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Acer TravelMate 250 TravelMate 240/250 Service Guide - Page 79

Removing the Main Board, Removing the DC Board

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Removing the Main Board 1. See "Removing the Battery" on page 52. 2. See "Removing the Middle Cover" on page 56. 3. See "Removing the Keyboard" on page 63. 4. See "Removing the Floppy Disk Drive Module" on page 67. 5. See "Removing the VGA Heatsink Plate" on page 68. 6. See "Removing the CPU Heatsink Plate" on page 68. 7. See "Removing the ODD Module(1)" on page 69. 8. See "Removing the HDD Bracket" on page 69. 9. Disconnect the launch board cable. Tear off the tape that fastens the speaker set cable. Then disconnect the speaker set cable. . 10. Remove the two screws holding the main board as the picture shows. Remove another two screws that fasten the main board. Then detach the main board from the lower case carefully. Removing the DC Board 1. See "Removing the Battery" on page 52. 2. See "Removing the Middle Cover" on page 56. 3. See "Removing the Keyboard" on page 63. 4. See "Removing the Floppy Disk Drive Module" on page 67. 5. See "Removing the VGA Heatsink Plate" on page 68. 6. See "Removing the CPU Heatsink Plate" on page 68. Chapter 3 70

Section	Page
TravelMate 240/250	1
Revision History	2
Copyright	3
Conventions	4
Preface	5
Table of Contents	7
Ch.1 System Introduction	10
Features	10
System Block Diagram	12
Board Layout	13
Top View	13
Bottom View	14
Panel	15
Front Panel	15
Left Panel	16
Right Panel	18
Rear Panel	19
Bottom Panel	20
Indicators	21
Understanding the icons	22
Keyboard	23
Special keys	23
Hot Keys	25
Hardware Specifications and Configurations	28
Ch.2 System Utilities	43
BIOS Setup Utility	43
Navigating the BIOS Utility	44
Information	45
Main	46
Advanced	48
Security	49
Boot	53
Exit	54
BIOS Flash Utility	55
System Diagnostic Diskette	55
Ch.3 Machine Disassembly and Replacement	57
General Information	58
Before You Begin	58
Disassembly Procedure Flowchart	59
Removing the Battery	61
Removing the Memory Module	62
Removing the Modem Board	63
Removing the Hard Disk Drive Module	64
Disassembling the Hard Disk Drive Module	64
Removing the LCD Module	65
Removing the Middle Cover	65
Removing the Launch Board	65
Removing the LCD Module	66
Disassembling the LCD Module	68
Removing the LCD Bezel	68
Removing the Inverter Board (15” LCD)	68
Removing the 15” TFT LCD	69
Removing the LCD Brackets	69
Removing the LCD Coaxial Cable	70
Removing the LCD Hinges	70
Disassembling the Main Unit	72
Removing the Keyboard	72
Removing the RTC Battery	72
Removing the MimiPCI Card Plate	72
Removing the Thermal Module	73
Removing the Processor	73
Installing the Processor	74
Removing the Upper Case Assemly	74
Removing the Touchpad Board	75
Removing the Touchpad Cable	75
Removing the Floppy Disk Drive Module	76
Dissembling the Floppy Disk Drive Module	76
Removing the VGA Heatsink Plate	77
Removing the CPU Heatsink Plate	77
Removing the ODD Module(1)	78
Removing the ODD Module(2)	78
Removing the HDD Bracket	78
Removing the Main Board	79
Removing the DC Board	79
Removing the I/O Port Bracket	80
Removing the PCMCIA Slot	80
Removing the Speaker Set	81
System Upgrade Procedure	82
Base Unit to Wireless Unit	82
Assembling the Main Unit	83
Installing the Speaker Set	83
Installing the DC Board	83
Installing the PCMCIA Slot	83
Installing the Main Board	83
Installing the HDD Bracket	84
Installing the ODD Module	84
Installing the CPU Heatsink Plate	85
Installing the VGA Heatsink Plate	85
Installing the Floppy Disk Drive Module	85
Installing the Touchpad Cable	86
Installing the Touchpad Board	86
Installing the Upper Case Assemly	87
Installing the Processor	88
Installing the Thermal Module	88
Installing the MimiPCI Card Plate	89
Installing the RTC Battery	90
Installing the Keyboard	90
Assembling the LCD Module	92
Installing the LCD Hinges	92
Installing the LCD Coaxial Cable	92
Installing the LCD Brackets	92
Installing the 15” TFT LCD	93
Installing the Inverter Board (15” LCD)	93
Installing the LCD Bezel	94
Installing the LCD Module	96
Installing the LCD Module	96
Installing the Launch Board	96
Installing the Middle Cover	97
Installing the Hard Disk Drive Module	99
Removing the Modem Board	100
Installing the Memory Module	101
Installing the Battery	102
Ch.4 Troubleshooting	103
System Check Procedures	104
External Diskette Drive Check	104
External CD-ROM Drive Check	104
Keyboard or Auxiliary Input Device Check	104
Memory check	105
Power System Check	105
Touchpad Check	107
Power-On Self-Test (POST) Error Message	108
Index of Error Messages	109
Index of Symptom-to-FRU Error Message	112
Intermittent Problems	115
Undetermined Problems	116
Ch.5 Jumper and Connector Locations	117
Top View	117
Bottom View	119
Ch.6 FRU (Field Replaceable Unit) List	121
TravelMate 240/250 Exploded Diagram	122
App.A Model Definition and Configuration	135
Model Name Definition	135
App.B Test Compatible Components	137
Microsoft Windows XP Environment Test	138
Microsoft Windows 2000 Environment Test	142
Microsoft Windows 98 Environment Test	146
App.C Online Support Information	151

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