No 5V found in this Circuit, Please help me.

[nazrul145]

Hi there, I have problem with this motherboard. This laptop have no power. I have check only 3.3v is present in P10 but 5V is no there in PL9. I check Pl9 to ground but no short found.
So I have replaced uP6182 with TPS51125. But 3v present and no 5V.
I also flash bios. But bad luck.
So i specially need your help. Please Suggest me how can i find the problem.
Schematic attached below.
I wait for your help.
Thanks advance

[Compute]

Re: No 5V found in this Circuit, Please help me.

Что на 1 и 6 выводе pu11?

[Compute]

Re: No 5V found in this Circuit, Please help me.

What is the voltage at the output 1 and 6 pu11?

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

Thank for response, Pu11 PIN 1=0V AND PIN6= 0.9V

[Compute]

Re: No 5V found in this Circuit, Please help me.

Проверь номиналы pr82,pr86 - должны быть 0 Ом, и pr197,pr198 - должны быть 100 кОм

[Compute]

Re: No 5V found in this Circuit, Please help me.

pin6= 0.9v

Должно тоже 0 быть...

[Compute]

Re: No 5V found in this Circuit, Please help me.

Check face values pr82, pr86 - should be 0 ohms, and pr197, pr198 - should be 100 kOhm

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

PR82 =0 ohm and pr86 blank pr197= 98.5 ohm pr198=101.2 ohm

[Compute]

Re: No 5V found in this Circuit, Please help me.

pr86 blank

Sorry, do not understand ...
On the PR86 does not show resistance

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

There is no resistor found , it is gap.

[Compute]

Re: No 5V found in this Circuit, Please help me.

Strangely, the scheme there should be a resistor, not to be confused with PJ11?
Take a picture of the place where there are PR86 ...

[Compute]

Re: No 5V found in this Circuit, Please help me.

pr197= 98.5 ohm pr198=101.2 ohm

Again it is written that in the scheme of these resistors to 100k, and you are on a 100 ohm
Scheme from that board?

[Compute]

Re: No 5V found in this Circuit, Please help me.

Need voltage PQ14
Drain
Source
Gate

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

Sorrry Pr198 and 197 are kohm.

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

Pq14?

[Compute]

Re: No 5V found in this Circuit, Please help me.

What's this ?

Need voltage PQ14
Drain
Source
Gate

[Compute]

Re: No 5V found in this Circuit, Please help me.

Pq14?

Yes

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

There is no PQ14.

[nazrul145]

Re: No 5V found in this Circuit, Please help me.

Sorry PQ14 gate=4.57v drain 0v and source connected with ground.

[Compute]

Re: No 5V found in this Circuit, Please help me.

Sorry PQ14 gate=4.57v drain 0v and source connected with ground.

Should be 0V