Question about Gateway MX6931 Notebook

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I just replaced my ac adapter for my gateway lap top mx 6931 thinking that was the problem for why my screen flickers when i plug my ac adpater in to charge my battery. The battery wont charge unless i move the lap top around and etc. either Is my ac jack bad? or what else may be wrong

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Chances are the power jack in the laptop that is to blame. It's common for the solder connections holding the jack to the motherboard to break because of the power plug flexing. One way to check is to keep the laptop steady and wiggle the power plug. If the power indicator flickers, that's what's wrong.

The good news is that this is usually repairable. The bad news is that not all service shops are willing to get into this level of repair. The motherboard needs to be removed from the computer so the connections can be repaired. Sometimes the board needs some mechanical repair as well, and occasionally the only way to fix the trouble is to replace the board. Most shops want to replace the motherboard right off.

Call around to shops in your area and see who's willing to try soldering the board. That is usually all that's needed to get you going again.

Posted on Feb 02, 2010

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I BELIEVE so. Some laptops require the Battery to at least be in the laptop, whether they are good, or not.
Others will allow the laptop to run off of the AC adapter (Charger), with the Battery not installed.

Gateway Support > Gateway MD26 series of Notebook PC's > Main Support page,

http://support.gateway.com/us/en/product/default.aspx?tab=1&modelId=2364


Click on the - Support Documents - tab.
(Drivers / Applications / BIOS / Patches / Support Documents / etc)

Click on - Product Views - in the list.
Click on - Left View
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This is where the AC adapter (Charger) plugs in.

Examples, (Note US and Europe have different power plug ends),

http://www.batterytech.com/products.aspx?category=ac_adapter&brand=gateway&model=MD2614U&pid=AC-1990111

[The laptop uses DC electricity. Just like the Battery it has, and flashlight batteries. DC Voltage.
The AC adapter (Charger) converts your household, or business, electricity from AC to DC.
(19 Volts DC. In comparison two D cell flashlight batteries store 3 Volts DC ]

Regards,
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Do you have it plugged in? Also, do you know if the battery is charging? You may have a bad DC connection.

Problem symptoms:

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  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).

The DC connector needs to be resoldered on the system board.

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It really sounds like you have a short in the ac adapter. Laptops dim the backlight on the screen when on battery power and go full brightness when on AC. I think your adapter is going on and off. When it is on the screen is on full and when it goes off the screen dims down a bit. You could have a bad adapter, most likely, or a bad charging jack in your laptop. Check the adapter first, just use a multimeter set to voltage. Read lead goes to the center pin and black lead goes to the outside metal contact, you should get a reading of 18 to about 26 volts. Move the wire around near the plug that you are holding and keep checking the readout. I think you will find the voltage dropping as you move the wire.

I hope this helps, If so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com

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