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Acer Aspire 5334 Service Guide - Page 89

Removing the CPU

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Removing the CPU IMPORTANT: The pins on the underside of the CPU are very delicate. If they are damaged, the CPU may malfunction. Place the CPU on a clean, dry surface when it is not installed. 1. See "Removing the Thermal Module" on page 76. 2. Using a flat-bladed screw driver, rotate the CPU locking screw 180° counter-clockwise as shown. 3. Lift the CPU clear of the socket as shown. IMPORTANT:Place the CPU on a clean, dry surface when it is not installed. NOTE: The mainboard has been highlighted with a yellow callout in the previous image. Please detach the mainboard and follow local regulations for disposal. Chapter 3 79

Section	Page
System Specifications	11
Features	11
Optical Media Drive	12
System Block Diagram	15
Your Acer Notebook tour	16
Front View	16
Closed Front View	17
Left View	17
Right View	19
Bottom View	19
Indicators	20
TouchPad Basics	21
Using the Keyboard	22
Lock Keys and embedded numeric keypad	22
Windows Keys	23
Hot Keys	24
Hardware Specifications and Configurations	25
System Utilities	33
BIOS Setup Utility	33
Navigating the BIOS Utility	33
HM52-MV Intel BIOS	34
Information	34
Main	35
Security	36
Boot	39
Exit	40
BIOS Flash Utilities	41
DOS Flash Utility	42
WinFlash Utility	44
Remove HDD/BIOS Password Utilities	45
Machine Disassembly and Replacement	53
Disassembly Requirements	53
Pre-disassembly Instructions	54
Disassembly Process	54
External Module Disassembly Process	55
External Modules Disassembly Flowchart	55
Removing the Battery Pack	56
Removing the SD Dummy Card	57
Removing the Lower Covers	58
Removing the Optical Drive Module	59
Removing the DIMM Modules	61
Removing the WLAN Module	62
Removing the Hard Disk Drive Module	65
Removing the Switch Cover	67
Removing the Keyboard	68
Main Unit Disassembly Process	69
Main Unit Disassembly Flowchart	69
Removing the LCD Module	70
Removing the Upper Cover	75
Removing the Power Board	79
Removing the Left Speaker Module	80
Removing the TouchPad Bracket	82
Removing the Mainboard	84
Removing the RTC Battery	85
Removing the Thermal Module	86
Removing the CPU Fan	88
Removing the CPU	89
LCD Module Disassembly Process	90
LCD Module Disassembly Flowchart	90
Removing the LCD Bezel	91
Removing the Camera Module	92
Removing the Inverter Board	93
Removing the LCD Panel	94
Removing the LCD Brackets and FPC Cable	95
Removing the Antennas	97
LCD Module Reassembly Procedure	100
Replacing the Antennas	100
Replacing the LCD Panel	103
Replacing the Camera Module	104
Replacing the Inverter Board	105
Replacing the LCD Bezel	106
Main Module Reassembly Procedure	108
Replacing the CPU	108
Replacing the CPU Fan	109
Replacing the Thermal Module	109
Replacing the Mainboard	110
Replacing the TouchPad Bracket	111
Replacing the Left Speaker Module	113
Replacing the Power Board	113
Replacing the Upper Cover	115
Replacing the LCD Module	119
Replacing the Keyboard	124
Replacing the Switch Cover	125
Replacing the Hard Disk Drive Module	125
Replacing the WLAN Module	127
Replacing the DIMM Modules	129
Replacing the ODD Module	129
Replacing the Lower Covers	130
Replacing the SD Dummy Card	130
Replacing the Battery	131
Troubleshooting	133
Common Problems	133
Power On Issue	134
No Display Issue	135
Random Loss of BIOS Settings	136
LCD Failure	137
Built-In Keyboard Failure	137
TouchPad Failure	138
Internal Speaker Failure	138
HDD Not Operating Correctly	140
ODD Failure	141
Wireless Function Failure	144
Thermal Unit Failure	144
External Mouse Failure	145
Other Failures	145
Intermittent Problems	146
Undetermined Problems	146
Post Codes	147
Jumper and Connector Locations	155
Top View	155
Bottom View	156
Power Board	157
Clearing Password Check and BIOS Recovery	158
Clearing Password Check	158
Clear CMOS Jumper	159
BIOS Recovery by Crisis Disk	160
FRU (Field Replaceable Unit) List	161
JE50_MV Exploded Diagrams	162
Main Assembly	162
Rear Assembly	163
LCD Assembly	164
JE50_MV FRU List	165
Screw List	173
Model Definition and Configuration	174
Test Compatible Components	229
Microsoft® Windows® 7 Environment Test	230
Online Support Information	243

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