[CONFIDENTIAL] 1 Toshiba Personal Computer Satellite A50S/TECRA A3X Series Maintenance Manual TOSHIBA CORPORATION File Number

x [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

2.13 Sound Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-45 2.1

2 Troubleshooting Procedures 2.13 Sound Troubleshooting 2-46 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-534)

2.14 Wireless LAN Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2

2 Troubleshooting Procedures 2.14 Wireless LAN Troubleshooting 2-48 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96

[CONFIDENTIAL] Chapter 3 Tests and Diagnostics

3 Tests and Diagnostics 3-ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3

3 Tests and Diagnostics Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-iii Chapter 3 Contents 3.1 The Diagnostic

3 Tests and Diagnostics 3-iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.21.2 Operati

3 Tests and Diagnostics Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-v Tables Table 3-1 Subtest names ...

3 Tests and Diagnostics 3.1 The Diagnostic Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-1 3 3.1 The Dia

[CONFIDENTIAL] Chapter 1 Hardware Overview

3.1 The Diagnostic Test 3 Tests and Diagnostics 3-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) ? SYST

3 Tests and Diagnostics 3.1 The Diagnostic Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-3 ? A PC for wrap

3.1 The Diagnostic Test 3 Tests and Diagnostics 3-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.1.2

3 Tests and Diagnostics 3.2 Executing the Diagnostic Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-5 3.2 E

3.2 Executing the Diagnostic Test 3 Tests and Diagnostics 3-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-53

3 Tests and Diagnostics 3.2 Executing the Diagnostic Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-7 Select

3.2 Executing the Diagnostic Test 3 Tests and Diagnostics 3-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-53

3 Tests and Diagnostics 3.2 Executing the Diagnostic Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-9 3.2.3

3.3 Setting of the hardware configuration 3 Tests and Diagnostics 3-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manua

3 Tests and Diagnostics 3.3 Setting of the hardware configuration Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-

1 Hardware Overview 1-ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1 Hardware Overview

3.3 Setting of the hardware configuration 3 Tests and Diagnostics 3-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manua

3 Tests and Diagnostics 3.4 Heatrun Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-13 3.4 Heatrun Test To e

3.5 Subtest Names 3 Tests and Diagnostics 3-14 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.5 Subtest

3 Tests and Diagnostics 3.5 Subtest Names Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-15 Table 3-1 Subtest nam

3.6 System Test 3 Tests and Diagnostics 3-16 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.6 System Te

3 Tests and Diagnostics 3.6 System Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-17 If the CPU supports Ger

3.7 Memory Test 3 Tests and Diagnostics 3-18 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.7 Memor

3 Tests and Diagnostics 3.8 Keyboard Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-19 3.8 Keyboard Tes

3.9 Display Test 3 Tests and Diagnostics 3-20 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.9 Dis

3 Tests and Diagnostics 3.9 Display Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-21 Subtest 04 Gradat

1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-iii Chapter 1 Contents 1.1 Features ...

3.9 Display Test 3 Tests and Diagnostics 3-22 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Subtest 0

3 Tests and Diagnostics 3.10 Floppy Disk Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-23 3.10 Floppy

3.10 Floppy Disk Test 3 Tests and Diagnostics 3-24 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Sele

3 Tests and Diagnostics 3.11 Printer Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-25 3.11 Printer Tes

3.11 Printer Test 3 Tests and Diagnostics 3-26 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Subtest

3 Tests and Diagnostics 3.12 Async Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-27 3.12 Async Test To

3.13 Hard Disk Test 3 Tests and Diagnostics 3-28 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.13

3 Tests and Diagnostics 3.13 Hard Disk Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-29 4. The Hard Di

3.13 Hard Disk Test 3 Tests and Diagnostics 3-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Subtes

3 Tests and Diagnostics 3.14 Real Timer Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-29 3 3.14 Real

1 Hardware Overview 1-iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figures Figure 1-1 Fron

3.14 Real Timer Test 3 Tests and Diagnostics 3-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Then th

3 Tests and Diagnostics 3.14 Real Timer Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-31 Subtest 03 Rea

3.15 NDP Test 3 Tests and Diagnostics 3-32 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.15 N

3 Tests and Diagnostics 3.16 Expansion Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-33 3.16 Expans

3.16 Expansion Test 3 Tests and Diagnostics 3-34 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) S

3 Tests and Diagnostics 3.17 CD-ROM/DVD-ROM Test Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-35 3.17 C

3.18 Error Code and Error Status Names 3 Tests and Diagnostics 3-36 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance

