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