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Acer Aspire E1-471 Acer Aspire E1-431 and E1-471 Notebook Service Guide - Page 120

RTC battery Removal

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RTC battery Removal 0 Prerequisite: Mainboard Removal 1. Find the RTC battery (A) on the mainboard. Refer to Figure 3-29. 2. Disconnect the RTC battery cable from mainboard connector (B) (Figure 3-29). C A B Figure 3-29. RTC battery & Thermal Module Location 3. Pry up the the RTC battery from the adhesive and remove it (Figure 3-30). B A 3-30 Figure 3-30. RTC battery Machine Maintenance Procedures

Section	Page
Hardware Specifications	11
Features	15
Operating System	15
CPU	15
Chipset	15
System Memory	15
Display	16
Audio	16
Graphics	16
Storage	17
Optical Media Drive	17
Webcam	17
Wireless and Networking	18
Privacy Control	18
Dimension and Weight	18
Power Adapter and Battery	18
Input and Control	19
Input and Output (I/O) Ports	19
Software	19
Optional Items	20
Warranty	20
Environment	21
Notebook Tour	22
Touchpad Basics	28
Using the Keyboard	29
Windows Keys	30
Hotkeys	31
System Block Diagram	33
Specification Tables	34
Computer specifications	34
System Board Major Chips	35
Processor	35
Processor Specifications	36
CPU Fan True Value Table	36
System Memory	37
Memory Combinations	37
Video Interface	37
BIOS	38
Keyboard	38
Hard Disk Drive (AVL components)	39
Hard Disk Drive (AVL components) (Continued)	40
DVD Super-Multi Drive	41
DVD Super-Multi Drive (Continued)	42
LCD 14.0”	43
LCD 14.0” (Continued)	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)	46
LAN Interface	46
Bluetooth Interface (not available in this model)	46
Bluetooth Module (not available in this model)	47
Wireless Module 802.11b/g/n	47
Mini Card Wireless Networking Card	47
3G Card (not available in this model)	47
Audio Codec and Amplifier	48
Audio Codec and Amplifier (Continued)	49
Audio Interface	49
1.3M HD Camera	50
0.3 M Camera	50
VRAM	50
USB Port	50
HDMI Port	51
Battery	51
AC Adapter	51
System Power Management	52
Card Reader	52
System LED Indicator	53
System DMA Specification	53
System Interrupt Specification	54
System Interrupt Specification (Continued)	55
System Interrupt Specification (Continued)	56
System Interrupt Specification (Continued)	57
System Interrupt Specification (Continued)	58
System I/O Address Map	59
System I/O Address Map (Continued)	60
System Utilities	61
BIOS Setup Utility	63
Navigating the BIOS Utility	63
BIOS	64
Information	64
Main	66
Security	68
Boot	72
Exit	73
BIOS Flash Utilities	74
DOS Flash Utility	75
WinFlash Utility	77
Clearing BIOS Passwords	78
Removing Insyde BIOS Passwords	79
Removing Insyde HDD Password	81
Miscellaneous Tools	82
Using DMITools	82
Using UUIDTools	86
Using the LAN MAC EEPROM Utility	88
Crisis Disk Recovery	89
Machine Maintenance Procedures	91
Introduction	95
General Information	95
Recommended Equipment	95
Maintenance Flowchart	96
Getting Started	97
Battery Pack Removal	98
Battery Pack Installation	99
Dummy Card Removal	100
Dummy Card Installation	100
Keyboard Removal	101
Keyboard Installation	102
Base Door Removal	103
Base Door Installation	103
ODD (Optical Disk Drive) Module Removal	104
ODD Module Installation	105
WLAN (Wireless Local Area Network) Module Removal	106
WLAN Module Installation	107
DIMM (Dual In-line Memory Module) Module Removal	108
DIMM Module Installation	108
HDD (Hard Disk Drive) Module Removal	109
HDD Module Installation	110
Upper Case Removal	111
Upper Case Installation	112
IO Board Removal	113
IO Board Installation	114
Mainboard Removal	115
Mainboard Installation	117
Speaker Module Removal	118
Speaker Module Installation	119
RTC battery Removal	120
RTC battery Installation	121
Thermal Module Removal	122
Thermal Module Installation	123
CPU Processor Removal	124
CPU Processor Installation	125
LCD (Liquid Crystal Display) Module Removal	126
LCD Module Installation	127
DC-in Jack Removal	128
DC-in Jack Installation	128
Support Bracket Removal	129
Support Bracket Installation	129
LCD Bezel Removal	130
LCD Bezel Installation	132
Camera Module Removal	133
Camera Module Installation	134
LCD Panel Removal	135
LCD Panel Installation	136
LCD Bracket Removal	137
LCD Bracket Installation	137
LVDS and Camera Cable Removal	138
LVDS and Camera Cable Installation	140
Troubleshooting	141
Introduction	143
General Information	143
Power On Issues	144
No Display Issues	146
LCD Picture Failure	148
Internal Keyboard Failure	149
Touchpad Failure	150
Internal Speaker Failure	151
Internal Microphone Failure	153
USB Failure	154
Other Functions Failure	155
Intermittent Problems	156
Undetermined Problems	156
Post Codes	157
Jumper and Connector Locations	165
Mainboard Jumper and Connector Locations	167
Clearing Password Check and BIOS Recovery	169
Clearing Password Check	169
BIOS Recovery by Crisis Disk	171
FRU (Field Replaceable Unit) List	173
Exploded Diagrams	176
FRU List	180
Screw List	192
Model Definition and Configuration	193
Acer Aspire E1-431	195
Acer Aspire E1-431G	214
Acer Aspire E1-471	218
Acer Aspire E1-471G	226
Test Compatible Components	237
Microsoft® Windows® 7 Environment Test	240
Online Support Information	249

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