4 Replacement Procedures
NB250/NB255 Maintenance Manual
4-ii
Chapter 4
Contents
4.1
General ................................................................................................................... 4-1
Safety Precautions .......................................................................................... 4-2
Before You Begin........................................................................................... 4-4
Disassembly Procedures................................................................................. 4-5
Assembly Procedures ..................................................................................... 4-5
Tools and Equipment ..................................................................................... 4-6
Screw Tightening Torque............................................................................... 4-6
Colors of Screw Shanks ................................................................................. 4-7
Symbols of Screws on the Laptop Body ........................................................ 4-7
Symbol examples ........................................................................................... 4-7
4.2
Battery .................................................................................................................... 4-8
Removing the Battery Pack............................................................................ 4-8
Installing the Battery Pack ............................................................................. 4-9
4.3
HDD ..................................................................................................................... 4-10
Removing the HDD...................................................................................... 4-10
Installing the HDD ....................................................................................... 4-12
4.4
Memory ................................................................................................................ 4-13
Removing the Optional Memory.................................................................. 4-13
Installing the Optional Memory ................................................................... 4-14
4.5
WLAN Card ......................................................................................................... 4-15
Removing the WLAN Card.......................................................................... 4-15
Installing the WLAN Card ........................................................................... 4-16
4.6
Hinge Cover and Keyboard.................................................................................. 4-17
Removing the Hinge Cover.......................................................................... 4-18
Removing the Keyboard............................................................................... 4-19
Installing the Hinge Cover and Keyboard.................................................... 4-20
4.7
Power Board ......................................................................................................... 4-21
Removing the Power Board ......................................................................... 4-21
Summary of Contents for mini NB250 series
Page 1: ...Toshiba Personal Computer NB250 NB255 Maintenance Manual TOSHIBA CORPORATION ...
Page 12: ...Chapter 1 Hardware Overview ...
Page 15: ......
Page 28: ...Chapter 2 Troubleshooting Procedures 2 ...
Page 29: ......
Page 64: ...352 Troubleshooting Procedures NB200 Series Maintenance Manual 35 ...
Page 75: ...3 Tests and Diagnostics 1 Chapter 3 Tests and Diagnostics ...
Page 87: ...3 Tests and Diagnostics 13 ...
Page 90: ...3 Tests and Diagnostics Japan keyboard UK keyboard 16 ...
Page 94: ...3 Tests and Diagnostics 2 If the Magnetic switch test pass it will show below display 20 ...
Page 114: ...3 Tests and Diagnostics If W R T P type passes the screen would display as below 40 ...
Page 118: ...3 Tests and Diagnostics 44 ...
Page 120: ...3 Tests and Diagnostics 46 ...
Page 121: ...Chapter 4 Replacement Procedures ...
Page 126: ......
Page 219: ...Figure JP keyboard NB250 NB255 Series Maintenance Manual ...