Compaq Presario 1900 Presario 1900 Series Maintenance and Service Guide - Page 94

Pin Assignments

Get Compaq Presario 1900 - Notebook PC PDF manuals and user guides View all Compaq Presario 1900 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 94 highlights

Maintenance & Service Guide Presario 1900 Series Models: 1900T, 1905, 1906, 1910, 1915, 1919, 1920, 1922, 1925, 1926, 1927, 1928, 1929, and 1930 Before You Begin Removal Sequence Product Description Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations Index Pin Assignments This appendix provides connector pin assignment tables for Compaq Presario 1900 Series Portable Computers. For more information on connectors, refer to the section on Back Connectors. NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated by an asterisk (*). 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 Parallel 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 Connector Connector 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 Keyboard/Mouse Connector Pin Signal 1 Data 2 Not defined 3 Ground 4 +5 VDC 5 Clock 6 Not defined Connector 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 Connector Universal Serial Bus Connector Pin Signal 1 Ground 2 D+ 3 D- 4 Power Connector Modem Connector Pin Signal 1 Unused 2 Unused 3 Tip 4 Ring 5 Unused 6 Unused This information was not available at time of publication. Port Replicator Connector Pin Signal Pin Signal Pin Signal Pin Signal This information was not available at time of publication. LAN Connector

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
Maintenance & Service Guide
Presario 1900 Series
Models: 1900T, 1905, 1906, 1910, 1915, 1919, 1920,
1922, 1925, 1926, 1927, 1928, 1929, and 1930
Before You Begin
Specifications
Parts Catalog
Removal Sequence
Troubleshooting
Battery Operations
Product Description
Pin Assignments
Index
Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1900
Series Portable Computers. For more information on connectors, refer to the section
on
Back Connectors.
NOTE:
The signals in all tables of this appendix are considered active high unless
otherwise indicated by an asterisk (*).
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
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse Connector
Connector
Pin
Signal
1
2
3
4
5
6
Data
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor Connector
Connector
Pin
Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus Connector
Connector
Pin
Signal
1
Ground
2 D+
3 D-
4 Power
Modem Connector
Connector
Pin
Signal
1
2
3
4
5
6
Unused
Unused
Tip
Ring
Unused
Unused
This information was not available at time of publication.
Port Replicator Connector
Pin Signal
Pin Signal
Pin Signal
Pin Signal
This information was not available at time of publication.
LAN Connector