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Acer Aspire 5538 Acer Aspire 5538 Series Service Guide - Page 175

Wireless Function Failure, WLAN/WiMAX

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Wireless Function Failure If the WLAN/WiMAX fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Start Check Antenna to WLAN/WiMAX C ard OK NG OK Reconnect the Antenna to the card Check Antenna NG Swap the Antenna OK Check WLAN/Wi MAX Card NG Swap WLAN/ WiMAX Card OK Check Function Board NG Swap Function Board Swap Mainboard 165 Chapter 4

Section	Page
System Specifications	11
Features	11
System Block Diagram	14
Your Notebook Tour	15
Front View	15
Closed Front View	16
Left View	16
Right View	17
Base View	18
Rear View	18
Indicators	19
TouchPad Basics	20
Using the Keyboard	21
Lock Keys and embedded numeric keypad	21
Windows Keys	22
Hot Keys	23
Special Keys	24
Hardware Specifications and Configurations	25
System Utilities	33
BIOS Setup Utility	33
Navigating the BIOS Utility	33
Information	34
Main	35
Advanced	36
Security	38
Power	41
Boot	42
Exit	43
BIOS Flash Utility	44
DOS Flash Utility	45
WinFlash Utility	46
Remove HDD/BIOS Password Utilities	47
Removing BIOS Passwords:	48
Miscellaneous Utilities	49
Machine Disassembly and Replacement	52
Disassembly Requirements	52
Related Information	52
General Information	53
Pre-disassembly Instructions	53
Disassembly Process	53
External Module Disassembly Process	54
External Modules Disassembly Flowchart	54
Removing the Battery Pack	55
Removing the Hard Disk Drive Module	56
Removing the Optical Disk Drive Module	59
Removing the DIMM Module	62
Removing the WLAN Board	65
Main Unit Disassembly Process	68
Main Unit Disassembly Flowchart	68
Removing the Keyboard	70
Removing the Upper Cover	72
Removing the Button Board	76
Removing the Touchpad Bracket	79
Removing the Power Board	81
Removing the Speaker Modules	83
Removing the Media Board	85
Removing the Bluetooth Module	87
Removing the I/O Board	88
Removing the DC-In Cable	91
Removing the Mainboard	92
Removing the LCD Module	95
Removing the Fan	97
Removing the Thermal Module	99
Removing the CPU	100
LCD Module Disassembly Process	101
LCD Module Disassembly Flowchart	101
Removing the LCD Bezel	102
Removing the Camera Board	104
Removing the LCD Panel	105
Removing the FPC Cable	106
Removing the LCD Brackets	108
Removing the Microphone	109
Removing the Antennas	111
LCD Module Reassembly Procedure	113
Replacing the Antennas	113
Replacing the Microphone	114
Replacing the LCD Brackets	116
Replacing the FPC Cable	117
Replacing the LCD Panel	118
Replacing the Camera Board	119
Replacing the LCD Bezel	120
Main Unit Reassembly Process	123
Replacing the LCD Module	123
Replacing the CPU	125
Replacing the Thermal Module	125
Replacing the Fan	127
Replacing the Mainboard	129
Replacing the I/O Board	132
Replacing the Bluetooth Module	134
Replacing the Media Board	135
Replacing the Speaker Modules	137
Replacing the Power Board	139
Replacing the Touchpad Bracket	140
Replacing the Button Board	142
Replacing the Upper Cover	144
Replacing the Keyboard	148
External Module Reassembly Process	150
Replacing the WLAN Board	150
Replacing the DIMM Modules	151
Replacing the Hard Disk Drive Module	153
Replacing the ODD	155
Replacing the Lower Covers	157
Replacing the Battery	159
Troubleshooting	162
Common Problems	162
Power On Issue	163
No Display Issue	164
Random Loss of BIOS Settings	165
LCD Failure	166
Built-In Keyboard Failure	166
Touchpad Failure	167
Internal Speaker Failure	167
Internal Microphone Failure	169
HDD Not Operating Correctly	170
ODD Failure	171
USB Failure (Right side)	174
Wireless Function Failure	175
Bluetooth Function Failure	176
Easy Button Failure	176
Thermal Unit Failure	177
External Mouse Failure	178
Other Failures	178
Intermittent Problems	178
Undetermined Problems	179
POST Code Tables	180
Sec	180
Memory	180
DLL Timing Control Registers, RCOMP settings	181
BDS & Specific action:	182
Each PEIM entry point used in 80_PORT	182
Jumper and Connector Locations	187
Top View	187
Bottom View	188
Clearing Password Check and BIOS Recovery	189
Clearing Password Check	189
BIOS Recovery by Crisis Disk	190
FRU (Field Replaceable Unit) List	191
Aspire 5538 Exploded Diagrams	192
Main Assembly	192
LCD Assembly	193
Aspire 5538 FRU List	194
Screw List	201
Model Definition and Configuration	202
Test Compatible Components	218
Windows XP Environment Test	219
Online Support Information	222

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