Toshiba Satellite U400 - Table of Contents

6 Satellite U400/Satellite Pro U400/PORTEGE M800  Maintenance Manual
Table of Contents
Chapter 1 Hardware Overview
1.1 Features..........................................................................................................................1
1.2 System Block Diagram..................................................................................................6
1.3 2.5-inch Hard Disk Drive.............................................................................................11
1.4 Optical Drive................................................................................................................15
1.4.1DVD-ROM & CD-R/RW Drive....................................................................15
1.4.2DVD Super Multi Drive ................................................................................17
1.5 Keyboard......................................................................................................................19
1.6 TFT Color Display.......................................................................................................20
1.6.1LCD Module..................................................................................................20
1.6.2FL Inverter Board ..........................................................................................23
1.6.3CCFL Invertor Board………………………………………………… .. 24
1.7 Power Supply...............................................................................................................25
1.8 Batteries .......................................................................................................................27
1.8.1Main Battery ..................................................................................................27
1.8.2Battery Charging Control...............................................................................28
1.8.3RTC battery....................................................................................................29
1.9 AC Adapter ..................................................................................................................30
Chapter 2 Troubleshooting Procedures
2.1 Troubleshooting.............................................................................................................1
2.2 Troubleshooting Flowchart............................................................................................3
2.3 Power Supply Troubleshooting .....................................................................................7
Procedure 1 Power Status Check ...................................................................7
Procedure 2 Error Code Check ......................................................................9
Procedure 3 Connection Check....................................................................10
Procedure 4 Charging Check .......................................................................11
Procedure 5 Replacement Check ................................................................ 12
2.4 System Board Troubleshooting .................................................................................. 13
Procedure 1 Message Check ....................................................................... 14