Compaq Evo Notebook N400c Series Spécifications télécharger pdf (Page 82)

Removal and Replacement Procedures

Maintenance and Service Guide 5–23

2. Disconnect the RTC battery cable from the system board

(Figure 5-15).

3. Remove the RTC battery from the slot in the base

enclosure

Figure 5-15. Removing the Real Time Clock Battery

4. Remove the RTC Battery.

Reverse the above procedure to install the RTC Battery.

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 128 129

Maintenance and Service Guide 1
Contents 3
3 Illustrated Parts Catalog 4
6 Specifications 5
A Connector Pin Assignments 5
B Power Cord Set Requirements 5
C Screw Listing 5
1.1 Features 7
1.2 Clearing a Password 9
1.3 Power Management 10
Product Description 11
Table 1-1 12
Table 1-2 14
Table 1-3 16
Keyboard Components 16
Figure 1-5. Top Components 17
Figure 1-6. Bottom Components 19
Table 1-5 20
Bottom Components 20
1.4 Design Overview 21
Troubleshooting 22
Troubleshooting Flowcharts 23
Initial Troubleshooting 24
2.2 No Power, Part 1 25
2.3 No Power, Part 2 26
2.4 No Power, Part 3 27
2.5 No Power, Part 4 28
2.6 No Video, Part 1 29
2.7 No Video, Part 2 30
(if applicable) 31
DVD-ROM Drive 37
2.15 No Audio, Part 1 38
2.16 No Audio, Part 2 39
2.17 Nonfunctioning Device 40
2.18 Nonfunctioning Keyboard 41
Illustrated Parts Catalog 44
Table 3-1 46
Components 49
3.4 Cable Kit Components 50
3.5 Miscellaneous Spare Parts 51
Removal and Replacement 53
Preliminaries 53
4.2 Service Considerations 54
4.3 Preventing Damage to 55
Removable Drives 55
Precautions 56
4.6 Workstation Precautions 57
Procedures 60
5.1 Serial Number 61
Table 5-1 62
Disassembly Sequence Chart 62
Disassembly 63
5.4 Computer Feet 64
5.5 Modem/NIC 65
5.6 LED Cover 68
5.7 Microphone 69
5.8 Keyboard 70
5.9 LED Board 71
5.10 Display 74
5.11 Top Cover 77
5.12 RTC Battery 81
5.13 System Board 83
2. Disconnect the left 84
and right 84
external battery terminal 84
(Figure 5-16) 84
5.14 Charger Board 86
5.15 Modem/NIC Cable 88
5.16 Audio Cable 90
Specifications 92
Table 6-2 94
10.4-inch XGA, TFT Display 94
Table 6-3 95
Hard Drives 95
Table 6-4 97
Battery Packs 97
Table 6-5 98
AC Adapter 98
Table 6-6 98
System DMA 98
Table 6-7 99
System Interrupts 99
Table 6-8 100
System I/O Addresses 100
(Continued) 101
Table 6-9 103
System Memory Map 103
Connector Pin Assignments 104
Microphone 105
Table A-3 105
Universal Serial Bus 105
Table A-2 105
Table A-4 106
RJ-45 Network Interface 106
Table A-5 106
RJ-11 Modem 106
Table A-6 107
External Monitor 107
Power Cord Set Requirements 108
Country-Specific Requirements 109
Screw Listing 111
Table C-1 112
Phillips PO M2 × 10 Screw 112
Table C-2 113
Torx T8 M2.5 × 5 Screw 113
Table C-3 114
Phillips P0 M2 × 4 Screw 114
Table C-4 115
Torx T8 M2 × 4 Screw 115
(Continued) 116
Table C-5 117
Torx T8 M2 × 15 Screw 117
Table C-6 118
Torx T8 M2 × 5 Screw 118
Table C-7 119
Torx T8 M2 × 8 Screw 119
Table C-8 121
5.0 mm × 9.5 Screwlock 121
Table C-9 122
Table C-10 123
Phillips P0 M1.5 × 6 Screw 123

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Compaq Evo Notebook N400c Series Spécifications Page 82

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