Question about LG X-Note LM50 Notebook

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Power connection trouble

Hi i have a lg lm 50 laptop i left the power cable plugged in to charge up the battery and the plastic above the plug on the laptop has melted out/up so now the hole is more of a oval than circle on top and if i want to charge up the laptop i have to press the charge cable up i was wondering if there is any quick fixes to it or i should just grit my teeth and throw out the laptop

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It sounds as if the power pin (where the AC cord connects to the computer) has become unsoldered. To fix it usually runs $100-200. Because the connector pin is so fragile, the damage to the pin is caused by the day to day tugging and pulling on the power cord.

What you needed when you got the computer is a cable stay or cable retention device like the Jerkstopper. It takes up the strain when you yank or tug the power cord and minimizes the damage to the power pin. It's a very common problem with laptops.

Here's a short video that talks about the problem. . . .


Posted on Jun 04, 2008

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Is it the plug that is melted or the system connector, pls. explain in detail.

Posted on May 29, 2008

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Posted on Jan 02, 2017

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I've got a HP Pavilion dv5 that will not power on & the battery will not charge, even though the led is on showing connection to charger.Is my 3 v internal battery bad ?Need help please.....again


Do you have the a/c adapter? If so, eject the battery and plug in the adapter. If it powers on then your battery is faulty. If it shows power but no display then try and hook up another monitor via vga. I had this laptop and the ribbon cable to the lcd is poorly located at the joint where the LCD is connected to the base. I popped the plastic flashing off above the keyboard and pressed the ribbon cable back in and it was good as new.
Good luck

Sep 21, 2016 | HP Computers & Internet

1 Answer

It goes dark, shuts off constantly. Battery meter isn't showing charging.


Unplug the battery and plug in the AC power plug into the laptop;

Does the laptop start up and stay on?

If yes,

Then put the battery in WHILE IT IS ON; See if it starts charging.

If it does not; You have a bad battery and need to replace it.

If it does start charging here's what happend;

Some laptop batteries if they are fully depleted on charge will not let you power up the laptop EVEN IF the power cable is plugged in. In some cases the PC won't turn on at all.

The reason for this is because the battery must have a certain % of charge in order for you to start the PC even IF the power cable is plugged in.

By removing the battery we eliminated the battery as being a cause for this issue; Once the PC is up and running in windows.. LET THE BATTERY CHARGE! You'll want at least 10% charge minimum for the PC to start up.

If however the battery replaced still doesn't hold a charge it's going to be the AC Adapter power cable that's causing the issue.

Best advice start off with the power cable replacement first; This is the cheapest to fix; Otherwise the battery can cost in excess of $50-$150 or more. But universal AC power adapters can be cheap $70 or less which varies depending on laptop.

Sep 30, 2013 | Toshiba Satellite L655-S5101 Laptop

2 Answers

I bought A sony VAIO VGN-TXN29N when i plug the system battary its blinking and its not charging please advise what can i do regards


The likely cause of this problem is a common mistake in the way laptops are used.

A laptop battery, working at optimum efficiency, whether of the older Nickel Cadmium and Nickel Metal Hydride or newer Lithium Ion types, is meant to charge under power and then discharge under use, if it is to have a long and useful life.

This means that it should be used in a similar way to a cellphone's battery - connected to mains electricity and charged up when low or flat and then disconnected from the power and used on battery power alone until the power level means the cycle needs repeating. Many people, however, unwittingly use their laptops like desktop pcs and leave the mains electricity connected to it even after the battery is fully charged. The reason that people cite for doing this is convenience.

However, laptops have more flexibility than cellphones in that, if they are mainly used in one place rather than as mobile devices, then it is possible to charge the battery to full, disconnect from the mains, then remove and keep the battery until the next time the laptop's mobile function is required (periodically recharge the battery if not in use for long periods of time because the charge slowly dissipates when not in use), reconnect the mains to the battery-less laptop and use it like that, ad infinitum.

When a laptop battery is fully charged, what it really wants to do is discharge but maintaining the mains connection, prevents it from doing so. The power management system on the motherboard is designed to cope with long periods of either battery powered or battery-less mains powered use, but not long periods of simultaneous battery + mains powered use. The battery has no means of discharging and various power sensitive components such as the inverter, backlights, lcd panel and graphics chips can become damaged by the power bottleneck created.

Using the battery in this wrong way also gradually depletes the charging capacity of the cells, until eventually, the cells can carry no charge, meaning a dead battery. A dead battery, where the cells are depleted, left in the laptop with the mains connected, is even worse for the power management system because the flow of power to the motherboard via the dead battery cells battery is inefficient and intermittent, creating battery overheating, low fan speed, inferior cooling, internal overheating hazards to the potential electrical damage to several components.

