Question about Gateway MX6445 Notebook

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Need a procedure to repair/replace the 19 Volt D.C. power input connection on my Gateway MX6455 laptop computer. It is not completing circuitry with my Targus power adapter. After all screws are out - how do I release the bottom cover? Is there a hidden screw? Thank you, Mac

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Hi
I did this a while ago for a similar model and this is the link i used:
http://www.insidemylaptop.com/take-apart-gateway-nx570x-laptop-disassembly-guide/

Posted on Dec 30, 2010

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My gateway zx6971 won't turn on. It was working saturday went to bed turned it on sunday night wouldn't turn on


Have you noticed that light bulbs nearly always only burn out the moment you turn them on ? The same thing applies to most electronic equipment that fails in that manner.

You could very likely have a failed power adapter (inside) or if you are lucky a failed AC adapter that plugs into the wall outlet and the back of your computer. You can check the latter with a volt meter at the small tip end that goes into the computer -- you should have a voltage of about 19 volts.

Unfortunately, all-in-one computers are about as serviceable as a laptop, so you will need to take this to a repair shop and have them give you an estimate. Try to find a shop that gives you a free quotation on the repair, regardless of your choice to repair or not.

As a future reference, you should always keep your computer plugged into a UPS and power line filter -- this will often reduce the risk (but not eliminate) the risk of failure.

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Gateway model mx6455


and ur problem is what???go to there web site.

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If I need to repair or replace my gateway mx6448 motherboard, which is most cost-efficient: to repair or replace? How would I know the difference? I am not an expert, but can I do this repair or...


Depends on what is wrong. Is it the DC Power Jack? The jack you plug the AC adapter (Charger) into?
Average cost is around $100 for a DC Power Jack replacement. (It's labor intensive, but the jack itself usually runs around $8 to $14 )

Most computer 'repair' shops do not have the skills required to perform this procedure.
The easy way is to just replace the motherboard. (Also more Ka-ching in the pocket)

Just a typical DC Power Jack replacement,

http://www.laptoprepair101.com/laptop/2007/12/06/dc-power-jack-repair-guide/

Disassembling a Gateway MX 6000 series laptop,

http://www.insidemylaptop.com/disassemble-gateway-mx-model-ma2a-series-laptop/


Some designs of the motherboard, have the DC Power Jack mounted in an area on the motherboard, that DC Power Jack failure is a reoccurring failure.
The motherboard cracks in the area the DC Power Jack is mounted. (Breaking the circuit traces)
In this instance it's better to replace the motherboard. Of course it's going to fail later on.

Your question: "Can you replace the motherboard?"
I have confidence in you, I believe you can.
Doesn't take a rocket scientist, but does require patience.

1) Remove ALL Power to the laptop. AC adapter (Charger), and Battery.

2) It would behoove you to buy, and wear an ESD wrist strap. (Electro Static Discharge)
Connect the alligator clip to a good ground source.
I connect to the metal frame of an empty desktop computer case.
(Average cost is around $3 to $8. Look online for reference. Visit computer repair shops, and stores like Radio Shack for purchase)

Your body carries Static electricity. Static will fry out (Short Circuit) the hardware components inside a computer. Especially a Processor.
With wearing an ESD wrist strap, and connecting to a good ground source, your laptop is safe.

3) There may be as many as 60+ screws. There may be 12, or more different types of screws. DO NOT mix them up! Use a multi-compartment container, and label the compartments for the area the screws came out of.
You can use a clean egg container, (Or two) in a pinch. label each egg holder.

4) You may want to take photos, and make notes as you disassemble. Makes a real handy guide for reassembling. Also nice to have if you get interrupted in the middle.

Obtaining a motherboard:
You might check Ebay. Sounds like advertising, but it isn't. Just one of my sources.
Also check Laptops for Parts on Ebay.
Some sell a laptop that has a broken LCD screen as the only fault.

Post questions in a Comment.

This is what the motherboard looks like, (Gateway Support),

http://support.gateway.com/s/Mobile/Q106/BladeK8F/4001199R/4001199Rmv.shtml

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You must use a battery that provides the same voltage required by the laptop. You cannot use a higher voltage battery on a lower voltage laptop, or you might fry the laptop's electronic circuitry.

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Often when a battery is real flat, it hangs up the entire system. What you need to do, is remove the battery completely, as the laptop should be able to be powered by the AC adapter itself. You may find if that is the case that your battery has gone bad, and you will have to replace it. If your laptop, will NOT work from the AC adapter, then either the adapter is faulty, or there is an internal vault, in the Power conditioning circuitry inside the PC. Try another adapter, if still no go, then it is definitely an internal problem.

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1 Answer

I have a Gateway MT6705 Laptop. The battery will not charge. I have replace the battery and the AC Power adapter. Still will not charge. Is the remaing circuitry for battery charging on the Motherboard,...


I am sorry you are having to deal with such a frustrating issue. If you have replaced the power supply and the battery, you have already spent around $200. or more bucks only to have the same problem persist.

Probably the single-most vulnerable part of your laptop is the AC jack where your power supply interfaces with the laptop. Stress and fatigue cause power issues I see in every brand of laptop on a regular basis.

The good news is the part will only cost you between $20-30 bucks. The bad news is that unless you have a low-temp soldering iron and are experienced with soldering components on a circuit board, the repair will cost you around another $100.00. Its a fairly easy and quick repair with the right experience and tools. You will want to get your hands on service manual before disassembling your computer.

There is no additional circuitry on the motherboard you can or would want to bother replacing. Hope this helps FixYa! Please Rate up this solution if you find it helpful.

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I had the same exact problem, the computer techs I talked to all said it was either the DC Jack or the Motherboard. They will need to open your computer to check this out and they usually charge to do this. I had the DC Jack replaced and still had the same problem so their next suggestion was to get a new Motherboard which can set you back quite a bit. Try to find a Computer repair shop who will give you an estimate at a minimum to no charge, also ask if they are able to fix the Motherboard without totally replacing it if this is the problem. This will most likely be at half the cost of a new Motherboard. My computer was fixed for a total of $220, that was $150 for a Motherboard repair and about $50 for the DC Jack repair. The only drawback was the company ended up damaging the body of my computer and won't own up to it. Whatever you do, don't send it to Pell Technology and get it done in the near vicinity. Also take pictures of your computer before you leave it with any computer repair shop.

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The problem seems to be that the pressure pad underneath the key is stuck on the "activated" position. Taking the keyboard out would not affect the position of the pressure pad. Also attaching a USB key board will not make any difference since the original keyboard is still electrically connected and has priority over any external plug n play devices. A new set of keyboard pressure pads should solve this. I suggest taking it to your local computer repair centre.

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Sounds like the power ON circuitry for the unit has gone or is going out. When you state you unplug it and wait 2 weeks and plug it back in and works fine, this is direction of allowing the capacitive circuit to completely drain befor the unit is officially "Off". Something is causing the "on" circuits to hold the charge making the unit think it is still "on". By letting it sit and discharge, the circuit "resets" itself. The only real way to figure this out is to take it to a TV repair shop (not much different than a tv) and let them diagnose it. But it maybe worth the time to trouble to just replace it at this point.

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