The computer does not turn on.

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

IMPORTANT: Document all the LED indications that display when attempting to turn on the notebook. 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.

   NOTE: Do not connect the AC adapter to any surge protectors or extension cords.

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 a description of the LED indications that display when attempting to turn on the notebook.