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Acer Aspire 4739 Acer Aspire 4339 4739 4739Z Notebook Series Service Guide - Page 144

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
CPU and Chipset	15
System Memory	15
Display	15
Audio Subsystem	15
Graphics	16
Storage Subsystem	16
Optical Media Drive	16
Webcam	16
Wireless and Networking	16
Privacy Control	16
Dimension and Weight	17
Power Adapter and Battery	17
Input and Control	17
Input and Output (I/O) Ports	17
Software	18
Optional Items	19
Warranty	19
Environment	19
Notebook Tour	20
Touchpad Basics	28
Using the Keyboard	29
Windows Keys	30
Hotkeys	31
Specification Tables	34
Computer specifications	34
Processor	35
Processor Specifications	35
CPU Fan True Value Table)	36
System Memory	36
Memory Combinations	37
Video Interface	37
BIOS	37
LAN Controller	38
Keyboard	38
Hard Disk Drive (AVL components)	39
Hard Disk Drive (AVL components) (Continued)	40
Super-Multi Drive	41
Super-Multi Drive (Continued)	42
Super-Multi Drive (Continued)	43
LED 14.0”	44
LCD Inverter (not available with this model)	44
Display Supported Resolution (LCD Supported Resolution)	45
Graphics Controller	45
Display Supported Resolution (GPU Supported Resolution)	45
Bluetooth Interface (not available with this model)	46
Mini Card Wireless Networking Card	46
3G Card (not available in this model)	46
Audio Codec and Amplifier	46
Audio Interface	48
Battery	48
VRAM (not available in this model)	48
USB Port	49
AC Adapter	49
System Power Management	50
Card Reader	50
System LED Indicator	51
System DMA Specification	51
System Utilities	57
BIOS Setup Utility	59
Navigating the BIOS Utility	59
BIOS	60
Information	60
Main	62
Security	64
Boot	68
Exit	69
BIOS Flash Utilities	70
DOS Flash Utility	71
WinFlash Utility	73
Clearing BIOS Passwords	74
Removing BIOS Passwords	75
Removing Insyde HDD Password	77
Miscellaneous Tools	78
Using DMITools	78
Using UUIDTools	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
Base Assembly Removal	96
Base Assembly Installation	97
ODD (Optical Disk Drive) Module Removal	98
ODD Module Installation	99
USB Module Removal	100
USB Module Installation	101
HDD (Hard Disk Drive) Module Removal	102
HDD Module Installation	103
Mainboard Removal	104
Mainboard Installation	106
DIMM (Dual In-line Memory Module) Module Removal	107
DIMM Module Installation	108
WLAN (Wireless Local Area Network) Module Removal	109
WLAN Module Installation	110
Thermal Module Removal	111
Thermal Module Installation	111
CPU Processor Removal	113
CPU Processor Installation	113
Power Switch Board Removal	114
Power Switch Board Installation	114
Speaker Module Removal	115
Speaker Module Installation	116
LCD (Liquid Crystal Display) Module Removal	117
LCD Module Installation	118
DC-in Jack Removal	119
DC-in Jack Installation	120
LCD Bezel Removal	121
LCD Bezel Installation	122
Camera Module Removal	123
Camera Module Installation	124
LCD Panel Removal	125
LCD Panel Installation	126
LCD Bracket Removal	127
LCD Bracket Installation	127
LVDS Cable Removal	128
LVDS Cable Installation	129
Troubleshooting	131
Introduction	133
General Information	133
Power On Issues	134
No Display Issues	135
LCD Picture Failure	138
Internal Keyboard Failure	139
Touchpad Failure	140
Internal Speaker Failure	141
Internal Microphone Failure	143
USB Failure	144
Other Functions Failure	145
Intermittent Problems	146
Undetermined Problems	146
Post Codes	147
Jumper and Connector Locations	155
Mainboard Jumper and Connector Locations	157
Clearing Password Check and BIOS Recovery	159
Clearing Password Check	159
Clear CMOS Jumper	160
BIOS Recovery by Crisis Disk	161
FRU (Field Replaceable Unit) List	163
Exploded Diagrams	166
FRU List	169
Screw List	183
Model Definition and Configuration	185
Acer Aspire 4739Z	187
Test Compatible Components	203
Microsoft® Windows® 7 Environment Test	206
Online Support Information	213

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