Question about Acer Aspire 5500 5570-4421 Laptop

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Aspire 5500 power problems . -

XP pro - service pack 3 on system.
DC dominant - usually fail to switch to AC when battery runs down.
Appears conflict between Acer power management and XP or 3.
when reset on AC power epm runs CPU at 99% slowing system down.( hence hot)
Nothing in help section on Acer power page etc and little in their manual.

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There has been many problems with the svc pck 3. Mostly consisting of software conflicts that weren't there before the update. Uninstall svc pck 3 and see if that cures it.

Posted on Jun 19, 2008

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Acer 5570z no lites will not power on


Knowing that the new AC adapter (power supply), is putting out 19 to 20.5 Volts (DC), then the problem needs to be diagnosed further.

[ AC adapter is checked with multimeter. Function knob set to DC Voltage. (Dotted line over a solid line) Center hole in plug for AC adapter, that goes to laptop, is the Positive connection. (Red probe lead of multimeter touches)

Outside metal shell of plug is Negative. (Black probe lead of multimeter touches) An economical multimeter can be purchased for around $5 to $12. A multitude of stores carry them. An auto parts store is but one example. Analog, or digital is fine]

The jack in the laptop, that the plug for the AC adapter (power supply), plugs into, is the DC Power Jack.

With many DC Power Jack's, the jack is soldered directly to the motherboard.

Not so with the Acer Aspire 5570z series of Notebook PC's.
The DC Power Jack is connected to a cable of wires, which in turn is connected to the motherboard.
DC Power Jack Harness.

Replacement, is disassembling the laptop down to the DC Power Jack harness, unplugging it's cable's connector, and plugging in a new DC Power Jack harness.

The Bottom Case holds the DC Power Jack in place. (There is a slot in the side of the case it sits in)

Battery removed use an object to see if you can wiggle the Center Pin around. (Pencil? Or C-a-r-e-f-u-l-l-y, a flat tip Jewelers screwdriver? )

Also see if the rest of the DC Power jack, that you can see, will move around.

A-N-Y perceptible movement means a problem with the DC Power Jack.
It would also be best to go further, disassemble down, and remove the DC Power Jack Harness, even if no movement is found.

Perform a Continuity Check with a multimeter. Check each wire in the harness to make sure they are good.


No problem found with the DC Power Jack?
Then the problem is a power sensor chipset, or chipsets, on the motherboard. This part of the laptop IS the power supply.
The AC adapter is just part of the power supply.

If this is found to be the problem, motherboard replacement is the viable solution.

[ Chip and Chipset are slang terms to denote I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_Circuit

The power supply (Sensor chipset/s) senses whether the Battery needs a charge. Full or just trickle. It also senses when the laptop is to just run off of the AC adapter, and not the Battery, or Battery, and not the AC adapter.
{Plus a few other functions}

Here is the link to the Service Manual, (Free), for the Acer Aspire 5570 series of Notebook PC's,

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Go to the second Aspire heading. The one that begins with Aspire 1200
Go down to the 8th line, and across to 5570. Left-click on 5570
This is a PDF file. May take up to 30 seconds after you click, before the first page comes up.

1) Use an ESD wrist strap. Connect it's alligator clip to a good ground source. (Electro Static Discharge. I connect to an unpainted surface, of the metal frame of an open empty desktop computer case)

Average cost is around $3 to $6.
One example of an ESD wrist strap,

http://www.radioshack.com/product/index.jsp?productId=2103245

2) Use a multi-compartment container for the various screws you will remove.
Label each compartment for the area the screw/s come out of.
If no multi-compartment container is available, substitute with a clean egg carton.
Label each egg holder.
(Or double-sided tape, and label the tape)

There are screws which look VERY similar to others.
Do NOT mix them up.

3) Make a record as you disassemble. Make notes, drawings, and use a digital camera, or video cam, with good lighting.

Nice to have a record to refer back to, in case you are interrupted.
Also nice to have a Personal record made by you, along with the Service Manual

Plus,

http://www.youtube.com/watch?v=CI_PC4IPznQ


For additional questions please post in a Comment.

Regards,
joecoolvette

Nov 27, 2011 | Acer Aspire 5500 5570-2609 Laptop

1 Answer

My sons power pack died leaving laptop with dead battery. small light flashing orange at the front .i bought a replacement power pack making sure it was for his model.plugged it in and nothing it wont...


You may have a DC connector problem:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.

If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it

May 25, 2011 | Advent 4211c Notebook

1 Answer

When you turn the laptop on it turns off with 30 - 60 secs.


You may have a DC connector problem:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.

If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it

Feb 06, 2011 | Acer Aspire 5735 Notebook

1 Answer

My laptop battery i guess hit critical stage but now the system wont work with ac power


DC connector problem:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.

If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it

Jan 26, 2011 | Acer Aspire 7520-5185 Laptop

1 Answer

My toshiba satellite pro doesn't work , even with charger in , it doesn't turn on , its like all the power is gone :o ?


You may have a bad DC connection:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning



If your laptop is out of warranty, then you can fix the problem by resoldering DC-IN jack on the system board. If it

Dec 16, 2010 | Toshiba Satellite A60 Notebook

1 Answer

I have ac adapter plugged into the wall, and into the computer, the charge pack light is green, the battery is in the computer and the computer won't turn on at all


You probably have a bad or loose DC jack on the laptop:



Problem symptoms:

  1. Laptop randomly shuts down without any warning.
  2. Power LED and battery charge LED start flickering when you wiggle the power cord or the AC adapter tip on the back or your laptop.
  3. The battery will not get charged.
  4. When you plug AC adapter, the laptop appears to be dead and there is no LED activity at all (DC-IN jack on the system board is broken).


http://www.insidemylaptop.com/laptop-dc-power-jack-repair-techniques/

Nov 30, 2010 | Gateway SL1450-30145063 Notebook

1 Answer

Power cord attachment into the back of computer seems worn, it wants to run off battery instead of recharging through power supply


Either Have A Failing AC Adapter, Or A Failing DC Jack
you can test the AC Adapter using a multimeter (available at any home improvement center for $6)..
The DC Jack Would Need To Physically Be Checked To See If It's Faulty... which would intail removal of all parts down to the motherboard and visually inspect the DC Jack (the port where the Charger Cord Plugs into)



Remove The Battery... Plug AC Adapter Into Laptop.. Attempt To Power On....

Nov 15, 2009 | Acer Aspire 5100 Notebook

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