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Acer Aspire V5-571G Acer Aspire V5-531 Notebook Service Guide - Page 174

Thermal Unit Failure,

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Thermal Unit Failure 0 If the Thermal Unit fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-11. Thermal Unit Failure 4-16 Troubleshooting

Section	Page
Aspire MS2361 Service Guide	1
CHAPTER 1 - Hardware Specifications	9
Hardware Specifications and Configurations	13
Features	13
Operating System	13
Platform	13
System Memory	13
Display	13
Graphics	13
Storage Subsystem	14
Audio Subsystem	14
Communication	15
Privacy Control	15
Power Adapter and Battery	15
Keyboard and Pointing Device	15
I/O Ports	16
Software and Tools	16
Warranty	18
Dimensions and Weight	18
Environment	18
Notebook Tour	19
Open Front View	19
Close Front View	20
Left View	21
Right View	22
Base View	23
Touchpad Basics	24
Keyboard	25
D2D Recovery	29
System Block Diagram	30
Specification Tables	31
CHAPTER 2 - System Utilities	59
System Utilities	61
BIOS Setup Utility	61
Navigating the BIOS Utility	61
BIOS Menus	62
Main	64
Security	66
Boot	69
Exit	70
BIOS Flash Utilities	71
DOS Flash Utility	72
WinFlash Utility	72
Remove HDD/BIOS Password Utilities	73
Removing the HDD Password	73
Removing the BIOS Passwords	74
Clearing the BIOS Passwords	75
Using DMI Tools	76
LAN EEPROM Utility	76
CHAPTER 3 - Machine Maintenance	77
Machine Maintenance	81
Machine Disassembly and Replacement	81
Recommended Equipment	81
Replacement Requirements	81
Pre-disassembly Instructions	82
Disassembly Process	83
External Module Disassembly Process	84
External Modules Disassembly Flowchart	84
Removing the Battery Pack	85
Removing the DIMM Cover	86
Removing the DIMM Modules	87
Removing the Keyboard	88
Removing the ODD Module	90
Main Unit Disassembly Process	93
Main Unit Disassembly Flowchart	93
Removing the Palmrest Module/Upper Case	94
Removing the Touchpad Board	97
Removing the Power Button Board	99
Removing the SATA Board	101
Removing the HDD Module	102
Removing the WLAN Module	103
Removing the Mainboard	105
Removing the Thermal Module	108
Removing the DC In Module	110
Removing the Battery Connector	111
Removing the Speaker Module	112
Removing the LCD Module	114
LCD Module Disassembly Process	116
LCD Module Disassembly Flowchart	116
Removing the LCD Bezel	117
Removing the Camera Board	118
Removing the LCD Panel	119
Removing the LCD FPC Cable	120
Removing the LCD Brackets	121
Removing the Microphone	122
LCD Module Reassembly Process	123
Reinstalling the Microphone	123
Reinstalling the LCD Brackets	124
Reinstalling the LCD FPC Cable	125
Reinstalling the LCD Panel	126
Reinstalling the Camera Board	127
Reinstalling the LCD Bezel	128
Main Unit Reassembly Process	129
Reinstalling the LCD Module	129
Reinstalling the Speaker Module	131
Reinstalling the Battery Connector	133
Reinstalling the DC In Module	134
Reinstalling the Thermal Module	135
Reinstalling the Mainboard	137
Reinstalling the WLAN Module	140
Reinstalling the HDD Module	142
Reinstalling the SATA Board	143
Reinstalling the Power Button Board	144
Reinstalling the Touchpad Board	146
Reinstalling the Palmrest Module/Upper Case	148
External Module Reassembly Process	150
Reinstalling the ODD Module	150
Reinstalling the Keyboard	153
Reinstalling the DIMM Modules	155
Reinstalling the DIMM Cover	156
Reinstalling the Battery Pack	157
CHAPTER 4 - Troubleshooting	159
Troubleshooting	161
Introduction	161
General Information	161
Power On Issues	162
No Display Issues	163
LCD Failure	165
Keyboard Failure	166
Touchpad Failure	167
Internal Speaker Failure	168
Microphone Failure	170
USB Failure	171
WLAN Failure	172
Card Reader Failure	173
Thermal Unit Failure	174
Other Functions Failure	175
Intermittent Problems	176
Undetermined Problems	176
Error Codes	177
POST Codes	183
CHAPTER 5 - Jumper and Connector Locations	189
Jumper and Connector Locations	191
Mainboard Layout	191
Clearing Password Check and BIOS Recovery	195
Clearing the BIOS Passwords	195
Performing a BIOS Recovery	196
CHAPTER 6 - FRU List	199
FRU (Field Replaceable Unit) List	201
Exploded Diagrams	202
Main Assembly	202
LCD Assembly	204
CHAPTER 7 - Test Compatible Components	219
Test Compatible Components	221
Microsoft Windows 7 Environment Test	221
CHAPTER 8 - Online Support Information	227

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