Toshiba PORTEGE R830 Maintenance Manual page 426

Appendices
3. If the panel's surface gets dirty, wipe it with cotton or a soft cloth. If it is still dirty,
try breathing on the surface to create a light condensate and wipe it again.
If the surface is very dirty, we recommend a CRT cleaning agent. Apply the agent to
a cloth and then wipe the panel's surface. Do not apply cleanser directly to the panel.
4. If water or other liquid is left on the panel's surface for a long period, it can change
the screen's tint or stain it. Be sure to quickly wipe off any liquid.
A-2 [CONFIDENTIAL] PORTEGE R830 Satellite R830 Series Maintenance Manual (960-880)
Appendix A Handling the LCD Module