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Acer TravelMate 4070 TravelMate 4070 Service Guide - Page 8

System Block Diagram

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System Block Diagram Chapter 1 3

Section	Page
Features	6
System Block Diagram	8
Board Layout	9
Top View	9
Bottom View	10
Panel	12
Front view	12
Closed front view	13
Left view	13
Right view	14
Rear view	14
Bottom view	15
Indicators	16
Easy-Launch Buttons	17
Using the keyboard	18
Lock keys and embedded numeric keypad	18
Windows keys	18
Hot Keys	19
Special keys	20
Touchpad	22
Touchpad basics	22
Acer Empowering Technology	23
Acer eDataSecurity Management	23
Acer eLock Management	25
Acer ePerformance Management	26
Acer eRecovery Management	27
Acer eSettings Management	28
Acer eNet Management	29
Acer ePower Management	30
Hardware Specifications and Configurations	33
BIOS Setup Utility	43
Navigating the BIOS Utility	44
Information	45
Main	47
Security	49
Boot	53
Exit	54
BIOS Flash Utility	55
Create Crisis Recovery Diskette	55
Recover BIOS from Crisis Recovery Diskette	55
General Information	58
Before You Begin	58
Disassembly Procedure Flowchart	59
Removing the Battery	61
Removing the Hard Disc Drive Module	62
Disassembling the Hard Disc Drive Module	62
Removing the Optical Disc Drive Module	63
Disassembling the Optical Disc Drive Module	63
Removing the Memory	64
Removing the LCD Module	65
Removing the Middle Cover	65
Removing the Keyboard	65
Removing the Fan, the CPU Thermal Module and the CPU	65
Removing the Wireless LAN Card	66
Removing the LCD Module	66
Disassembling the LCD Module	68
Removing the LCD Bezel	68
Disassembling the Main Unit	70
Removing the Upper Case Assembly	70
Removing the Power Board	70
Removing the Touchpad Bracket, the Touchpad Board and the Touchpad	71
Removing the Speaker Set	72
Removing the SW DJ Board Assembly	72
Removing the Audio Board	73
Removing the VGA Thermal Module	73
Removing the Modem Board	74
Removing the Main Board	74
Removing the Control Board	75
System Check Procedures	78
External Diskette Drive Check	78
External CD-ROM Drive Check	78
Keyboard or Auxiliary Input Device Check	78
Memory check	79
Power System Check	79
Touchpad Check	81
Power-On Self-Test (POST) Error Message	82
Index of Error Messages	83
Phoenix BIOS Beep Codes	86
Index of Symptom-to-FRU Error Message	90
Intermittent Problems	93
Undetermined Problems	94
Top View	95
Bottom View	96
TravelMate 4070/4080 Exploded Diagram	100

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