Fried MOBO
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Thread: Fried MOBO

  1. January 29th, 2011, 10:46 AM #1
    popman
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    Fried MOBO

    Friend asked me to look at it but I think It's obvious. He had an older Sony Vaio using a universal ps with a switch on the side that someone (his child maybe or him) changed the voltage from 19v to 24v and it fried something. I am guessing the motherboard but just wanted to checkin with the experts here to confirm it. If you know anything different let me know.

    thanks in advance
    Break it, then fix it!!
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  2. January 29th, 2011, 11:12 AM #2
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    It's just possible that it might have only killed the battery charging circuitry. Does anything happen at all when it is powered on?
    Nick.
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  3. January 29th, 2011, 11:30 AM #3
    popman
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    Nothing at all happens either with or with out the battery and I tried another ps too
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  4. January 29th, 2011, 11:35 AM #4
    popman
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    I also did some checking and found this PCG-FX220 has a charging board but I have no way to check it out
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  6. January 29th, 2011, 12:06 PM #5
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    In that case, it does sound as if the mobo is dead
    Nick.
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  7. February 1st, 2011, 11:20 AM #6
    popman
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    I let the laptop sit for a couple days and low and behold it fired up and reboots consistanly! So now I see that it is stuck in a 3% remaining charging mode but the battery is not really charging at all. New battery too. Is that a hardware thing or a software thing? How do you test. As I said before there is a daughterboard that is for charging too.
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  8. February 1st, 2011, 08:18 PM #7
    Train
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    Use a multimeter and check the output voltage of the AC adapter.
    That universal could well be going bad.
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  9. February 8th, 2011, 09:58 AM #8
    popman
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    I checked the voltage an it is right on the money. I also looked to see if the jack was loose and it appears to be ok too.
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  11. February 8th, 2011, 11:00 AM #9
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    Will it boot into Safe Mode and stay up, or does it reboot constantly there too?
    Nick.
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  12. February 8th, 2011, 11:20 AM #10
    popman
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    I must have typoed..it boots up and stays on ok. Not a boot problem a charging problem. It does boot to safe mode. BTW it has windows ME which I have tried to upgrade it to Win2K and XP both but this stupid thing wont have any of it. About to give it back and tell him to toss it.
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  13. February 8th, 2011, 02:19 PM #11
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    If you want to keep that unit, I'd replace the battery and the charger with new ones from Sony. That would probably cost more than the unit is worth though. Even though the battery is new, it may still be fried or bad, and the charger is suspect also.
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  14. February 8th, 2011, 03:50 PM #12
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    And that daughterboard might need replacing too
    Nick.
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  15. February 9th, 2011, 06:31 AM #13
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    Quote Originally Posted by popman View Post

    ... an older Sony Vaio ...
    What's the model number?
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