HP Compaq dx2700 MT Informações Técnicas descarregar pdf (Página 72)

Service Reference Guide 431672-001 A–1

Connector Pin Assignments

This appendix contains the pin assignments for many computer and workstation connectors.

Some of these connectors may not be used on the product being serviced.

Enhanced Keyboard

Connector and Icon Pin Signal

Data

Unused

Ground

+5 VDC

Clock

Unused

Mouse

Connector and Icon Pin Signal

Data

Unused

Ground

+5 VDC

Clock

Unused

Ethernet RJ-45

Connector and Icon Pin Signal

(+) Transmit Data

(-) Transmit Data

(+) Receive Data

Unused

(-) Receive Data

Unused

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 106 107

Business PCs 1
1st Edition 1
Service Reference Guide 2
Contents 4
Factor (SFF) Chassis 5
A Connector Pin Assignments 6
B Power Cord Set Requirements 6
C POST Error Messages 6
During this process 7
1.3 HP Software 8
2.1 Power-On Self-Test (POST) 9
2.2 Computer Setup Utilities 10
2.2.2 Computer Setup Menu 12
Computer Setup (Continued) 13
2.3.1 Backing up the CMOS 19
2.3.2 Restoring the CMOS 19
Desktop Management 20
3.2.2 Dual-State Power Button 21
3.2.3 Power Management 21
3.3 Security 22
Entering a User Password 23
Clearing Passwords 25
4.2 SATA Hard Drive Cables 27
4.3 SATA SMART Drives 28
4.4 Drive Capacities 28
4.5 SATA BIOS 28
4.5.1 Legacy Mode 29
4.5.2 Native Mode 29
Disassembly Preparation 30
5.2.1 Generating Static 32
5.2.4 Grounding the Work Area 33
5.3 Routine Care 34
5.3.3 Cleaning the Keyboard 35
5.3.4 Cleaning the Monitor 35
5.3.5 Cleaning the Mouse 35
5.4 Service Considerations 36
5.4.3 Cables and Connectors 37
5.4.4 Hard Drives 37
MT chassis and SFF chassis) 39
(SFF chassis) 41
Removing the Front Bezel 42
Minitower Configuration 43
6.4 Front Drive Bezels 44
6.5 Memory 45
Installing a DIMM 47
6.6 Expansion Cards 48
Installing an Expansion Card 51
6.7 Cable Management 53
6.8 Drives 54
6.8.2 Removing a Drive 55
Removing the Hard disk 56
Desktop Drive Positions 56
Installing the Optical Drive 59
6. Remove the screw 1 62
6.10 System Fan 64
6.11 Heatsink - MT chassis 65
6.12 Processor 66
6.13 System Board 68
6.14 Battery 69
6.14.1 Battery Holder 70
6.15 Power Supply 71
Connector Pin Assignments 72
Parallel Interface 73
Microphone 73
Headphone 74
Line-In Audio 74
Line-Out Audio 74
24-Pin Power 75
4-Pin Power (for CPU) 75
Power Cord Set Requirements 76
POST Error Messages 77
Preliminary Checklist 81
Solving General Problems 82
Solving Display Problems 87
Solving Audio Problems 90
Solving Printer Problems 92
Solving Keyboard Problems 93
Solving Network Problems 94
Solving Memory Problems 96
Solving Processor Problems 97
Solving Drive Key Problems 99
Restoring the Software 105
Contacting Customer Support 106

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