Question about Samsung R519-53S Notebook

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R519 move ac power cable light flicker on/off

If I move the ac adapter cable around the battery starts to charge and laptop power on, move the cable and disconnect and turns off. Suspect one of battery, ac adapter, dc power jack socket or worst a motherboard, has anybody had this issue also, Thanks

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  • 156 Answers

This could be an AC adapter problem.Use another same rating adapter for teating.Check your ac adater volt and ampere at output terminals using a good quality digital multimeter. If OK, check the battery also. Then only suspect motherboard and power jack. Hope this helps

Posted on Dec 05, 2012

  • paul Falconer Dec 05, 2012

    Thanks a lot mate, its like stabbing in the dark.

  • benman Dec 06, 2012

    I have sent a troubleshooting tip to you. The steps mentioned to confirm that the problem is with adapter or motherboard. This is what a pc tech normally do at first. Anyway that was a good comment. I have got a chancea to lagh and hope get 5 more years in this earth. thank you

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SOURCE: my samsung r519 laptops battery will not charge

Please refer to the following article for a full explanation of how to diagnose & troubleshoot this problem:
http://www.fixya.com/support/r6416948-troubleshooting_laptop_power_failures

Posted on Oct 20, 2010

laptopwill
  • 115 Answers

SOURCE: I replaced the DC jack

There is. It would appear that the DC jack was not the only thing that was fried. If all your solder connections are correct, the mother board may have been damaged be the shorting of some part on the board, and burned open. Look for fuses, and "resistors that are have a "0" on them. they should read a short. if you find nothing. the board is damaged beyond repair.

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SOURCE: laptop screen flickering diffrent colours

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SOURCE: my computer doesnt recognise the ac power charger

The DC jack in the laptop is a common source of trouble, and in this case may need to be replaced. The computer will need to be dismantled down to the motherboard to address the issue.

Posted on May 01, 2012

joecoolvette
  • 5660 Answers

SOURCE: Hey, I have a samsung R60 Plus laptop for a few years now, and its out of warrently and the DC jack power socket has just stopped working. I ordered in a new DC jack for the power socket and soldered

Whew! Not being able to see the motherboard, and damage done, and you need advice?

Okay, onward.

Let's start with some basics first BEFORE you go on.

1) Use a 25 Watt soldering iron, or just stop. Use a No.2 chisel tip.
Use a soldering iron holder with a damp sponge in the base, or have a damp sponge nearby.

(Or use a soldering station)

Keep the tip clean, and well tinned. (Tinned = thin coat of solder)

2) Use .030 Rosin core solder, and Rosin paste. Buy a small brush for the paste.

3) DO NOT linger too long, or you will burn the motherboard, and lift the circuit trace 'hole', right off of the motherboard.
(Crude explanation of a circuit trace, is the thin copper 'wires' on the motherboard)

Lift the circuit trace off, and you will be soldering a jumper wire, (With insulation on it), to an area back on the circuit trace away from the 'hole', and over to one of the DC Power Jack leads. ('Pins')

3) Linger too long on a circuit trace, and it will burn. It will Not accept solder anymore. You cannot tin it.
(Time for the jumper wire again)

4) To remove a DC Power Jack, turn the motherboard upside down. I hold it with one hand. Then use your fingers, and thumb to apply pressure on the jack.

The tips of your fingers, and thumb, act as a fulcrum against the motherboard. While applying steady pressure, (Don't get carried away), apply heat to one of the DC Power Jack leads.

As the lead starts to come out, S-T-O-P
The other leads are still holding the jack to the motherboard.
The procedure is to heat one lead, and pull it slightly out. Then go to another lead near it, apply heat, then pull it slightly out.

Keep going around until all leads of the jack, are free from the motherboard.

HOWEVER, go S-L-O-W. You have all the time in the world. Don't believe me? Mess it up, and you have no place to plug your AC adapter in.

After you heat one lead, and pull it slightly up, allow the motherboard to cool down. (Cool to the touch)
Go to the next lead, heat it up, pull the lead slightly out, let the motherboard cool down.
You have all the time in the world.

Once the DC Power Jack is free, there may be a thin skin of solder covering the circuit trace holes, where the leads of the jack was.
This is FINE. Leave them alone.

When you go to install the new DC Power Jack, you will be pressing the leads against the solder covered holes. Touch the tip of the soldering iron against the solder covered hole/s, and the leads will poke through.

Let's look at a DC Power Jack, for a Samsung R60 series of Notebook PC,

http://www.laptopdcjack.net/product_info.php?manufacturers_id=22&products_id=1051&osCsid=n9lotjmn6q04eka4n84gh1htp5

WAIT A MINUTE, this jack connects to a cable. You soldered the leads together, when you were soldering the cable on?

Better take the new DC Power Jack, AND the cable, down to your nearest 'Mom and Pop' computer repair shop, and let them do it.

Cost will probably be a song.

Regards,
joecoolvette

Posted on May 21, 2012

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1. Plug the laptop into AC power.

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7. Replace the switch board and/or the flex flat cable that runs from the switch board to the mainboard.

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2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
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5. Laptop randomly powers off without any warning.

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Problem symptoms:

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http://www.insidemylaptop.com/laptop-dc-power-jack-repair-techniques/

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dear N9YK

you can follow this

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  • Tripping on or pulling the ac adapter cord
or you can check your dc amper in your adaptor

oke



thx

cropp

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