Question about HP Pavilion ze4300 Notebook

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My laptop does not turn on

I brough my laptop to local compuetr rapir shop becuase ac/dc jack problems, and later I got a phone call and they said "we replaced de jack but is not really your jack is *********** board" and now it does turn on. you need tu replaced a mother board.
It was only the jack losing conection. How come become a mother board problem??
Do yuo have any advise por this problem???
Thank you!!!!

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No idea why they fixed the problem then said it is the motherboard. There are times though when the motherboard is actually bad and it does need to be replaced even with replacing the jack. With a motherboard it has to convernt electricity and sometimes the wiring is fried or bad. But if it works then let it run, if not, I would take it some where else and have another company check to make sure that they did not melt the board causing it to be a board problem

Posted on Feb 20, 2009

  • Jeremy Reddick
    Jeremy Reddick Feb 20, 2009

    No idea why they fixed the problem then said it is the motherboard. There are times though when the motherboard is actually bad and it does need to be replaced even with replacing the jack. With a motherboard it has to convernt electricity and sometimes the wiring is fried or bad. But if it works then let it run, if not, I would take it some where else and have another company check to make sure that they did not melt the board causing it to be a board problem

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The power light is off The charger is OK with 19Volt The connector is OK and somehow there is a problem with in the power


remove the battery, connect the ac adapter and turn on the laptop. If it turns on then it's your battery. If it doesn't turn on then it is either your ac adapter, your dc jack, or your system board.

If it doesn't turn on then try a different ac adapter from your local pc shop or electronics store. If it still doesn't work then try moving the ac adapter connector and see if it attempts to turn on. If it does then it's your dc jack. If it is your dc jack then you will have to replace it. The problem with that is that it can be pretty expensive to replace it.

The way I have solved this is by ordering a dc jack on ebay or any other online parts supplier and replacing it myself. If you can take your computer apart and put it back together then it's just a matter of desoldering and soldering the new one. If you want you can have a pc or tv shop do the soldering for you.

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First of all, take the battery off and try to turn it on with the ac adapter (power cord) connected. If it comes up without the battery then it's your battery.

If it doesn't turn on without the battery and with just the ac adapter, try a different ac adapter. You can find one to try at your local pc shop or electronics store. If it comes up with another ac adapter then all you need to do is purchase an ac adapter at the store or order one online (cheaper).

If it still doesn't come on then it's either your dc jack or your motherboard. Normally if it's just the dc jack it will turn on or attempt to turn on when you wiggle the connecter in the ac adapter connection. If it's your dc jack it's relatively inexpensive to purchase online. The problem comes with having to take apart the laptop, desoldering the old and soldering the new dc jack, and putting the computer back together.

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Could be a combination of things.

1) Battery is low. Not enough power to turn the laptop on.
Caused by;

2) AC adapter has a plug on the end of the cable. The plug plugs into a DC Power Jack on the laptop.

The DC Power Jack is bad.

2a) The DC Power Jack has a bad connection to the motherboard, (Cracked solder joints), and/or the jack itself is bad.

2b) Center Pin is loose in the jack's mount.
The back of the Center Pin where it mounts has become loose.

2c) The plastic body of the jack, which composes the jack's case, is cracked. This allows movement of the Center Pin.

2b, and 2c cause a bad connection with the AC adapter plug.

No charge to the Battery, no power to the laptop.

http://www.laptopjacks.com/view_part/For-Gateway-MX6920-DC-Power-Jack-GW51425.html

[ If this is the case the DC Power Jack needs to be resoldered to the motherboard. The cracked solder joints need to be re-melted, (Reflowed)
Entire laptop needs to be disassembled down to the bare motherboard in your hand.
(No Processor, Ram Memory, or any adapter cards mounted to the motherboard. Nada)

OR,
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This entails disassembling the entire laptop, down to just the motherboard in your hand. (Same as above)

The old DC Power Jack is de-soldered, and a new one soldered in place.

Very FEW computer repair shops have the necessary skill level.
They just want to replace the entire motherboard.
IF one is available.
More Ka-Ching for them also. ]

3) The AC adapter is bad.
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AC adapter cord from adapter to plug, which plugs into the laptop, (DC Power Jack), may have a break in it.

May be an intermittent contact provided by wiggling the cord.
If this is the case the wires have stretched, and broken.
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Where this cord meets the plug itself. A lot of times there is a break in the wires in this area.

Solution is to replace the AC adapter. There are universal AC adapters you can buy, or perhaps Gateway still has some for sale.
(Ka-Ching)

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1. Disconnect the ac adapter.

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3. Find the reset button and reset your laptop. It should be located on the bottom part of your computer and marked "reset". Take a tiny screwdriver, a thumbtack pin, a paper clip, or any similiar object and push on the reset pin.

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7. You can test the ac adapter at your local pc shop or electronics store. You can purchase an ac adapter at one of these shops or order it online.

8. If it does not work with another ac adapter then it's more than likely your "dc jack" and that takes alot of work. The dc jack itself is relatively inexpensive ($6 to $30) depending on where you purchase it. The fun part comes in replacing it. You can do it yourself if you're good at soldering or you can get it done at your local pc shop or if you can take your laptop apart and put it back together then any local tv shop can do the soldering for you.

9. Have fun, Good luck, and let me know the outcome.

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1 Answer

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You Need To Replace The DC Jack In The Laptop...

It Is The Jack THat Your AC Adapter Plugs into....
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I Wouldn't Bring It To That Same Repair Shop To Do THe DC Jack Repair FYI...... ouch!!!

http://www.ifixlaptops.com

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