Acer Aspire E1-531

[Senior Eng]

the laptop is not turn on then I found PL1 is missing i brought new one it worked but it still show no display and turn of after a few seconds ... the voltage that's go to battery is 2v ... help me with this plz guys and show me the process for general lap repair.

[Senior Eng]

Re: Acer Aspire E1-531

Basic steps please ....

[cyberhack]

Re: Acer Aspire E1-531

Your knowledge ie can you use meter read diagrams

[Senior Eng]

Re: Acer Aspire E1-531

of course cyberhack ... i need to know where are the voltage reading points ... the voltage for charging battery ... CPU voltage and where to check it
thanks.

[dj_ricoh]

Re: Acer Aspire E1-531

of course cyberhack ... i need to know where are the voltage reading points ... the voltage for charging battery ... CPU voltage and where to check it
thanks.

yee yeee!

Basic POST :

Motherboard Model
Motherboard picture
what did you check ?

[Senior Eng]

Re: Acer Aspire E1-531

Motherboard Model
Motherboard picture
what did you check ?

ََQ5WV1 LA-7912P
there was no voltage ... I found PL1 was missing so there is voltage now.
I ask you what to check!
thanks for reply

[dj_ricoh]

Re: Acer Aspire E1-531

pictures! high Q

on page 45 right side bottom you got a list of Jumpers PJ1 - > PJ19 find every jumper and post back the voltages

[Senior Eng]

Re: Acer Aspire E1-531

on page 45 right side bottom you got a list of Jumpers PJ1 - > PJ19 find every jumper and post back the voltages

pj1 3v
pj2 5v
pj3 18
pj4 0v
pj5 0v
pj6 0v
pj7 0v
pj8 0v
pj9 0v
pj10
pj11 0v
j11 2v
pj12
pj13 0v
pj14 2v
pj15 2v
pj16
pj17
pj18
pj19 0v

[dj_ricoh]

Re: Acer Aspire E1-531

oii you got basic stuff!
change/reprogram bios and change bios battery!

do you know how to do reflow?

[Senior Eng]

Re: Acer Aspire E1-531

What to reflow ... BGA????
do I need programmer machine for reprogramming bios or just from DOS???
thanks alot.

[Ramee]

Re: Acer Aspire E1-531

You need machine for reflow/reball

http://www.aliexpress.com/item/Scotl...712640472.html

[ktmmotocross]

Re: Acer Aspire E1-531

or a 200W halogen light for 6eur, multimeter with thermo probe and a piece of bold paper on top

i was using it when i start to work on BGA. confirm it work without any problems.

[vinceroger69]

Re: Acer Aspire E1-531

or a 200W halogen light for 6eur, multimeter with thermo probe and a piece of bold paper on top

i was using it when i start to work on BGA. confirm it work without any problems.

can you explaine a bit more about this set up? have you got pictures of it in use.

[ktmmotocross]

Re: Acer Aspire E1-531

i dig out some old pictures.

i dont recommend using higher walues of lamp. 200W is fairly good enought to not damage the board or components on it. even chip is less heated than with station so it is safe for ati igp that like to die in 220+ celsius.


i see it on youtube video from some it guy from russia. he repaired almost everything with very shitty tools

[Senior Eng]

Re: Acer Aspire E1-531

Guys .. I found pc102 cap is shorted ... maybe it is the problem ??

[dj_ricoh]

Re: Acer Aspire E1-531

Guys .. I found pc102 cap is shorted ... maybe it is the problem ??

you have to take it down!

after check the pads then the capacitor!

[Senior Eng]

Re: Acer Aspire E1-531

after check the pads then the capacitor!

what you mean?

[dj_ricoh]

Re: Acer Aspire E1-531

when you check a capacitor ON the board and its got a short, the capacitor can be good but there is a short in that line with ground!

so take it down and see if the pads where capacitor is are shorted or just the capacitor.

[Senior Eng]

Re: Acer Aspire E1-531

I removed the cap ... the pads still reading 0.01 ohm ""shorted"" .... also PL14 reading short on board .... what to do ??

[ktmmotocross]

Re: Acer Aspire E1-531

remove pl14 and check which side is shorted