Q5WVH (LA-7912P) Acer aspire E1-531 No power on

robertevoula

hi all
acer aspire no power on on schematics PL5 is short on 1 PL8 is shortet too on 1
also PL18 is short all B+ are short
PQ1 DRAIN short .. is there a solution any help please.
thank you

RsM

Use Regulated (laboratory) PowerSupply to find Short. Up to 5A. And search heating components

robertevoula

no component heats up the B + is short i don't know how I don't know how to solve this problem
thank's for help

MSF113

RsM
Told for You: se Regulated (laboratory) PowerSupply to B+. Up to 5A. And search heating components

robertevoula

please give me more information

пожалуйста, дайте мне больше информации
---------- Добавлено спустя 33 минуты 51 секунду: ----------
thank you sir
i find that PD1 heating but there's no short there
i will change it ans see if short gone

MSF113

If You have short in B+ circuit this diode can heat

robertevoula

YES SIR
i have short in B+ and this diode heat what's the solution please ?

MSF113

AGAIN:
Use Regulated (laboratory) PowerSupply to B+. Up to 5A, 5V. And search heating components!
Don't connect laptop PSU when you did it

RsM

1)Set on Power Supply 5V
2) Set min current
3) Power Supply positive (red) probe connect to B+, negative (black) probe to gnd.
4) Increase current by 0.1A and at the same time search heating components by fingers of your second hand :-):

robertevoula

THANKS FOR YOUR SUGGESTIONS
i find that PC184 heat i change it and the short is gone
1000 thanks you are the best

RsM

Notebook now works or has another problem?

robertevoula

the problem is solved
and the laptop works very well

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