TAILIEUCHUNG - Fix your own computer for seniors for dummies- P9

Fix your own computer for seniors for dummies- P9: The way I look at being a senior is this: We got there ahead of the rest of the pack. Let those behind us get all excited over tweets and iPods and video games that simulate the challenges and joys of life. | Chapter 13 Taking Care of Your Mouse or Trackball and Keyboard 3. Use a soft cloth dampened with a weak plastic cleaner or a small amount of isopropyl alcohol to polish the keys and the surrounding case. The most fastidious among you may want to use the same solution on a cotton swab to clean between the keys. If it s absolutely necessary you can remove individual keys with a special tool that s supplied with many keyboards a technician s tweezers with hooked ends will also work. Work very carefully to avoid breaking the plastic keycaps or the somewhat delicate switches beneath them. 4. Let the keyboard dry for a half an hour or so. You can use a hairdryer on low heat to speed the l@i drying process. Just keep the air stream moving and don t get the nozzle too close to sensitive plastic parts. 5. When the keyboard is nice and dry reattach it to your computer. You can plug in a USB keyboard while the computer l@i is on. If your mouse is an older model with a PS 2 connector reattach it before you turn on the power. Diagnose a Troubled Keyboard 1. If the keyboard completely stops responding check to see whether the device is connected properly at the computer end and look for any cuts or crimps in the cable. Fix any loose connections and straighten any kinks if the cable is cut replace it. I 111225 Part III Fixing Sick Hardware 2. If the connections and cable are fine try rebooting the computer to see whether the keyboard comes back to life. With luck you were experiencing a once-in-a-blue-moon system lockup. If the keyboard freezes more frequently than a blue moon or if the intervals between freeze-ups begin to shorten you may be seeing early symptoms of the impending failure of a major component such as the motherboard or the power supply. Run a diagnostic program such as the one that ships with many computers or take the computer to a repair shop for a good once-over. 3. Check the connection between the PC and the keyboard as

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