2.4 System board Troubleshooting
2 Troubleshooting
TECRA M4 Maintenance Manual (960-521)
[CONFIDENTIAL]
2-19
Check 3
The IRT checks the System board. When the IRT detects an error, the system stops
or an error message appears.
If one of the following error messages (1) through (17), (22) or (23) is displayed,
go to Procedure 5.
If error message (18) is displayed, go to the Keyboard Troubleshooting Procedures
in Section 2.7.
If error message (19), (20) or (21) is displayed, go to the 2.5” HDD
Troubleshooting Procedures in Section 2.6.
(1)
PIT ERROR
(2)
MEMORY REFRESH ERROR
(3)
TIMER CH.2 OUT ERROR
(4)
CMOS CHECKSUM ERROR
(5)
CMOS BAD BATTERY ERROR
(6)
FIRST 64KB MEMORY ERROR
(7)
FIRST 64KB MEMORY PARITY ERROR
(8)
VRAM ERROR
(9)
SYSTEM MEMORY ERROR
(10)
SYSTEM MEMORY PARITY ERROR
(11)
EXTENDED MEMORY ERROR
(12)
EXTENDED MEMORY PARITY ERROR
(13)
DMA PAGE REGISTER ERROR
(14)
DMAC #1 ERROR
(15)
DMAC #2 ERROR
(16)
PIC #1 ERROR
(17)
PIC #2 ERROR
(18)
KBC ERROR
(19)
HDC ERROR
(20)
HDD #0 ERROR
(21)
HDD #1 ERROR
(22)
TIMER INTERRUPT ERROR
(23)
RTC UPDATE ERROR
Summary of Contents for Tecra M4
Page 10: ...x CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 1 Hardware Overview ...
Page 51: ...1 Hardware Overview 1 8 AC Adapter 1 36 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 52: ... CONFIDENTIAL Chapter 2 Troubleshooting ...
Page 53: ...2 Troubleshooting 2 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 2 ...
Page 57: ...2 Troubleshooting 2 vi CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 114: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 115: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 119: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 223: ...3 Tests and Diagnostics 3 30 SETUP 3 104 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 224: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 225: ...4 Replacement Procedures 4 ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 4 ...
Page 300: ...4 Replacement Procedures 4 29 Digitizer 4 70 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 320: ... CONFIDENTIAL Appendices ...
Page 321: ...Appendices App ii CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 341: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 379: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...
Page 387: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL TECRA M4 Maintenance Manual 960 521 ...