emachines d440 ms2305 with several shortcut

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emachines d440 ms2305 with several shortcut

Postby restrax » Wed Aug 09, 2017 6:22 am

Hi I have this mb (48.4hd01.031) when I power it on the fan works for few seconds then the fan stop working with the power led still on and the fan never work again... of course with black screen and never sends any signal to an externar motitor through vga cable... and tried with another ram too. So all of it is not the problem.
I did a gpu reball everything was done correctly and the same falilure so I searched for sorcuts on the bottom of the gpu I found about 5 capacitors with shortcut (red circle). So the process is to find the source of the shorcuts by understanding and researching with the shematic mb. I dont know how to do that... or any other way to find the sortcuts please help.
Being more specific can someone teach me how to read and understand electronic shematics to find broken componentes. Sorry about my english,
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emachines d440 ms2305 with several shortcut

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Re: emachines d440 ms2305 with several shortcut

Postby matic_s » Wed Aug 09, 2017 7:04 am

Hello!

How many ohms to ground do you have on shorted capacitors?
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Re: emachines d440 ms2305 with several shortcut

Postby restrax » Wed Aug 09, 2017 4:54 pm

I dont know Ill be testing that as sonn as I can... but both sides of those caps are shorted to ground.
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Re: emachines d440 ms2305 with several shortcut

Postby restrax » Thu Aug 10, 2017 8:17 am

matic_s wrote:Hello!

How many ohms to ground do you have on shorted capacitors?


The marked ones are with 2.26 mohms
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Re: emachines d440 ms2305 with several shortcut

Postby restrax » Sun Aug 13, 2017 5:24 am

Thanks for your help nice page hahah
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Re: emachines d440 ms2305 with several shortcut

Postby matic_s » Sat Aug 19, 2017 8:06 pm

restrax wrote:The marked ones are with 2.26 mohms


2.26mΩ or 2.26Ω ??
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