Toshiba T6400 Maintenance Manual page 121

Contents
4.1 General .......................................................................................................................................................... 4-5
4.1.1 Before You Begin ............................................................................................................................ 4-5
4.1.2 Disassembly Procedures .................................................................................................................. 4-6
4.1.3 Installation (Reassembly) Procedures ............................................................................................. 4-6
4.1.4 Tools and Equipment ....................................................................................................................... 4-7
4.2 Keyboard ....................................................................................................................................................... 4-8
4.2.1 Removing the Keyboard .................................................................................................................. 4-8
4.2.2 Installing the Keyboard Assembly ................................................................................................ 4-11
4.3 Central Processor Unit and Oscillator ......................................................................................................... 4-12
4.3.1 Removing the Central Processor Unit............................................................................................ 4-12
4.3.2 Removing the Oscillator ................................................................................................................ 4-13
4.3.3 Installing the Central Processing Unit and Oscillator ................................................................... 4-13
4.4 Top Cover .................................................................................................................................................... 4-15
4.4.1 Removing the Top Cover ............................................................................................................... 4-15
4.4.2 Installing the Top Cover ................................................................................................................ 4-18
4.5 System Board ............................................................................................................................................... 4-20
4.5.1 Removing the System Board .......................................................................................................... 4-20
4.5.2 Installing the System Board ........................................................................................................... 4-21
4.6 3.5" Floppy Disk Drive ................................................................................................................................ 4-22
4.6.1 Removing the 3.5" Floppy Disk Drive ........................................................................................... 4-22
4.6.2 Installing the 3.5" Floppy Disk Drive ............................................................................................ 4-23
4.7 3.5" Hard Disk Drive ................................................................................................................................... 4-24
4.7.1 Removing the 3.5" Hard Disk Drive .............................................................................................. 4-24
4.7.2 Installing the 3.5" Hard Disk Drive ............................................................................................... 4-25
4.8 Speaker ....................................................................................................................................................... 4-26
4.8.1 Removing the Speaker ................................................................................................................... 4-26
4.8.2 Installing the Speaker .................................................................................................................... 4-26
4.9 DC Fans ..............................................................................................................................................................
4-27
4.9.1 Removing the DC Fans .................................................................................................................. 4-27
4.9.2 Installing the DC Fans ................................................................................................................... 4-27
4.10 Power Supply Unit ....................................................................................................................................... 4-28
4.10.1 Removing the Power Supply Unit .................................................................................................. 4-28
4.10.2 Installing the Power Supply Unit ................................................................................................... 4-28
4.11 LED Board and Display Shut-Off Switch .................................................................................................... 4-29
4.11.1 Removing the LED Board and Display Shut-Off Switch ............................................................... 4-29
4.11.2 Installing the LED Board and Display Shut-Off Switch ................................................................ 4-30
4.12 Display Mask ............................................................................................................................................... 4-31
4.12.1 Removing the Display Mask .......................................................................................................... 4-31
4.12.2 Installing the Display Mask ........................................................................................................... 4-32
4.13 Gas Plasma Display ..................................................................................................................................... 4-33
4.13.1 Removing the Gas Plasma Display ................................................................................................ 4-33
4.13.2 Installing the Gas Plasma Display ................................................................................................. 4-35
4.14 Sharp Color LCD ......................................................................................................................................... 4-36
4.14.1 Disassembling the Sharp Color LCD ............................................................................................. 4-36
4.14.2 Installing the Sharp Color LCD ..................................................................................................... 4-38
4.15 DTI Color LCD ............................................................................................................................................ 4-39
4.15.1 Disassembling the DTI Color LCD ................................................................................................ 4-39
4.15.2 Installing the DTI Color LCD ........................................................................................................ 4-40
4.16 Display Cable .............................................................................................................................................. 4-41
4.16.1 Removing the Display Cable ......................................................................................................... 4-41
4.16.2 Installing the Display Cable .......................................................................................................... 4-41
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