Asus S301 Schematic or boardview

[passete]

I'm searching for schematic or boardview for this motherboard :
asus s301la rev. 2.2
I have No Power and it doesn't charge the battery.
19V is present on the connector, measured on the mobo, but i have NO 5, 3 and 19V elsewhere.




I offer 30 euros for the one who help me solve this one

[JaroTech]

Re: Asus S301 Schematic or boardview

Hi, what is the number for the charging chip?

[passete]

Re: Asus S301 Schematic or boardview

Hi, what is the number for the charging chip?

Can you tell me where is located from the pictures above ?

[JaroTech]

Re: Asus S301 Schematic or boardview

On the top side, a little higher of the name S301LA MB MAIN BOARD on the right you have a 20 pins chip, what is the number of the chip?

Looking more closely, I think the charging chip is beside the LED5903, so give me the number of this chip.

[passete]

Re: Asus S301 Schematic or boardview

On the top side, a little higher of the name S301LA MB MAIN BOARD on the right you have a 20 pins chip, what is the number of the chip?

Looking more closely, I think the charging chip is beside the LED5903, so give me the number of this chip.

This one Buddy ?

[JaroTech]

Re: Asus S301 Schematic or boardview

This is not the charging chip, so give me the part numbers on the other chip, the first one with the 20 pins.

[passete]

Re: Asus S301 Schematic or boardview

Ok, i have posted the 2 remaining similar chips

[JaroTech]

Re: Asus S301 Schematic or boardview

No, they are the EC and the audio chips, on the top side, a little higher of the name S301LA MB MAIN BOARD on the right you have a 20 pins chip, maybe this is the one.

[JaroTech]

Re: Asus S301 Schematic or boardview

Can you give me a good picture of this area on the motherboard so I can see the numbers.

[ala_borbe]

Re: Asus S301 Schematic or boardview

sorry wrong thread

[passete]

Re: Asus S301 Schematic or boardview

Here we go, i see at least 2 more chips about the same size of this one !

[ridamouh159]

Re: Asus S301 Schematic or boardview

bq735

celui la est le circuit de charge
quel est le probleme
je ne peut exprimer en anglais malheuresement ni se discuter avec .

my english is bad

[passete]

Re: Asus S301 Schematic or boardview

Il y a pas de 5, 3 et 19 Volts, donc le pc ne reage pas.
Je offre 30 balles a celui la que arrive a trouver la solution

[ridamouh159]

Re: Asus S301 Schematic or boardview

sans shema c'est un peu difficile pour tomber sur le composant cosant le probleme .
dans votre cas veuillez indiquer le nom de circuit d'allimentation
tps-rtl -........
et indiquer les mesures de voltages sur toutes ces pieds .
et vous devez trouvez vin=19v
bonne chance

[ridamouh159]

Re: Asus S301 Schematic or boardview

veuillez indiquer sur la photo les mesures de voltage de toutes les pieds de circuit de charge bq735

et noter les noms des circuits sauf realteck and lan

[JaroTech]

Re: Asus S301 Schematic or boardview

Ok, we found the charging chip, BQ735, measure the voltage on the pin 20 on this chip.

[passete]

Re: Asus S301 Schematic or boardview

Ok, we found the charging chip, BQ735, measure the voltage on the pin 20 on this chip.

Sorry for the late reply Buddy.
Here what i measured, hoping that it was the good pin !

@ridamouh159, tout les Pins ? c'est presque mission impossible vu la taille de la puce.
Peu tu reduire un peu les pins svp, mdr.

[JaroTech]

Re: Asus S301 Schematic or boardview

You have the right pin and the charging chip is powered. Can you test the voltages with just the battery, it will be simpler for you to measure the voltages.

[passete]

Re: Asus S301 Schematic or boardview

You have the right pin and the charging chip is powered. Can you test the voltages with just the battery, it will be simpler for you to measure the voltages.

I have this Notebook since +6 months, battery is empty, and because it's a vivobook, i don't have any other asus laptop capable of charging this battery.
Which voltages to you want to be measured ?

[JaroTech]

Re: Asus S301 Schematic or boardview

Ok, I have to extrapolate from a schematic who don't belong for your motherboard. You should have 0V at pin 1, and what do you have at pin 4?