Question about Samsung RV510-A02 T3500 2.10G 320GBDVDRW 15.6IN W7HP - NP-RV510-A02US Hard Drive
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Posted on Jan 02, 2017
DC Power Jacks for the most part are soldered onto the motherboard. There are some models where the DC Power Jack and the cable harness just sits in a slot on the motherboard. And there are some models where the DC Power Jack is soldered on a little circuit board that is secured by screws to hold it into place. In any case to get to the Internal DC Power Jack you have to disassemble the laptop. And if it's soldered onto the motherboard, you will spend time unsoldering the old broken Jack before you can install the new one. Get a quote from a local repair shop, then check the guys out at: http://www.generalsystemsconsulting.com They will repair it and ship it back to you via Fedex or UPS cheaper than most quotes you get including the shipping charge.
Posted on Mar 16, 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
Have you deleted or changed settings for the Recovery Partition on your hard drive ?
You should retry Recovery a few times to make sure.
If not, then you will probably have to reinstall your operating system. Before you do, you can remove the harddrive (some models are easy, other require disassembling) and plug it into another computer to extract your data (providing the HD is functional).
If you provide more details on the "crash" or error messages you get on startup, maybe we can get it going without having to reinstall your Operating System.
Posted on Jun 19, 2012
SOURCE: no power on my samsung rv510
Zinzee, check the AC adapter first. (Charger)
Wiggle the power cord from AC adapter to surge protector.
See if the AC adapter LED power on light, blinks.
Yes? Bad power cord.
The port on your laptop that the AC adapter plugs into, is the DC Power Jack.
Wiggle the cable from DC Power Jack to AC adapter.
Power On LED light up, or blink?
Change? New AC adapter. (Also need to check DC Power Jack center pin, to ensure problem is cable, not DC Power jack)
Unplug the AC adapter from the surge protector. You will need a multimeter now.
An economical multimeter can be purchased for as little as $5 to $12. Available at a multitude of stores. An auto parts store is but one example. (Not for $5 probably )
The Function Knob is set to DC Voltage. (DCV)
If just a symbol it is a dotted line over a solid line.
The center hole in the plug of the cable that goes to the DC Power Jack, is the Positive connection. This is where the RED probe lead (Positive), of the multimeter goes to.
The outside cylindrical metal shell of the plug is the Negative connection. This is what the BLACK probe lead (Negative), touches against.
You should read very close to 19 Volts (DC)
Have an assistant wiggle the AC adapter cable to DC Power Jack.
AC adapter is good? No intermittent reading on multimeter?
Remove the Battery. Take a No.2 pencil, and use the eraser to GENTLY, see if you can wiggle the center pin around, of the DC Power Jack in the laptop. (DC_IN)
ANY perceptible movement means a problem with the DC Power Jack.
Chose link for the 4 views of the DC Power Jack.
Underneath the large Main view, there are 4 smaller views. Click on the one all the way to the right.
This is a view of the Back of the DC Power Jack, and the side that faces in on the laptop.
Note the L-shaped prongs on each side of the jack. These go down into the motherboard, and are soldered to the motherboard.
The 3 vertical lugs you see on the back, are the power, and Ground connections for the jack, and are also connected to the motherboard.
1) The center pin of the jack mounts to the jack's body, like a rivet. It is squished on the back, and this holds it in place.
Very easy to break that mount, and loosen the center pin.
2) The connections on the back are soldered, as previously stated, as are the 'L prongs' on the sides. Solder connections are also known as Solder Joints. If the jack moves with the pencil, and it seems to not just be the center pin, one or more of these solder joints could be cracked. (Broken)
Number 1 above means P-r-o-p-e-r-ly removing the DC Power Jack, and properly soldering a new one in.
Number 2 above just means re-soldering cracked solder joints.
DC Power Jack proves to be good?
At this point those who use the moniker 'Technician', but in reality aren't a tech, will want to replace the motherboard.
In reality the Power MOSFET's should be checked, to see if they are good.
IMHO a $4 to $5 P.MOSFET (Or two of them), is much cheaper than a $200 motherboard.
Of course if there is $125 to $150 in labor, the savings isn't that great.
Buy an ESD wrist strap, connect it's alligator clip to a good ground source, remove the motherboard, buy the DC Power Jack, and take both to the tech. Should be about $50 labor, or less to replace the Power MOSFET/s. (May not be both of them, just one)
[ I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.
You can also set a large metal serving tray (Unpainted), on the table you are working on, or a large metal knickknack (Unpainted), and connect to it ]
No Zinzee I do not know what manufacturer, and manufacturer number, of P.MOSFET's are used on your Samsung.
I DO KNOW;
1) They us J-leads on the bottom.
They are located near the DC Power Jack on the motherboard, usually. Example using HP dv6000 and dv9000 series laptops,
Using Fairchild FDS6679 Power MOSFET as an example,
For additional questions please post in a Comment.
Posted on Sep 07, 2012
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