Question about Computers & Internet
When I plug my adapter (wall to adapter plug) green light on adapter is ON. When i connect the adapter wire to the laptop...the adapter light is FLASHING.. and NO POWER sign in the laptop...
no power at all in the laptop. Called ACER Tech and he said my ac adapter is broken or not working.
If anyone has / had same problem let me know...changing adapter solved or not.
The problem lies with failed smd capacitors grounding out underneath the motherboard on the same side of the board as the cpu heatsink. if you look at the board with the heatsink/fan in the top right hand corner- the culprit caps are in the bottom right hand region under some see through plastic. they are labeled pc144 and pc145.
Posted on Jul 28, 2009
I have the sam problem except I could smell electronics burnout which I discovered to be PR8 (I think is a 20 Ohm resister located close to where the 19V adaptor plugs onto the motherboard). There are a few fets and diodes and regs in this regin. If any of these are shorted then you will get thissort of prob as well. I will check out these caps though!!
Any one know the value of PR8 for sure??
Posted on Dec 26, 2010
Does your laptop power up on battery power? Have you removed all external devices (external monitor, keyboard, mouse, any USB device or expansion card, etc.)? Can you remove the CD/DVD drive? Do you feel comfortable removing the hard drive?
First remove everything you possibly can and see if the power adapter works. If it does, try adding and testing the items one by one to see which is causing the problem.
If the laptop will power up with battery and not with A/C adapter, it is very likely the adapter is the source of the problem.
Posted on Jan 06, 2009
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Posted on Jan 02, 2017
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