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Maintenance and Service Guide Compaq Presario 4900, 5000, & 5100 Series Computers
Home | Product Description | Troubleshooting | Illustrated Parts Catalog
Removal & Replacement | Jumper & Switch Information | Specifications
Models and features
CPU controls and lights
Keyboard controls and lights
Creativity Action Center
CPU rear connectors
Power cord set requirements
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| PRODUCT DESCRIPTION CPU Rear Connectors Connector Pin Assignments Click on an item to see its pin assignments.
Audio line out | Flat panel monitor | Mouse | Serial
Audio line in | Keyboard | Parallel | Speaker/headphone out
CD drive data cable | Microphone | Phone line to phone | USB
Fax/modem | MIDI/joystick | Phone line to wall jack | VGA monitor
Parallel Connector
Pin | Signal | Pin | Signal | Pin | Signal
1 | Strobe* | 7 | Data Bit 5 | 13 | Select
2 | Data Bit 0 | 8 | Data Bit 6 | 14 | Auto Linefeed*
3 | Data Bit 1 | 9 | Data Bit 7 | 15 | Error*
4 | Data Bit 2 | 10 | Acknowledge* | 16 | Initialize Printer*
5 | Data Bit 3 | 11 | Busy | 17 | Select In*
6 | Data Bit 4 | 12 | Paper Out | 18-25 | Signal Ground
* Active low
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
Universal Serial Bus
| Pin | Signal
1 | - Data
2 | +Data
3 | Ground
4 | +5 VDC
Keyboard & Mouse
| Pin | Signal
1 | Data
2 | Unused
3 | Ground
4 | +5 VDC
5 | Clock
6 | Unused
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