3 Tests and Diagnostics 3.18 Error Code and Error Status Names Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.18 Error Code and Error Status Names 3 Tests and Diagnostics 3-38 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance

3 Tests and Diagnostics 3.19 Hard Disk Test Detail Status Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-3

1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-v Table 1-18 Time required for charges of

3.19 Hard Disk Test Detail Status 3 Tests and Diagnostics 3-40 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manu

3 Tests and Diagnostics 3.20 ONLY ONE TEST Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-41 3.20 ONLY ON

3.20 ONLY ONE TEST 3 Tests and Diagnostics 3-42 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Su

3 Tests and Diagnostics 3.20 ONLY ONE TEST Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-43 Subtest 02 T

3.20 ONLY ONE TEST 3 Tests and Diagnostics 3-44 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Su

3 Tests and Diagnostics 3.20 ONLY ONE TEST Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-45 NOTE: When

3.20 ONLY ONE TEST 3 Tests and Diagnostics 3-46 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Su

3 Tests and Diagnostics 3.21 Head Cleaning Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-47 3.21 Head Cl

3.22 Log Utilities 3 Tests and Diagnostics 3-48 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.22

3 Tests and Diagnostics 3.22 Log Utilities Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-49 3.22.2 Operations

1 Hardware Overview 1-vi [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

3.23 Running Test 3 Tests and Diagnostics 3-50 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.23 Ru

3 Tests and Diagnostics 3.24 Floppy Disk Drive Utilities Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-51

3.24 Floppy Disk Drive Utilities 3 Tests and Diagnostics 3-52 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

3 Tests and Diagnostics 3.24 Floppy Disk Drive Utilities Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-53

3.24 Floppy Disk Drive Utilities 3 Tests and Diagnostics 3-54 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

3 Tests and Diagnostics 3.24 Floppy Disk Drive Utilities Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-55

3 Tests and Diagnostics 3.25 System Configuration Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-55 3 3.25 S

3.25 System Configuration 3 Tests and Diagnostics 3-56 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.

3 Tests and Diagnostics 3.26 Wireless LAN Test Program (Intel-made b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.26 Wireless LAN Test Program (Intel-made b/g) 3 Tests and Diagnostics 3-58 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainten

1.1 Features 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-1 1 Features 1.1 Features

3 Tests and Diagnostics 3.26 Wireless LAN Test Program (Intel-made b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.26 Wireless LAN Test Program (Intel-made b/g) 3 Tests and Diagnostics 3-60 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainten

3 Tests and Diagnostics 3.26 Wireless LAN Test Program (Intel-made b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.27 Wireless LAN Test Program (Intel-made a/b/g) 3 Tests and Diagnostics 3-62 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maint

3 Tests and Diagnostics 3.27 Wireless LAN Test Program (Intel-made a/b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.27 Wireless LAN Test Program (Intel-made a/b/g) 3 Tests and Diagnostics 3-64 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maint

3 Tests and Diagnostics 3.27 Wireless LAN Test Program (Intel-made a/b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.27 Wireless LAN Test Program (Intel-made a/b/g) 3 Tests and Diagnostics 3-66 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maint

3 Tests and Diagnostics 3.27 Wireless LAN Test Program (Intel-made a/b/g) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.28 Wireless LAN Test Program (Askey-made) 3 Tests and Diagnostics 3-68 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance

1 Hardware Overview 1.1 Features 1-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) ? VRAM The comput

3 Tests and Diagnostics 3.28 Wireless LAN Test Program (Askey-made) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.28 Wireless LAN Test Program (Askey-made) 3 Tests and Diagnostics 3-70 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance

