DAOR75MB6CO REV:C Model: R75

[goodguy91]

Anyone have schematics and boardview for this?

DAOR75MB6CO REV:C Model: R75 EC: ITE8528E

water dmg, No power, dc jack light flashes very quick 0.1second orange when plugged , only 1.5v to bios chip, 1.5v to power button, 1v-1.5v to battery pins. Tried already:

-check for shorts
-removed from board and check mosfets pq28 pq29 pq40 pq42 pq41 pq39 pq9 pq8 pq18 all ok

[goodguy91]

Re: DAOR75MB6CO REV:C Model: R75

found schematic , still problems.. ec it8528 getting 0v on pin 26 (vcc) what should i measure?

[goodguy91]

Re: DAOR75MB6CO REV:C Model: R75

found chargr ic bq24728 (marking on chip bq728) defective, do i need new replacement ic or are there other compatible for this one?

[TossDon]

Re: DAOR75MB6CO REV:C Model: R75

Post some pictures of water damaged location and before you proceed replacing components, clean up the board thoroughly(with warm water and dish soap), let it dry well and identify or isolate all the shorts as much as you can; if you don't, any replaced parts will fry. Post your progress.
Good luck

[goodguy91]

Re: DAOR75MB6CO REV:C Model: R75

sadly previous owner already clean it with alcohol so there was no visible signs of liquid damage on the board when i got it, i also ultrasonic it afterwards.

Didnt find any shorts from charger IC pads after i lift it but it gave no voltage to anywhere, only had vcc 19.5v

[menshawy]

Re: DAOR75MB6CO REV:C Model: R75

thanks

[mirandowebs]

Re: DAOR75MB6CO REV:C Model: R75

Thanks!

[islammostafa.me19]

Re: DAOR75MB6CO REV:C Model: R75

good man thank you

[luisfm2]

Re: DAOR75MB6CO REV:C Model: R75

Thanks for schamatic.

[Aziz aj]

my board problem is black screen kb output ok display volt 19v present other volt missing i am cannot find lvds ic give me location thic ic