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Acer AOD270 Acer Aspire One D270 Service Guide - Page 135

Other Functions Failure, Change mainboard to check if current one is defective.

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Other Functions Failure 0 1. Check if drives are functioning correctly. 2. Check if external modules are functioning correctly. 3. Change mainboard to check if current one is defective. Troubleshooting 4-15

Section	Page
Hardware Specifications	11
Features	15
Operating System	15
Platform	15
System Memory	15
Display	15
Audio Subsystem	15
Graphics	16
Storage Subsystem	16
Privacy Control	16
Webcam	16
Wireless and networking	17
Dimension and Weight	17
Color options	17
Power Adapter and Battery	17
Input and Controls	18
I/O Ports	18
Optional Items	18
Warranty	18
Eco-compliance	18
Environment	19
Software	20
Notebook Tour	21
Touchpad Basics	28
Using the Keyboard	29
Windows Keys	30
Hotkeys	31
Using the communication key*	32
System Block Diagram	33
Specification Tables	34
Computer specifications	34
System Board Major Chips	35
Processor	35
Processor Specifications	35
CPU Fan True Value Table (AC/DC Mode)	36
System Memory	36
Memory Combinations	36
Video Interface	37
BIOS	37
Keyboard	37
Hard Disk Drive (AVL components)	38
LCD 10.1”	39
LCD 10.1” (Continued)	40
LCD Inverter (not available with this model)	41
Display Supported Resolution (LCD Supported Resolution)	41
Graphics Controller	41
Display Supported Resolution (GPU Supported Resolution)	42
LAN Interface	42
Bluetooth Interface	42
Bluetooth Module	43
Camera	44
Mini Card	44
3G Card	44
Audio Codec and Amplifier	45
Audio Interface	46
Wireless Module 802.11b/g/n	46
Battery	46
VRAM	47
USB Port	47
HDMI Port	47
AC Adapter	47
System Power Management	48
Card Reader	48
System LED Indicator	49
System DMA Specification	49
System Interrupt Specification	50
System IO Address Map	51
System Utilities	53
BIOS Setup Utility	55
Navigating the BIOS Utility	55
BIOS	56
Information	56
Main	58
Security	60
Boot	64
Exit	65
BIOS Flash Utilities	66
DOS Flash Utility	67
WinFlash Utility	68
Clearing BIOS Passwords	69
Removing BIOS Passwords	70
Removing Insyde HDD Password	71
Miscellaneous Tools	72
Using DMITools	72
Using UUID Tools	76
Using the LAN MAC EEPROM Utility	77
Crisis Disk Recovery	78
Machine Maintenance Procedures	79
Introduction	83
General Information	83
Recommended Equipment	83
Maintenance Flowchart	84
Getting Started	85
Battery Pack Removal	86
Battery Pack Installation	86
Dummy Card Removal	87
Dummy Card Installation	87
Keyboard Removal	88
Keyboard Installation	89
Base Cover Removal	90
Base Cover Installation	91
HDD (Hard Disk Drive) Removal	92
Hard Disk Drive Installation	94
3G Module Removal	95
3G Module Installation	95
WLAN (Wireless Local Area Network) Module Removal	96
WLAN Module Installation	96
DIMM (Dual In-line Memory Module) Removal	97
DIMM Installation	97
Upper Case Removal	98
Upper Case Installation	99
Bluetooth Module Removal	100
Bluetooth Module Installation	100
Mainboard Removal	101
Mainboard Installation	102
Speakers Removal	103
Speakers Installation	103
Thermal Module Removal	104
Thermal Module Installation	105
LCD (Liquid Crystal Display) Module Removal	106
LCD Module Installation	107
LCD Bezel Removal	108
LCD Bezel Installation	110
Microphone Removal	111
Microphone Installation	112
LCD Hinge Removal	113
LCD Hinge Installation	113
LCD Panel Removal	114
LCD Panel Installation	115
LVDS Cable Removal	116
LVDS Cable Installation	118
Camera Module Removal	119
Camera Module Installation	119
Troubleshooting	121
Introduction	123
General Information	123
Power On Issues	124
No Display Issues	125
LCD Failure	128
Keyboard Failure	129
Touchpad Failure	130
Internal Speaker Failure	131
Microphone Failure	133
USB Failure	134
Other Functions Failure	135
Intermittent Problems	136
Undetermined Problems	136
Post Codes	137
Jumper and Connector Locations	145
Mainboard Jumper and Connector Locations	147
Clearing Password Check and BIOS Recovery	149
Clearing Password Check	149
BIOS Recovery by Crisis Disk	150
FRU (Field Replaceable Unit) List	151
Exploded Diagrams	154
FRU List	157
Screw List	207
Model Definition and Configuration	209
Aspire One D270	211
Test Compatible Components	393
Microsoft® Windows® 7 Environment Test	396
Online Support Information	403

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