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Acer Aspire 7750Z Acer Aspire 7750, 7750G, 7750Z Notebook Service Guide - Page 136

WLAN Failure,

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WLAN Failure 0 If the WLAN fails, perform the following. 6WDUW L0D[ ˶˴̅˷ ˦̊˼̇˶˻ ˢ˞ ˡ˚ ˢ˞ ˡ˚ ˢ˞ ˡ˚ Figure 4-9. WLAN Failure 4-14 Troubleshooting

Section	Page
Aspire 7750/7750G	1
Table of Contents	5
Chapter 1: Hardware Specification	11
Table of Contents	12
Features	15
Operating System	15
Platform	15
System Memory	15
Display	16
Graphics	16
Storage Subsystem	17
Audio Subsystem	17
Optical Media Drive	17
Communication	18
Privacy Control	18
Dimensions and Weight	18
Power Adapter and Battery	19
Special Keys and Controls	20
I/O Ports	20
Optional Items	20
Software	21
Warranty	21
Notebook Tour	22
Top View	22
Closed Front View	23
Closed Rear View	24
Left View	24
Right View	25
Base View	26
Indicators	27
Touchpad Basics	27
Using the Keyboard	28
Windows Keys	29
Hotkeys	30
Special Keys	31
The Euro symbol	31
The US dollar sign	31
System Block Diagram	32
Specification Tables	33
Computer specifications	33
System Board Major Chips	34
Processor	34
Processor Specifications	35
CPU Fan True Value Table (Tj=105)	35
CPU Fan True Value Table (Tj=100)	35
System Memory	36
Memory Combinations	36
Memory Combinations (Aspire 7750G with quad core processor)(	37
Video Interface	38
BIOS	38
LAN Interface	39
Keyboard	39
Hard Disk Drive (AVL components)	40
Super-Multi Drive	42
BD Drive	43
LED 17.3”	44
Display Supported Resolution (LCD Supported Resolution)	44
Graphics Controller	45
Display Supported Resolution (GPU Supported Resolution)	45
Bluetooth Interface	45
Bluetooth Module	46
Camera	46
Mini Card	46
3G Card	46
Audio Codec and Amplifier	47
Audio Interface	48
Wireless Module 802.11b/g/n	48
Battery	49
VRAM	49
USB2.0 Port	49
USB3.0 Port	50
HDMI Port	50
AC Adapter	50
System Power Management	50
Card Reader	51
System LED Indicator	51
System DMA Specification	51
System Interrupt Specification	52
System I/O Address Map	53
Chapter 2: System Utilities	57
Table of Contents	58
BIOS Setup Utility	59
Navigating the BIOS Utility	59
BIOS	60
Information	60
Main	61
Security	63
Boot	67
Exit	68
BIOS Flash Utilities	69
DOS Flash Utility	70
WinFlash Utility	72
Remove HDD/BIOS Password Utilities	74
Removing BIOS Passwords	75
Cleaning BIOS Passwords	75
Miscellaneous Tools	76
Chapter 3: Machine Maintenance	79
Table of Contents	80
Introduction	83
General Information	83
Recommended Equipment	83
Screw Table	84
Maintenance Flowchart	85
Getting Started	86
Battery Pack removal	87
Battery Pack Installation	87
Dummy Card Removal	88
Dummy Card Installation	88
Base Door Removal	89
Base Door Installation	89
HDD Module Removal	90
HDD Module Installation	91
DIMM Module Removal	92
DIMM Module Installation	92
WLAN Module Removal	93
WLAN Module Installation	93
RTC Battery Removal	94
RTC Battery Installation	94
ODD Module Removal	95
ODD Module Installation	96
Keyboard Removal	97
Keyboard Installation	98
Upper Cover Removal	99
Upper Cover Installation	100
Power Board Removal	101
Power Board Installation	101
Bluetooth Module Removal	102
Bluetooth Module Installation	102
USB Module Removal	103
USB Module Installation	103
LAN Module Removal	104
LAN Module Installation	104
Speakers Removal	105
Speakers Installation	105
Mainboard Removal	106
Mainboard Installation	107
FAN Module Removal	108
FAN Module Installation	108
Thermal Module Removal	109
Thermal Module Installation	110
CPU Removal	111
CPU Installation	111
LCD Module Removal	112
LCD Module Installation	113
LCD Bezel Removal	114
LCD Bezel Installation	115
Camera Module Removal	116
Camera Module Installation	116
LCD Panel Removal	117
LCD Panel Installation	117
LCD Brackets Removal	118
LCD Brackets Installation	118
LVDS Cable Removal	119
LVDS Cable Installation	120
Antenna and Microphone Removal	121
Antenna and Microphone Installation	121
Chapter 4: Troubleshooting	123
Table of Contents	124
Introduction	125
General Information	125
Power On Issues	126
No Display Issues	127
LCD Failure	129
Keyboard Failure	130
Touchpad Failure	131
Internal Speaker Failure	132
Microphone Failure	134
USB Failure	135
WLAN Failure	136
Bluetooth Failure	137
Card Reader Failure	138
Thermal Unit Failure	139
Other Functions Failure	140
Intermittent Problems	140
Undetermined Problems	140
Post Codes	141
POST Code Range	141
Chapter 5: Jumper and Connector Locations	149
Table of Contents	150
Clearing Password Check and BIOS Recovery	153
Clearing Password Check	153
Clear CMOS Jumper	154
BIOS Recovery by Crisis Disk	155
Chapter 6: FRU List	157
Table of Contents	158
Exploded Diagrams	160
FRU List	162
Screw List	179
Chapter 7: Model Definition and Configuration	181
Table of Contents	182
Aspire 7750/7750G	183
Chapter 8: Test Compatible Components	253
Table of Contents	254
Microsoft® Windows® 7 Environment Test	256
Chapter 9: Online Support Information	271
Table of Contents	272
Introduction	273

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