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Notebooks (Laptops)

Latitudes E7240 laptop the laptop does not turn on

J0s3
J0s3
2
hace 5 años
hace 5 años
Hi, I have a laptop of latitudes e7240 and the problem is that my laptop stopped turning on and when I connect the charger, the light that it has turns off and does not charge the battery or anything I already tried the charger on another laptop and it works clearly that I think the problem is in the laptop and dismantle and check the motherboard and seve all good and does not stink burned I hope you can help me thanks
Israel Ps
hace 5 años

Check the external ones if you already disassembled it, disconnect everything except the fan and turn it on. You connect everything step by step and you will realize where the short one fits or you fix the piece to me it happened to me and it was the same fan I changed it and everything went perfect

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Israel Ps
hace 5 años

most likely, so I read that your charging center is the one that has a Czech conflict with a millimeter the continuity and the voltage that passes

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J0s3
J0s3
2
hace 5 años

I already said everything you told me and I still don't ASE anything

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Ivaneltalivan09
hace 5 años
hace 5 años
Have you disconnected the battery to discard a short in the battery? if so, the problem may be in the center of charge of the lap. For what you say when the charger LED goes out, it means that there is a short so it is protected and turned off.
J0s3
J0s3
2
hace 5 años

Disconnect everything and nothing at all

Responder
Ivaneltalivan09
hace 5 años

then you would have to start looking for a short fet or a diode that was damaged in the center of charge of the lap with a multimeter

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mac22esperando
hace 5 años
hace 5 años
Locate the mosfet PQ4 transistor and we continue.
mac22esperando
hace 5 años

J0s3 what did you do then to solve it?

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E1643L
E1643L
149
hace 5 años
hace 5 años
is the charger
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