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Acer Aspire One AOD150 Aspire One AOD150 Series Service Guide - Page 127

Troubleshooting, Common Problems - display problem

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Troubleshooting Chapter 4 Common Problems Use the following procedure as a guide for computer problems. NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Obtain the failing symptoms in as much detail as possible. 2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation. 3. Use the following table with the verified symptom to determine which page to go to. Symptoms (Verified) Go To Power On Issue Page 118 No Display Issue Page 119 LCD Failure Page 121 Internal Keyboard Failure Page 121 TouchPad Failure Page 122 Internal Speaker Failure Page 122 Internal Microphone Failure Page 124 Rightside USB Failure Page 126 Power Button Failure Page 126 Other Functions Failure Page 127 Intermittent Failures Page 128 Undermined Failures Page 128 4. If the Issue is still not resolved, see "Online Support Information" on page 217. Chapter 4 117

Section	Page
System Specifications	11
Features	11
System Block Diagram	13
Your Acer Notebook tour	14
Front View	14
Closed Front View	15
Left View	15
Right View	16
Bottom View	16
Indicators	17
TouchPad Basics	18
Using the Keyboard	19
Lock Keys and embedded numeric keypad	19
Windows Keys	20
Hot Keys	21
Special Key	22
Hardware Specifications and Configurations	23
System Utilities	29
BIOS Setup Utility	29
Navigating the BIOS Utility	29
Information	30
Main	31
Advanced	32
Security	33
Power	36
Boot	38
Exit	39
BIOS Flash Utility	40
DOS Flash Utility	41
WinFlash Utility	43
Remove HDD/BIOS Password Utilities	44
Miscellaneous Utilities	47
Machine Disassembly and Replacement	49
Disassembly Requirements	49
Related Information	49
General Information	50
Pre-disassembly Instructions	50
Disassembly Process	50
External Module Disassembly Process	51
External Modules Disassembly Flowchart	51
Removing the Battery Pack	52
Removing the SD Dummy Card	53
Removing the Lower Covers	54
Removing the Hard Disk Drive Module	56
Removing the DIMM Module	58
Removing the WLAN Module	59
Main Unit Disassembly Process	61
Main Unit Disassembly Flowchart	61
Removing the Keyboard	62
Removing the Upper Cover	64
Removing the Power Board	68
Removing the TouchPad Bracket	70
Removing the LCD Module	73
Removing the RTC Battery	76
Removing the USB Board and Cable	77
Removing the Bluetooth Module	79
Removing the Mainboard and Power Cable	81
Removing the Speaker Module	84
Removing the Thermal Module	86
LCD Module Disassembly Process	88
LCD Module Disassembly Flowchart	88
Removing the LCD Bracket Extensions	89
Removing the LCD Bezel	90
Removing the Camera Board	92
Removing the LCD Panel	93
Removing the LCD Brackets and FPC Cable	94
Removing the Microphone Board	96
Removing the Camera Cable	97
Removing the Antennas	98
LCD Module Reassembly Procedure	99
Replacing the Antennas, Camera Cable, and MIC	99
Replacing the LCD Cable and Brackets	101
Replacing the LCD Panel	103
Replacing the Camera Module	104
Replacing the LCD Bezel	105
Replacing the LCD Bracket Extensions	107
Main Module Reassembly Procedure	108
Replacing the Thermal Module	108
Replacing the Speaker Module	109
Replacing the Mainboard	111
Replacing the Bluetooth Module	112
Replacing the USB Board	113
Replacing the LCD Module	114
Replacing the TouchPad Bracket	117
Replacing the Power Board	118
Replacing the Upper Cover	119
Replacing the Keyboard	122
Replacing the WLAN Board	123
Replacing the DIMM Module	124
Repl[acing the Hard Disk Drive Module	124
Replacing the Lower Covers	125
Replacing the SD Dummy Card	126
Replacing the Battery	126
Troubleshooting	127
Common Problems	127
Power On Issue	128
No Display Issue	129
Random Loss of BIOS Settings	130
LCD Failure	131
Built-In Keyboard Failure	131
TouchPad Failure	132
Internal Speaker Failure	132
Internal Microphone Failure	134
HDD Not Operating Correctly	135
USB Failure (Rightside)	136
Power Button Failure	136
External Mouse Failure	137
Other Failures	137
Intermittent Problems	138
Undetermined Problems	138
POST Code Reference Tables	139
Sec:	139
Memory:	139
BDS & Specific action:	140
Each PEIM entry point used in 80_PORT	141
Each Driver entry point used in 80_PORT	141
Each SmmDriver entry point used in 80_PORT	144
Jumper and Connector Locations	145
Top View	145
Bottom View	146
Clearing Password Check and BIOS Recovery	147
Clearing Password Check	147
BIOS Recovery by Crisis Disk	148
FRU (Field Replaceable Unit) List	149
Aspire one Exploded Diagrams	150
Main Assembly	150
Upper Cover Assembly	151
Lower Cover Assembly	152
LCD Assembly	153
Aspire one FRU List	154
Screw List	167
Model Definition and Configuration	168
Aspire one Series	168
Test Compatible Components	221
Windows XP Environment Test	222
Online Support Information	227

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