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Fujitsu Siemens D1837-A21 W26361-W84-X-02 - No Display - Schematic

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RepairGuy1010
RepairGuy1010 picture

Hi,
I have the motherboard W26361-W84-X-02 where it starts the CPU fan but don't show nothing at all. I measured all the voltages on the mosfets from a working one motherboard and the voltages on my faulty one and are quite similar (attached picture). I have changed and the bios chip from the good one on the faulty one and again I get black screen.
I would like to ask if there is any schematic for this mainboard or if you suggest me to check/measure something else?

 

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bruvura66
bruvura66 picture

Hi, did you try a new power supply? The capacitors of main board are ok ?

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RepairGuy1010
RepairGuy1010 picture

At the image on my first post all the capacitors that are in yellow circle were replaced. Also I tried a new power supply. Any ideas of what else to check?

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pumi
pumi picture

Hi!

 

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RepairGuy1010
RepairGuy1010 picture

Hi,
what means this circle in picture? This is the Northbridge Chipset SL7LX NG82915G.
Could you beleive that it is damaged (there is any way to check his functionality?) or needs reballing? 

https://www.cpu-world.com/sspec/SL/SL7LX.html

 

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