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2 Troubleshooting Procedures
Satellite U840
Maintenance Manual (960-Q08)
11
Procedure 4
Replacement Check
The power is supplied to the system board by the AC adapter. If either the AC adapter or the
system board was damaged, perform the following Checks.
To disassemble the computer, follow the steps described in Chapter 4, Replacement
Procedures.
When AC adapter is connected;
Check 1
AC adapter may be faulty. Replace the AC adapter with a new one. If the problem
still occurs, perform Check 2.
Check 2
System board may be faulty. Replace the system board with a new one.
When AC adapter is not connected ;
(When driving with battery pack)
Check 1
Battery pack may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 2.
Check 2
System board may be faulty. Replace it with a new one.
Содержание Satellite U840 Series
Страница 1: ...Satellite U840 Maintenance Manual 960 Q08 Chapter 1 Hardware Overview ...
Страница 18: ...Chapter 1 Hardware Overview Satellite U840 Maintenance Manual 960 Q08 15 ...
Страница 24: ...2 1 Satellite U840 Maintenance Manual 960 Q08 Chapter 2 Troubleshooting Procedures ...
Страница 63: ...Test Program for Field Satellite U840 Tests and Diagnostics Manual 1 Chapter 3 Diagnostic Programs ...
Страница 190: ...Satellite U840 Maintenance Manual 960 Q08 Appendix B Appendix B Board Layout B 1 System Board ...
Страница 191: ...Board Layout Satellite U840 Maintenance Manual 960 Q08 Figure B 1 System board layout Front 02 01 03 04 05 06 07 08 09 ...