Compaq 1694, 1687, 1685, 1683, 1688, 1693, 1692, 1690 Connector Pin Assignments, Connector Pin Signal

Presario 1600 Series

Models: 1683, 1685, 1687, 1688, 1690, 1692, 1693, and 1694

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 Series 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 (*).

●Parallel Connector

●Serial Connector

●Keyboard/Mouse

●External VGA Monitor

●Universal Serial Bus

●Modem

Parallel Connector

Pin	Signal	Pin	Signal
1	Strobe*	10	Acknowledge*
2	Data Bit 0	11	Busy
3	Data Bit 1	12	Paper Out
4	Data Bit 2	13	Select
5	Data Bit 3	14	Auto Linefeed*
6	Data Bit 4	15	Error*
7	Data Bit 5	16	Initialize Printer*
8	Data Bit 6	17	Select In*
9	Data Bit 7	18-25	Signal Ground
* = Active low
		Serial Connector
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

Connector	Pin	Signal
	1	Data 1
	2	Data 2
	3	Ground
	4	+5 V
	5	Clock 1
	6	Clock 2
	External VGA Monitor
Connector	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	Not connected
	10	Ground
	11	Monitor Detect
	12	DDC2B Data
	13	Horizontal Sync
	14	Vertical Sync
	15	DDC2B Clock
	Universal Serial Bus
Connector	Pin	Signal
	1	+5V
	2	Data -

Data +

3

4

Ground

	Modem
Connector	Pin	Signal
	1	Unused
	2	Unused
	3	Tip
	4	Ring
	5	Unused
	6	Unused