Sony PCG-505GX - Manual (Page 109)

Notes on Use
On Maintenance
□ Make sure to disconnect the AC adapter before cleaning the
computer.
□ Avoid rubbing the LCD screen as this can damage the screen. Use a
soft, dry cloth to wipe the LCD screen.
□ Clean the computer with a soft cloth lightly moistened with a mild
detergent solution. Do not use any type of abrasive pad, scouring
powder or solvent, such as alcohol or benzine.