EMachines 13 Información técnica descargar pdf (Pagina 45)

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Información técnica

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Chapter 2 35

Removing BIOS Passwords:

To clear the User or Supervisor passwords through hardware, open the WLAN door and use a metal

instrument to short the J1 jumper.

Cleaning BIOS Passwords

To clean the User or Supervisor passwords using software utilites, perform the following steps:

1. From a DOS prompt, execute clnpwd.exe

2. Press 1 or 2 to clean the desired password shown on the screen.

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 181 182

Service Guide 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
Table of Contents 10
System Specifications 11
Environment 13
System Block Diagram 14
Your Acer Notebook tour 15
Closed Front View 16
Rear View 17
Left View 17
Right View 18
Indicators 20
TouchPad Basics 21
Using the Keyboard 22
Windows Keys 23
Hot Keys 24
Special Key 25
Using the System Utilities 26
System Utilities 33
Information 34
Security 36
Setting a Password 37
Removing a Password 37
Changing a Password 38
Chapter 2 29 39
BIOS Flash Utilities 41
DOS Flash Utility 42
WinFlash Utility 43
Using Boot Sequence Selector 46
Using DMITools 47
Disassembly Requirements 49
Chapter 3 49
Pre-disassembly Instructions 50
Disassembly Process 50
Removing the Battery Pack 52
Removing the SD Dummy Card 53
Removing the Lower Covers 54
Removing the DIMM Modules 57
Removing the WLAN Module 58
50 Chapter 3 60
Chapter 3 51 61
Step Size Quantity Screw Type 61
HDD Carrier M3*3 4 61
Main Unit Disassembly Process 62
Removing the Switch Cover 63
Removing the Keyboard 64
Removing the LCD Module 65
56 Chapter 3 66
Removing the Upper Cover 69
60 Chapter 3 70
Removing the Power Board 73
64 Chapter 3 74
Removing the TouchPad Bracket 78
Chapter 3 69 79
TouchPad Bracket M2*3 2 79
Removing the Mainboard 80
Removing the RTC Battery 81
Removing the Thermal Module 82
Chapter 3 73 83
Removing the CPU Fan 84
Chapter 3 75 85
Removing the CPU 86
Removing the LCD Bezel 88
Removing the Camera Module 89
Removing the LCD Panel 90
Chapter 3 81 91
Chapter 3 83 93
Removing the Antennas 94
Chapter 3 85 95
86 Chapter 3 96
Replacing the Antennas 97
Chapter 3 89 99
Replacing the LCD Panel 100
Replacing the Camera Module 102
Replacing the LCD Bezel 103
94 Chapter 3 104
Replacing the CPU 105
Replacing the CPU Fan 106
Replacing the Thermal Module 106
Replacing the Mainboard 107
Chapter 3 99 109
Replacing the Power Board 112
Replacing the Upper Cover 112
Chapter 3 103 113
104 Chapter 3 114
Chapter 3 105 115
Replacing the LCD Module 116
Rear Securing 117
Chapter 3 109 119
110 Chapter 3 120
Replacing the Keyboard 121
Replacing the Switch Cover 122
Chapter 3 113 123
Replacing the WLAN Module 124
Replacing the DIMM Modules 124
Replacing the ODD Module 125
Replacing the Lower Covers 125
Replacing the SD Dummy Card 126
Replacing the Battery 127
118 Chapter 3 128
Troubleshooting 129
Power On Issue 130
No Display Issue 131
Random Loss of BIOS Settings 132
LCD Failure 133
Built-In Keyboard Failure 133
TouchPad Failure 134
Internal Speaker Failure 134
Sound Problems 135
Microphone Problems 135
HDD Not Operating Correctly 136
ODD Failure 137
Discs Do Not Play 138
Discs Do Not Burn Properly 138
Playback is Choppy 138
Drive Not Detected 139
Drive Read Failure 139
Wireless Function Failure 140
Thermal Unit Failure 140
External Mouse Failure 141
Other Failures 141
Intermittent Problems 142
Undetermined Problems 142
Post Codes 143
Chapter 5 147
Bottom View 148
Power Board 149
Clearing Password Check 150
Clear CMOS Jumper 150
BIOS Recovery by Crisis Disk 151
142 Chapter 5 152
Chapter 6 153
Main Assembly 154
Chapter 6 145 155
Base Assembly 156
Rear Assembly 157
148 Chapter 6 158
Chapter 6 149 159
150 Chapter 6 160
Chapter 6 151 161
152 Chapter 6 162
Chapter 6 153 163
154 Chapter 6 164
Chapter 6 155 165
Appendix A 166
Appendix A 162 172
Test Compatible Components 173
Microsoft 174
7 Environment Test 174
Online Support Information 177
168 Appendix C 178

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