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2 Troubleshooting Procedures
2.4 System Board Troubleshooting
2-22
Satellite A50/TECRA A2 Maintenance Manual (960-478)
Table 2-3 D port status (2/9)
D port
status
Inspection items
Details
F005h
Executing CHGBIOSA
Storing key scan code
Setting up TASK_1ms_TSC
Controlling Fan
Initializing sound systems (For beep sound)
Enabling system speaker
Canceling mute
Maximizing volume
When BIOS,EC/KBC is requested to be rewritten
(Green blinks in 2s cycle (ON:1s, Off: 1s))
Abnormal BIOS ROM
(Orange blinks in 2s cycle (ON:1s, Off: 1s))
Key input
Disabling USB first
Sound beep
Waiting for key input
Loading CHGBIOSA.EXE/CHGFIRMA.EXE
Reset FDC
Setting up the parameter for 2HD (1.44MB)
Loading firs t sector and Confirming the media
if it is 2HD (1.44MB)
Setting up the parameter for 2DD (720KB)
Searching CHGBIOSA.EXE from route directory
Calculate starting directory head, sector
Loading route directory per sector
Searching entry of “CHGBIOSA.EXE/CHGFIRMA.EXE”
from the loaded sector
Loading EXE header of “CHGBIOSA.EXE
/CHGFIRMA.EXE”, Key input when an error occurred
Executing “CHGBIOSA.EXE”/”CHGFIRMA.EXE”
Summary of Contents for Tecra A2 Series
Page 10: ...x Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 11: ...Chapter 1 Hardware Overview ...
Page 49: ...Chapter 2 Troubleshooting Procedures ...
Page 50: ...2 Troubleshooting Procedures 2 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 2 ...
Page 54: ...2 Troubleshooting Procedures 2 vi Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 105: ...Chapter 3 Tests and Diagnostics ...
Page 106: ...3 Tests and Diagnostics 3 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 3 ...
Page 197: ...Chapter 4 Replacement Procedures ...
Page 198: ...4 Replacement Procedures 4 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 4 ...
Page 204: ...4 Replacement Procedures 4 viii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 271: ...Appendices ...
Page 272: ...Appendices App ii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 290: ...Appendices Apx B Board Layout B 6 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 332: ...Appendices Apx E Key Layout E 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 334: ...Appendices Apx F Wiring Diagrams F 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 336: ...Appendices Apx G BIOS KBC EC Update G 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 338: ...Appendices Apx H Reliability H 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...