Connector Pin Assignments - Compaq Presario 305 Maintenance And Service Manual

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Removal Sequence
Product Description

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
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
External VGA Monitor
Connector
Pin Signal
10 Acknowledge*
11 Busy
12 Paper Out
13 Select
14 Auto
Linefeed*
15 Error*
16 Initialize
Printer*
17 Select In*
18-25 Signal Ground
Pin Signal
1 Red
2 Analog
3 Green
4 Analog
5 Blue
6 Analog
7 Not
8 connected
9 Ground
10 Ground
11 Analog
12 Ground
13 Analog
14 Ground
15 Analog
Not
connected
Ground
Monitor
Detect
DDC2B
Data
Horizontal
Sync
Vertical
Sync
DDC2B
Clock
Presario 305 Model
Specifications
Troubleshooting
Pin Assignments
Rear Connectors.
Serial Connector
Connector
Keyboard/Mouse
Connector
Connector
Universal Serial Bus
Connector
Parts Catalog
Battery Operations
Index
Pin Signal
1 Carrier
2 Detect
3 Receive
4 Data
5 Transmit
6 Data
7 Data
8 Terminal
9 Ready
Signal
Ground
Data Set
Ready
Ready to
Send
Clear to
Send
Ring
Indicator
Pin Signal
1 Data 1
2 Clock 2
3 Ground
4 +5 V
5 Clock 1
6 Data 2
Modem
Pin Signal
1 +5V
2 Data -
3 Data +
4 Ground
Pin Signal
1 Unused
2 Unused
3 Tip
4 Ring
5 Unused
6 Unused