3 Tests and Diagnostics 3.28 Wireless LAN Test Program (Askey-made) Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-72 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-74 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-76 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-78 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

1.1 Features 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-3 ? LAN/MODEM Connectors fo

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-80 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-82 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program 3 Tests and Diagnostics 3-84 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintena

3 Tests and Diagnostics 3.29 LAN/Modem/Bluetooth/IEEE1394 Test Program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

3.30 Sound Test program 3 Tests and Diagnostics 3-84 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3 T

3 Tests and Diagnostics 3.30 Sound Test program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-85 To retur

3.30 Sound Test program 3 Tests and Diagnostics 3-86 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Subtes

ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Copyright © 2005

1 Hardware Overview 1.1 Features 1-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figure 1-1 shows t

3 Tests and Diagnostics 3.30 Sound Test program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-87 3.30.3 C

3.30 Sound Test program 3 Tests and Diagnostics 3-88 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Pres

3 Tests and Diagnostics 3.30 Sound Test program Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-89 (2) Audi

3.31 SETUP 3 Tests and Diagnostics 3-90 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) CAUTION: Sound (Le

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-91 10. I/O Ports (a) Se

3.31 SETUP 3 Tests and Diagnostics 3-92 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 11. Drives I/O (a)

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-93 3.31.2 Accessing the

3.31 SETUP 3 Tests and Diagnostics 3-94 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) NOTE: *1. HDD PASS

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-95 Moving Within the SET

3.31 SETUP 3 Tests and Diagnostics 3-96 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) SETUP Options The S

1.1 Features 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-5 Figure 1-2 shows the syste

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-97 NOTE: Display of the

3.31 SETUP 3 Tests and Diagnostics 3-98 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Battery optimized

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-99 5. HDD Password This

3.31 SETUP 3 Tests and Diagnostics 3-100 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) CD-ROM? LAN? HDD?

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-101 NOTE: When starting

3.31 SETUP 3 Tests and Diagnostics 3-102 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Always High Disab

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-103 NOTE: 1. Do not re

3.31 SETUP 3 Tests and Diagnostics 3-104 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 10. I/O ports This

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-105 When you select one

3.31 SETUP 3 Tests and Diagnostics 3-106 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 14. Peripheral Use

1 Hardware Overview 1.2 System Block Diagram 1-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1.2 S

3 Tests and Diagnostics 3.31 SETUP Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 3-107 Std. Bi-Direct. Set

[CONFIDENTIAL] Chapter 4 Replacement Procedures

4 Replacement Procedures 4-ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4

4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-iii Chapter 4 Contents 4.1 Over

4 Replacement Procedures 4-iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4.21 Latch Assembly.

4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-v Figures Figure 4-1 Removing Ba

4 Replacement Procedures 4-vi [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figure 4-30 Removing

4.1 Overview 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-1 4 4.1 Overvi

4 Replacement Procedures 4.1 Overview 4-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Safety Prec

4.1 Overview 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-3 Before You Begi

1.2 System Block Diagram 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-7 The PC contain

4 Replacement Procedures 4.1 Overview 4-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Disassembly

4.1 Overview 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-5 Assembly Proced

4 Replacement Procedures 4.1 Overview 4-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Screw Tight

4.1 Overview 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-7 Screw Notation

4 Replacement Procedures 4.2 Battery Pack/PC Card 4-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4.2 Battery Pack/PC Card 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-9 Ins

4 Replacement Procedures 4.2 Battery Pack/PC Card 4-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4.3 Memory Module 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-11 4.3 Memo

