Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

[lorins_core]

Good Day to all Forum mate and To all Expert here

I Have Sony VAIO PCG-7D2L notebook no Power. no indicating light.
i check the Power Adapter or Adaptor is it ok and i Change a New Good one and tested using in Tehnical Service. Same as again No power.

I Check the Power Switch . the power Switch no Problem.


any one Here in counter or have experiences repair in This Unit Sony VAIO PCG-7D2L notebook... would you help me to Fix this....

[lorins_core]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

also the Unit Have no Repair Before it is So Fresh... im the First one to opened this Laptop

History; the Costumer told me she used this one day after shutdown in windows. 1 day not use then she try to press the power. the laptop can't turn On...

[selldoor]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

Post a clear, in focus, well lit (No Flash) picture of the area of the motherboard around the
power socket.

[lorins_core]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

here's the Picture I try to Check a PQ1(4835B)mosfet it is a Short in Source to Drain?
i already replace a same parts but same as Problem. no light indicating in Power or battery charging indicate.




do You Have A Schematic Diagram? can you give me
1P-0056100-8010
MS03-M/B REV:1. 0
MBX-143

first time encountered this problem. if i fix this promise i shared here...

[lorins_core]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

i dont no how to check the another Part were location and where...

[dj_ricoh]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

my opinion is that you must remove all ribbons and see the continuity for the switch power board.
Second: check the power button and see if you got any voltage there. 3.3v most of the Cases.
Plzz find a better camera and make a macro picture near the power supply jack so we can see the 8 legs chips.
p.s. when you check a mosfet before you remove it , remove the cpu then check again.
the cpu in most of the cases make the fet stay in short

[jeckmike]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

I have the same problem with Lorins_core
could any one there could help us...........

[lefos]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

Hello,

Once I had the same problem and it turned out it was from a shorted capacitor near the usb ports if I remember right.
Try to measure there and I hope that it helped you.

[spidey]

Re: Sony VAIO PCG-7D2L notebook. Very Hard to Trace...

schematic ..