Question about Samsung R519-53S Notebook
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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Posted on Jan 02, 2017
Please refer to the following article for a full explanation of how to diagnose & troubleshoot this problem:
Posted on Oct 20, 2010
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.
Posted on Apr 18, 2011
Hook a spare monitor to the video ouput usually on the back, if picture okay! the problem is the new LCD screen or video cable which you replaced, if both show the same symptom it is the video graphics card normally built into the motherboard.
Posted on Apr 02, 2012
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
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?
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,
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.
Posted on May 21, 2012
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Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.
If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it
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