Question about Gateway MT6840 Notebook

1 Answer

Dead short on power jack

Plug it in and there is a dead shot happend after i pluged my battery in

Posted by on

  • get some May 23, 2009

    i knew its the traces are shorted because i renoved the jack from the motherboard and it was still shorted



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Gateway Master
  • 5,660 Answers

Should be battery first, Then AC adapter (Charger)

Dead short on DC Power Jack?
Are you aware of how a DC Power Jack is made, (Component structure), and how it attaches to the motherboard?

If not, allow me to explain. This is an example of an average DC Power Jack,

The outside housing of the DC Power Jack, is barely larger than the outside of the AC adapter (Charger) plug.
It's about a 1/4 inch wide, 3/8 inch inch tall, and 1/2 inch long.
The body is made of plastic.

The outside shell opening in the body is the Negative contact.
The pin in the center is the Positive contact.

Those flat metal prongs, or pins, you see in the photo, go down through the motherboard, are are soldered on the bottom side.
The photo of the jack is upside down, in relation to how the jack sits on the motherboard.

When the 'Charger' plug is plugged into the power jack, it can get bumped. A hard enough bump, or repetitious bumps can damage
the center pin mounting, break the outside metal shell loose, and/or break the plastic housing.

It can also break the solder joint/s for those flat metal pins.

AC adapter unplugged from the laptop, battery removed, see if you can take a pencil eraser, and move that middle pin around. You may see the entire jack move.

There is also a large number of laptops, made with a defective motherboard design. To explain, I'll have to give you a crude example.

Think of the laptop motherboard as being a 1 foot square. (It isn't. It's irregular shaped)
Now along the edge of the 1 foot square, attach a 2 inch square.
It's actually all one piece.

Due to accidental bumping of the 'Charger' plug while in the power jack, this 2 inch 'Peninsula' can break away from the main body of the motherboard. (1 foot square)

There are circuit traces on the motherboard. (Think of a circuit trace, as a Very, Flat, Thin, copper wire)
These circuit trace can become stretched by the cracking, or breaking away of the 2 inch 'Peninsula'. They can then be exposed to circuit traces they're not designed to touch. This can cause a direct short.

(Also, due to the bad design of these motherboards, the laptop user can be just using the 'Charger', in an everyday situation, and this 2 inch 'Peninsula' can break.
Just by plugging in, and unplugging)

Posted on Apr 23, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why wont it charge the battery when using the wall plug

the charger must be tested, if it not giving the out put voltage, you have to change it, check the connecting point for possible loose contact or corrosion inside the jack.,clean it.

Dec 30, 2015 | Panasonic HC-V100M Digital Camcorder -...

1 Answer

Power problem PAVILION zv5000 (AMD) sn:CND5190R9W.

Yes, I have found that the solder joints on connector terminal on the motherboard become unstable/dry/cracked after a period of time, t seems they are not strong enough to cope with constant movement of plug

Motherboard can be removed and joints on base of power adaptor connector on MB resoldered, once again restoring connectivity from power adaptor plug to mainboard.

Use a moderate temp soldering iron.and thin solder and redo solder joints on power adaptor socket.

Dec 04, 2007 | Computers & Internet

1 Answer

Dell xps-m1330 no power .no light

Power plug or power jack...

pull the battery out and retry with battery out,, pluged in,

If its not the power plug, power jack or bat., then the motherboard may be bad.

May 16, 2010 | Dell XPS M1330 Notebook

3 Answers

Will the aspire 5735 start up with a dead battery

A dead battery will usually stop a laptop from starting up. Remove the battery and try running from the power adaptor alone. If this works you can be sure the battery is dead.

Apr 10, 2010 | Acer Aspire 5735 Notebook

2 Answers

My ipod touch turns on and shows the apple sign and cuts right back off i pluged it up and it did the same thing and i went to i tunes and pluged it up and same thing happend

Hold the power button and home button for 10 seconds to ensure the device is off. Let go.

Hold the home button down, plug in the ipod to the computer, after the screen changes to the itunes plug screen, let go of the home button.

The ipod will now be in recovery mode, and you can attempt to perform a restore within itunes.

If the restore fails, and the ipod screen stays black, this means the battery is dead and must be replaced. If you replaced your battery and this still happens, then your logic board has gone bad.

Aug 19, 2009 | Apple iPod touch Second Gen (8 GB,...

2 Answers

Phone is dead! M7310

There is no power cord required for an M7310 set. The set gets all the power from the Nortel telephone system. Try plugging in your phone where another phone is active to ensure that your phone that you want to install is working. The phone flashes, then stops, then flashes, then stops... you just have to be patient when testing. Possible Troubles: -> It maybe the line cord, the cord that plugs in from the wall to the phone that can be damaged. -> the jack might be dead (wiring in the jack is pulled off) or inactive (there is no jumper from the office to the telephone system). -> the phone port from the telephone system might be dead.

Jun 06, 2009 | NorStar Meridian M7310 Phone

1 Answer

Dead short on power jack

Do you have a voltmeter to check the output of the charger?
If it's putting out the required am't of volts (usually about 18), then it's not your charger--it's the motherboard.
Or a shorted battery. One of the two.

May 21, 2009 | Gateway M6307 Notebook

2 Answers

Dead unit

My Quest2 has a short in it that drains the battery even when it is turned off. But the battery lasts normal 15 to 20 hours when fully charged and unit is on. Whenever the battery is completely dead, I have to place it on the charger for a hour or two before the unit will even start even though it is plugged plugged in. The battery can be replaced by the staff at batteries plus for under $60.00 

Oct 12, 2008 | Garmin Quest GPS Receiver

1 Answer

No power via batteries

The batteries are put in wrong, or there no good, or the dc jack in the back still has the plug in it for the ac adaptor. You see theres a small switch on the jack inside the unit that switches from the ac adaptor to the batteries, when the jack is iserted. Also if the plug is not pluged into the jack, then there could be a bad jack or a broken solder connection on the jack inside on the printed circiut board. good luck

Jul 03, 2006 | GPX TVB544 5 in. Portable Television

Not finding what you are looking for?
Gateway MT6840 Notebook Logo

722 people viewed this question

Ask a Question

Usually answered in minutes!

Top Gateway Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18394 Answers

Prashant M
Prashant M

Level 3 Expert

2260 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1066 Answers

Are you a Gateway Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides