Question about Toshiba Satellite M35X-S149 Notebook

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Bad solder on a/c power socket of pc board.

I need to know how to disassemble in order to get at the back of pc board. instead of just going at it i thought i could get an exploded view to assist me.

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Re: bad solder on a/c power socket of pc board.

This link will take you to a disassembly guide.
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If you need any additional information, please feel free to ask. If this information has assisted you in the resolution of you problem, please return here to give my assistance an appropriate final rating. If this information has answered your question and/or lead to a resolution, please rate it as "Fixya!".
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Posted on Nov 27, 2007

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My keyboard keys are not working but when I use USB keyboard,it works fine. What could be the problem?

Good day,
Are talking bout the PS/2 keyboard (the one with rounded plug)? The socket for this type of keyboard is soldered in the board. The more usual problem is that the pins of the socket is teared off the board, and needs to be soldered again. You may disassembled the board from your casing and solder the keyboard socket. Just do it carefully not to burned the board and the other circuitry.
Needs more help - just post again here at Fixya.
Good luck.


Oct 06, 2010 | PC Laptops

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Battery not charging !!!. replacement of new batter also has the same problem. and old batter suddenly started charging by meddling with the cable for once. and then again the same problem. would it be...

Looks like either the power jack of your adapter is experiencing a bad connection. Check if the power adapter's cable near the jack which plugs into the laptop is not severely bent.If this is the case, then you will need to replace the power adapter.

If this is not the case, check the DC socket where you plug the power jack into the laptop. This socket might be loose or broken. If this turns out to be the case, then your laptop needs to be disassembled in order to re-solder or replace this socket, depending on its condition.

Aug 28, 2010 | Dell XPS M1530 Notebook

1 Answer

Have acer aspire 3690 - power socket is detached from board and some of the connecting tracks directly to the socket are damaged/missing - Have replacement socket but at a loss with regards to connecting...

Use epoxy glue to fasten the socket to the board. I assume that you have a proper soldering iron (small grounded tip, not a soldering gun), and know how to use it. After the epoxy has cured, trace the damaged tracks back to another solder connection, then solder an insulated (about #24 or #26) wire to that point and to the appropriate connection on the power jack. There should be a maximum of three wires to install. If you make the proper connections, it should work as before. Good luck!

Feb 05, 2010 | Acer Aspire 3690-2196 Notebook

3 Answers

How to fix HP Pavilion DV6405US internal power connector broke won t charge

It pays to determine if the fault is the laptop's power socket first.
Please read the following and carry out the tests to determine the fault.

If the laptop battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, until they won't charge up at all.
Check power adapter’s DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced.
If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard.
This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

Nov 29, 2009 | HP Pavilion DV6405US 15.4" Notebook PC PC...

3 Answers

How to replace power jack on sony vaio pcg-k33

Short version?

1.Remove the AC adapter if plugged in, remove the battery.

2.Wear an ESD wrist s-trap, and have it connected to a good ground. Work on a table, have a container with multiple compartments for the screws, and mark where each screw came from. There are as many as 65 screws, and 8 different sizes.

3.Completely disassemble the laptop, down to the bare motherboard in your hand. Remove the LCD screen assembly. No Processor, Cooling Tube, Heatsink, Ram Memory modules, CD/DVD drive, Harddrive, Wireless Antenna module, Keyboard, Nada!

4.Buy a replacement DC Power Jack.
Here is an example of one,

5.Use the correct tools.
If you're a really experienced tech, you can use a 30 to 40 Watt soldering iron. No.2 tip. Have a clean damp sponge nearby, to constantly clean the tip.
Make sure the tip is clean and tinned correctly.

Or use a medium priced soldering station.

I advise using soldering wick, (Desoldering Braid), instead of a Desoldering Tool. Works much better.

5.Use the correct soldering procedures.

Linger too long when heating up the solder joint, to remove the DC Power Jack, and you stand the chance of burning the board. (Motherboard)

Also could lift the Circuit Trace right off of the board.
(Circuit Trace may be thought of as a very thin, copper wire on the motherboard. It isn't, but this explanation will do)

Do any of the two errors above, and you can use the motherboard for a Frisbee.

My method for removing the DC Power Jack, is to pull up on one lead at a time. Use constant pressure with my finger, and thumb. (Don't get 'Godzilla' on it. It can break. Everything has it's limits!)

