HP 1805 manual Connector Pin Assignments

Page 9

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Home Page Notice Preface Product Description Troubleshooting Illustrated Parts Catalog Removal & Replacement Procedures Specifications Pin Assignments Battery Pack Operations

Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1800 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

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

1Carrier Detect

2Receive Data

3Transmit Data

4Data Terminal Ready

5Signal Ground

6Data Set Ready

7Ready to Send

8Clear to Send

9Ring Indicator

Keyboard/Mouse

Connector

Pin

Signal

1Data

2Not defined

3Ground

4+5 VDC

5Clock

6Not defined

External VGA Monitor

Connector

Pin

Signal

1Red Analog

2Green Analog

3Blue Analog

4Not connected

5Ground

6Ground Analog

7Ground Analog

8Ground Analog

9Not connected

10Ground

11Monitor Detect

12DDC2B Data

13Horizontal Sync

14Vertical Sync

15DDC2B Clock

Universal Serial Bus

Connector

Pin

Signal

1 Ground

2D+

3D-

4Power

Port Replicator

Pin

Signal

Pin

Signal

Pin

Signal

Pin

Signal

1

N.C.

21

Printer Data 0

41

N.C.

61

CTS

2

N.C.

22

Printer Data 1

42

N.C.

62

DCD

3

Kb Clk 1

23

Printer Data 2

43

Switch A

63

DSR

4

Joystick Data A

24

Printer Data 3

44

Switch B

64

TXD

5

Kb Data 1

25

Printer Data 4

45

Switch C

65

RTS

6

Joystick Data B

26

Printer Data 5

46

Switch D

66

N.C.

7

Kb Clk 2

27

Printer Data 6

47

N.C.

67

Detect

8

Joystick Data C

28

Printer Data 7

48

MIDI In

68

N.C.

9

Kb Data 2

29

USB 0 -

49

MIDI Out

69

V. Sync

10

Joystick Data D

30

USB 0 +

50

+5V

70

Ground

11

Lp Select In

31

USB 1 -

51

+5V

71

H. Sync

12

Lp Paper End

32

USB 1+

52

N.C.

72

Ground

13

Lp Initialize

33

Adapter In

53

N.C.

73

Blue

14

Lp Busy

34

Adapter In

54

N.C.

74

Ground

15

Lp Error

35

Adapter In

55

N.C.

75

Green

16

Lp Ack

36

Adapter In

56

Dock ID -

76

Ground

17

Lp Auto Feed

37

Adapter In

57

RXD

77

Red

18

Lp Strobe

38

Adapter In

58

Lp Select

78

Ground

19

DDC2BC

39

N.C.

59

RI

79

N.C.

20

DDC2BD

40

N.C.

60

DTR

80

N.C.

Modem

Connector

Pin

Signal

1Unused

2Unused

3Tip

4Ring

5Unused

6Unused

Page 8 Page 10
Image 9
Page 8 Page 10
Contents Maintenance & Service Guide Maintenance & Service Guide Preface SymbolsPort Replicator Product DescriptionFollow the Preliminary Steps Run the Power-OnSelf-Test Post TroubleshootingIllustrated Parts Catalog Serial Number Location Removal and Replacement ProceduresSpecifications Connector Pin Assignments Battery Pack Operating Time Models and Features Compaq Presario 1800 Series Portable Computer ModelsModel Front of Unit Controls and LightsPort Replicator Left Side ComponentsRight Side Components Bottom of Unit Rear Connectors Port Replicator Power Management for Windows Run Computer Checkup Preliminary StepsRunning Post Power-On Self Test PostClearing the Power-on Password Compaq Diagnostics Computer Checkup TestView System Information Inspect Shipping Preparation Contacting Compaq SupportProcedures Diagnostic Error CodesBefore Replacing Parts Troubleshooting Without DiagnosticsSolving Minor Problems Solving Power Problems Solving PC Card ProblemsSolving Printer Problems Solving Touch Pad/Pointing Device ProblemsUnited States 330981-001 System UnitModem, 56.0 Kbps Data/Fax w/o BoardsDescription Mass Storage Devices Miscellaneous Cables Kit Spare Part Number Miscellaneous Cables KitModem Cables Spare Part Number DescriptionMiscellaneous Hardware and Plastics Kit Spare Part Number Miscellaneous Hardware and Plastics KitMiscellaneous Parts Documentation and Software Description Spare Part Number Quick Restore CDQuick Reference Guide QuickFind Part Number Suffix MonthGenerating Static Electrostatic DischargeService Considerations Cables Cables and ConnectorsSelect the desired illustration Plastic PartsZIF Connectors Maintenance & Service Guide Ribbon cable position for the CD drive Ribbon cable position for the diskette drive Back to Cables and Connectors Preparing the Computer for Disassembly Preparing the Computer for DisassemblyRemoving the Keyboard Prepare the computer for disassemblyRemoving the Heatspreader Removing the Modem Return to Removal Replacement Procedures Removing the Processor Replace the processor bracket Removing the Status Panel Audio Board Removing the Interface Board with HeaderNext Step When replacing interface board, ensure both Interface Board Components Removing the 3.2-GB, 4.0-GB, or 6.4-GB Hard Drive Maintenance & Service Guide Bracket, reverse the previous procedures Removing the Battery Charger Board Removing the CD or DVD Drive Disconnect the CD or DVD drive cable from the system board Removing the Display Panel Assembly Removing the Upper CPU Cover Removing the Speaker Assembly Removing the Diskette Drive Maintenance & Service Guide Return to Removal Replacement Procedures Removing the Fan Assembly Removing the Audio Board To replace the audio board, reverse the previous procedures Removing the System Board Remove five standoffs from the system board Remove three screws from the system board Return to Removal & Replacement Procedures Removing the Memory Module Return to Removal Replacement Procedures
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