2 Troubleshooting Procedures
2.4 System Board Troubleshooting
2-20
TECRA M3 Maintenance Manual (960-507)
Table 2-5 Debug port LED boot mode status (1/7)
LED Status
Item
Contents/Message
Clearance of software reset bit
Permission of A20 line
Start
Initialization for special register and Intel chip set
PIT CH0 initialization (for
HOLD_ON)
BIOS rewrite flag initialization
Transition to protected mode
Boot block checksum (HLT when checksum error
occurred.)
Checksum check (FEF00000h-
FEFF7FFFh)
Checksum check except boot block
B1h
EC/KBC rewrite check
Transition to BIOS rewriting when required
(HLT when Initialization for SC error occurred) B3H
Start initializing the SC
(HLT when processing the SC can not be continued by
the HW failure) B4H
transmission of KB enable command
B2h
Executing initialization of KBC
sequence
Key check at Boot Block
B5h
Enabling CPU cache
BIOS signature check
B6h
BIOS rewrite request check
Checksum error except boot block
(When key rewriting is requested, go to BIOS rewrite
process)
Transition of the process to System
BIOS IRT side
B7h
Rewriting BIOS
H/W initialization
Setting of base for Power Management I/O Space
Permission of BIOS writing
Serial interrupt control
Releasing BIOS rewrite protection
Enabling SM Bus I/O space
Enabling SM Bus access
Opening work I/O for SDRAM initialization
Setting FDC port
Initialization of PIT channel 1 (Setting refresh interval to
30ms)
Initialization of PIT, DMAC, PIC
Prohibition of cache
Содержание Tecra M3 Series
Страница 1: ...Toshiba Personal Computer TECRA M3 Maintenance Manual TOSHIBA CORPORATION File Number 960 507 ...
Страница 10: ...x TECRA M3 Maintenance Manual 960 507 ...
Страница 11: ...Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii TECRA M3 Maintenance Manual 960 507 ...
Страница 27: ...1 2 System Unit Block Diagram 1 Hardware Overview TECRA M3 Maintenance Manual 960 507 1 13 ...
Страница 53: ...1 13 Batteries 1 Hardware Overview TECRA M3 Maintenance Manual 960 507 1 39 ...
Страница 54: ...Chapter 2 Troubleshooting Procedures ...
Страница 55: ...2 Troubleshooting Procedures 2 ii TECRA M3 Maintenance Manual 960 507 ...
Страница 58: ...2 Troubleshooting Procedures TECRA M3 Maintenance Manual 960 507 2 v ...
Страница 60: ...2 Troubleshooting Procedures TECRA M3 Maintenance Manual 960 507 2 vii ...
Страница 118: ...2 Troubleshooting Procedures 2 16 PCI ExpressCard Slot Troubleshooting 2 58 TECRA M3 Maintenance Manual 960 507 ...
Страница 119: ...Chapter 3 Tests and Diagnostics ...
Страница 120: ...3 Tests and Diagnostics 3 ii TECRA M3 Maintenance Manual 960 507 3 ...
Страница 124: ...3 Tests and Diagnostics 3 vi TECRA M3 Maintenance Manual 960 507 ...
Страница 235: ...Chapter 4 Replacement Procedures ...
Страница 236: ...4 Replacement Procedures 4 ii TECRA M3 Maintenance Manual 960 507 ...
Страница 255: ...4 5 HDD 4 Replacement Procedures TECRA M3 Maintenance Manual 960 507 4 15 Figure 4 4 Removing the HDD cover ...
Страница 289: ...4 Replacement Procedures 4 14 Sound board 4 46 TECRA M3 Maintenance Manual 960 507 Figure 4 28 Removing the sound board ...
Страница 299: ...4 Replacement Procedures 4 17 RGB harness holder RGB board Modem jack 4 56 TECRA M3 Maintenance Manual 960 507 ...
Страница 322: ...4 23 LCD unit FL inverter 4 Replacement Procedures TECRA M3 Maintenance Manual 960 507 4 77 12 Stick the two mask seals ...
Страница 359: ...Appendices ...
Страница 360: ...Appendices App ii TECRA M3 Maintenance Manual 960 507 ...
Страница 363: ...Appendices TECRA M3 Maintenance Manual 960 507 App v Appendix I Reliability I 1 ...
Страница 367: ...Appendices TECRA M3 Maintenance Manual 960 507 App ix ...
Страница 373: ...Appendices Appendix A Handling the LCD Module A 6 TECRA M3 Maintenance Manual 960 507 ...
Страница 395: ...Appendices Appendix C Pin Assignments C 14 TECRA M3 Maintenance Manual 960 507 143 ACAD03 EYP I O 144 ACAD04 EYP I O ...
Страница 403: ...Appendices Appendix C Pin Assignments C 22 TECRA M3 Maintenance Manual 960 507 217 GND 218 NC ...
Страница 407: ...Appendices Appendix C Pin Assignments C 26 TECRA M3 Maintenance Manual 960 507 13 LAN E3V 14 LAN E3V ...
Страница 414: ...Appendix C Pin Assignments Appendices TECRA M3 Maintenance Manual 960 507 C 33 3 SPOTR PXP 4 SPOTR PXN O ...
Страница 427: ...Appendices Appendix E Key Layout E 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 429: ...Appendices Appendix F Wiring diagrams F 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 431: ...Appendices Appendix G BIOS rewrite procedures G 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 433: ...Appendices Appendix H EC KBC rewrite procedures H 2 TECRA M3 Maintenance Manual 960 507 ...
Страница 435: ...Appendices Appendix I Reliability I 2 TECRA M3 Maintenance Manual 960 507 ...