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2.4 System Board Troubleshooting
2 Troubleshooting Procedures
PORTEGE M100 Maintenance Manual
(960-452)
2-21
To use the printer port LED, follow the steps below:
1.
Plug the printer port LED into the parallel port of the Advanced Port Replicator.
2.
Turn on the computer.
3.
Read the LED status from left to right as you are facing the back of the computer.
4.
Convert the status from binary to hexadecimal notation.
5.
If the final LED status is FFh (normal status), go to Procedure 3.
6.
If the final LED status matches any of the test status values in Table 2-3, perform
Check 1.
NOTE
: If an error condition is detected by the IRT test, the printer port LED displays an
error code after the IRT test ends. For example, when the printer port LED
displays 13h and halts, It indicates that the system memory test has already
completed and an error has been detected during the expansion memory test.
Table 2-4 Printer port LED boot mode status (1/5)
LED Status
Test item
Message
FFh
Start
Register initialization for boot block
PIT ch.0 initialization
BIOS rewrite flag initialization
Transition to protected mode
Boot block checksum
B0h
Flash ROM check
Checksum check except boot block
B1h
EC/KBC rewrite check
KBC initialization
B2h
BIOS rewrite
BIOS rewrite request check
System BIOS rewrite transition to
IRT
System BIOS rewrite transition to IRT
BIOS rewrite register initialization
PIT channel 1 initialization
PIT, DMAC,PIC initialization
Memory type check
Cache bus, L2 initialization, configuration
Enabling L1 cache
Memory clear
B5h
BIOS rewrite process
Protecting flash ROM area cache
Summary of Contents for Portege M100
Page 8: ...viii PORTEGE M100 Maintenance Manual 960 452 3 29 IEEE1394 Test Program 3 91 ...
Page 11: ...PORTEGE M100 Maintenance Manual 960 452 xi ...
Page 12: ...Chapter 1 Hardware Overview ...
Page 13: ...1 Hardware Overview 1 ii PORTEGE M100 Maintenance Manual 960 452 ...
Page 36: ...Chapter 2 Troubleshooting Procedures ...
Page 37: ...2 Troubleshooting Procedures 2 ii PORTEGE M100 Maintenance Manual 960 452 ...
Page 42: ...2 Troubleshooting Procedures PORTEGE M100 Maintenance Manual 960 452 2 vii ...
Page 102: ...Chapter 3 Tests and Diagnostics ...
Page 103: ...3 Tests and Diagnostics 3 ii PORTEGE M100 Maintenance Manual 960 452 ...
Page 107: ...3 Tests and Diagnostics 3 vi PORTEGE M100 Maintenance Manual 960 452 ...
Page 140: ...3 Tests and Diagnostics 3 14 Expansion Test 3 32 PORTEGE M100 Maintenance Manual 960 452 ...
Page 160: ...3 23 SETUP 3 Tests and Diagnostics PORTEGE M100 Maintenance Manual 960 452 3 51 13 PC Card ...
Page 204: ...Chapter 4 Replacement Procedures ...
Page 205: ...4 Replacement Procedures 4 ii PORTEGE M100 Maintenance Manual 960 452 ...
Page 313: ...Appendices Appendices ...
Page 314: ...Appendices App ii PORTEGE M100 Maintenance Manual 960 452 ...
Page 320: ...Appendices App viii PORTEGE M100 Maintenance Manual 960 452 ...
Page 326: ...Appendices Appendix A Handling the LCD Module A 6 PORTEGE M100 Maintenance Manual 960 452 ...
Page 336: ...Appendices Appendix B Board Layout B 10 PORTEGE M100 Maintenance Manual 960 452 ...
Page 382: ...Appendices Appendix G BIOS Rewrite Procedures G 2 PORTEGE M100 Maintenance Manual 960 452 ...
Page 384: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 PORTEGE M100 Maintenance Manual 960 452 ...
Page 386: ...Appendices Appendix I Reliability I 2 PORTEGE M100 Maintenance Manual 960 452 ...