Presario 305 Model
Before You Begin |
| Specifications |
| Parts Catalog |
|
|
|
|
|
|
|
|
|
|
Removal Sequence |
| Troubleshooting |
| Battery Operations |
|
|
|
|
|
|
|
|
| Index |
Product Description |
| Pin Assignments |
| |
|
|
|
|
|
Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 305 Model 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 (*).
|
|
|
|
| Serial Connector | ||
|
|
|
|
| Connector | Pin Signal | |
|
|
|
|
|
| 1 | Carrier |
|
|
|
|
|
| 2 | Detect |
| Parallel Connector |
|
|
| |||
|
|
|
| 3 | Receive | ||
|
|
|
|
|
| ||
|
|
|
|
|
| 4 | Data |
|
|
|
|
|
| 5 | Transmit |
|
|
|
|
|
| 6 | Data |
|
|
|
|
|
| 7 | Data |
Pin | Signal | Pin | Signal |
|
| 8 | Terminal |
|
| 9 | Ready | ||||
1 | Strobe* | 10 | Acknowledge* |
|
| ||
|
|
| Signal | ||||
2 | Data Bit 0 | 11 | Busy |
|
|
| Ground |
3 | Data Bit 1 | 12 | Paper Out |
|
|
| Data Set |
|
|
| Ready | ||||
4 | Data Bit 2 | 13 | Select |
|
|
| |
|
|
| Ready to | ||||
5 | Data Bit 3 | 14 | Auto |
|
|
| Send |
|
|
| Linefeed* |
|
|
| Clear to |
6 | Data Bit 4 | 15 | Error* |
|
|
| Send |
|
|
| Ring | ||||
7 | Data Bit 5 | 16 | Initialize |
|
|
| |
|
|
| Indicator | ||||
|
|
| Printer* |
|
|
|
|
|
|
|
| Keyboard/Mouse | |||
8 | Data Bit 6 | 17 | Select In* |
| |||
| Connector | Pin Signal | |||||
9 | Data Bit 7 | Signal Ground |
| ||||
|
| 1 | Data 1 | ||||
* = Active low |
|
|
|
| |||
|
|
|
| 2 | Clock 2 | ||
|
|
|
|
|
| 3 | Ground |
|
|
|
|
|
| 4 | +5 V |
|
|
|
|
|
| 5 | Clock 1 |
|
|
|
|
|
| 6 | Data 2 |
External VGA Monitor |
|
|
| Modem |
|
|
| ||
Connector | Pin Signal |
| Connector |
|
| Pin Signal | |||
| 1 | Red |
|
|
|
| 1 | Unused | |
| 2 | Analog |
|
|
|
| 2 | Unused | |
| 3 | Green |
|
|
|
| 3 | Tip | |
| 4 | Analog |
|
|
|
| 4 | Ring | |
| 5 | Blue |
|
|
|
| 5 | Unused | |
| 6 | Analog |
|
|
|
| 6 | Unused | |
| 7 | Not |
|
|
|
|
|
|
|
|
|
|
| Universal Serial Bus |
|
|
| ||
| 8 | connected |
|
|
|
|
|
| |
| 9 | Ground |
|
| Connector | Pin Signal |
| ||
| 10 | Ground |
|
|
| 1 | +5V |
| |
| 11 | Analog |
|
|
|
| |||
|
|
|
| 2 | Data - |
| |||
| 12 | Ground |
|
|
|
| |||
|
|
|
| 3 | Data + |
| |||
| 13 | Analog |
|
|
|
| |||
|
|
|
| 4 | Ground |
| |||
| 14 | Ground |
|
|
|
| |||
|
|
|
|
|
|
|
| ||
| 15 | Analog |
|
|
|
|
|
|
|
|
| Not |
|
|
|
|
|
|
|
|
| connected |
|
|
|
|
|
|
|
|
| Ground |
|
|
|
|
|
|
|
|
| Monitor |
|
|
|
|
|
|
|
|
| Detect |
|
|
|
|
|
|
|
|
| DDC2B |
|
|
|
|
|
|
|
|
| Data |
|
|
|
|
|
|
|
|
| Horizontal |
|
|
|
|
|
|
|
|
| Sync |
|
|
|
|
|
|
|
|
| Vertical |
|
|
|
|
|
|
|
|
| Sync |
|
|
|
|
|
|
|
|
| DDC2B |
|
|
|
|
|
|
|
|
| Clock |
|
|
|
|
|
|
|