4 Replacement Procedures 4.3 Memory Module 4-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4. Op

4.3 Memory Module 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-13 Installin

1 Hardware Overview 1.2 System Block Diagram 1-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) ? Chi

4 Replacement Procedures 4.4 MDC 4-14 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4.4 MDC Removi

4.4 MDC 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-15 Installing the MDC

4 Replacement Procedures 4.5 HDD 4-16 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4.5 HDD Removin

4.5 HDD 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-17 3. Holding the tab

4 Replacement Procedures 4.5 HDD 4-18 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Installing the H

4.6 Wireless LAN card 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-19 4.6

4 Replacement Procedures 4.6 Wireless LAN card 4-20 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.

4.7 Cooling Fin/CPU 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-21 4.7 Co

4 Replacement Procedures 4.7 Cooling Fin/CPU 4-22 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 2.

4.7 Cooling Fin/CPU 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-23 3. Lif

1.2 System Block Diagram 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-9 ? VGA control

4 Replacement Procedures 4.7 Cooling Fin/CPU 4-24 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Inst

4.7 Cooling Fin/CPU 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-25 NOTE: A

4 Replacement Procedures 4.8 Keyboard 4-26 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4.8 Keyboa

4.8 Keyboard 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-27 3. Remove the

4 Replacement Procedures 4.8 Keyboard 4-28 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 6. Remove

4.8 Keyboard 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-29 Installing the

4 Replacement Procedures 4.9 Switch membrane board 4-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.9 Switch membrane board 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-31 I

4 Replacement Procedures 4.10 Optical Drive 4-32 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.10 Optical Drive 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-33 3. Remove

1 Hardware Overview 1.3 3.5-inch USB Floppy Disk Drive 1-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-53

4 Replacement Procedures 4.11 Display Assembly 4-34 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-

4.11 Display Assembly 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-35 3. Turn

4 Replacement Procedures 4.11 Display Assembly 4-36 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-

4.11 Display Assembly 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-37 Installi

4 Replacement Procedures 4.12 Sound Board 4-38 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4.13 Parallel port board / Serial port board / S-Video board 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4 Replacement Procedures 4.13 Parallel port board / Serial port board / S-Video board 4-40 [CONFIDENTIAL] Satellite A

4.13 Parallel port board / Serial port board / S-Video board 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4 Replacement Procedures 4.13 Parallel port board / Serial port board / S-Video board 4-42 [CONFIDENTIAL] Satellite A

4.13 Parallel port board / Serial port board / S-Video board 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534)

1.4 2.5-inch Hard Disk Drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-11 1.4 2.5

4 Replacement Procedures 4.13 Parallel port board / Serial port board / S-Video board 4-44 [CONFIDENTIAL] Satellite A

4.13 Parallel port board / Serial port board / S-Video board 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4 Replacement Procedures 4.14 Fan 4-46 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4.14 Fa

4.15 System Board/DC-IN Jack/RTC Battery 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENT

4 Replacement Procedures 4.15 System Board/DC-IN Jack/RTC Battery 4-48 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maint

4.15 System Board/DC-IN Jack/RTC Battery 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENT

4 Replacement Procedures 4.16 PC card cover 4-50 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.17 Battery Latch 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-51 4.17 Batte

4 Replacement Procedures 4.17 Battery Latch 4-52 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.18 Battery Lock 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-53 4.18 Batter

1 Hardware Overview 1.4 2.5-inch Hard Disk Drive 1-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Tab

4 Replacement Procedures 4.18 Battery Lock 4-54 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

4.19 Touch Pad 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-55 4.19 Touch Pad

4 Replacement Procedures 4.19 Touch Pad 4-56 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) In

4.20 LCD Unit/FL Inverter 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-57 4.20

4 Replacement Procedures 4.20 LCD Unit/FL Inverter 4-58 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

4.20 LCD Unit/FL Inverter 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-59 8.

4 Replacement Procedures 4.20 LCD Unit/FL Inverter 4-60 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

4.21 Latch Assembly 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-61 4.21 Latc

4 Replacement Procedures 4.22 Wireless LAN Antenna/Speaker/Hinge 4-62 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainte

