Acer Aspire V3-371

[lorins_core]

Hello there.

I need a Schematic Diagram For this Unit

MODEL: Acer Aspire V3-371-56LD
MOBO : VA30-HB MB13334-1


Problem: No power

1. I Check the Rail Of 19V have Supply
2. I Check the power Switch Ok.
3. I check the 5V ALW have
4. I Check The 3V or 3.3V ALW only 2.something

Any one can help me to Fix this. or if you have a Schematic Diagram. May I Copy Thanks

[dspok]

Re: Acer Aspire V3-371

replace collector cap if it is not generating correct 3.3v ALW

[JaroTech]

Re: Acer Aspire V3-371

I found this, I hope it will help you.

[lorins_core]

Re: Acer Aspire V3-371

replace collector cap if it is not generating correct 3.3v ALW

Thank Master I try it later and i re post it ok or not.

[lorins_core]

Re: Acer Aspire V3-371

I found this, I hope it will help you.

More Thanks Master. I try to view later and i re-post.

[lorins_core]

Re: Acer Aspire V3-371

hello to all

update on this unit:

I clean the mobo.

CHECK the Capcitor filter on Part of this PC4501 & PC4502 "no leak & no Shorted"

3.3V ALW mosfet Area PU4503 & PU4502 im compused for this? and why if inject (already plug the Supply Adapter) turn off.
have Supply out of 2V only @ 3.3v ALW- if i turn on the switch to power on. unit turn light indicator only on after off
checking the voltage on 3.3V ALW. have. but this Part no. PU4501 is heating up....


Any Advice

[lorins_core]

Re: Acer Aspire V3-371

Follow Up plsss

[lorins_core]

Re: Acer Aspire V3-371

Up please...

[vhn1998]

Re: Acer Aspire V3-371

check PU4501: pin 3: 3D3V_AUX_S5??? if <3v3. check RTC_RST#, SRTC_RST# . I think error rtc block in haswell(cpu). replace CPU

[shield0]

Re: Acer Aspire V3-371

Which one is the collector cap. I have a laptop with same problem, there is 2.3v instead of 3.3 on power button. Thank you in advance.

[Cari]

Re: Acer Aspire V3-371

Same case, PU4501 still heating up, was it the CPU?