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Acer Aspire 7738G Acer Aspire 7535 Notebook Service Guide - Page 123

Clearing Password Check and BIOS Recovery, Clearing Password Check, G97

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Clearing Password Check and BIOS Recovery This section provides the standard operating procedures for clearing the password and BIOS recovery for Aspire 7738/7738G, Aspire 7735/7735G/7735Z/7735ZG and Aspire 7535/7535G/7235 Series. There is one Hardware Open Gap on the main board for clearing the password check and one Hotkey for enabling BIOS Recovery. Clearing Password Check Hardware Open Gap Description Hardware Gap Default Setting Open (Normal) Operation Description Short (Clearing Password Check) HW Gap position on the main board: Gap name in Aspire Aspire 7738/7738G and Aspire 7735/7735G/7735Z/7735ZG Series is G97. Chapter 5 G97 115

Section	Page
Features	9
System Block Diagram	12
Your Acer Notebook tour	14
Right View	17
Indicators	18
Easy-Launch Buttons	19
Touchpad Basics (with fingerprint reader)	19
Touchpad basics (with two-click buttons)	20
Using the Keyboard	21
Lock Keys and numeric keypad	21
Windows Keys	22
Hot Keys	23
Special Key (only for certain models)	23
Windows Mobility Center	24
Using the System Utilities	25
Acer Bio-Protection (only for certain models)	25
Acer GridVista (dual-display compatible)	26
Hardware Specifications and Configurations	27
BIOS Setup Utility	35
Navigating the BIOS Utility	36
Information	37
Main	39
Security	41
Boot	45
Exit	46
BIOS Flash Utility	47
Remove HDD Password	48
Disassembly Requirements	49
General Information	50
Pre-disassembly Instructions	50
Disassembly Process	50
External Module Disassembly Process	51
External Modules Disassembly Flowchart	51
Removing the Battery Pack	52
Removing the SD Dummy Card	53
Removing the Hard Disk Drive 2 (HDD2) Module	54
Removing the Back Cover	56
Removing the Hard Disk Drive 1 (HDD1) Module	56
Removing the TV Tuner Card (for certain models only)	58
Removing the Wireless LAN Card	60
Removing the DIMM Module	61
Removing the Optical Drive Module	62
Main Unit Disassembly Process	64
Main Unit Disassembly Flowchart	64
Removing the Middle Cover	65
Removing the Keyboard	68
Removing the LCD Module	69
Separating the Upper Case from the Lower Case	72
Removing the Fingerprint/Button and Touchpad Boards	76
Removing the Launch Board	78
Removing the USB Board Module	80
Removing the Modem Module	82
Removing the Main Board	83
Removing the Heatsink Module	86
Removing the CPU	90
LCD Module Disassembly Process	92
LCD Module Disassembly Flowchart	92
Removing the LCD Bezel	93
Removing the LCD panel with the Brackets	96
Removing the LCD Brackets	98
Removing the Web Camera	98
Removing the Microphone Module	99
Removing the FPC Cable	101
Removing the Antennas	102
System Check Procedures	104
External Diskette Drive Check	104
External Optical Disk Drive Check	104
Keyboard or Auxiliary Input Device Check	104
Memory Check	105
Power System Check	105
Touchpad Check	106
Power-On Self-Test (POST) Error Message	106
Index of Error Messages	107
Phoenix BIOS Beep Codes	111
Index of Symptom-to-FRU Error Message	115
Intermittent Problems	119
Undetermined Problems	120
Main Board	121
Clearing Password Check and BIOS Recovery	123
Clearing Password Check	123
BIOS Recovery by Crisis Disk	125
Aspire 7738/7738G Series, Aspire7735/7735G/7735Z/ 7735ZG Series and Aspire 7535/7535G/7235 Series Exploded Diagram	130
Model Definition and Configuration	191
Aspire 7738/7738G Series	192
Aspire 7735/7735G/7735Z/7735ZG Series	201
Aspire 7535/7535G/7235 Series	206
Microsoft® Windows® Vista Environment Test	214
Online Support Information	217

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