Laptops Repair
  
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Common problems in laptops
 


LAPTOP REPAIR IN

Common problems in Sony laptops:
  • No power at all: Bad power chip, open circuit, short circuit, or loose connection.
    Symptoms:Nothing showing up when you press the power button

  • Power but no boot: Bad Input/Output controller chip, or bad video chip.
    Symptoms: The LED light Turing on but the computer still doesn't boot.

  • Shut down when move: Open circuit, loose connection, cold solder
    Symptoms: shut down when move the laptop

  • Broken power jack: Loose connection, cold solder, broken jack
    Symptoms: Need wiggle to connect, no power at all, intermittent power up

  • System hangs: Bad video chip, bad hard drive controller, bad CPU controller.
    Symptoms: System hangs when the windows starting, running for 5-10 minutes, or playing DVD

  • No charge: Bad charging chip, bad diodes, bad inductor, bad power jack, or open circuit
    Symptoms:Works with battery but it doesn't work with AC adapter, no power at all.

  • Graphic Problems: Bad video chip on the board or bad LCD
    Symptoms: Vertical/horizontal lines, distort color, flickering, intermittent booting

  • Over heat: Bad thermal chip, bad fan
    Symptoms: Restart unexpectedly, shut down randomly

  • Doesn't recognize devices: Loose connection, cold solder, bad input/output controller chip set
    Symptoms: doesn't recognize hard drive, USB ports, Digital card, CD ROM, PCMCIA, wireless card etc.

  • Cannot go to the internet: Bad Input/output controller, bad Ethernet chip and wireless card, loose connection, cold solder
    Symptoms: No internet signal(the page cannot be displaced)

  • Laptop has blue screen (pictures): bad hard drive, bad hard drive controller, bad input/output controller chip set.

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