Asus X54C (YA-4A 1 94V-0 K53C Mainboard Rev 2.1) - Identifying Burned Component for Replacement

Thank you for both answers, but before doing so I would like to point out that I have gone a bit and I have not detected one more defect ... now as I was looking for this driver I noticed the following loss, it is almost exactly on the other side of the burned transistor:



Was there an element there?

wentyl215 wrote:

Was there an element there?

No, it's a jumper.
Remove the driver because it looks suspicious, traverse these corroded capacitors.

We write, NONE SM
You have a plate in front of you> suck the app standing there and the meter set to ohms (with the power supply and Aku off) measure the transition from the IC to the pin of the missing element.

Then compare with the IC application

_________________
You do not have an MB sticker with the word style

Quote:

K54C REV: 3.0 60-N9TMB1500-A31

ASUS K54C REV 2.1 (69-N0MDM10B11P)
- BD82HM65
- KBC IT8572E

Asus A54C K54C X54C Motherboard
P / N N9TMB1100-B24
K54? Main Board Rev 2.1 (W / USB 3.0)

Before I remove the driver ... setting the meter to 20k I have such measurements:

Both marked in yellow are loaded up to about 19 and later the meter indicates 0L, if I do the opposite measurement, it both stands at 1.17

Nothing shows on the blue, vice versa too.

On pink it only shows on one page 17.40, on the contrary nothing.



I really do not know what's going on, but obviously something is not playing here, so before I remove the driver, maybe something here?

wentyl215 wrote:

Both marked in yellow are loaded up to about 19 and later the meter indicates 0L, if I do the opposite measurement, it both stands at 1.17
Nothing shows on the blue, vice versa too.
On pink it only shows on one page 17.40, on the contrary nothing.

Use some names, units, signs is a technical forum, no coloring pages.

I am sorry, not these ranges Measured capacity of capacitors with a 2u range:

Yellow bottom .097uF and upper .001uF
Blue .055uF
Pink .097uF

wentyl215 wrote:

Sorry, not these ranges Measured capacity of capacitors with 2u range:

Yellow bottom .097uF and upper .001uF
Blue .055uF
Pink .097uF

Measured desoldered from the plate?

On taken out:

Yellow top .700uF down .019uF
Blue .044uF
Pink .080uF

Unfortunately, this is nothing to reality.
What about this driver?

what are the values to be there? can he change? I will take the driver out around noon

Added after 1 [hour] 49 [minutes]:

I have a desoldered driver, how should I measure it? There according to the scheme given by the fox?

Syfu was not under the chip?
It's best to substitute the driver, you will not check it in a simple way.

There was no muck, everything looks OK. I have some old boards for parts, how to find the right one? So what about these capacitors?

wentyl215 wrote:

I have some old boards for parts, how to find the right one?

With the same designation.

wentyl215 wrote:

Well, what about these capacitors?

I do not have documentation so I do not know the value.

Designation DJ-DL and below Q1A - where will I find the correct values of the capacitors?

EDIT:
I do not have such a driver, so I think I will solder it and replace the capacitors, if I find what to have values

Richtek description

Quote:

DJ = - RT8202AGQW
DJ- - RT8202APQW

housing QFN-16

Lisek is no longer relevant because I do not have such a driver, I shoot capacitors, I only need their values ...

I was writing
Post # 33 19 Oct 2015 20:58

Quote:

We write, LACK SM
You have a plate in front of you> suck the app standing there and the meter set to ohms (with the power supply and Aku off) measure the transition from the IC to the pin of the missing element.

Then compare with the IC application
DJ-DL

Application eg. Link_ datasheet
or in many laptops from different manufacturers> the option of Search the forum
e.g. Wistron LA56
Asus 1201T
Asus K40AA rev.1.2 in app.