2 Troubleshooting Procedures
2.4 System Board Troubleshooting
Table 2-5 Printer port LED boot mode status (3/7)
LED Status
Test item
Message
Check of DRAM type and size
(Reading DRAM size at Warm Boot)
01h
(DRAM check at Cold Boot))
Check of DRAM size
(HLT when the DRAM type is 0)
11h
SM-RAM stack area test
(HLT when the stack area can not be used.)
Cache configuration (L1 cache
only)
CMOS access test
(at Cold Boot) (HLT when an error is detected.)
Battery level check of CMOS
CMOS checksum check
Initialization of CMOS data (1)
Setting of IRT status
(Boot status, the remaining bit is 0.)
02h
Storing DRAM size in CMOS
Not resume when a CMOS error occurred
Resume branch (at Cold Boot)
Not resume when resume status code is not set
SM-RAM checksum check (Resume error 0F4H)
Check of memory configuration change
RAM area checksum check in system BIOS (Resume
error 0FAH)
PnP RAM checksum check (Resume error 0F8H)
PIT test and initialization (HLT when refresh signal is not
changed)
Initialization of PIT CH0 (Setting of timer interrupt interval
to 55ms)
Initialization of PIT CH2 (Setting of sound generator
frequency to 664Hz)
Resume error check
Transition to RESUME-MAIN
Reset of CPU clock to low
Prohibition of all SMI
Clearance of resume status
Return to ROM
Initialization of memory map
Resume error process
Setting of resume error request
Check hibernation from S4 OS
Check hibernation status code
03h
Boot mode process (Not resume)
ROM/RAM copy of system BIOS (HLT when copied
BIOS checksum error)
2-22
TECRA M2V Maintenance Manual (960-476)
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 ...
Страница 12: ...1 Hardware Overview 1 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 50: ...1 Hardware Overview 1 13 Batteries 1 36 TECRA M2V Maintenance Manual 960 476 ...
Страница 51: ...Chapter 2 Troubleshooting Procedures ...
Страница 52: ...2 Troubleshooting Procedures 2 ii TECRA M2V Maintenance Manual 960 476 ...
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 ...
Страница 196: ...4 Replacement Procedures 4 ii TECRA M2V Maintenance Manual 960 476 ...
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 ...
Страница 298: ...Appendices App ii TECRA M2V Maintenance Manual 960 476 ...
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 ...