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schematic for sony laptop

Discussion in 'Electronic Repair' started by Max, Dec 26, 2005.

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  1. Max

    Max Guest

    Hi I have Sony PCG-FX150K laptop.The problem that it doesn't work from
    external power adapter.No any light on front and no charge
    battery.Another thing that laptop works good from fully charge
    battery.So I try to looking for schematic diagram or service manual to
    fix this problem.The motherboard inside is MBX-49.Is anyone know how to
    fix it or some information regarding this problem please let me know asap.
    Thank you.
     
  2. Guest

    Probably a bad ac power adapter. Have you checked the output voltages
    with your dmm on the power adapter plug yet?

    If that is good, then the only repair you could make would be to make
    sure the power plug on the motherboard is still good and does not have
    cracked solder connections.

    You won't get a schematic for a laptop motherboard at any price. The
    replacement part is the entire motherboard.

    A very experienced technician may be able to determine the extent of
    the power supply failures on the motherboard, but likely won't be able
    to repair anything beyond the most simple as the parts and schematic
    are not available.
     
  3. Max

    Max Guest

    i checked the power on motherboard after the smd fuse its good 19.5V and
    power won't go on battery charge circuit.
     
  4. JANA

    JANA Guest

    Sony or any of the manufactures would never sell or release any technical or
    service information for their computer products, to anyone who is not
    authorized by them. Even if you had the service information, there would be
    very little you can do on your own. It would be impossible to buy most of
    the parts that they are using on their boards. For troubleshooting, you
    would need the proper diagnostics setup and tools. You would need the proper
    solder work station to be able to change the components used on their
    boards.

    The only thing you have a chance to fix on the laptop is an obvious cold
    solder connection, or if you find a bad capacitor or simple component that
    you are able to decoder from the board, and solder in a new one.

    The authorized service reps for these computers do not have the circuit
    diagrams for these computers. The only technical information they have is a
    parts listing, and the procedures of how to change the parts. They do board
    level and module service only. Other than that, the service will fix a cold
    solder connection, or do a simple repair only.

    --

    JANA
    _____


    Hi I have Sony PCG-FX150K laptop.The problem that it doesn't work from
    external power adapter.No any light on front and no charge
    battery.Another thing that laptop works good from fully charge
    battery.So I try to looking for schematic diagram or service manual to
    fix this problem.The motherboard inside is MBX-49.Is anyone know how to
    fix it or some information regarding this problem please let me know asap.
    Thank you.
     
  5. Max

    Max Guest

    I have Sony service manual for this laptop but I thought that I should
    get schematic also.Thanks Jana for complete info.
     
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