acer aspire v3-471g & 4730z turns off 1 sec

[crazypepe]

hi guys

as stated in title

both when turned on with pwr bttn, turns off almost instantly

5v,3.3v present
no component heating up
checked all coils to ground, no short

also can i please have a copy of the schematics for this model?
having a very hard time looking for it..

acer aspire v3-471g
mb: da0zqsmb8e0 rev:e
model: zqs

acer aspire 4730z
mb:jal90 la-4201p
rev:1.0


thanks in advance guys

[ala_borbe]

Re: acer aspire v3-471g & 4730z turns off 1 sec

here you go

[sanehdeep2012]

Re: acer aspire v3-471g & 4730z turns off 1 sec

thanks ala_borbe i also need this schematic,

thanks again for your support

[sasser]

Re: acer aspire v3-471g & 4730z turns off 1 sec

already solved? im also face with the same problem.5v 3v present PU9 Vin also 6v is correct. PL4 +3vpcu also correct but no display on internal or external lcd. the psu bench read 0.85++ current in.

[snsent]

Re: acer aspire v3-471g & 4730z turns off 1 sec

Try to change 2 units 220uf 6.3V caps with 2 units 330uf 2.5V caps.

[dj_ricoh]

Re: acer aspire v3-471g & 4730z turns off 1 sec

Never install lower voltage on caps.
Higher its ok but to much.

[chuvel]

Re: acer aspire v3-471g & 4730z turns off 1 sec

here you go

racias thx