Loose DC jacks, leading to intermittent power drops and surges, are typically caused by the jack being allowed to take the weight of the heavy transformer box on the laptop's power cable. The solution is to ensure that the laptop is never held, carried or used with the transformer hanging unsupported. If the laptop is in use, the transformer should be disconnected, carried, placed on a desk or table near the laptop (if the cord is short) or lain completely full-weight-flat on the floor (if the cord is long enough).

Also, always use a surge protector for computer equipment, never directly to the mains.

If the battery cells are dead, you require a replacement battery.

If either the Motherboard Power Management System or DC Jack are damaged, your laptop requires professional specialist repair by a Component Level Laptop Repair Specialist, providing No Fix No Fee, Warrantied Repairs ( typically 3-6 months Repair Warranty).

When you get your laptop back after the repair, manage the power in the way described above and you should hopefully avoid similar problems in future.

Also check for any damage to the cable where it joins to the transformer box. Also, obviously check for blown plug fuses.

Hope this helps

Aug 02, 2011 | Computers & Internet

1 Answer

Hello my laptop isn't charging properly. It is plugged in and all of the cables are connected. There is power in the plug socket but it doesn't seem to be charging. Help!


Hi! Drain the power charges of the laptop by shutting it down and by unplugging both ac adapter (charger) and battery from the computer.

Press the power button for like 10 times while the battery and charger is disconnected to drain the power of the board.

connect back the battery first then connect the charger to the computer. Make sure that the charger is connected to a stable power outlet while charging the system.

Please leave a comment if you have any other questions.

Cheers!

Jun 10, 2010 | Computers & Internet

1 Answer

Hp pavilion dv5-1002nr will not power up


Let's run through a basic flow chart.

1.Plug the AC adapter, (Charger), into the laptop.

Is the Power LED light on, and the Battery charging light?

[The Power LED light is on the front edge of your laptop, all the way to the left.

There are three small rectangular LED lights in this area.
1) All the way to the Left - Power LED light.
2) In the middle - Battery Charging LED light.
3) On the right - Harddrive Activity Lamp {Light}
The HDD Activity lamp blinks when harddrive is in use]

Gently wiggle the AC adapter plug, that is plugged into your laptop.

Does the Power LED light and/or Battery Charging light, 'Wink' when you move the plug? (Blink)

Does it stay on when you keep it over to a certain position?

If so, you have either a bad plug on the end of that AC adapter cable, wires that are bad in the cable itself, or a bad DC Power Jack.

(The DC Power Jack, is the port where you plug the AC adapter in. May be labeled as DC IN)

Do you wish to test the AC adapter plug?
See if it has an intermittent connection, due to a break in the wires that meet the plug?

And/or, see if the AC adapter is putting out any voltage, and if so, the correct amount of voltage?

Do you have a multimeter?

A cheap, yet effective multimeter, can be purchased for around $10 to $12 at most auto parts stores. (Radio Shack has them, and a multitude of other stores also. Not an advertisement for Radio Shack)

Set the multimeter to DC Volts, (Turn the knob in the front), and if it has a separate setting, set it to DC Volts - 50 Volt scale.

Read the label on the AC adapter's case. You are looking for the OUTPUT voltage/amperage.

Example:
I'm looking at an Acer Aspire laptop's, AC adapter right now.

INPUT: 100 - 240V ~ 1.8A - 50/60Hz
OUTPUT: 19V === 3.42A

The Output voltage is 19 Volts.

AC adapter plugged into the surge protector.
The Red lead, (Positive), of the multimeter, (Right now it's being used as a Voltmeter), is inserted into the middle of the AC adapter plug.

The center of the plug is the Positive connection.

The Black lead, (Negative), is held against the outside of the AC adapter plug. The round cylinder of the plug on the outside.

This illustrates the AC adapter,

http://www.buy.com/retail/product.asp?sku=213337465&listingid=63465880

The photo shows the AC adapter charger body, attached to the cable with the plug.
To the top left you see the plug, and the shiny metal cylinder. The Black lead touches the outside of the cylinder.

Read whether you are getting voltage, and the proper amount of voltage.
Gently wiggle the plug back, and forth, and see if there is a break.
Voltage, no voltage.

If the AC adapter proves to be good, you have a problem with the DC Power Jack. (DC IN)

The DC Power Jack is on the right side, all the way to the rear.

The setup, and mounting for this DC Power Jack differs from most laptops.
Most laptops have the DC Power Jack soldered directly to the motherboard, or are soldered to a separate small circuit board, that plugs into the motherboard.

This jack has a cable leading from it, and the jack attaches to the bottom case of the laptop, via a small bracket.

To illustrate what I'm referring to here, you may want to download, (Free), the Maintenance and Service Guide from HP Support.

