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Aspire E1-421
Acer Aspire E1-421 User Manual
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Machine Main
tenance Procedures
3-53
Main Unit Reassembly Process
0
Replacing the Support Bracket
0
1.
Place the support brackets (
B) on the base assembly
(Figure
3-60
).
2.
Install and secure four (4) screws (A) to the suppor
t brackets (
Figure
3-60
).
Figure 3-60.
Support Brackets
ID
Size
Quantity
Screw Type
AM
2
.
5
*
4
4
A
A
B
B
138
140
Table of Contents
Jumper and Connector Locations
9
Revision History
2
General Information
4
Table of Contents
9
Online Support Information
10
Features
15
Operating System
15
Platform
15
System Memory
15
Display
15
Audio
15
Graphics
16
Storage
16
Optical Media Drive
16
Webcam
16
Wireless and Networking
17
Privacy Control
17
Dimension and Weight
17
Power Adapter and Battery
17
Input and Control
18
Input and Output (I/O) Ports
18
Software
18
Optional Items
19
Warranty
19
Environment
20
Notebook Tour
21
Opened Front View
21
Touchpad Basics
27
Using the Keyboard
28
Windows Keys
29
Hotkeys
30
System Block Diagram
32
Specification Tables
33
Computer Specifications
33
System Board Major Chips
34
Processor
34
CPU Fan True Value Table
35
System Memory
35
Memory Combinations
35
Video Interface
36
Bios
36
Keyboard
36
Battery
37
AC Adapter
37
Hard Disk Drive (AVL Components)
38
Hard Disk Drive (AVL Components) (Continued)
39
DVD Super-Multi Drive
40
DVD Super-Multi Drive (Continued)
41
Lcd 14.0
42
LCD 14.0" (Continued)
43
LCD 14.0" (Continued)
44
LCD Inverter (Not Available with this Model)
44
Display Supported Resolution (LCD Supported Resolution)
45
Graphics Controller
45
Display Supported Resolution (GPU Supported Resolution)
45
LAN Interface
46
Bluetooth Interface (Not Available in this Model)
46
Bluetooth Module (Not Abailable in this Model)
46
Wireless Module 802.11 B/G/N
46
Mini Card Wireless Networking Card
47
Card (Not Available in this Model)
47
Audio Interface
47
Audio Codec and Amplifier
48
1.3M HD Camera
49
0.3M Camera
49
VRAM (Not Available in this Model)
49
USB Port
50
HDMI Port
50
System Power Management
50
Card Reader
51
System LED Indicator
51
System DMA Specification
52
System Interrupt Specification
53
System I/O Address Map
57
System Utilities
60
BIOS Setup Utility
61
Navigating the BIOS Utility
61
Bios
62
Information
62
Main
64
Security
66
Setting a Password
67
Removing a Password
68
Changing a Password
68
Boot
70
Exit
71
BIOS Flash Utilities
72
DOS Flash Utility
73
Winflash Utility
75
Clearing BIOS Passwords
76
Removing Insyde BIOS Passwords
77
Removing Insyde HDD Password
79
Miscellaneous Tools
80
Using Dmitools
80
Using Uuidtools
84
Using the LAN MAC EEPROM Utility
85
Crisis Disk Recovery
86
Table of Contents
88
Default Chapter
89
Replacing the WLAN (Wireless Local Area Network)
89
General Information
91
Introduction
91
Recommended Equipment
91
Pre-Disassembly Instructions
92
Disassembly Process
93
CHAPTER 3 Machine Maintenance Procedures
94
External Module Disassembly Process
94
External Modules Disassembly Flowchart
94
Dummy Card Removal
95
Battery Pack Removal
96
ODD (Optical Disk Drive) Module Removal
97
Keyboard Removal
99
Base Door Removal
100
WLAN (Wireless Local Area Network) Module Removal
101
DIMM (Dual In-Line Memory Module) Module Removal
103
HDD (Hard Disk Drive) Module Removal
104
Main Unit Disassembly Process
106
Main Unit Disassembly Flowchart
106
Upper Case Removal
107
IO Board Removal
109
Mainboard Removal
111
Speaker Module Removal
114
RTC Battery Removal
116
Thermal Module Removal
118
LCD (Liquid Crystal Display) Module Removal
119
DC-In Jack Removal
121
Support Bracket Removal
122
LCD Module Disassembly Process
123
LCD Module Disassembly Flowchart
123
LCD Bezel Removal
124
Camera Module Removal
127
LCD Panel Removal
128
LCD Bracket Removal
129
LVDS and Camera Cable Removal
130
LCD Reassembly Process
132
Replacing the LVDS and Camera Cable
132
Replacing the LCD Bracket
134
Replacing the LCD Panel
135
Replacing the Camera Module
136
Replacing the LCD Bezel
137
Main Unit Reassembly Process
139
Replacing the Support Bracket
139
Replacing the DC-In Jack
140
Replacing the LCD (Liquid Crystal Display) Module
141
Replacing the Thermal Module
143
Replacing the RTC Battery
145
Replacing the Speaker Module
146
Replacing the Mainboard
147
Replacing the IO Board
149
Replacing the Upper Case
151
External Module Reassembly Process
153
Replacing the HDD (Hard Disk Drive) Module
153
Replacing the DIMM (Dual In-Line Memory Module) Module3-69
155
Replacing the WLAN (Wireless Local Area Network) Module
156
Replacing the Base Door
157
Replacing the Keyboard
158
Replacing the ODD (Optical Disk Drive) Module
160
Replacing the Battery Pack
162
Replacing the Dummy Card
163
Troubleshooting
166
General Information
167
Power on Issues
168
No Display Issues
169
Abnormal Video
170
LCD Picture Failure
171
Internal Keyboard Failure
172
Touchpad Failure
173
Internal Speaker Failure
174
Internal Microphone Failure
176
USB Failure
177
Other Functions Failure
178
Introduction
167
Intermittent Problems
179
Undetermined Problems
179
Post Codes
180
Jumper and Connector Locations
190
Default Chapter
191
Mainboard Jumper and Connector Locations
191
Clearing Password Check and BIOS Recovery
193
Clearing Password Check
193
BIOS Recovery by Crisis Disk
195
CHAPTER 5 Jumper and Connector Locations
200
CHAPTER 6 FRU (Field Replaceable Unit) List
200
Exploded Diagrams
200
FRU List
204
Screw List
213
Chapter 7
217
Model Definition and Configuration
217
Microsoft® Windows® 7 Environment Test
242
Chapter 8
243
Test Compatible Components
243
Microsoft Windows
244
Environment Test
244
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Acer Aspire E1-421 Specifications
General
Brand
Acer
Model
Aspire E1-421
Category
Laptop
Language
English
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