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Compaq Presario 1000 HP Compaq Business Notebook nx7000/Compaq Presario Widesc - Page 124

System Board

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Removal and Replacement Procedures 5.20 System Board Spare Part Number Information System board (includes thermal pads) PC Card assembly (removal not documented) 336964-001 337014-001 ✎ When replacing the system board, ensure that the following components are removed from the defective system board and installed on the replacement system board: ■ Memory expansion boards (Section 5.5) ■ Mini PCI communications board (Section 5.6) ■ RTC battery (Section 5.7) ■ Processor (Section 5.14) ■ VGA board and shield (Section 5.18) ■ Modem and modem cable (Section 5.19) 1. Prepare the notebook for disassembly (Section 5.3) and remove the following components: ❏ Optical drive (Section 5.8) ❏ Keyboard (Section 5.9) ❏ Switch cover (Section 5.10) ❏ Speaker cover (Section 5.11) ❏ Display assembly (Section 5.12) ❏ Top cover (Section 5.16) Maintenance and Service Guide 5-41

Section	Page
Contents	3
Product Description	6
1.1 Models	7
1.2 Features	17
1.3 Clearing a Password	19
1.4 Power Management	20
1.5 External Components	21
1.6 Design Overview	31
Troubleshooting	32
2.1 Computer Setup and Diagnostics Utilities	32
Using Computer Setup	33
Selecting from the File Menu	34
Selecting from the Security Menu	35
Selecting from the Advanced Menu	36
2.2 Using Diagnostics for Windows	38
Obtaining, Saving, or Printing Configuration Information	38
Obtaining, Saving, or Printing Diagnostic Test Information	39
2.3 Troubleshooting Flowcharts	41
Flowchart 2.1-Initial Troubleshooting	42
Flowchart 2.2-No Power, Part 1	43
Flowchart 2.3-No Power, Part 2	44
Flowchart 2.4-No Power, Part 3	45
Flowchart 2.5-No Power, Part 4	46
Flowchart 2.6-No Video, Part 1	47
Flowchart 2.7-No Video, Part 2	48
Flowchart 2.8-Nonfunctioning Docking Station (if applicable)	49
Flowchart 2.9-No Operating System (OS) Loading	50
Flowchart 2.10-No OS Loading, Hard Drive, Part 1	51
Flowchart 2.11-No OS Loading, Hard Drive, Part 2	52
Flowchart 2.12-No OS Loading, Hard Drive, Part 3	53
Flowchart 2.13-No OS Loading, Diskette Drive	54
Flowchart 2.14-No OS Loading, CD- or DVD-ROM Drive	55
Flowchart 2.15-No Audio, Part 1	56
Flowchart 2.16-No Audio, Part 2	57
Flowchart 2.17-Nonfunctioning Device	58
Flowchart 2.18-Nonfunctioning Keyboard	59
Flowchart 2.19-Nonfunctioning Pointing Device	60
Flowchart 2.20-No Network/Modem Connection	61
Illustrated Parts Catalog	62
3.1 Serial Number Location	62
3.2 Notebook Major Components	63
3.3 Miscellaneous Plastics Kit Components	71
3.4 Miscellaneous Cable Kit Components	73
3.5 Miscellaneous Doors/Covers Kit Components	74
3.6 Mass Storage Devices	75
3.7 Miscellaneous	76
Removal and Replacement Preliminaries	77
4.1 Tools Required	77
4.2 Service Considerations	78
Plastic Parts	78
Cables and Connectors	78
4.3 Preventing Damage to Removable Drives	79
4.4 Preventing Electrostatic Damage	80
4.5 Packaging and Transporting Precautions	80
4.6 Workstation Precautions	81
4.7 Grounding Equipment and Methods	82
Removal and Replacement Procedures	84
5.1 Serial Number	85
5.2 Disassembly Sequence Chart	86
5.3 Preparing the Notebook for Disassembly	87
5.4 Notebook Feet	91
5.5 Memory Expansion Board	91
5.6 Mini PCI Communications Board	93
5.7 RTC Battery	96
5.8 Optical Drive	97
5.9 Keyboard	98
5.10 Switch Cover	101
5.11 Speaker Cover	102
5.12 Fan	104
5.13 Heat Sink	105
5.14 Processor	107
5.15 Display Assembly	109
5.16 Top Cover	112
5.17 SD Card Slot Board and Cable	118
5.18 VGA Board and Shield	120
5.19 Modem and Cable	122
5.20 System Board	124
Specifications	127
Connector Pin Assignments	144
Power Cord Set Requirements	149
3-Conductor Power Cord Set	149
General Requirements	149
Country-Specific Requirements	150
Screw Listing	152