2 Troubleshooting
2.3 Power Supply
2-8
Satellite A100/A105 / TECRA A7 Maintenan ce Manual
Procedure 2 Connection Check
Power is supplied to the system board as illustrated below:
AC
adaptor
System board
AC power cord
AC adaptor cord
Battery pack
Follow the steps below to check whether each connector has been connected correctly:
Check 1
Make sure the AC adaptor and AC power cord have been firmly plugged
into the DC IN 19V socket and wall outlet, respectively. When they have
been connected corre ctly, perform Check 2.
Check 2
Connect a new AC adaptor and AC power cord.
?
If the DC IN LED does not go on, go to Procedure 3.
?
If the battery LED does not go on, perform Check 3.
Check 3
Make sure the battery pack has been correctly installed in the computer.
If the battery LED does not go on while the battery pack has been installed
correctly, go to Procedure 3.
Procedure 3 Replacement Check
The system board, power supply board, or CPU may be faulty. Disassemble the computer
according to Chapter 4 and follow the steps below:
Check 1
Replace the power supply board with a new one. If the battery pack is still
not working properly, perform Check 2.
Check 2
Replace the system board with a new one. If the battery pack is still not
working properly, perform Check 3.
Check 3
Replace the CPU with a new one.
Summary of Contents for Satellite A100 Series
Page 2: ...ii S No ...
Page 15: ...Chapter 1 Hardware Overview ...
Page 16: ...1 Hardware Overview ii Satellite A100 A105 TECRA A7 Maintenance Manual ...
Page 53: ...2 Troubleshooting 2 4 System Board 2 10 Satellite A100 A105 TECRA A7 Maintenance Manual ...
Page 73: ...Chapter 3 Diagnostic Programs ...
Page 76: ......
Page 115: ...3 5 System Test 3 Diagnostic Programs Satellite A100 A105 TECRA A7 Maintenance Manual 39 ...
Page 146: ...Chapter 4 Replacement Procedures 4 1 ...
Page 147: ...4 Replacement Procedures 4 ii Satellite A100 A105 TECRA A7 Maintenance Manual ...
Page 154: ...4 Replacement Procedures 4 1 General 4 2 Satellite A100 A105 TECRA A7 Maintenance Manual ...
Page 222: ...6000 1 Appendices ...
Page 223: ...Appendices App ii Satellite A100 A105 TECRA A7 Maintenance Manual ...