Acer 420 series User Manual page 6

vi
3
Use a soft cloth moistened with water. Do not use liquid or
aerosol cleaners.
4
To clean the display screen, use an LCD cleaning kit.
If any of the following occurs:
•
The computer has been dropped or the body has been damaged.
•
Liquid has been spilled into the product.
•
The computer does not operate normally.
Please refer to "Troubleshooting my computer" on page 45.