1. Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals Presentation 36 – Troubleshooting a Malfunctioning PC

2. 2 Objectives At the end of this presentation, you will be able to:

3. 3 Recognize several symptoms that are caused by failures in the hard drive interface. Recognize the difference between a control malfunction and a data malfunction.

4. 4 Precautions Turn off the equipment before making any hardware changes. After changing anything, reboot the computer so that the change can take effect.

5. 5 Keyboard Problems QWERTY ASDFGH ZXCVBN

6. Symptom QWERTY ASDFGH ZXCVBN Error message says no keyboard is connected.

7. 7 Troubleshooting Process Check keyboard connection. Substitute known-good keyboard. Try suspect keyboard on known-good computer. If problem is keyboard, replace or repair. If problem is in motherboard, replace or repair.

8. 8 Replace or Repair? How expensive is the Field Replaceable Unit (FRU)? How long will it take to repair? Are replacement parts available? What is your charter?

9. How expensive is the Field Replaceable Unit (FRU)?

10. 10 How long will it take to repair?

11. 11 Are replacement parts available?

12. 12 What is your charter?

13. Symptom QWERTY ASDFGH ZXCVBN No keys function.

14. 14 Troubleshooting Process Substitute known-good keyboard. Try suspect keyboard on known-good computer. If problem is keyboard, replace or repair. If problem is in motherboard, replace or repair.

15. Symptom QWERTY ASDFGH ZXCVBN A key works intermittently.

16. 16 Troubleshooting Process Try cleaning the keyboard. Blow out with compressed air or vacuum with static-safe vacuum cleaner. Weigh your time and chances of success against the cost of a new keyboard.

17. 17 Mouse Problems

18. Symptom Buttons are erratic.

19. Symptom Cursor moves erratically.

20. Symptom Cursor appears on screen but will not move.

21. Symptom Mouse driver does not load.

22. Floppy Drive Problems

23. Symptom A newly installed floppy does not work.

24. Symptom You can’t boot from the new floppy.

25. Hard Drive Problems

26. Symptom Hard drive performance has been slowing down over time.

27. Symptom PC will not boot from the hard drive.

28. 28 Possible Problems: The SETUP configuration has been changed or lost. One or more of the OS boot files on the hard drive may be corrupt or missing. The partition table or boot sector may be corrupt. The hard drive may have a mechanical or an electronic malfunction.

29. The SETUP configuration has been changed or lost.

30. 30 One or more of the key files on the hard drive may be corrupt or missing.

31. 31 The partition table or boot sector may be corrupt.

32. 32 The hard drive may have a mechanical or an electronic malfunction.

33. Copyright © 2007 Heathkit Company, Inc. All Rights Reserved PC Fundamentals End