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Acer Aspire 5750Z Acer Aspire 5350, 5750, 5750G, 5750Z Notebook Service Guide - Page 142

Keyboard Failure,

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Keyboard Failure 0 If the Keyboard fails, perform the following: Figure 4-4. Keyboard Failure 4-8 Troubleshooting

Section	Page
Aspire 5750/5750G Service Guide	1
Table of Contents	5
Chapter 1: Hardware Specifications	11
Table of Contents	12
Features	15
Operating System	15
Platform	15
System Memory	15
Display	15
Privacy Control	16
Storage Subsystem	16
Graphics	16
Audio Subsystem	17
Optical Media Drive	17
Communication	17
Dimension and Weight	18
Power Adapter and Battery	18
I/O Ports	18
Special Keys and Controls	19
Environment	19
Warranty	19
Optional Items	19
Software	20
Notebook Tour	21
Top View	21
Closed Front View	23
Left View	24
Right View	25
Base View	26
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
Processor Specifications	34
CPU Fan True Value Table	35
CPU Fan True Value Table	35
System Memory	35
Memory Combinations	36
Video Interface	36
BIOS	37
LAN Interface	37
Keyboard	37
Hard Disk Drive (AVL components)	38
Super-Multi Drive	40
LED 15.6”	42
LCD Inverter (not available with this model)	42
Display Supported Resolution (LCD Supported Resolution)	43
Graphics Controller	43
Display Supported Resolution (GPU Supported Resolution)	43
Bluetooth Interface	43
Bluetooth Module	44
Camera	44
Mini Card	44
3G Card	44
Audio Codec and Amplifier	45
Audio Interface	45
Wireless Module 802.11b/g/n	46
Battery	46
VRAM	46
USB Port	47
HDMI Port	47
AC Adapter	47
System Power Management	48
Card Reader	48
System LED Indicator	49
System DMA Specification	49
System Interrupt Specification	50
System IO Address Map	51
System I/O Address Specifications	52
Chapter 2: System Utilities	53
Table of Contents	54
BIOS Setup Utility	55
Navigating the BIOS Utility	55
BIOS	56
Information	56
Main	58
Security	60
Boot	64
Exit	65
BIOS Flash Utilities	66
DOS Flash Utility	67
WinFlash Utility	69
Remove HDD/BIOS Password Utilities	70
Removing BIOS Passwords	72
Miscellaneous Tools	74
Chapter 3: Machine Maintenance Procedures	77
Table of Contents	78
Introduction	81
General Information	81
Recommended Equipment	81
Maintenance Flowchart	82
Getting Started	84
Battery Pack Removal	85
Battery Pack Installation	85
Dummy Card Removal	86
Dummy Card Installation	86
3G Card Removal	87
3G Card Installation	87
3G Module Removal	88
3G Module Installation	89
Base Door Removal	90
Base Door Installation	90
HDD (Hard Disk Drive) Module Removal	92
HDD Module Installation	93
HDD Carrier Removal	94
HDD Carrier Installation	94
ODD Module Removal	95
ODD Module Installation	96
WLAN (Wireless Local Area Network) Module Removal	97
WLAN Module Installation	97
DIMM (Dual In-line Memory Module) Module Removal	98
DIMM Module Installation	98
Keyboard Removal	99
Keyboard Installation	100
Upper Cover Removal	101
Upper Cover Installation	103
Touchpad Board FFC Removal	104
Touchpad Board FFC Installation	105
Power Board Removal	106
Power Board Installation	106
USB Module Removal	107
USB Module Installation	108
Bluetooth Module Removal	109
Bluetooth Module Installation	109
RTC Battery Removal	110
RTC Battery Installation	110
Speaker Module Removal	111
Speaker Module Installation	111
Mainboard Removal	112
Mainboard Installation	114
Thermal Module Removal	115
Thermal Module Installation	116
CPU Removal	118
CPU Installation	118
3G Board Removal	120
3G Board Installation	121
LCD (Liquid Crystal Display) Module Removal	122
LCD Module Installation	123
DC-IN Cable Removal	125
DC-IN Cable Installation	125
LCD Bezel Removal	126
LCD Bezel Installation	127
CCD (Charge-Coupled Device) Module Removal	128
CCD Module Installation	128
LCD Panel Removal	129
LCD Panel Installation	129
LCD Brackets Removal	130
LCD Brackets Installation	130
WLAN and 3G Antenna Removal	131
WLAN and 3G Antenna Installation	132
Microphone Module Removal	133
Microphone Module Installation	133
Chapter 4: Troubleshooting	135
Table of Contents	136
Introduction	137
General Information	137
Power On Issues	138
No Display Issues	139
LCD Failure	141
Keyboard Failure	142
Touchpad Failure	143
Internal Speaker Failure	144
Microphone Failure	146
USB Failure	147
Wireless Function Failure	148
Bluetooth Failure	149
Card Reader Failure	150
Thermal Unit Failure	151
Other Functions Failure	152
ODD Failure	153
Intermittent Problems	157
Undetermined Problems	157
Post Codes	159
Chapter 5: Jumper and Connector Locations	167
Table of Contents	168
Mainboard	169
USB Board	171
Power Board	172
Card Reader	173
Clearing Password Check and BIOS Recovery	174
Clearing Password Check	174
BIOS Recovery by Crisis Disk	176
Chapter 6: FRU List	179
Table of Contents	180
Exploded Diagrams	182
Main Assembly	182
LCD Assembly	184
Upper Cover	186
Lower Cover	187
FRU List	188
Screw List	204
Chapter 7: Model Definition and Configuration	205
Table of Contents	206
Aspire 5750	207
Aspire 5750G	221
Chapter 8: Test Compatible Components	277
Table of Contents	278
Microsoft® Windows® 7 Environment Test	280
Aspire 5750/5750G	280
Chapter 9: Online Support Information	289
Table of Contents	290
Introduction	291

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