4.22 Wireless LAN Antenna/Speaker/Hinge 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTI

1.5 CD-ROM Drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-13 1.5 CD-ROM Drive The

4 Replacement Procedures 4.22 Wireless LAN Antenna/Speaker/Hinge 4-64 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainte

4.22 Wireless LAN Antenna/Speaker/Hinge 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTI

4 Replacement Procedures 4.22 Wireless LAN Antenna/Speaker/Hinge 4-66 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainte

4.22 Wireless LAN Antenna/Speaker/Hinge 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTI

4 Replacement Procedures 4.22 Wireless LAN Antenna/Speaker/Hinge 4-68 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainte

4.22 Wireless LAN Antenna/Speaker/Hinge 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTI

4 Replacement Procedures 4.22 Wireless LAN Antenna/Speaker/Hinge 4-70 [CONFIDENTIAL] Satellite A50S/TECRA A3X Mainte

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-71 4 4.23 F

4 Replacement Procedures 4.23 Fluorescent Lamp 4-72 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-73 2. Remove

Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] iii Preface This maintenance manual describes how to perform h

1 Hardware Overview 1.5 CD-ROM Drive 1-14 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table 1-5 CD-R

4 Replacement Procedures 4.23 Fluorescent Lamp 4-74 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-75 5. Remove

4 Replacement Procedures 4.23 Fluorescent Lamp 4-76 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-77 7. Remove

4 Replacement Procedures 4.23 Fluorescent Lamp 4-78 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-79 9. Remove

4 Replacement Procedures 4.23 Fluorescent Lamp 4-80 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-81 4.23.2 Repl

4 Replacement Procedures 4.23 Fluorescent Lamp 4-82 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-83 4. Turn th

1.6 DVD-ROM Drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-15 1.6 DVD-ROM Drive T

4 Replacement Procedures 4.23 Fluorescent Lamp 4-84 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-85 6. Turn th

4 Replacement Procedures 4.23 Fluorescent Lamp 4-86 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-87 NOTE: Disc

4 Replacement Procedures 4.23 Fluorescent Lamp 4-88 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-89 Assembling

4 Replacement Procedures 4.23 Fluorescent Lamp 4-90 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-91 3. Install

4 Replacement Procedures 4.23 Fluorescent Lamp 4-92 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-93 NOTE: Make

1 Hardware Overview 1.6 DVD-ROM Drive 1-16 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table 1-7 DVD

4 Replacement Procedures 4.23 Fluorescent Lamp 4-94 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-95 8. Install

4 Replacement Procedures 4.23 Fluorescent Lamp 4-96 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534

4.23 Fluorescent Lamp 4 Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-97 10. Stick t

Replacement Procedures 4.23 Fluorescent Lamp 4-98 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4 4.23.3 Rep

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-99 2. Remove t

Replacement Procedures 4.23 Fluorescent Lamp 4-100 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3. Remove th

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-101 4. Remove

Replacement Procedures 4.23 Fluorescent Lamp 4-102 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Assembling th

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-103 2. Install

1.6 DVD-ROM Drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-17 Table 1-7 DVD-ROM d

Replacement Procedures 4.23 Fluorescent Lamp 4-104 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4. Stick the

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-105 4.23.4 Repl

Replacement Procedures 4.23 Fluorescent Lamp 4-106 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figure 4-93

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-107 6. Remove

Replacement Procedures 4.23 Fluorescent Lamp 4-108 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figure 4-95

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-109 8. Remove

Replacement Procedures 4.23 Fluorescent Lamp 4-110 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Assembling th

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-111 NOTE: Be c

Replacement Procedures 4.23 Fluorescent Lamp 4-112 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 2. Install t

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-113 Figure 4-9

1 Hardware Overview 1.7 DVD-ROM & CD-R/RW Drive 1-18 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Replacement Procedures 4.23 Fluorescent Lamp 4-114 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 4. Stick the

4.23 Fluorescent Lamp Replacement Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-115

[CONFIDENTIAL] Appendices

Appendices App-ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendices Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] App-iii Appendix Contents Appendix A Handling t

Appendices App-iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.18 CN5620 RGB I/F Connector (15-pin) ...

