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Acer LX.EDV0Z.001 Service Guide - Page 107

Built-In Keyboard Failure, If the built-in, fails

UPC - 884483697694

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Built-In Keyboard Failure If the built-in Keyboard fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4 97

Section	Page
System Specifications	11
Features	11
System Block Diagram	14
Acer Notebook tour	15
Front View	15
Hot Keys	17
Closed Front View	17
Rear View	18
Left View	18
Right View	19
Bottom View	19
Touchpad Basics	21
Using the Keyboard	22
Lock Keys and embedded numeric keypad	22
Windows Keys	23
Special Key	24
Acer GridVista (dual-display compatible)	25
Hardware Specifications and Configurations	26
System Utilities	33
BIOS Setup Utility	33
Navigating the BIOS Utility	33
Information	34
Main	35
Security	36
Boot	39
Exit	40
BIOS Flash Utility	41
Using the Flash16 Utility to Update the BIOS	41
WinFlash Utility	42
Remove HDD/BIOS Password Utilities	44
Miscellaneous Utilities	47
Machine Disassembly and Replacement	49
Disassembly Requirements	49
General Information	50
Pre-disassembly Instructions	50
Disassembly Process	50
External Module Disassembly Process	51
External Modules Disassembly Flowchart	51
Removing the Battery Pack	52
Removing the SD Dummy Card	53
Removing the Lower Door	54
Removing the RTC Battery	55
Removing the Optical Drive Module	56
Removing the Hard Disk Drive Module	58
Removing the DIMM Modules	60
Removing the WLAN Module	61
Main Unit Disassembly Process	63
Main Unit Disassembly Flowchart	63
Removing the Switch Cover	64
Removing the Keyboard	66
Removing the LCD Module	67
Removing the Upper Cover	70
Removing the TouchPad Bracket	73
Removing the Speaker Module	75
Removing the Microphone	78
Removing the Bluetooth Board	79
Removing the USB Board	81
Removing the Mainboard	83
Removing the Hinge Supports	85
Removing the Thermal Module	86
Removing the CPU	87
LCD Module Disassembly Process	88
LCD Module Disassembly Flowchart	88
Removing the LCD Bezel	89
Removing the LCD Panel	91
Removing the FPC Cable and LCD Brackets	93
Removing the Camera Board	95
LCD Module Reassembly Procedure	96
Replacing the Camera Board	96
Replacing the LCD Brackets and FPC Cable	97
Replacing the LCD Panel	99
Replacing the LCD Bezel	100
Troubleshooting	101
Common Problems	101
Power On Issue	102
No Display Issue	103
Random Loss of BIOS Settings	105
LCD Failure	106
Built-In Keyboard Failure	107
TouchPad Failure	108
Internal Speaker Failure	109
Internal Microphone Failure	111
HDD Not Operating Correctly	112
USB Failure (Rightside)	113
External Mouse Failure	114
Other Failures	115
Intermittent Problems	115
Undetermined Problems	115
POST Code Reference Tables	116
Chipset POST Codes	116
Jumper and Connector Locations	121
Top View	121
Bottom View	122
Clearing Password Check and BIOS Recovery	123
Clearing Password Check	123
BIOS Recovery by Crisis Disk	124
FRU (Field Replaceable Unit) List	125
Extensa 5635/5635Z/5235 Exploded Diagrams	126
Main Assembly	126
LCD Assembly	127
Extensa 5635/5635Z/5235 FRU List	128
Screw List	136
Model Definition and Configuration	138
Extensa 5635/5635Z/5235 Series	138
Test Compatible Components	189
Windows XP Environment Test	190
Online Support Information	195

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