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Acer Aspire 4736Z Acer Aspire 4336 Notebook Series Service Guide - Page 55

Cleaning BIOS Passwords, From a DOS prompt, Execute

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Cleaning BIOS Passwords To clear the password, perform the following steps: 1. From a DOS prompt, Execute clnpwd.exe 2. Press 1 or 2 to clean the desired password shown on the screen. The onscreen message determines whether the function is successful or not. Chapter 2 45

Section	Page
System Specifications	11
Features	11
System Block Diagram	14
Your Acer Notebook tour	15
Front View	15
Closed Front View	16
Left View	17
Right View	18
Rear View	18
Bottom View	19
Indicators	20
Easy-Launch Buttons	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 Key	25
Using the System Utilities	26
Acer GridVista (dual-display compatible)	26
Hardware Specifications and Configurations	28
System Utilities	39
BIOS Setup Utility	39
Navigating the BIOS Utility	39
Information	40
Main	41
Security	42
Power	45
Boot	47
Exit	48
BIOS Flash Utility	49
DOS Flash Utility	50
WinFlash Utility	52
Remove HDD/BIOS Password Utilities	53
Removing BIOS Passwords:	54
Miscellaneous Utilities	56
Machine Disassembly and Replacement	59
Disassembly Requirements	59
General Information	60
Pre-disassembly Instructions	60
Disassembly Process	60
External Module Disassembly Process	61
External Modules Disassembly Flowchart	61
Removing the Battery Pack	62
Removing the SD dummy card	63
Removing the Lower Covers	64
Removing the WLAN Module	66
Removing the DIMM Modules	67
Removing the Hard Disk Drive Module	68
Removing the Optical Disk Drive Module	70
Main Unit Disassembly Process	72
Main Unit Disassembly Flowchart	72
Removing the Hinge Covers	74
Removing the Switch Cover	75
Removing the Keyboard	77
Removing the Speaker Module	78
Removing the LCD Module	80
Removing the Upper Base	85
Removing the Finger Print Reader	88
Removing the TouchPad Bracket	90
Removing the Media Board	92
Removing the USB Board	94
Removing the Modem Module	96
Removing the Bluetooth Module	97
Removing the Mainboard	98
Removing the RJ-11 Port	100
Removing the Thermal Module	102
Removing the CPU	104
LCD Module Disassembly Process	105
LCD Module Disassembly Flowchart	105
Removing the LCD Bezel	106
Removing the Camera Module	108
Removing the LCD Panel	109
Removing the LCD Brackets and FPC Cable	111
Removing the Antennas	112
Removing the MIC Module	113
LCD Module Reassembly Procedure	114
Replacing the MIC Module	114
Replacing the Antennas	115
Replacing the LCD Panel	118
Replacing the Camera Module	120
Replacing the LCD Bezel	121
Main Module Reassembly Procedure	122
Replacing the CPU	122
Replacing the Thermal Module	123
Replacing the RJ-11 Port	124
Replacing the Mainboard	126
Replacing the Bluetooth Board	127
Replacing the Modem Module	127
Replacing the USB Board	128
Replacing the Media Board	129
Replacing the TouchPad Bracket	131
Replacing the Finger Print Reader	131
Replacing the Upper Cover	133
Replacing the LCD Module	136
Replacing the Speaker Module	140
Replacing the Keyboard	141
Replacing the Switch Cover	142
Replacing the Hinge Covers	144
Replacing the ODD Module	145
Replacing the Hard Disk Drive Module	146
Replacing the DIMM Modules	146
Replacing the WLAN Module	147
Replacing the Lower Covers	147
Replacing the SD Card Dummy Trays	148
Replacing the Battery	148
Troubleshooting	149
Common Problems	149
Power On Issue	150
No Display Issue	151
Random Loss of BIOS Settings	152
LCD Failure	153
Built-In Keyboard Failure	153
Touchpad Failure	154
Internal Speaker Failure	154
Internal Microphone Failure	156
HDD Not Operating Correctly	157
ODD Failure	158
USB Failure (Rightside)	161
Modem Function Failure	161
Wireless Function Failure	162
Bluetooth Function Failure	162
EasyTouch Button Failure	163
Media Board Failure	163
Fingerprint Reader Failure	164
Thermal Unit Failure	164
External Mouse Failure	165
Other Failures	165
Intermittent Problems	166
Undetermined Problems	166
POST Codes Tables	167
Sec:	167
Memory:	167
BDS & Specific action:	168
Each PEIM entry point used in 80_PORT	169
Each Driver entry point used in 80_PORT	169
Each SmmDriver entry point used in 80_PORT	172
Jumper and Connector Locations	173
Top View	173
Bottom View	174
Clearing Password Check and BIOS Recovery	175
Clearing Password Check	175
BIOS Recovery by Crisis Disk	176
FRU (Field Replaceable Unit) List	177
Aspire 4736G/4736Z Series Exploded Diagrams	178
Main Module	178
Aspire 4736G/4736Z Series FRU List	179
Screw List	185
Model Definition and Configuration	186
Aspire 4736G/4736Z Series	186
Test Compatible Components	187
Microsoft® Windows® Vista Environment Test	188
Online Support Information	193

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