard Clock 44 Keyboard Data 45 Mouse Clock 46 Mouse Data 47 Lp Select 48 Lp Paper End 49 Lp Initialize 50 Lp Busy 51 Lp Error 52 Lp Acknowledge 53 Lp AutoFeed 54 Lp Strobe 55 Joystick Data A 56 Joystick Data B 57 Joystick Data C 58 Joystick Data D 59 Switch A 60 Switch B Pin Signal 61 Switch C 62 Switch D 63 MIDI Input 64 MIDI Output 65 Not Connected 66 USB Power 67 USB Power 68 USB Power 69 USB Power 70 USB A71 USB A+ 72 USB B73 USB B+ 74 5V 75 5V 76 Not Connected 77 S-Video SYR 78 Ground 79 S-Video SCG 80 Ground