The computer does not turn on.

Follow this procedure to troubleshoot power issues on a notebook computer that does not turn on.

IMPORTANT: While following this procedure, note the LED status at each step. This will provide additional information for the technician if repair becomes necessary.

1. Connect the AC adapter [FIG.1] into a known working AC outlet and to the notebook.

   NOTES:

   • Do not connect the AC adapter to a surge protector or extension cord.
   • The AC adapter can be confirmed as receiving power by ensuring the LED on the adapter is lit. If the LED is not lit when plugged into a working AC outlet, the adapter must be replaced.

    

2. Attempt to turn on the notebook.
3. Press and hold the Power Switch for 15 seconds.
4. Attempt to turn on the notebook.
5. Remove the battery.
6. Attempt to turn on the notebook.

   NOTE: If the notebook turns on without the battery, connect and charge the battery for 24 hours.

7. Disconnect all external devices that are connected to the computer.

   NOTE: These devices include, but are not limited to, a modem, floppy disk drive, network connection, USB device, printer, keyboard, or mouse.

8. Attempt to turn on the notebook.
9. Remove any additional Random Access Memory (RAM) that was installed in the computer.
10. Attempt to turn on the notebook.

If the issue is still unresolved, service may be required. The Sony® eService Web site at http://eservice.sony.com/ can assist you in obtaining service from a Sony Service Center or locating a Sony Authorized Servicer.

NOTE: When shipping the notebook for repair, include all notes of the LED status that displayed during troubleshooting.