Question about Compaq Evo N1000C Notebook

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Ive used a generic dc adapter and it was charging

Went to the bathroom and my aunt said that the laptop started to spark and she pulled the plug out i then went to power it on and now it just flicker when i press the power button the light that represent the battery function flickers no dc power at all have i fried the mother board

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Possibly. You should always use the correct DC adapter. Try switching the adapter and then the battery if that does not help.

Posted on Aug 20, 2008

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Fault finding


What! !O_O!

For a statement, such as, "Motherboard not on", you would be stating the motherboard either does not receive power, or the motherboard does not use the received power.

Primer:
You press the Power On button. The first chipset to receive power is the BIOS chipset. The Basic Input/Output System program is initialized.

BIOS looks to see what devices are connected, does a Ram Memory count, turns the Processor (CPU) on; and hands the computer over to the Operating System. (In this case a version of Microsoft Windows)

If the statement is the motherboard is not turning on, you are in effect stating the BIOS chipset is Not receiving power.

Diagnoses must start from the AC adapter (Charger) You need to know if the AC adapter is putting out the correct Voltage. Also while testing have an assistant, gently wiggle the cable FROM AC adapter TO laptop; and power cord TO AC adapter. Any fluctuation in the reading, means a broken wire.

AC adapter proves to be good, the diagnoses goes to the DC Power Jack. The DC Power Jack is the jack on the laptop, that the AC adapter plugs into. (DC_IN)

AC adapter removed, Battery removed; a small instrument is used to see if you can gently move the DC Power Jack. ANY perceptible movement means a bad DC Power Jack -> Replace.

DC Power Jack checks out OK, then the problem will most likely be the Power MOSFET's on the motherboard. They determine if the Battery is to receive a trickle charge, or full charge. Also determines if the laptop is to run off of the Battery, or just the AC adapter.

Using the HP Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's; as an example,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

I can give a lot more, than the generic information above, if I had the Model Number of the Acer laptop. This is on the Bottom of the laptop. Post back in a Comment.

Regards,
joecoolvette

Apr 23, 2013 | Acer PC Laptops

Tip

How to troubleshoot your laptop at start


When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead. What you can do in this case?
1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.
OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.
If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack.

on Mar 27, 2010 | PC Laptops

1 Answer

Plugged in and not charging


1) Use a multimeter, check the AC adapter (Charger) for power.
Make sure it is putting out the required voltage.

Have an assistant gently wiggle the cable FROM AC adapter TO laptop. See if there is an intermittent reading on the multimeter.

Have an assistant gently wiggle the power cord.

An intermittent reading on the multimeter indicates a broken wire.
Power cord is bad? Replace cord.
Cable from AC adapter to laptop is bad? Replace AC adapter.

If you have posted the laptop manufacturer NAME and MODEL NUMBER, I could have given you more than generic information.

Model Number is in the Bottom of the laptop. Post back in a Comment.

AC adapter works OK?

Check the DC Power Jack.
The DC Power Jack is the jack on the laptop, that the AC adapter plugs into.

DC Power Jack checks OK, this is your problem,

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

Regards,
joecoolvette

Jan 31, 2013 | PC Laptops

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

2 months ago ive bought new charger...cause there was a fault with my previous one. It might also be a socket on laptop, so ive fixed both of it!but in the recent time,something went wrong...my charger...


Turn everything off. Take off the battery. Connect the ac adapter and turn on your computer. If it works with the ac adapter connected and your battery off then you have a defective battery.

If it does not work then it's either your ac adapter or your dc jack inside your computer. Try a different ac adapter at the store you bought the battery and you'll know if your adapter is bad. If it works with another adapter then exchange the adapter again (I know, I know, I've been there). If it does not work with another adapter then you're back to the dc jack but at least you'll know for sure.

Make sure that whoever is replacing the dc jack is good at soldering and replaces it not just solders the same one back on. Don't forget the shield to the dc jack. Good luck!

Oct 16, 2010 | PC Laptops

2 Answers

Dell 2650 DC wont work


make sure the charger you purchased has the correct voltage out and amperage(in millivolts) as requested by the laptop computer, if not you risk the chance of damaging your laptop. although they fit in the power plug, it does not mean theyre compatible. The specs should be located at the bottom of the laptop or inside the battery bay.

Apr 01, 2010 | PC Laptops

2 Answers

Battery wont change


A problem is just like a mountain. You don't jump over the mountain, you climb it in steps, one step at a time.

