Re: SONY VAIO PCG-31311M No power
Any one.....Please
slick
New Member
Last Activity: 05-31-2016, 03:25 AM
Joined: 06-23-2012
Location: Θεσσαλονίκη
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SONY VAIO PCG-31311M No power
Hallo all.
I have a sony vaio pcg-313111m with mbx-244 TUCANA m/b. The laptop has no power.
When I first open it I see that the U51 rt8223 was burn. I replace it and when I plug the power supply I have 10mA but still no power. I do some measurements: U51 pin16: 0.5V, U67 pin28: 19.28V, pin4: 19,28V, U65 pin1-4:19.25V, pin5-8: 0.7V.
I don't know where to look, if someone can help I will be grateful.
The schematic
Thanks in advance.... -
Re: Problem with Acer Aspire 5720
Last night i try to do what Joun suggest me but the laptop do nothing except the power led flashing when i push the power button.Leave a comment:
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Re: Problem with Acer Aspire 5720
I try without the ram and i use the same power brick to another laptop and seems to be OK....Leave a comment:
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Re: Problem with Acer Aspire 5720
I check with multimeter a few capacitors (on board) near CPU and RAM and there was sort circuit but i am not sure. Tomorow i will take them out of board and i will check them.
If any one know somthing more to do i will be greatfull.Leave a comment:
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Re: Problem with Acer Aspire 5720
I disasseble the laptop and i try to turn on only the motherboard with and without the display but nothing happens....Leave a comment:
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Problem with Acer Aspire 5720
Hallo,
i have a Acer Aspire 5720 Model:ICL50 with Motherboard: mbahe0200, when i push the power button the laptop starts for 5-7 sec. and then turn off, in this time i have no picture in the screen. Did any one know somthing about this problem?
Thanks in Advance. -
Re: New Members - please post your introductions here
Hallo, I am Isaias 33y old from Thessaloniki - Macedonia, Greece. I am dealing with computers as a hobby in the last 12 years and 2 years with electronics. In my attempt to do something more professional, trying to graduate from a school for electronics.
I ask your understanding for my bad English. I will do my best to be as understandable as possible.
Thanks!!!Last edited by slick; 07-02-2012, 11:01 PM.Leave a comment:
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