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Acer Aspire 7715Z Service Guide - Page 85

Removing the RTC Battery, connections shown.

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Removing the RTC Battery IMPORTANT:Follow local regulations for disposal of all batteries. The RTC Battery is soldered to the Mainboard. To replace the battery, solder the new battery to the connections shown. Chapter 3 75

Section	Page
System Specifications	11
Features	11
System Block Diagram	13
Your Acer Notebook tour	14
Front View	14
Closed Front View	15
Rear View	16
Left View	16
Right View	17
Bottom View	17
Indicators	18
TouchPad Basics	19
Using the Keyboard	20
Lock Keys and embedded numeric keypad	20
Windows Keys	21
Hot Keys	22
Hardware Specifications and Configurations	23
System Utilities	31
BIOS Setup Utility	31
Navigating the BIOS Utility	31
HM70-MV Intel BIOS	32
Information	32
Main	33
Advanced	34
Security	36
Power	39
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
Pre-disassembly Instructions	54
Disassembly Process	54
External Module Disassembly Process	55
External Modules Disassembly Flowchart	55
Removing the Battery Pack	56
Removing the SD Dummy Card	57
Removing the Lower Covers	58
Removing the Optical Drive Module	59
Removing the DIMM Modules	61
Removing the WLAN Module	62
Removing the Hard Disk Drive Module	64
Main Unit Disassembly Process	66
Main Unit Disassembly Flowchart	66
Removing the Switch Cover	67
Removing the Keyboard	68
Removing the LCD Module	69
Removing the Upper Cover	73
Removing the Power Board	77
Removing the Left Speaker Module	78
Removing the Right Speaker Module	80
Removing the TouchPad Bracket	82
Removing the Mainboard	84
Removing the RTC Battery	85
Removing the Thermal Module	86
Removing the CPU Fan	88
Removing the CPU	90
LCD Module Disassembly Process	91
LCD Module Disassembly Flowchart	91
Removing the LCD Bezel	92
Removing the Camera Module	93
Removing the LCD Panel	94
Removing the LCD Brackets and FPC Cable	96
Removing the Antennas	98
LCD Module Reassembly Procedure	101
Replacing the Antennas	101
Replacing the LCD Panel	104
Replacing the Camera Module	106
Replacing the LCD Bezel	107
Main Module Reassembly Procedure	109
Replacing the CPU	109
Replacing the CPU Fan	110
Replacing the Thermal Module	110
Replacing the Mainboard	111
Replacing the TouchPad Bracket	112
Replacing the Right Speaker Module	114
Replacing the Left Speaker Module	115
Replacing the Power Board	116
Replacing the Upper Cover	116
Replacing the LCD Module	120
Replacing the Keyboard	125
Replacing the Switch Cover	126
Replacing the Hard Disk Drive Module	126
Replacing the WLAN Module	128
Replacing the DIMM Modules	128
Replacing the ODD Module	129
Replacing the Lower Covers	129
Replacing the SD Dummy Card	130
Replacing the Battery	131
Troubleshooting	133
Common Problems	133
Power On Issue	134
No Display Issue	135
Random Loss of BIOS Settings	136
LCD Failure	137
Built-In Keyboard Failure	137
TouchPad Failure	138
Internal Speaker Failure	138
HDD Not Operating Correctly	140
ODD Failure	141
Wireless Function Failure	144
Thermal Unit Failure	144
External Mouse Failure	145
Other Failures	145
Intermittent Problems	146
Undetermined Problems	146
Post Codes	147
Sec:	147
Memory:	147
BDS & Specific action:	148
Each PEIM entry point used in 80_PORT	150
Each Driver entry point used in 80_PORT	150
Each SmmDriver entry point used in 80_PORT	154
Jumper and Connector Locations	155
Top View	155
Bottom View	156
Power Board	157
LS-4852P ODD Board	157
LS-4853P Battery Board	158
LS-4854P Lid Board	158
Clearing Password Check and BIOS Recovery	159
Clearing Password Check	159
Clear CMOS Jumper	159
BIOS Recovery by Crisis Disk	160
FRU (Field Replaceable Unit) List	161
Aspire 7715Z/7315 Exploded Diagrams	162
Main Assembly	162
Base Assembly	163
Rear Assembly	164
Aspire 7715Z/7315 FRU List	165
Screw List	173
Model Definition and Configuration	174
Aspire 7315	175
Aspire 7715Z	177
Test Compatible Components	191
Microsoft® Windows® 7 Environment Test	192
Online Support Information	195

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