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=3753576&lang=en&

(Just click on the X, of the small survey window that comes up)

On this page Left-click on -
HP Pavilion dv5 Entertainment PC - Maintenance and Service Guide
(10th file down. This is a PDF file. The computer you are on now has Adobe Reader on it, which uses PDF files)

Give it a few seconds to download. It may take up to 20 seconds before you see the first page.
I advise wait, until it has fully downloaded before looking through it, or you may break the download connection.

Under the Bookmarks column to the left, click on the + sign next to - Removal and replacement procedures

Click on the + sign next to - Component replacement procedures

Scroll down, and click right on - Power connector cable

(Or use the blue down arrow above to go to Page 96)

Point of this?
If you are technically inclined, you could disassemble the laptop, and replace the Power connector cable.
The DC Power Jack is part of the Power connector cable.

[BUY and USE an ESD wrist s-trap. Connect the alligator clip to a good ground source. I use an empty desktop computer case, and connect to the metal frame.

Average cost is around $6 for this device. Can be found in a multitude of stores. Again, Radio Shack is one source, but there are many.

Use a multi-compartment container for the various screws you will remove. Label each compartment for the area the screws came out of.
You can use a clean egg carton in a pinch.

Make notes, and drawings as you disassemble. Use a digital camera if you have one available.

Check with HP to see if this part is available. I also would check online, and you may want to give thought to Ebay]

2. If the Power light stays on with no intermittent problems with the DC Power Jack, or the AC adapter:

A.There may be a problem with the Power On switch itself. (Under the Power On button)

B.The Ram Memory modules, (Slang is Stick), may have become jarred loose.
AC adapter unplugged, battery removed. Open the Memory Compartment, and remove all ram memory modules. Now reinstall them.

Reinstall the Battery, and then the AC adapter. (Then plug the AC adapter into the surge protector)

Power On the laptop.

C. The Harddrive might not have a good connection.
All power sources removed again, open the Harddrive, (HDD), Compartment.
Make sure the harddrive's plug is tightly connected.
(Page 62)

D.If none of the above cures the problem, then it's time to seek a professional, competent computer repair shop.

The charging circuit of the motherboard may be bad. There is a sensor that determines if power should come from the AC adapter, or the battery.
It also determines if the battery needs charging.

You may have harddrive failure.

[Again, if the shop does determine it to be a bad motherboard, AND you feel technically inclined, you may want to replace the motherboard yourself.

Check online, and also Ebay]

Dec 16, 2009 | HP Pavilion dv1000 Notebook

1 Answer

C500 Laptop won't come on power button just flashes


Have you tried attaching an external monitor when the LCD screen is disconnected from the motherboard? this connector is located under the keyboard strip – a piece of plastic just above the keyboard.
If it works, this way, then the video cable isn’t seated properly in the connector on the back of the screen. Plugging the video cable back in should fix the problem.
I don’t know how comfortable you are with taking apart laptops but I think that this information could be useful for you.
Source: http://www.asklaptopfreak.com/laptop-notebook-help/2006/08/08/laptop-powers-on-and-shuts-off-immediately/

Sep 28, 2009 | Compaq Computers & Internet

2 Answers

HP dv9200 not charging battery


There are two cables that come off the DC jack plate and plug into the motherboard. Make sure that you seated both these cables fully or you will have the above problem.

Sep 25, 2009 | Computers & Internet

8 Answers

MEDION MD96640 - plugged in, not charging


Hi,
There is a possibility that the battery is defective.

Turn the laptop off and remove the battery and AC power. Clean the brass contacts on the battery and the laptop.
Plug in AC power only, boot the laptop up without the battery and go into the BIOS and set the BIOS to default settings. Save the changes and let the laptop boot into Windows. Once in Windows power down the laptop again and remove the AC power.
Reinsert the battery and AC power and boot the laptop up. See if that has helped.


Good luck.

Sep 21, 2009 | Computers & Internet

2 Answers

On my Fujitsu Siemens laptop the battery symbol is flashing orange, does anyone know what this means?


This means you're running out of battery. So you need to switch on to its adapter and plug it to the power source to let it charge.

Jul 23, 2009 | Computers & Internet

6 Answers

Notebook smells like burning plastic.


If the new Targus charger is really rated correctly for your laptop, your battery isn?t charging and you smell the burning plastic coming from the laptop when you plug it in that is a fairly dangerous situation and you shouldn?t plug it back in anymore. The power from the charger runs through a PCB board which distributes power to other components in your laptop. I suspect one of the components (probably a capacitor) had a catastrophic failure and is the cause of the smell and the lack of battery charging. Once again assuming that the Targus is the correct one for your laptop current you probably have a laptop damaged beyond home or economical repair.

Dec 02, 2006 | Compaq Presario 700 470024-192 Notebook

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