Acer 7715Z User Manual download pdf (Page 48)

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38 Chapter 2

Removing BIOS Passwords:

To clear the User or Supervisor passwords, open the RAM door and use a metal instrument to short the J1

jumper.

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 ... 43 44 45 46 47 48 49 50 51 52 53 ... 199 200

Aspire 7715Z/7315 Series 1
Service Guide 1
Revision History 2
Copyright 3
Disclaimer 3
Conventions 4
Table of Contents 10
System Specifications 11
System Block Diagram 13
Your Acer Notebook tour 14
Closed Front View 15
Rear View 16
Left View 16
Right View 17
Indicators 18
TouchPad Basics 19
Using the Keyboard 20
Windows Keys 21
Hot Keys 22
20 Chapter 1 30
System Utilities 31
HM70-MV Intel BIOS 32
Advanced 34
Security 36
Setting a Password 37
Removing a Password 37
Changing a Password 38
BIOS Flash Utilities 43
DOS Flash Utility 44
Chapter 2 35 45
WinFlash Utility 46
Using Boot Sequence Selector 49
Using DMITools 50
42 Chapter 2 52
Disassembly Requirements 53
Chapter 3 53
Pre-disassembly Instructions 54
Disassembly Process 54
Removing the Battery Pack 56
Removing the SD Dummy Card 57
Removing the Lower Covers 58
Removing the DIMM Modules 61
Removing the WLAN Module 62
54 Chapter 3 64
Chapter 3 55 65
Step Size Quantity Screw Type 65
HDD Carrier M3*3 4 65
Main Unit Disassembly Process 66
Removing the Switch Cover 67
Removing the Keyboard 68
Removing the LCD Module 69
60 Chapter 3 70
Removing the Upper Cover 73
64 Chapter 3 74
Removing the Power Board 77
68 Chapter 3 78
Removing the TouchPad Bracket 82
Chapter 3 73 83
TouchPad Bracket M2*3 2 83
Removing the Mainboard 84
Removing the RTC Battery 85
Removing the Thermal Module 86
Chapter 3 77 87
Removing the CPU Fan 88
Chapter 3 79 89
Removing the CPU 90
Removing the LCD Bezel 92
Removing the Camera Module 93
Removing the LCD Panel 94
Chapter 3 85 95
Chapter 3 87 97
Removing the Antennas 98
Chapter 3 89 99
90 Chapter 3 100
Replacing the Antennas 101
Chapter 3 93 103
Replacing the LCD Panel 104
Replacing the Camera Module 106
Replacing the LCD Bezel 107
98 Chapter 3 108
Replacing the CPU 109
Replacing the CPU Fan 110
Replacing the Thermal Module 110
Replacing the Mainboard 111
Chapter 3 103 113
Replacing the Power Board 116
Replacing the Upper Cover 116
Chapter 3 107 117
108 Chapter 3 118
Chapter 3 109 119
Replacing the LCD Module 120
Rear Securing 121
Chapter 3 113 123
114 Chapter 3 124
Replacing the Keyboard 125
Replacing the Switch Cover 126
Chapter 3 117 127
Replacing the WLAN Module 128
Replacing the DIMM Modules 128
Replacing the ODD Module 129
Replacing the Lower Covers 129
Replacing the SD Dummy Card 130
Replacing the Battery 131
122 Chapter 3 132
Troubleshooting 133
Power On Issue 134
No Display Issue 135
Random Loss of BIOS Settings 136
LCD Failure 137
Built-In Keyboard Failure 137
TouchPad Failure 138
Internal Speaker Failure 138
Sound Problems 139
Microphone Problems 139
HDD Not Operating Correctly 140
ODD Failure 141
Discs Do Not Play 142
Discs Do Not Burn Properly 142
Playback is Choppy 142
Drive Not Detected 143
Drive Read Failure 143
Wireless Function Failure 144
Thermal Unit Failure 144
External Mouse Failure 145
Other Failures 145
Intermittent Problems 146
Undetermined Problems 146
Post Codes 147
BDS & Specific action: 148
Chapter 4 139 149
Code Description 149
Chapter 5 155
Bottom View 156
Power Board 157
LS-4852P ODD Board 157
LS-4853P Battery Board 158
LS-4854P Lid Board 158
Clearing Password Check 159
Clear CMOS Jumper 159
BIOS Recovery by Crisis Disk 160
Chapter 6 161
Main Assembly 162
Base Assembly 163
Rear Assembly 164
Aspire 7715Z/7315 FRU List 165
156 Chapter 6 166
Chapter 6 157 167
158 Chapter 6 168
Chapter 6 159 169
160 Chapter 6 170
Chapter 6 161 171
162 Chapter 6 172
Screw List 173
Appendix A 174
Aspire 7315 175
Aspire 7715Z 177
Test Compatible Components 191
Microsoft 192
7 Environment Test 192
Online Support Information 195
186 Appendix C 196

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