Acer AcerPower 9658 Technical Information PDF herunterladen (Seite 42)

32 Chapter 2

Removing BIOS Passwords:

To clear the User or Supervisor passwords, open the RAM door and use a metal instrument to short the U72

jumper as shown below.

Cleaning BIOS Passwords

To clean the User or Supervisor passwords, 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.

The onscreen message determines whether the function is successful or not.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 181 182

Packard Bell dot s Series 1
Service Guide 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
Table of Contents 10
System Specifications 11
I/O Interface 12
Dimensions and Weight 12
Communication 12
Privacy Control 12
Power subsystem 12
Special keys and controls 13
Environment 13
System Block Diagram 14
Front View 15
Left View 15
Right View 15
Bottom and Rear View 16
Keyboard Area and LCD Panel 17
• Not lit — 3G off / WiFi off 18
Touchpad Basics 19
Using the Keyboard 20
Windows Keys 21
System Keys 22
Hot Keys 23
Special Key 24
60 Hz16.7 26
18 Chapter 1 28
System Utilities 29
Information 30
Security 32
Setting a Password 33
Removing a Password 33
Changing a Password 34
BIOS Flash Utility 37
DOS Flash Utility 38
Chapter 2 29 39
WinFlash Utility 40
Miscellaneous Utilities 43
Using the LAN MAC Utility 44
Chapter 2 35 45
36 Chapter 2 46
Disassembly Requirements 47
Chapter 3 47
General Information 48
Removing the Battery Pack 50
Removing the SD Dummy Card 51
Removing the DIMM Module 52
Chapter 3 43 53
4. Remove the DIMM module 53
Removing the HDD Module 54
46 Chapter 3 56
Removing the WLAN Module 57
Removing the 3G Module 59
Main Unit Disassembly Process 61
Removing the Keyboard 62
Chapter 3 53 63
4. Turn the keyboard over 63
5. Unlock the FPC 63
Removing the Upper Cover 64
Chapter 3 57 67
11. Remove the upper cover 67
Removing the Button Board 68
Chapter 3 59 69
Button Board M2*3 2 69
Removing the Power Board 70
Removing the LED Board 71
Removing the Function Board 72
Chapter 3 63 73
Removing the Bluetooth Module 74
Removing the Bridge Board 75
Removing the I/O Board 76
Chapter 3 67 77
Removing the Mainboard 78
Removing the Thermal Module 79
70 Chapter 3 80
Thermal Module M2*3 3 80
Removing the LCD Module 81
Removing the Speaker Module 83
74 Chapter 3 84
Removing the LCD Bezel 86
Chapter 3 77 87
Removing the Camera Module 88
Removing the LCD Panel 89
Chapter 3 81 91
82 Chapter 3 92
Removing the 3G Antennas 93
84 Chapter 3 94
Removing the WLAN Antennas 95
86 Chapter 3 96
Replacing the WLAN Antennas 97
Replacing the 3G Antennas 98
Chapter 3 89 99
Replacing the Microphone 100
Chapter 3 91 101
4. Replace the foil tabs 101
Replacing the LCD Cable 102
Replacing the LCD Panel 103
Replacing the Camera Module 105
96 Chapter 3 106
2. Connect the webcam cable 106
Replacing the LCD Bezel 107
98 Chapter 3 108
Step Size Quantity Screw Type 108
LCD Bezel M2*4 Ni 2 108
Replacing the Speakers 109
Replacing the LCD Module 110
Replacing the Thermal Module 112
• ShinEtsu 7762 113
104 Chapter 3 114
Replacing the Mainboard 115
106 Chapter 3 116
4. Connect the LCD cable 116
Replacing the I/O Board 117
Replacing the Bridge Board 118
Chapter 3 109 119
Replacing the Function Board 120
Replacing the LED Board 121
Replacing the Power Board 123
Replacing the Button Board 124
Chapter 3 115 125
4. Connect the touchpad FFC 125
5. Lock the touchpad FFC 125
6. Replace the adhesive tape 125
Replacing the Upper Cover 126
Chapter 3 117 127
120 Chapter 3 130
Replacing the Keyboard 131
Replacing the 3G Module 132
Replacing the WLAN Module 133
Replacing the Hard Disk Drive 134
Chapter 3 125 135
Replacing the DIMM Module 136
Replacing the Lower Covers 136
Replacing the Battery 137
Replacing the SD Dummy Card 138
Troubleshooting 139
Power On Issue 140
No Display Issue 141
Random Loss of BIOS Settings 142
LCD Failure 143
Built-In Keyboard Failure 143
TouchPad Failure 144
Internal Speaker Failure 144
Internal Microphone Failure 146
HDD Not Operating Correctly 147
USB Failure 148
Wireless Function Failure 148
Thermal Unit Failure 149
External Mouse Failure 149
Other Failures 150
Intermittent Problems 151
Undetermined Problems 151
Post Codes 152
148 Chapter 4 158
Chapter 5 159
Bottom View 160
Clearing Password Check 161
BIOS Recovery by Crisis Disk 162
Exploded Diagrams 163
Chapter 6 163
FRU List 164
Chapter 6 155 165
156 Chapter 6 166
Chapter 6 157 167
158 Chapter 6 168
Chapter 6 159 169
160 Chapter 6 170
Screw List 171
Appendix A 172
Test Compatible Components 173
166 Appendix B 176
Online Support Information 177
168 Appendix C 178

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