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Acer Aspire 5349 Aspire 5349, 5749, 5749Z Service Guide - Page 150

USB Failure,

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USB Failure 0 If the USB fails, perform the following: Start OK Check USB/B to M/B cable OK Check USB/B NG Re-assemble the USB/B cable to M/B OK NG Swap USB/B and USB cable Swap M/B Figure 4-8. USB Failure 4-14 Troubleshooting

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
Optical Media Drive	16
Privacy Control	16
Webcam	16
Wireless and networking	17
Dimension and Weight	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
Specification Tables	34
Computer specifications	34
Processor	35
Processor Specifications	36
CPU Fan True Value Table (TJ100-CPU)	36
CPU Fan True Value Table (TJ85-CPU)	37
System Memory	37
Memory Combinations	38
Video Interface	38
BIOS	38
LAN Interface	39
Keyboard	39
Hard Disk Drive (AVL components)	40
LED 15.6”	41
LCD Inverter (not available with this model)	41
Display Supported Resolution (LCD Supported Resolution)	42
Display Supported Resolution (GPU Supported Resolution)	42
Mini Card	44
3G Card (not available in this model)	44
Audio Codec and Amplifier	45
Audio Interface	46
Battery	46
VRAM	47
USB 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 I/O Address Map	54
System I/O Address Map (Continued)	55
System Utilities	57
BIOS Setup Utility	59
Navigating the BIOS Utility	59
BIOS	60
Information	60
Main	62
Advanced	64
Security	65
Power	69
Boot	70
Exit	71
BIOS Flash Utilities	72
DOS Flash Utility	73
WinFlash Utility	74
Clearing BIOS Passwords	75
Removing BIOS Passwords	76
Removing Insyde HDD Password	78
Miscellaneous Tools	79
Using DMITools	79
Using STUUID	82
Using the LAN MAC EEPROM Utility	83
Crisis Disk Recovery	84
Machine Maintenance Procedures	85
Introduction	89
General Information	89
Recommended Equipment	89
Maintenance Flowchart	90
Getting Started	91
Battery Pack Removal	92
Battery Pack Installation	92
Dummy Card Removal	93
Dummy Card Installation	93
Keyboard Removal	94
Keyboard Installation	95
UpperCase Screws and FFC Removal	96
UpperCase Screws and FFC Installation	96
ODD (Optical Disk Drive) Module Removal	97
ODD Module Installation	98
Base Cover Removal	99
Base Cover Installation	99
USB Module Removal	100
USB Module Installation	101
HDD (Hard Disk Drive) Removal	102
Hard Disk Drive Installation	103
RTC (Real Time Clock) Battery Removal	104
RTC Battery Installation	104
WLAN (Wireless Local Area Network) Module Removal	105
WLAN Module Installation	107
Bluetooth Module Removal	108
Bluetooth Module Installation	109
Thermal Module Removal	110
Thermal Module Installation	111
Mainboard Removal	113
Mainboard Installation	114
CPU (Central Processing Unit) Removal	115
CPU Installation	116
PCH (Platform Controller Hub) Removal	117
PCH Installation	118
DIMM (Dual In-line Memory Module) Removal	119
DIMM Installation	120
Power Board Removal	121
Power Board Installation	122
DC-in Jack Removal	123
DC-in Jack Installation	124
Speakers Removal	125
Speakers Installation	125
LCD (Liquid Crystal Display) Module Removal	126
LCD Module Installation	127
LCD Bezel Removal	128
LCD Bezel Installation	129
Camera Module Removal	130
Camera Module Installation	131
LCD Panel Removal	132
LCD Panel Installation	133
LCD Hinge Removal	134
LCD Hinge Installation	134
LVDS Cable Removal	135
LVDS Cable Installation	136
Troubleshooting	137
Introduction	139
General Information	139
Power On Issues	140
No Display Issues	141
LCD Failure	144
Keyboard Failure	145
Touchpad Failure	146
Internal Speaker Failure	147
Microphone Failure	149
USB Failure	150
Other Functions Failure	151
Intermittent Problems	152
Undetermined Problems	152
Post Codes	153
Jumper and Connector Locations	161
Mainboard Jumper and Connector Locations	163
Clearing Password Check and BIOS Recovery	165
Clearing Password Check	165
Clear CMOS Jumper	166
BIOS Recovery by Crisis Disk	166
FRU (Field Replaceable Unit) List	169
Exploded Diagrams	172
FRU List	175
Screw List	184
Model Definition and Configuration	185
Aspire 5349	187
Aspire 5749Z	189
Aspire 5749	191
Test Compatible Components	193
Microsoft® Windows® 7 Environment Test	196
Online Support Information	205

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