I heat the solder joint for that one lead, and try to pull it up, a little out of the board. Then I move over to another lead, heat it, and pull up slightly on it. Keep moving from lead to lead, until finally they start pulling out.

After the jack is removed, the area needs to be cleaned. I use 90 percent Isopropyl Alcohol, and Q-tips.

This is HIGHLY FLAMMABLE! Keep it away from that hot soldering iron, and use in a Well ventilated area.
Always immediately return the cap to the bottle, and tighten the cap well.
Have fire precautions ready, just in case an accident happens.
Better Safe, Than Sorry!

The area of solder, around the hole in the board for the jack, may need to be buffed off. (Fine sandpaper in a tight roll, or a fingernail file using the fine side)

All areas that will accept solder need to be clean, and tinned.
Tinned, the area is cleaned, a light spot of flux is touched around the rim of the hole, then solder is applied. The hole's rim then has fresh solder around it, and is ready to accept the DC Power Jack lead.

Be sure you have good solder joints! You may not see a cold solder joint, until you put the laptop back together, and the jack doesn't work. Then you get to take it all back apart, look at your solder joints, and go "OH".

This may help you in disassembling,

Oct 19, 2009 | Sony VAIO PCG-K33P Notebook

1 Answer

Power issues or maybe motherboard going out?

Hi there,
yes, I do that repair all the time. The key is to cleaning off all the old solder. The old solder can cause a bad connection. You need to get some solder wick, and some denatured alcohol. The wick will soak up the old solder.

Clean off the posts of the jack, and the circuit board from solder and flux, and use the denatured alcohol.

I know it is a pain in the **** to disassemble and reassemble, but it will be worth the time, and make is work right.

When you go to solder it back on, make sure you do not put too much or too little solder. A good shiny little bump on each one. If you have a good magnifyer, check out your joints before you assemble it all back together.

Good luck, and hollar if you need anything else on this.

Apr 11, 2009 | Dell Inspiron 1150 Notebook

3 Answers

Intermittent dc jack connection for Gateway mx3215

Here is how to disassemble Gateway laptop,

Here is replacement DC socket (needs soldering),

Here is DC board (no need soldering, but expensive).

Hope this helps.

Mar 17, 2009 | Gateway MX3215 Notebook

2 Answers

M2352 Power issue

There is no quick fix other than tapping or glueing it into a position that works. This is not a permanent fix and will fail again sometime.
The laptop power connector is either loose or faulty, the laptop needs to be dismantled to access the plug to resolder it (if loose) or replaced if faulty.

Jan 09, 2009 | E-Machines M2352 Notebook

1 Answer

Dell Latitude C540/C640

Wow Buddy. I'm impressed with your work here.
I have seen many boards which were oem, which had what appeared to be 'add on' circuitry. It's common when a problem arises in a product, which they've already had a million of manufactured. Otherwise, maybe the NSA, CIA, or MA Bell doing a little snooping?
Ok just kidding.
Assuming the circuitry which was replaced was still there, I've experienced a couple of "no power" issues on these models.
Bad power board.
AC adapter socket unsoldered from board.
Dead short between motherboard and palmrest/case.
Bad memory.
Burned capacitors.
Best thing since it's apart already, just order another board and you'r good to go.
I sell the same board at my shop for 75-100.00 US.
If the processor's good, then you should be good to go.
Good luck

Jan 22, 2008 | Compaq Presario X6000 Notebook

2 Answers

Faulty DC power connector

First pulling a machine apart takes time and careful disassembly - it is easy to snap off fragile plastic panels or rip cables and replacement parts can easily cost as much as paying someone to disassemble it for you. Usually a jack repair is $100-$150 depending on the shop.

Toshiba's are a multilayered setup - You have to remove all the screws from the bottom (note that they are labeled by screw length next to each hole - do NOT put the wrong length in when reassembling!!) Make sure to remove the hard drive and ram cover and check for screws there are well.

After all the screws are out of the bottom, remove the panel above the keyboard. Remove the keyboard and all the screws under the keyboard. Then you can get at the motherboard and power jack.

You will probably have to remove the motherboard to replace the jack - Usually the mounting screws for the motherboard are not so clearly labeled - i mark the holes with a sharpie when pulling a mainboard.

Good luck!

Dec 27, 2007 | Toshiba Satellite P15-S479 Notebook

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