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Acer Aspire E1-531 Acer Aspire E1-531 and E1-571 Notebook Service Guide - Page 181

Internal Keyboard Failure

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Internal Keyboard Failure If the internal keyboard fails, perform the following: Start OK Check KB FPC well insert NG OK Re-assemble the KB FPC to M/B Is KB ok? OK Swap M/B NG Replace KB material Figure 4:4. Internal Keyboard Failure Troubleshooting 4-7

Section	Page
Table of Contents	2
General Information	7
Hardware Specifications and Configurations	9
Features	9
Notebook Tour	13
Top View	13
Front View	14
Left View	15
Right View	16
Base View	17
Touchpad Basics	18
Keyboard Basics	19
System Block Diagram	22
Specifications Table	23
System Utilities	43
BIOS Setup Utility	43
Navigating the Bios Setup Utility	43
BIOS	44
Information	44
Main	46
Security	47
Boot	51
Exit	52
Boot Manager	53
Boot Sequence SOP	54
BIOS Flash Utilities	55
DOS Flash Utility	56
WinFlash Utility	58
Miscellaneous Tools	60
Using DMITools	60
Using the LAN MAC EEPROM Utility	61
HDD/BIOS Password	63
Unlocking the HDD	63
Clearing the Password Check and BIOS Password	65
Crisis Utility SOP	66
Creating a USB Flash Crisis Disk	66
Using the Crisis Utility Disk	67
Service and Maintenance	71
Introduction	71
Recommended Equipment	71
Maintenance Flowchart	72
Getting Started	74
Battery Pack Removal	75
Battery Pack Installation	76
Dummy Card Removal	77
Dummy Card Installation	78
Base Door Removal	79
Base Door Installation	81
ODD Module Removal	83
ODD Module Installation	86
DIMM Module Removal	89
DIMM Module Installation	90
HDD Module Removal	91
HDD Module Installation	92
HDD Carrier Removal	93
HDD Carrier Installation	93
WLAN Module Removal	94
WLAN Module Installation	96
Keyboard Removal	98
Keyboard Installation	100
Upper Case Removal	102
Upper Case Installation	106
RTC Battery Removal	109
RTC Battery Installation	110
Mainboard Removal	111
Mainboard Installation	114
Fan Removal	118
Fan Installation	120
Thermal Module Removal	122
Thermal Module Installation	123
CPU Removal	125
CPU Installation	126
Speaker Removal	127
Speaker Installation	130
USB Module Removal	133
USB Module Installation	135
Power Board Removal	137
Power Board Installation	139
Touchpad FFC Removal	141
Touchpad FFC Installation	142
LCD Module Removal	143
LCD Module Installation	146
DC-In Cable Removal	150
DC-In Cable Installation	151
LCD Bezel Removal	152
LCD Bezel Installation	154
CCD Module Removal	157
CCD Module Installation	158
LCD Panel Removal	159
LCD Panel Installation	163
LCD Panel Bracket Removal	167
LCD Panel Bracket Installation	168
WLAN Antenna Removal	169
WLAN Antenna Installation	171
Microphone Module Removal	173
Microphone Module Installation	174
Troubleshooting	176
General Information	176
Power On Issues	177
No Display Issues	178
LCD Picture Failure	180
Internal Keyboard Failure	181
Touchpad Failure	182
Internal Speaker Failure	183
Internal Microphone Failure	185
USB Failure	186
Wireless Function Failure	187
Bluetooth Function Failure	188
4-in-1 Card Function Failure	189
Unit Thermal Failure	190
Cosmetic Failure	191
Other Functions Failure	192
BIOS Problems	192
Intermittent Problems	193
Undetermined Problems	193
Jumper and Connector Locations	195
Mainboard Top View	195
Mainboard Bottom View	197
USB Board View	199
Power Board View	200
CMOS Jumper	201
FRU (Field Replaceable Unit) List	203
Exploded Diagram	204
Main Assembly	204
Lower Case Assembly	206
Upper Case Assembly	207
LCD Assembly	208
FRU List	210
Screw List	216
Test Compatible Components	218
Microsoft® Windows® 7 Environment Test	218
Aspire XXXX	218
Online Support Information	226

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