1.How old is the battery? 1 to 2 years old, you can expect it to be at the end of it's Life Cycle. Batteries are rated in so many hours of usage.
Best bet is to let the battery charge 24 hours, then try it.

Would be nice if you someone else that has an Inspiron 1525, and they would try to charge your battery. If it doesn't charge up, you would know it's the battery. If it does charge up you can move on down the charging system, to try to find the problem.

2.AC adapter, (Charger) If you have a multimeter, set it to the 50 volt DC scale.
Laptop and desktop computers use DC current. (Direct Current) Your house, for example, uses AC current, (Alternating Current)
AC is converted to DC by the AC adapter, (Charger)

An example of DC current are flashlight batteries, and your laptop battery.
DC current has a Positive pole, and a Negative pole.
The center pin of the plug of your AC adapter is the Positive pole. Any of the four outside pins on the plug, are Negative.
The Red, (Positive), probe of the multimeter goes to the center pin. The Black, (Negative), probe goes to any of the outside four pins on that plug.
Example of a DC Power Jack, for the Dell Inspiron 1500 Series of laptops, 1525 and 1526, (This is the jack inside your laptop, where you plug the AC adapter into),
http://www.megaemarket.com/dc-power-jack-for-dell-inspiron-150150015011505.html

3.It may be that DC Power Jack itself is bad, or one of the solder connections is cracked. It's hard to see it clearly on the link I provided, (So I Right-clicked on it, Save Image As, and put it right in my My Pictures folder. Then I magnified it), but in the photo you will see some metal pins sticking out of the rectangular body.

The metal pins are sticking up. In reality those pins go down, when the jack is mounted on the motherboard. They go through the motherboard, via holes, and are soldered on the other side.
It is these solder joints that may crack, is what I'm referring to.

Solution to 1?
Obviously buy a new battery.

Solution to 2?
If your multimeter findings show lower voltage than needed, it's time to buy a new AC adapter. They have generic ones that can be used on a variety of laptops. The voltage will be stated on the top of the AC adapter.
Example: 19.2V-1.0A
That's 19.2 Volts at 1 AMP.

It may just be the plug end on the AC adapter itself. The plug end that goes into the DC Power Jack, on your Inspiron laptop.

Solution to 3?
Unless you are a skilled Electronics Technician, and have Excellent de-soldering/soldering skills, I advise taking it to a computer repair shop. It may not just be cracked solder joints. The DC Power Jack may need to be replaced. Maybe the motherboard is one of a bad design, and where the DC Power Jack attaches to it, has cracked.

Jul 25, 2009 | Dell Inspiron 1525 Notebook

1 Answer

No power at all for my Dell Latitude D505


Sounds Like From Your Description That You Need Your DC Jack Repaired/Replaced..

THe DC Jack Is the Port where Your AC Adapter Plug Plugs into on the laptop.... THis can be proprietary or non proprietary.... But Either way, the Old Faulty Jack Needs To Be Desoldered and Removed, THe Board Cleaned and a New DC Jack Soldered On.. You Will Then Be able To Power On Laptop With AC Charger and Will again Be Able To CHarge The Battery..

Nov 19, 2008 | Dell Latitude D505 Notebook

1 Answer

[[ACER WONT TURN ON]]


You might of fried the whole motherboard when it sparked. Check if there is a fuse. Bridge the gap, and it should turn on. If not PULL THE PLUG.its something else that went wrong.If you don't, it smells really bad. Ive learn't from experience...

Jul 28, 2008 | Acer TravelMate 2300 Notebook

1 Answer

Compaq Presario 1200 won't charge battery


dear N9YK

you can follow this

If you have a loose connection where you plug in the power on your laptop, or it works intermittently, you could have a bad dc jack. Symptoms
  • Move the power plug and the laptop loses connection
  • Broken or cracked dc jack
  • Laptop won't charge but worked on battery
  • Power LED and battery LED flicker when the adapter tip is moved
  • Battery won't charge
  • Sparks come out the back of the laptop
Why does this happen?
  • Flaw in manufacturer designs
  • Use of universal or non-original ac adapter
  • Lots of plugging and unplugging of the ac adapter
  • Tripping on or pulling the ac adapter cord
or you can check your dc amper in your adaptor

oke



thx

cropp

Mar 16, 2008 | Compaq Presario 1200 Notebook

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