2 Troubleshooting Procedures
QOSMIO X300 Series Maintenance Manual
13
Procedure 3
Power supply connection check
The power supply wiring diagram is shown below:
AC
adaptor
System
board
Battery
AC adaptor cord
AC power cord
Any of the connectors may be disconnected. Perform Check 1.
Check 1
Disconnect the AC power cord from wall outlet. Check the power cable for
breaks. If the power cord is damaged, connect a new AC power cord. If there is
no damage, go to Check 2.
Check 2
Make sure the AC adaptor cord and AC power cord are firmly plugged into the
DC-IN socket, AC adaptor inlet and wall outlet. If these cables are connected
correctly, go to Check 3.
Check 3
Make sure that the DC-IN input port socket is firmly secured to the system board
of the computer.
•
If the DC-IN input socket is loose, go to Procedure 5.
•
If it is not loose, go to Check 4.
Check 4
Use a multi-meter to make sure that the AC adaptor output voltage is close to 19
V. If the output is several percent lower than 19 V, go to Check 5. If the output
is close to 19 V, go to Check 6.
Check 5
Connect a new AC adaptor or AC power cord.
•
If the DC-IN LED does not light, go to Procedure 4.
•
If the battery LED does not light, go to Check 6.
Check 6
Make sure the battery pack is installed in the computer correctly. If the battery is
properly installed and the battery LED still does not light, go to Procedure 4.
Summary of Contents for Qosmio X300 Series
Page 1: ...Toshiba Personal Computer Qosmio X300 Maintenance Manual TOSHIBA CORPORATION CONFIDENTIAL ...
Page 10: ...Chapter 1 Hardware Overview ...
Page 11: ...1 Hardware Overview Qosmio X300 Maintenance Manual 1 ii ...
Page 31: ...Chapter 2 Troubleshooting Procedures 2 ...
Page 32: ......
Page 99: ...3 Tests and Diagnostics 1 Chapter 3 Tests and Diagnostics ...
Page 104: ...3 Tests and Diagnostics 6 ...
Page 115: ...3 Tests and Diagnostics Japan keyboard UK keyboard 17 ...
Page 128: ...3 Tests and Diagnostics If the picture shows as below it means he HDD function is NG 30 ...
Page 136: ...3 Tests and Diagnostics You can press ESC to exit test after test pass 38 ...
Page 137: ...Chapter 4 Replacement Procedures ...
Page 138: ...4 Replacement Procedures Qosmio X300 Maintenance Manual 4 ii ...
Page 144: ...4 Replacement Procedures Qosmio X300 Maintenance Manual 4 viii ...