Asus K73SV - Not powering on

[mahfooz]

Re: Asus K73SV - Not powering on

thanks

[angelicous]

Re: Asus K73SV - Not powering on

Is there anywhere i can get the schematics faster?

I would pay if needed...

[angelicous]

Re: Asus K73SV - Not powering on

No one?

Ok i need to solve this another way.

I have a defective mosfet, that has some writing on top, but i can't find anything about it to buy another one... How can i know what mosfet it is?

[trebo]

Re: Asus K73SV - Not powering on

tell us what"s on it, better still give us a close up picture
someone may know it

[angelicous]

Re: Asus K73SV - Not powering on

Ok so i've read some forums about identical problems, and a guy told me to replace the mosfet, and check the fuses. But now i have a doubt now...



Ok, one i've signed is the damaged mosfet that can't drain current and i think it's damaged.

The other one i allways thought it was a fuse... I thought that the blacks where resitors, the light browns where capacitors, and this really dark brown ones where fuses. I am a newbie keep that in mind, and i am learning.

But someone told me that the darker one is a capacitor and not a fuse. Ok so, is this really a capacitor? what about the lighter brown one on the left of it? Is it a fuse?

[trebo]

Re: Asus K73SV - Not powering on

those are caps, dark and light brown
don't see any fuses
we cant make out whats on that mosfet to identify it, can you tell us what is printed on it

[angelicous]

Re: Asus K73SV - Not powering on

Yes i can. I removed it and confirmed that i don't have readings between the source and the drain pins. Any readings what so ever.

The mosfet has a kind of H logo (it could be an M) and on the side it has this printed:
B07
P03
CDB0623

This is what i understand but the letters are very small

[angelicous]

Re: Asus K73SV - Not powering on

It's exacly like this one on the logo and the position of the letters, but it says what i have told above

[trebo]

Re: Asus K73SV - Not powering on

here is a link to buying it, http://www.aliexpress.com/b20p03_price.html

[angelicous]

Re: Asus K73SV - Not powering on

No that's a B20p03...

Mine was a B07P03. I can't find it on ebay or aliexpress :/

[trebo]

Re: Asus K73SV - Not powering on

sorry about that, here is a link to datasheet, http://pdf1.alldatasheet.com/datashe...TB07P03Q8.html

[angelicous]

Re: Asus K73SV - Not powering on

So it doesn't matter the letters? The only thing important is the P03, right?

[dellxps15]

Re: Asus K73SV - Not powering on

do you have a chip RT8206 ?

check voltage on pin 6. and all other pins (warning not to short pins... eachother)

edit: is asus K753sv or just Asus K53sv ? i think u readed it wrong..

[angelicous]

Re: Asus K73SV - Not powering on

I think you read it wrong dell

Asus k73SV. There is no 5 in there.

Yes i have the RT8206 chip in here, but i think my probes are a litle big for this chip... I could short the pins

[trebo]

Re: Asus K73SV - Not powering on

found this one from china, http://www.ebay.co.uk/itm/1PCS-New-C...item53f9899fb6

[angelicous]

Re: Asus K73SV - Not powering on

Guys, my question is, the mosfet on my board, says b07 p03. This one you found from china says b20 pc03. Is it the same one or can it be replaced for that one?

[dellxps15]

Re: Asus K73SV - Not powering on

lol read about a k53sv and thouth ur was 53sv too

get a good probe as that chip should be the 3.3 and 5volt supplier. check pin 6 if Vin 16-19v is present.

[angelicous]

Re: Asus K73SV - Not powering on

How do i check with the probe only the Volt on that pin?

Vin and GND for example? Or with VOUT 1 and VOUT2?

EDIT:
I removed the damaged mosfet... should i put it back in for testing?

[dellxps15]

Re: Asus K73SV - Not powering on

How do i check with the probe only the Volt on that pin?

Vin and GND for example? Or with VOUT 1 and VOUT2?

EDIT:
I removed the damaged mosfet... should i put it back in for testing?

put it back, black probe on some metal part (usb metal for example) multimeter set to dc 20v and red probe on pin 6.

[angelicous]

Re: Asus K73SV - Not powering on

I have the damaged mosfet removed. No voltage is present on pin 6