Compaq Evo Notebook n200 Reference Guide Mobile Expansion Unit - Page 30

Troubleshooting External Device Problems and Solutions Problem A new device is not recognized as part of the computer system. Possible Cause The signal cable or power cord of the new device is loose or disconnected. The device was connected while the system power was on. Solution I Ensure that all signal cables are securely connected to the device and the system. I Ensure that all power cords are securely connected to the computer and an electrical outlet. Turn off the computer, turn on the device, then restart the computer. Optical Drive Problems and Solutions Problem The system cannot read the optical disc. Possible Cause The optical disc is not properly seated in the drive. The optical disc is upside down. The optical disc may be dirty or scratched. Solution Eject the disc, reseat the disc in the drive tray, then close the drive tray. Eject the disc, turn it over, then close the drive tray. Replace the disc. A-4 Reference Guide