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Acer Aspire 7736Z Acer Aspire 7540 Service Guide - Page 113

Clearing Password Check and BIOS Recovery, Clearing Password Check, G78

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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 7736/7736Z/7336 and Aspire 7540 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) HW Gap position on the main board: Gap name in 7736/7736Z/7336 Series is G78. Operation Description Short (Clearing Password Check) Chapter 5 G78 105

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 SD Dummy Card	52
Removing the Battery Pack	53
Removing the Back Cover	54
Removing the Hard Disk Drive Module	56
Removing the Wireless LAN Card	58
Removing the DIMM Module	59
Removing the Heatsink Module	60
Removing the CPU	62
Removing the Optical Drive Module	63
Main Unit Disassembly Process	65
Main Unit Disassembly Flowchart	65
Removing the Middle Cover	66
Removing the Keyboard	68
Removing the LCD Module	69
Separating the Upper Case from the Lower Case	71
Removing the Fingerprint/Button and Touchpad Boards	74
Removing the USB Board Module	77
Removing the Modem Board	79
Removing the Bluetooth Board	80
Removing the Microphone Module	82
Removing the Main Board	83
LCD Module Disassembly Process	85
LCD Module Disassembly Flowchart	85
Removing the LCD Bezel	86
Removing the LCD panel with the Brackets	87
Removing the LCD Brackets	89
Removing the Web Camera	89
Removing the FPC Cable	90
Removing the Antennas	92
System Check Procedures	94
External Diskette Drive Check	94
External Optical Disk Drive Check	94
Keyboard or Auxiliary Input Device Check	94
Memory Check	95
Power System Check	95
Touchpad Check	96
Power-On Self-Test (POST) Error Message	96
Index of Error Messages	97
Phoenix BIOS Beep Codes	101
Index of Symptom-to-FRU Error Message	105
Intermittent Problems	109
Undetermined Problems	110
Main Board	111
Clearing Password Check and BIOS Recovery	113
Clearing Password Check	113
BIOS Recovery by Crisis Disk	115
Aspire 7736/7736Z/7336 Series and Aspire 7540 Series Exploded Diagram	120
Model Definition and Configuration	151
Aspire 7736/7736Z/7336 Series	152
Microsoft® Windows® Vista Environment Test	180
Online Support Information	183

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