2.4 System Board Troubleshooting
2 Troubleshooting Procedures
Table 2-3 D port status (1/9)
D port
status
Inspection items
Details
Enabling address line A20 and Clearing a
software reset bit
Prohibition of APIC
Initializing MCHM
Initializing ICHM
Initializing Super I/O
Initializing debug port
Dummy read of 3
rd
Bus data
Setting of printer port
(Only for the model supporting PRT)
F000H BTBK_START
Initializing the CH0 of a PIT
(For HOLD_ON)
Initializing flags determining whether BIOS
is rewritten
CHECK SUM CHECK
Switching to protected mode
Examining the checksum of Boot Block
(Skip when returned to S3)
HLT when check sum error
Examining the checksum other than Boot
Block
F001H BTBK_CALC_CHKSUM_END
EC/KBC rewrite check
BIOS rewrite when “rewrite” is requested
Transition of the process to System BIOS IRT
when returned to S3
Key
input
When inputting key, [
],
[
],
[TAB] key check
F002H BTBK_INI_SC_START
Initializing security controller
F003H BTBK_INI_SC_ERR
F004H BTBK_SC_HW_FAILURE
F005H BTBK_INI_KBC_END
Checking whether BIOS rewrite is
requested
CheckSum error except Boot Block
when rewrite is requested by user
Transition to BIOS rewrite
F006H BTBK_ENTER_CHK_BIOS_SIGN
BIOS signature check
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL]
2-19
Содержание Tecra A3X
Страница 10: ...x CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 1 Hardware Overview ...
Страница 16: ...1 Hardware Overview 1 vi CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 50: ...1 Hardware Overview 1 13 AC Adapter 1 34 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 51: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Страница 52: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 2 ...
Страница 56: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 105: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Страница 106: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 3 ...
Страница 110: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 217: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 218: ...4 Replacement Procedures 4 ii CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 4 ...
Страница 336: ...Replacement Procedures 4 23 Fluorescent Lamp 4 114 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 337: ... CONFIDENTIAL Appendices ...
Страница 338: ...Appendices App ii CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 350: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 392: ...Appendices Appendix C Pin Assignment C 34 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 402: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 404: ...Appendices Appendix F Wiring Diagrams F 2 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 406: ...Appendices Appendix G BIOS KBC EC Update G 2 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...
Страница 408: ...Appendices Appendix H Reliability H 2 CONFIDENTIAL Satellite A50S TECRA A3X Maintenance Manual 960 534 ...