Appendices Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] App-v Appendix D Keyboard Scan/Character Codes...

Appendices App-vi [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Figures Figure B-1 System board layout (fron

Appendices Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] App-vii Table C-9 Debug port connector pin assign

Appendices App-viii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-41 Serial I/F Connector pin assignm

1.7 DVD-ROM & CD-R/RW Drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-19 Table

Appendix. A Handling the LCD Module Appendices Satellite A50 S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] A-1 Appendix. A

Appendices Appendix. A Handling the LCD Module A-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3. If the pane

Appendix. A Handling the LCD Module Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] A-3 5. Gl

Appendices Appendix. A Handling the LCD Module A-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 7. Do not expo

Appendix. A Handling the LCD Module Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] A-5 10. If

Appendices Appendix. A Handling the LCD Module A-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. B Board Layout Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] B-1 Appendix. B

Appendices Appendix. B Board Layout B-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-5

Appendix. B Board Layout Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] B-3 B.2 System Board Back

Appendices Appendix. B Board Layout B-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-5

1 Hardware Overview 1.7 DVD-ROM & CD-R/RW Drive 1-20 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. B Board Layout Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] B-5 B.3 Sound Board (FLGS

Appendices Appendix. B Board Layout B-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-5

Appendix. B Board Layout Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] B-7 B.5 Serial port Board

Appendices Appendix. B Board Layout B-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-5

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-1 Appendix. C Ap

Appendices Appendix. C Pin Assignment C-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-1 Memo

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-3 Table C-1 Memory 0

Appendices Appendix. C Pin Assignment C-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-1 Memo

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-5 C.2 CN1410 Memory

Appendices Appendix. C Pin Assignment C-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-2 Memo

1.8 DVD Super Multi drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-21 1.8 DVD Sup

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-7 Table C-2 Memory 1

Appendices Appendix. C Pin Assignment C-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-2 Memo

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-9 C.4 CN1810 Optical

Appendices Appendix. C Pin Assignment C-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.5 IS2110 PC

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-11 Table C-5 PC Card

Appendices Appendix. C Pin Assignment C-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.6 CN2300 Doc

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-13 Table C-6 Docking

Appendices Appendix. C Pin Assignment C-14 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table C-6 Docki

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-15 Table C-6 Docking

Appendices Appendix. C Pin Assignment C-16 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.7 CN2200 Min

1 Hardware Overview 1.8 DVD Super Multi drive 1-22 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-17 Table C-7 Mini PCI

Appendices Appendix. C Pin Assignment C-18 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.8 CN3010 MDC

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-19 C.10 CN3200 Keybo

Appendices Appendix. C Pin Assignment C-20 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.12 CN3280 Sw

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-21 C.14 CN4100 Netwo

Appendices Appendix. C Pin Assignment C-22 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.17 CN5000 LC

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-23 C.18 CN5620 RGB I/

Appendices Appendix. C Pin Assignment C-24 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) C.21 CN6002 Sp

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-25 C.24 CN8020 1st Ba

Appendices Appendix. C Pin Assignment C-26 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Sound Board (FLG

1.8 DVD Super Multi drive 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-23 Table 1-11

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-27 Switch Board (FLKSW

Appendices Appendix. C Pin Assignment C-28 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Parallel Board (

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-29 C.32 CN4613 Paral

Appendices Appendix. C Pin Assignment C-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) S-Video Board (F

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-31 C.39 PJ5641 S-Vide

Appendices Appendix. C Pin Assignment C-32 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Serial Board (FL

Appendix. C Pin Assignment Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] C-33 C.41 CN3440 Serial

Appendices Appendix. C Pin Assignment C-34 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. D Keyboard Scan/Character Codes Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] D-1 Appendix.

