Sunday, 28 October 2012

PARTS OF A LAPTOP!

If you are keen to know what are the major components present in the laptop , then you've arrived at the right place. Just have a look at the list below:
  1. MOTHERBOARD
  2. CPU (CENTRAL PROCESSING UNIT)
  3. RAM (RANDOM ACCESS MEMORY)
  4. HARD DISK
  5. DVD DRIVER (or) BLUE RAY DISK
  6. BATTERY
  7. DISPLAY
  8. KEYBOARD
  9. MOUSE.
READ OUR OTHER POSTS TO KNOW ABOUT THE OTHER SMALL COMPONENTS ....

LAB COMPONENTS NEEDED FOR LAPTOP


If you want to set up your own workshop at your home for repairing laptops, these are the things you need:
  1. SMD WORKSTATION or BLOWER
  2. MICROSOLDERING
  3. SOLDERON
  4. LENS LAMP
  5. TWEASER
  6. FLUX
  7. LEAD (1mm & 0.4mm)
  8. CUTTING PLIER
  9. NOSE CUTTER
  10. SLEEVE CUTTER
  11. DRY SOLDERING PUMP
  12. WIG
  13. SCREW DRIVER
  14. MULTIMETER
  15. AMMETER
  16. ELIMINATOR
  17. BRUSH
  18. BLADE
  19. IPA (ISO PROPYL ALCOHOL) SOLUTION
  20. COTTON
  21. RECTANGULAR CHISEL
  22. JUMPER WIRE

Saturday, 27 October 2012

COMMON FAULTS IN MONITORS !

PROBLEM 1: TFT DEAD
  If the TFT is dead then check whether the fuse is damaged.
        1.1 If the fuse is not damaged then you have to check the following components in order :
      • Switching Transistor
      • Switching IC's
      • Filter capacitor
      • Primary section resistor open
      • Primary section diode short
      • Secondary diode short
      • Inverter power chip fault
      • Invertor on/off control transistor
        1.2 If the fuse is damaged :
      •  Then the circuit is open, so change it or repair

HOW TO IDENTIFY A FAULT IN A LAPTOP?

Once you are sure that there is a fault in the hardware components of a laptop, you can check for two things at a glance:
                      1. Whether the capacitor is puffed
                      2. Resistor has been burnt
Just take a plain look at the circuit board and try to identify these faults. If present, just mention that this may be the problem and save your money. Many are trying to cheat for even small faults. You ll be charged for Rs. 1500. just for removing the dust, but the bill might say some components mixed with alphabets and numbers where each costs around 100s. In further posts you'll get information about general faults and solutions.



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