Acer 4743z power button problems with one second

[fardhan_rajab56]

hello
how are his best friend

I have a new problem.
acer 4743z not live
I press the on / off
handy with a time of 1 second and then turns off again

[Tuomo]

Re: Acer 4743z power button problems with one second

hello
how are his best friend

I have a new problem.
acer 4743z not live
I press the on / off
handy with a time of 1 second and then turns off again

Sounds like short circuit.

You need schematics and measure resistance to coils.

[Amraks]

Re: Acer 4743z power button problems with one second

have you had this laptop apart?

sometimes you need to re coat the heat sink with heat sink gel.

I had a laptop doing this one.

[fddizon]

Re: Acer 4743z power button problems with one second

1 second then off is a no thermal issue... my opinion

[fardhan_rajab56]

Re: Acer 4743z power button problems with one second

1 second then off is a no thermal issue... my opinion

I think the problem may be found in IC U22 (ENE KB3930QF) A1

whether it can also happen that

[Francisco.s]

Re: Acer 4743z power button problems with one second

I think the problem may be found in IC U22 (ENE KB3930QF) A1

whether it can also happen that

Can you post the schematic or the code number of the motherboard?

[fardhan_rajab56]

Re: Acer 4743z power button problems with one second

Can you post the schematic or the code number of the motherboard?

sorry pal
I just come back online

I am posting some pictures that you requested
sorry if the picture is not good

[masud]

Re: Acer 4743z power button problems with one second

check the mosfets around the battery connector.

[Francisco.s]

Re: Acer 4743z power button problems with one second

sorry pal
I just come back online

I am posting some pictures that you requested
sorry if the picture is not good

In this link, you can know how to identify the motherboard, in order to obtain the right schematic for your motherboard.

http://laptoprepairegypt.com/blog/2012/11/27/test/

[fardhan_rajab56]

Re: Acer 4743z power button problems with one second

sorry pal
i just come back online

i am posting some pictures that you requested
sorry if the picture is not good

[fardhan_rajab56]

Re: Acer 4743z power button problems with one second

sorry pal
i just come back online

i am posting some pictures that you requested
sorry if the picture is not good

[Francisco.s]

Re: Acer 4743z power button problems with one second

[fardhan_rajab56]

Re: Acer 4743z power button problems with one second

ok
thank you Francisco.s
I have found the source

[java01ph]

Re: Acer 4743z power button problems with one second

what is the source of the problem sir? tnx