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Toshiba Tecra M1 Maintenance Manual - Page 117

Wireless LAN Troubleshooting, Troubleshooting Procedures, Replacement Procedures, Replacement Procedures

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2.14 Wireless LAN Troubleshooting 2 Troubleshooting Procedures Procedure 4 Replacement Check The wireless LAN board, and the system board are connected to the circuits. Any of these components may be damaged. Refer to Chapter 4, Replacement Procedures, for instruc tions on how to disassemble the computer and then perform the following checks: Check 1 Check 2 The wireless LAN board may be defective or damaged. Replace the board with a new one following the steps in Chapter 4, Replacement Procedures. If the problem still exists, perform Check2. The system board may be defective or damaged. Replace the board with a new one following the instructions in Chapter 4, Replacement Procedures and test the display again. TECRA M1 Maintenance Manual (960 -436) 2-57

Section	Page
Table of Contents	7
Chapter 1 Hardware Overview	14
1.1 Features	18
1.2 System Unit Block Diagram	26
1.3 3.5-inch Floppy Disk Drive (USB External)	35
1.4 2.5-inch Hard Disk Drive	36
1.5 CD-ROM Drive	38
1.6 DVD-ROM Drive	39
1.7 CD-RW/DVD-ROM Drive	41
1.8 DVD Multi Drive	43
1.9 Keyboard	45
1.10 TFT Color Display	46
1.11 Power Supply	48
1.12 Batteries	51
Chapter 2 Troubleshooting Procedures	54
2.1 Troubleshooting	61
2.2 Troubleshooting Flowchart	62
2.3 Power Supply Troubleshooting	66
2.4 System Board Troubleshooting	76
2.5 FDD Troubleshooting	90
2.6 HDD Troubleshooting	93
2.7 Keyboard and Touch pad Troubleshooting	98
2.8 Display Troubleshooting	101
2.9 CD-ROM Drive Troubleshooting	103
2.10 DVD-ROM, CD-RW/DVD-ROM and DVD Multi Drive Troubleshooting	105
2.11 Modem Troubleshooting	107
2.12 LAN Troubleshooting	109
2.13 Bluetooth Troubleshooting	110
2.14 Wireless LAN Troubleshooting	114
2.15 Sound Troubleshooting	118
2.16 SD Card Slot Troubleshooting	121
Chapter 3 Tests and Diagnostics	123
3.1 The Diagnostic Test	127
3.2 Executing the Diagnostic Test	129
3.3 Subtest Names	133
3.4 System Test	136
3.5 Memory Test	140
3.6 Keyboard Test	142
3.7 Display Test	146
3.8 Floppy Disk Test	150
3.9 Printer Test	152
3.10 Async Test	154
3.11 Hard Disk Test	156
3.12 Real Timer Test	159
3.13 NDP Test	161
3.14 Expansion Test	162
3.15 CD-ROM/DVD-ROM Test	164
3.16 Wireless LAN Test (Agere)	165
3.17 Wireless LAN Test (Atheros)	170
3.18 Wireless LAN Test (Calexico)	173
3.19 Sound/Modem Test	174
3.20 IEEE1394 Test Program	178
3.21 Bluetooth Test	180
3.22 Error Code and Error Status Names	189
3.23 Hard Disk Test Detail Status	192
3.24 Head Cleaning	194
3.25 Log Utilities	195
3.26 Running Test	197
3.27 Floppy Disk Drive Utilities	199
3.28 System Configuration	204
3.29 SETUP	206
Chapter 4 Replacement Procedures	225
4.1 General	231
4.2 Battery Pack	239
4.3 Optional PC Card	242
4.4 Optional SD Card	244
4.5 HDD	246
4.6 Slim Select Bay Module	251
4.7 Modem Daughter Card	255
4.8 CPU	258
4.9 Keyboard	264
4.10 Memory Module	268
4.11 Sensor/Switch Board	270
4.12 Touch Pad	272
4.13 Wireless LAN Card	276
4.14 Bluetooth Module	279
4.15 Display Assembly	281
4.16 LED Board	286
4.17 Sound Board	288
4.18 System Board/RTC Battery/DC-IN Jack	291
4.19 USB Board	296
4.20 Fan	298
4.21 Display Mask	300
4.22 FL Inverter	303
4.23 LCD Module	305
4.24 Wireless LAN Antenna/Bluetooth Antenna/Display Cover/Speaker	310
4.25 Fluorescent Lamp	322
4.25.1 Replacing the 14.1-inch XGA TOSHIBA Fluorescent Lamp	323
4.25.2 Replacing the 14.1-inch SXGA+ Sharp Fluorescent Lamp	337
Appendices	349
Appendix A Handling the LCD Module	357
Appendix B Board Layout	363
Appendix C Pin Assignments	372
Appendix D Keyboard Scan/Character Codes	409
Appendix E Key Layout	417
Appendix F Wiring Diagrams	419
Appendix G BIOS Rewrite Procedures	421
Appendix H EC/KBC Rewrite Procedures	423