Appendices Appendix. D Keyboard Scan/Character Codes D-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) The manual is divided into the

1 Hardware Overview 1.9 Keyboard 1-24 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1.9 Keyboard An 85

Appendix. D Keyboard Scan/Character Codes Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] D-3 Table

Appendices Appendix. D Keyboard Scan/Character Codes D-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. D Keyboard Scan/Character Codes Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] D-5 Table

Appendices Appendix. D Keyboard Scan/Character Codes D-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. D Keyboard Scan/Character Codes Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] D-7 Table

Appendices Appendix. D Keyboard Scan/Character Codes D-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. E Key Layout Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] E-1 Appendix. E Key Layout A

Appendices Appendix. E Key Layout E-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. F Wiring Diagrams Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] F-1 Appendix. F Ap

Appendices Appendix. F Wiring Diagrams F-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

1.10 TFT Color Display 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-25 1.10 TFT Color

Appendix. G BIOS/KBC/EC Update Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] G-1 Appendix. G BIO

Appendices Appendix. G BIOS/KBC/EC Update G-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

Appendix. H Reliability Appendices Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] H-1 Appendix. H Reliab

Appendices Appendix. H Reliability H-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

1 Hardware Overview 1.10 TFT Color Display 1-26 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table 1-

1.10 TFT Color Display 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-27 1.10.2 FL Inver

1 Hardware Overview 1.11 Power Supply 1-28 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1.11 Power Su

1.11 Power Supply 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-29 Table 1-14 Power su

1 Hardware Overview 1.12 Batteries 1-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1.12 Batteries T

1.12 Batteries 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-31 1.12.2 Battery Charging

1 Hardware Overview 1.12 Batteries 1-32 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 1.12.3 RTC Batter

1.13 AC Adapter 1 Hardware Overview Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 1-33 1.13 AC Adapter The A

Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] v Conventions This manual uses the following formats to descri

1 Hardware Overview 1.13 AC Adapter 1-34 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534)

[CONFIDENTIAL] Chapter 2 Troubleshooting Procedures

2 Troubleshooting Procedures 2-ii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 2

2 Troubleshooting Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-iii Chapter 2 Contents 2.1

2 Troubleshooting Procedures 2-iv [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 2.8 Display Troubleshooti

2 Troubleshooting Procedures Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-v Figures Figure 2-1 Troubl

2.1 Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-1 2 2.1

2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart 2-2 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-

2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-

2 Troubleshooting Procedures 2.2 Troubleshooting Flowchart 2-4 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-

vi [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) Table of Contents Chapter 1

2.2 Troubleshooting Flowchart 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-6 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-8 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-10 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-12 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.3 Power Supply Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.3 Power Supply Troubleshooting 2-14 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] vii 2.13 Sound Troubleshooting...

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-16 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-18 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-20 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-22 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-24 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

viii [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (960-534) 3.29 LAN/Modem/Bluetooth/I

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-26 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.4 System Board Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]

2 Troubleshooting Procedures 2.4 System Board Troubleshooting 2-28 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual

2.5 3.5” FDD Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-29 2

2 Troubleshooting Procedures 2.5 3.5” FDD Troubleshooting 2-30 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-53

2.5 3.5” FDD Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-31 P

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting 2-32 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-53

2.6 2.5” HDD Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-33 P

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting 2-34 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-53

Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] ix Appendix C Pin Assignment ...

2.6 2.5” HDD Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-35 P

2 Troubleshooting Procedures 2.6 2.5” HDD Troubleshooting 2-36 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-53

2.7 Keyboard Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-37

2 Troubleshooting Procedures 2.8 Display Troubleshooting 2-38 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-534

2.8 Display Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-39 Pr

2 Troubleshooting Procedures 2.8 Display Troubleshooting 2-40 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-534

2.9 Touch Pad Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-41

2 Troubleshooting Procedures 2.10 Optical Drive Troubleshooting 2-42 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (9

2.11 Modem Troubleshooting 2 Troubleshooting Procedures Satellite A50S /TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 2-43 2.1

2 Troubleshooting Procedures 2.12 LAN Troubleshooting 2-44 [CONFIDENTIAL] Satellite A50S/TECRA A3X Maintenance Manual (96 0-534) 2