Lenovo IdeaCentre A720 User's Guide download pdf (Page 37)

User Guide

b. When you change your TV signal from analog to digital, your saved

channel list for analog TV is deleted. When you want to watch analog TV

again, you must create and save a new channel list.

• YoumustsettheTVtunerinputsignaltoanalogbeforeyoucanwatch

Teletext programming.

4.7 Performing Daily Maintenance Tasks

Cleaning the computer components

Because many of the computer components consist of sophisticated integrated

circuit boards, it is very important to periodically clean the computer to prevent

dust buildup. The cleaning supplies you need to clean the components include:

a vacuum cleaner, a soft cotton cloth, pure water (preferably puriﬁed or distilled

water) and cotton swabs.

Attention: Before you clean your computer, disconnect the computer

fromtheelectricaloutlet.Cleanyourcomputerwithasoftcloth

dampened with water. Do not use liquid or aerosol cleaners, which may

contain ﬂammable substances.

Note: To avoid damaging the computer or display, do not spray cleaning

solution directly onto the display. Only use products speciﬁcally designed

for cleaning displays, and follow the instructions included with the product.

The following are general methods for cleaning the components:

• Youcanuseasoftclothtoremovedustonthesurfaceofthecomputer,the

monitor, the printer, the speakers and the mouse.

• Youcanuseavacuumcleanertocleaninotherwiseinaccessiblecorners.

• Tocleanthekeyboardthoroughly,shutdownthecomputerandscrubitgently

with a wet cloth. Do not use the keyboard until it is dry.

Do not do any of the following:

• Allowwatertoenterthecomputer.

• Useaheavilydampenedcloth.

• Spraywaterdirectlyontothesurfaceofthemonitororinsidethecomputer.

LCD monitors should be cleaned daily. Use a dry cloth to brush dust from the

monitor and keyboard every day. Keep all surfaces clean and free of grease stains.

1 2 ... 32 33 34 35 36 37 38 39

No comments

Lenovo IdeaCentre A720 User's Guide Page 37