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Chapter 6: Fundamental Laptops and Portable Devices 31How ToHow ToStep 5.Step 6.Blow compressed air between the keys.Wipe laptop and keyboard with a soft, lint-free cloth lightly moistened withwater or computer-screen cleaner.To clean the ventilation area, perform the following procedures:Step 1.Step 2.Step 3.Step 4.Step 5.Step 6.Turn off the laptop.Disconnect all attached devices.Disconnect laptop from the electrical outlet.Remove all installed batteries.Use compressed air or a nonelectrostatic vacuum to clean out the dust from thevents and the fan behind the vent.Use tweezers to remove any debris.To properly clean an LCD screen, perform the following procedures:Step 1.Step 2.Step 3.Step 4.Step 5.Turn off the laptop.Disconnect all attached devices.Disconnect laptop from the electrical outlet.Remove all installed batteries.Wipe display with a soft, lint-free cloth lightly moistened with water or LCDcleaner.CautionDo not spray cleaning solution directly onto the LCD. Use products specifically designed for cleaningLCD screens.To clean the touchpad on a laptop, perform the following procedures:How ToStep 1.Step 2.Step 3.Step 4.Step 5.Turn off the laptop.Disconnect all attached devices.Disconnect laptop from the electrical outlet.Remove all installed batteries.Wipe surface of touchpad gently with a soft, lint-free cloth moistened with anapproved cleaner. Never use a wet cloth.CautionUse a soft, lint-free cloth with an approved cleaning solution to avoid damaging laptop surfaces.Apply the cleaning solution to the lint-free cloth, not directly to the laptop.
32 IT Essentials: PC Harware and Software Companion GuideTo clean a floppy drive, use a commercially available cleaning kit. Floppy drive cleaningkits include pretreated floppy disks that remove contaminants from the floppy drive headsthat have accumulated through normal operation. To clean the drive, follow these steps:How ToHow ToHow ToStep 1.Step 2.Remove all media from the floppy drive.Insert the cleaning disk and let it spin for the suggested amount of time.Dirt, dust, and other contaminants can collect in your optical drives and on the discs.Contaminated drives and discs can cause malfunctions, missing data, error messages andlost productivity. To clean an optical disc, use a commercially available CD or DVD drivecleaning disc. Many floppy disk cleaning kits include an optical disc cleaner. Like the floppydisk cleaner, optical disc cleaner kits contain a cleaning solution and a nonabrasive discthat is inserted into the optical drive. Perform the following cleaning procedures:Step 1.Step 2.Remove all media from the optical drive.Insert the cleaning disc and let it spin for the suggested amount of time to cleanall contact areas.For a CD or DVD disc, inspect the disc for scratches. Replace discs that contain deepscratches because they can cause data errors. If you notice problems such as skipping ordegraded playback quality with your CDs or DVDs, clean the discs. Commercial productsare available that clean discs and provide protection from dust, fingerprints, and scratches.Cleaning products for CDs are safe to use on DVDs. To clean the disc, follow these steps:Step 1.Step 2.Step 3.Step 4.Step 5.Hold the disc by its outer edge or by the inside edge of the center hole.Gently wipe the disc with a lint-free cotton cloth. Never use paper or any materialthat can scratch the disc or leave streaks.Wipe from the center of the disc outward. Never use a circular motion.Apply a commercial CD or DVD cleaning solution to the lint-free cotton cloth,and wipe again if any contaminates remain on the disc.Allow the disc to dry before it is inserted into the drive.Identify Optimal Operating EnvironmentsAn optimal operating environment for a laptop is clean, free of potential contaminants, andwithin the temperature and humidity range specified by the manufacturer. With most desktopcomputers, the operating environment can be controlled. However, because of theportable nature of laptops, it is not always possible to control the temperature, humidity,and working conditions. Laptops are built to resist adverse environments, but techniciansshould always take precautions to protect the equipment from damage and loss of data.It is important to transport or ship laptops carefully. Use a padded laptop case to store yourlaptop. When you carry it, use an approved computer bag. If the laptop is shipped, use
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vAbout the Technical ReviewersDavid
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ixIdentify the Names, Purposes, and
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CHAPTER 1Introduction to the Person
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CHAPTER 13Advanced Laptops and Port
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GlossaryThis glossary defines many
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ase station 3AppleTalk A protocol s
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desktop computer 7crosstalk Interfe
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