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2 Troubleshooting Procedures
2.8 Display Troubleshooting
2-40
Satellite A50/TECRA A2 Maintenance Manual (960-478)
2.8 Display Troubleshooting
This section describes how to determine if the computer’s display is functioning properly.
Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector and Cable Check
Procedure 3: Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
The Display Test program is stored on the Diagnostics disk. Insert the Diagnostics disk in
the computer’s floppy disk drive, turn on the computer and run the test. Refer to Chapter 3,
Tests and Diagnostics
for details.
This program checks the display controller on the system board. If an error is detected, go
to Procedure 3.
Procedure 2
Connector and Cable Check
The LCD module is connected to the system board through the LCD harness. The cable
may be disconnected from the board or damaged. Disassemble the computer following the
steps described in Chapter 4,
Replacement Procedures
. Check that the pin of the LCD I/F
connector is not bent or broken. If the connection is loose, reconnect firmly and repeat
Procedure 2. If there is still an error, go to Procedure 3.
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 ...