2.4 System Board Troubleshooting
2 Troubleshooting Procedures
Table 2-5 Printer port LED boot mode status (4/7)
LED Status
Test item
Message
04h
BIOS signature check (at Cold
Boot)
SMRAM initialization
Check of Wake Up factor
05h
Rewriting of SMRAM base and
storing CPU state map for BIOS
(Enabling SMI only by ASMI)
PIT test (at the Cold Boot) and initialization
Setting of test pattern for PIT#0 of CH0
Check whether the test pattern set can be read.
Initialization of PIT CH0 (Setting of timer interrupt interval
to 55ms)
Initialization of PIT CH2 (Setting of sound generator
frequency to 664Hz)
Test of PIT CH1 (Check whether a refresh signal is
working properly when refresh interval is set to 30ms.
HLT when the time is out.)
Test of PIT CH2 (Check whether the speaker gate is
working properly.)
Measuring of CPU clock
Enabling SMI except for auto-off function
Check of parameter block A
Control of input voltage over rating
Control of battery discharge current
Control of AC adapter over current rating
Division process of measuring IRT time
Setting for clock generator
CPU initialization
Setting of CPU core frequency
Setting of Gsv high and low frequency
Check of Geyserville support
06h
Initialization of a device which
needs initialization before
initialization of PCI bus
Setting of CPU clock to high
Storing memory configuration in
buffer
Reading EC version
Update of flash ROM type
07h
Evaluation of destination
(home/overseas) by DMI data
TECRA M2V Maintenance Manual (960-476)
2-23
Содержание Tecra M2V
Страница 1: ...Toshiba Personal Computer TECRA M2V Maintenance Manual TOSHIBA CORPORATION File Number 960 476 ...
Страница 10: ...x TECRA M2V Maintenance Manual 960 476 ...
Страница 11: ...Chapter 1 Hardware Overview ...
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Страница 50: ...1 Hardware Overview 1 13 Batteries 1 36 TECRA M2V Maintenance Manual 960 476 ...
Страница 51: ...Chapter 2 Troubleshooting Procedures ...
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Страница 56: ...2 Troubleshooting Procedures 2 vi TECRA M2V Maintenance Manual 960 476 ...
Страница 110: ...2 Troubleshooting Procedures 2 14 SD Card Slot Troubleshooting 2 54 TECRA M2V Maintenance Manual 960 476 ...
Страница 111: ...Chapter 3 Tests and Diagnostics ...
Страница 112: ...3 Tests and Diagnostics 3 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 195: ...Chapter 4 Replacement Procedures ...
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Страница 200: ...4 Replacement Procedures 4 vi TECRA M2V Maintenance Manual 960 476 ...
Страница 274: ...4 Replacement Procedures 4 23 LCD unit FL inverter 4 74 TECRA M2V Maintenance Manual 960 476 ...
Страница 296: ...4 Replacement Procedure 4 26 Fluorescent Lamp 4 96 TECRA M2V Maintenance Manual 960 476 ...
Страница 297: ...Appendices ...
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Страница 304: ...Appendices App viii TECRA M2V Maintenance Manual 960 476 ...
Страница 310: ...Appendices Appendix A Handling the LCD Module A 6 TECRA M2 Maintenance Manual 960 468 ...
Страница 356: ...Appendices Appendix E Key Layout E 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 360: ...Appendices Appendix G BIOS rewrite procedures G 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 362: ...Appendices Appendix H EC KBC rewrite procedures H 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 364: ...Appendices Appendix I Reliability I 2 TECRA M2V Maintenance Manual 960 476 ...