dead acer e5-411

[mangtomas]

need help from the experts, I'm fixing a laptop Acer e5-411 mobo is da0zqmmb6f0 rev:f that is dead. anyone out there has an schematic diagram,that would be a big help thanks

[Djosla]

Re: dead acer e5-411

first check main power line,than look for 3,3 and 5v, and try to flash bios...

*****************

not sure if it is correct dump but you can try...
or post old bios dump so we can fix it...

[mangtomas]

Re: dead acer e5-411

its hard to determine where is the problem because I have no reference, can someone provide me a schematic diagram of it, thanks

[mangtomas]

Re: dead acer e5-411

I think its not bios because i cant even switch on the laptop so i think this might be a power problem

[dj_ricoh]

Re: dead acer e5-411

I think its not bios because i cant even switch on the laptop so i think this might be a power problem

dude BIOS makes the notebook dead. EVEN charging LED.

now check every component and coils for short to GROUND.

Inject voltage there if you find any. check and see if it gets hot.

If you find that HM Chipset gets hot , your done BGA work required.

start with bios and check with oscilloscope

[ivanxxx]

Re: dead acer e5-411

dude BIOS makes the notebook dead. EVEN charging LED.

now check every component and coils for short to GROUND.

Inject voltage there if you find any. check and see if it gets hot.

If you find that HM Chipset gets hot , your done BGA work required.

start with bios and check with oscilloscope

true...
first search sieguntur repair on youtube videos for better understanding of mobo architecture then you can start repairing

[mangtomas]

Re: dead acer e5-411

I think this is not a bios problem because there is no 19v in PQ26 which is n-channel power mosfet, there should be 19v in there I think but I only got 1.3v. If I don't have 19v in mosfet of 3valw and 5valw it will not generate 5valw and 3valw and 3valw is the supply voltage of bios for it to function so that's why I think its not a bios problem.

[meritosari]

Re: dead acer e5-411

More Info:
E5-411 Have bios chips low voltage just 1.8v, see datasheet winbond 25q64fws1g

[polytek]

Re: dead acer e5-411

More Info:
E5-411 Have bios chips low voltage just 1.8v, see datasheet winbond 25q64fws1g

agree with you meritosari, and most of them are (OTP)
see picture

[joselito]

Re: dead acer e5-411

HI.. Good Day. Anyone have schematic for this DA0ZQMMB6E0 Rev:E
have some burned capacitor in 19v line. need to check value and to trace other problem in affected area. thank you..

[joselito]

Re: Da0zqmmb6e0 rev:e

HERE is the picture of what i need. but if theres an schematic please..

[smali]

Re: Da0zqmmb6e0 rev:e

which laptop? brand and model

[joselito]

Re: Da0zqmmb6e0 rev:e

shorted 19v line. i traced that PC 112 is shorted. i need to now exact value of that caps..
thank you,

[meritosari]

Re: Da0zqmmb6e0 rev:e

Use Quanta ZHK as refer :http://www.s-manuals.com/motherboard/quanta_zhk

the caps value are:
- 0.1U/25V_4 (0402)
- 2200P/50V_4 (0402)

How could be?

Quanta ZHK and ZQM using same IC NB671L

you'll find it at your donor board.

[highpulse]

Re: Da0zqmmb6e0 rev:e

does capacitors ,. are not so needed o does part of the circuit , machine can live without them !!!

schematic and boardview

[joselito]

Re: Da0zqmmb6e0 rev:e

Thank you very much.. appreciated..
Laptop is fixed now.. thank you guys..

[joselito]

Re: Da0zqmmb6e0 rev:e

i already remove that so i confirmed PU6 is already shorted,
got lucky i have spare of that NB671LGQ Z NB671L AJPE.
thanks to all.

[ry x hunter]

E5-411 schematic

hi guys i need schematic diagram for my acer e5-411..thanks

[HarryPK]

Re: dead acer e5-411

Schematic please

[HarryPK]

Re: Da0zqmmb6e0 rev:e

does capacitors ,. are not so needed o does part of the circuit , machine can live without them !!!

schematic and boardview

Thanks