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Acer TravelMate 650 TravelMate 650 Service Guide - Page 63

Disassembling the logic lower assembly, To remove the main board from the lower case assembly

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Disassembling the logic lower assembly 1. In order to take out the main board from the upper case, first remove the four screws that fasten the top cover shielding. 2. Remove the three screws holding the 4-in-1 card reader, then remove it. 3. Unscrew the four screws that secure the thermal module. 4. Disconnect the fan connector then remove the thermal module. 5. Remove one screw that secures the main board as picture shows. 6. Remove another screw that fastens the main board. 7. Take out the bluetooth antenna. 8. Disconnect the speaker set cable. 9. To remove the main board from the lower case assembly, first press the PCMCIA card button. 10. Then take the main board off the lower case assembly. 11. Unscrew the two screws that fasten the HDD bracket. 12. Remove one screw holding the top cover shielding. Chapter 3 55

Section	Page
TravelMate 650	1
Revision History	2
Copyright	3
Disclaimer	3
Convention	4
Preface	5
Table of Content	7
Ch.1 System Specifications	9
Features	9
System Block Diagram	11
Board Layout	12
Top View	12
Bottom View	13
Outlook View	14
Front Open View	14
Front Panel	15
Left Panel	16
Right Panel	17
Rear Panel	18
Bottom Panel	19
Indicators	20
Lock Keys	21
Embedded Numeric Keypad	22
Windows Keys	23
Hot Keys	24
The Euro Symbol	26
Launch Keys	27
Touchpad	28
Touchpad Basics	28
Hardware Specifications and Configurations	30
Ch.2 System Utilities	39
BIOS Setup Utility	39
Navigating the BIOS Utility	40
Info.	41
Main	42
Advanced	44
Security	45
Boot	49
Exit	50
BIOS Flash Utility	51
System Diagnostic Diskette	51
Ch.3 Machine Disassembly and Replacement	53
Disassembly Procedure Flowchart	55
Removing the Optical Module/HDD Module/Wireless Lan Card and LCD module	59
Removing the Optical Module	59
Removing the HDD Module	59
Removing the Wireless LAN Card	59
Removing the LCD Module	60
Disassembling the Main Unit	61
Remove the function key board and the keyboard	61
Separate the main unit into the logic upper and the logic lower assembly	61
Disassembling the logic upper assembly	62
Disassembling the logic lower assembly	63
Disassembling the LCD Module	65
Disassembling the External Modules	67
Disassembling the HDD Module	67
Disassembling the Optical Drive Module	67
Ch.4 Troubleshooting	69
System Check Procedures	70
External Diskette Drive Check	70
External CD-ROM Drive Check	70
Keyboard or Auxiliary Input Device Check	70
Memory check	71
Power System Check	71
Touchpad check	72
Power-On Self-Test (POST) Error Message	73
Index of Error Messages	74
Index of Symptom-to-FRU Error Message	76
Intermittent Problems	80
Undetermined Problems	81
Ch.5 FRU (Field Replaceable Unit) List	83
App.A Model Definition and Configuration	94
TravelMate 650 Series	94
Main Features	95
App.B Test Compatible Components	97
Microsoft® Windows® XP Pro Environment Test	98
Microsoft® Windows® 2000 Environment Test	102
App.C Online Support Information	107

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