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Acer Aspire 1810TZ Acer Aspire 1410, 1810T, and 1810TZ Service Guide - Page 159

Clearing Password Check and BIOS Recovery, Mainboard CMOS Discharge

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Clearing Password Check and BIOS Recovery This section provides a procedure for clearing the password and BIOS. The Hardware Open Gap on the main board clears the CMOS of all user settings and restores factory defaults. Mainboard CMOS Discharge Discharging the CMOS clears all user settings. 1. Disassemble the notebook and take out the Mainboard. See "Removing the Mainboard" on page 71. 2. Remove the RTC battery. See "Removing the RTC Battery" on page 75. 3. Turn the mainboard over and short the G2 pad. 4. Reconnect the RTC battery and reassemble the unit. Chapter 5 149

Section	Page
System Specifications	11
Features	11
System Block Diagram	14
Your Notebook Tour	15
Front View	15
Left View	17
Right View	17
Base View	18
Rear View	18
Indicators	19
TouchPad Basics	20
Using the Keyboard	21
Lock Keys and embedded numeric keypad	21
Windows Keys	22
Hot Keys	23
Special Keys	24
Hardware Specifications and Configurations	25
System Utilities	35
BIOS Setup Utility	35
Navigating the BIOS Utility	35
Information	36
Main	37
Security	38
Boot	41
Exit	42
BIOS Flash Utility	43
DOS Flash Utility	44
WinFlash Utility	45
Remove HDD/BIOS Password Utilities	46
Removing BIOS Passwords:	47
Miscellaneous Utilities	48
Machine Disassembly and Replacement	51
Disassembly Requirements	51
Related Information	51
Replacement Requirements	51
Pre-disassembly Instructions	52
Disassembly Process	53
External Module Disassembly Process	54
External Modules Disassembly Flowchart	54
Removing the Battery Pack	55
Removing the Dummy Card	56
Removing the Hard Disk Drive Module	57
Removing the DIMM Module	60
Removing the WLAN Module	62
Main Unit Disassembly Process	64
Main Unit Disassembly Flowchart	64
Removing the Keyboard	66
Removing the Upper Cover	68
Removing the Button Board	71
Removing the LCD Module	74
Removing the LED Board	76
Removing the Bluetooth Module	78
Removing the I/O Board	79
Removing the Mainboard	81
Removing the CRT Board	83
Removing the Thermal Module	84
Removing the RTC Battery	85
Removing the Speaker Modules	86
LCD Module Disassembly Process	88
LCD Module Disassembly Flowchart	88
Removing the LCD Bezel	89
Removing the Camera Board	92
Removing the LCD Panel	93
Removing the LCD Brackets	95
Removing the FPC Cable	96
Removing the Antennas	97
LCD Reassembly Procedure	100
Replacing the Antennas	100
Replacing the FPC Cable	103
Replacing the LCD Brackets	104
Replacing the LCD Panel	105
Replacing the Camera Board	107
Replacing the LCD Bezel	108
Main Unit Reassembly Process	111
Replacing the Speaker Modules	111
Replacing the RTC Battery	113
Replacing the Thermal Module	114
Replacing the CRT Board	115
Replacing the Main Board	116
Replacing the I/O Card	118
Replacing the Bluetooth Module	120
Replacing the LED Board	121
Replacing the LCD Module	123
Replacing the Button Board	125
Replacing the Upper Cover	128
Replacing the Keyboard	131
Replacing the Wireless LAN Module	132
Replacing the DIMM Module	134
Replacing the Hard Disk Drive	136
Replacing the Battery	138
Replace the Dummy Card	139
Troubleshooting	141
Common Problems	141
Power On Issue	142
No Display Issue	143
Random Loss of BIOS Settings	144
LCD Failure	145
Built-In Keyboard Failure	146
TouchPad Failure	147
Internal Speaker Failure	148
Internal Microphone Failure	149
HDD Not Operating Correctly	150
USB Failure (Right up/down side)	151
Other Failures	151
Intermittent Problems	152
Undetermined Problems	152
POST Code Reference Tables	153
Jumper and Connector Locations	157
Mainboard Top View	157
Mainboard Bottom View	158
Clearing Password Check and BIOS Recovery	159
Mainboard CMOS Discharge	159
BIOS Recovery by Crisis Disk	160
FRU (Field Replaceable Unit) List	161
Aspire 1810T/1410 Series Exploded Diagrams	161
Main Assembly	162
LCD Assembly	163
Screw List	169
Model Definition and Configuration	171
Test Compatible Components	229
Online Support Information	233

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