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Acer Aspire 5942G Service Guide - Page 104

Removing the RTC Battery, connections shown.

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Removing the RTC Battery IMPORTANT: Follow local regulations for disposal of all batteries. 1. See "Removing the Mainboard" on page 91. 2. The RTC Battery is soldered to the Mainboard. To replace the battery, solder the new battery to the connections shown. 92 Chapter 3

Section	Page
System Specifications	11
Features	11
System Block Diagram	14
Your Acer Notebook tour	15
Front View	15
Closed Front View	17
Rear View	17
Left View	17
Right View	19
Bottom View	20
TouchPad Basics (with fingerprint reader)	21
Using the Keyboard	22
Lock Keys and embedded numeric keypad	22
Windows Keys	23
Hot Keys	24
Special Keys	25
Hardware Specifications and Configurations	26
System Utilities	35
BIOS Setup Utility	35
Navigating the BIOS Utility	35
Information	36
Main	37
Security	38
Boot	41
Exit	42
BIOS Flash Utilities	43
DOS Flash Utility	44
WinFlash Utility	46
Remove HDD/BIOS Password Utilities	47
Machine Disassembly and Replacement	53
Disassembly Requirements	53
General Information	54
Pre-disassembly Instructions	54
Disassembly Process	54
External Module Disassembly Process	55
External Modules Disassembly Flowchart	55
Removing the Battery Pack	56
Removing the Express Dummy Card	57
Removing the SD Dummy Card	58
Removing the Lower Covers	59
Removing the Optical Drive Module	60
Removing the Hard Disk Drive Module	62
Removing the DIMM Modules	64
Removing the WLAN Module	65
Main Unit Disassembly Process	67
Upper Cover Disassembly Flowchart	67
Lower Cover Disassembly Flowchart	68
Removing the Keyboard	69
Removing the Upper Cover	71
Removing the Media Board	74
Removing the Launch Board	76
Removing the Speaker Module	78
Removing the Power Saving Board	80
Removing the Volume Control Board	82
Removing the MIC Board	83
Removing the Button Board and Finger Print Reader	84
Removing the TouchPad Bracket	87
Removing the LCD Module	89
Removing the Saddles	95
Removing the USB Board	97
Removing the Subwoofer	98
Removing the Bluetooth Module	99
Removing the Card Reader Board	101
Removing the Hinge Wells	102
Removing the Mainboard	103
Removing the RTC Battery	104
Removing the VGA/MXM Card	105
Removing the Thermal Module	106
Removing the CPU	108
Main Module Reassembly Procedure	109
Replacing the CPU	109
Replacing the Thermal Module	110
Replacing the VGA/MXM Card	111
Replacing the Mainboard	112
Replacing the Hinge Wells	113
Replacing the Card Reader Board	113
Replacing the Bluetooth Module	114
Replacing the Subwoofer	115
Replacing the USB Board	115
Replacing the Saddles	116
Replacing the LCD Module	117
Replacing the TouchPad Bracket	118
Replacing the Button Board and Finger Print Reader	120
Replacing the MIC Board	123
Replacing the Volume Control Board	124
Replacing the Power Saving Board	125
Replacing the Speaker Module	127
Replacing the Launch Board	129
Replacing the Media Board	131
Replacing the Upper Cover	132
Replacing the Keyboard	136
Replacing the WLAN Module	137
Replacing the DIMM Modules	139
Replacing the Hard Disk Drive Module	139
Replacing the ODD Module	140
Replacing the Lower Covers	141
Replacing the SD Dummy Card	141
Replacing the PCI Express Dummy Card	142
Replacing the Battery	142
Troubleshooting	143
Common Problems	143
Power On Issue	144
No Display Issue	145
Random Loss of BIOS Settings	146
LCD Failure	147
Built-In Keyboard Failure	147
TouchPad Failure	148
Internal Speaker Failure	148
Internal Microphone Failure	150
HDD Not Operating Correctly	151
ODD Failure	152
Modem Function Failure	155
Wireless Function Failure	155
Thermal Unit Failure	156
External Mouse Failure	156
Other Failures	157
Intermittent Problems	158
Undetermined Problems	158
Post Codes	159
Jumper and Connector Locations	165
Top View	165
Bottom View	166
LS-5511P Switch Board	167
LS-5512P Media Board	168
LS-5513P TV-Tuner Board	169
LS-5514P Card Reader Board	170
LS-5515P Touch Pad Button Board	171
LS-5516P Power Saving Board	172
LS-5517P Volume Board	173
LS-5518P Color Engine Board	174
Clearing Password Check and BIOS Recovery	175
Clearing Password Check	175
BIOS Recovery by Crisis Disk	177
FRU (Field Replaceable Unit) List	179
Aspire 5942 Series Exploded Diagrams	180
Main Assembly	180
Base Assembly	181
Aspire 5942 Series FRU List	182
Screw List	189
Model Definition and Configuration	190
Aspire 5942 Series	190
Test Compatible Components	237
Microsoft® Windows® 7 Environment Test	238
Online Support Information	243

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