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Solved: Power Inverter for Laptop

Q: Solved: Power Inverter for Laptop

I have bought a 12v DC to 240v 300w AC Power Inverter. Made by Nikkai. which plugs into the car cigarette lighter.
Would it be safe to use it for my Medion MD96500 Laptop in the car along with a surge protector?
First time user of Tech Support Guy forum so any advice would be appreciated.

A: Solved: Power Inverter for Laptop

16 more replies
Answer Match 75.18%

Working on a client's problematic is a Dell Inspiron 5105.

Laptop was having problems with being unable to power on, and with a darkening LCD when it did power on.

Disconecting the touchpad fixed the power-on problem.

However, the LCD continues to malfunction. I can't tell if the problem is with the inverter, the CCFL, or the LCD itself. The symptoms are as follows:

Sometimes, the screen works fine.
Sometimes, the LCD comes on, but the backlight does not.
Sometimes, the LCD does not function at all.
Video out to a CRT monitor works fine.

There seems to be no way of predicting whether the LCD/backlight will work or not. Just, sometimes it does, and sometimes it doesn't. I've checked to be certain all the connections are secure...

Unhooking and rehooking the connections seems to make little difference. I've reseated the inverter and CCFL, which also seems to make no difference.

Any ideas as to which of the four--inverter, CCFL, LCD or (detachable, ATI) video card--is the problem? Or know how I could determine which it is?

As mentioned before, the computer would not boot reliably until the touchpad was disconnected. Is it likely these two problems are related somehow? I've been assured the laptop did NOT take a lightning strike, but i have only the client's word to go on for this.

More replies
Answer Match 71.4%

Do you think this would have enough wattage to power a laptop?

It says it does, I just wanted to check before I ordered it.


A:Solved: Car Power Inverter

9 more replies
Answer Match 71.4%

Hi guys,

I'm working on a Toshiba Satellite A105 laptop. The laptop suddenly went dark while in use and now the screen stays dark. In a dark room, with a flash light on the screen, you can kind of make out a picture. I wanted to confirm that this is most likely a power inverter issue before ordering the part. If anyone could help i'd really apprecaite it, thanks!

Here is the solution for anyone interested: As I did some troubleshooting I found that the screen had a pinkish hue which an article mentioned that that usually means there is a problem with the BULB, not the INVERTER. What had me confused is that unplugging the cable from motherboard to inverter brought the bulb on for a second, but unplugging the BULB from the INVERTER did not bring the bulb on, so I thought 'maybe it is the power inverter.' I then took out the LCD monitor from an old dell laptop and hooked it up the the bad HP laptop with the HP'S POWER INVERTER to rule out whether it was the inverter or the bulb. Monitor came on just fine, which means the BULB WAS THE PROBLEM AFTER ALL, otherwise the bulb would flicker just like the bulb from the hp laptop did. Cheers!

A:Solved: Is this most likely the power inverter gone bad?

11 more replies
Answer Match 69.72%


I am looking for a backup solution for my desktop computer (read as: tight budget) which can notify through a software interface about time remaining till batteries run out.

I am trying to run a server on this machine which I'm planning to use to give a demo to some parties from remote location. So basically this desktop will be unattended. I have written a small utility to gracefully shut down the server in case of power failure so that it doesn't look as though it crashed . And this utility needs to read the time remaining till total shutdown from somewhere. So I am looking for a budget backup solution which can provide me this data. (It is doesn't need to log it or so, I'm just happy to scoop it from its process memory if I have to.)

Can you guys suggest any backup-solution or anything which can help me find the time remaining till this desktop shuts down, if running on backup power?


A:Solved: Need advice on power backup - UPS/Inverter

help me find the time remainingClick to expand...
If the UPS does not have a data cable that connects to the PC and software CD, then there is now way to determine this, most APC brand ups's will have this, unless it is a budget model.

3 more replies
Answer Match 69.72%

I'm about to go on vacation with my family and decided to bring my laptop along to keep myself entertained on the long car ride. My laptop only has a 4 hour battery and it's an 8 hour trip. So I bought a 12V to 120V power inverter so I could plug it into the cigarette lighter to power it. However, I noticed that the cigarette lighter port provides 120W of power and the inverter is 160W. My laptop only needs 90W to run (according to the manual). My question is: is it safe to use a 160W inverter when the power port only provides 120W? Would I just get the reduced wattage instead of the full 160W or will something fry when the inverter tries to pull 160W out of a 120W outlet?

Thanks to all in advance.

A:Solved: 12V to 120V Car Power Inverter Question

7 more replies
Answer Match 65.94%


I have a Toshiba Satellite Pro A120 laptop and I believe the inverter for the screen has gone kaput! It powers up, gets drive activity light etc but the screen is totally dead.

Anyone with experience know how easy it is to check / replace an inverter?

I tried to have a look at it at the weekend as I willing to try and I have been building desktops etc for years, just have little experience with laptops. Took it apart as best I could (which wasnt much) but couldn't seem to find my way into the case at all! Removed Battery, hard drive, RAM, modem and all the screws I could find and still I couldn't get into it.

Any thoughts / help / info greatly appreciated.

A:Solved: Laptop inverter replacement

7 more replies
Answer Match 63%

1. Is it safe to use a OEM battery for HP 15-f033wn2. How long would it take to charge the battery if completely drained using a 70W continous car charger ? Just a rough ball park figure will do.

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Answer Match 61.32%

I want to get a power inverter to run my laptop in my vehicle. How do I know what my power needs are? This is basically for my kids to watch DVD movies, I want to make sure I get the right thing and don't blow my fuses or ruin my laptop, what is the minimum rating I should get?

A:Power Inverter

16 more replies
Answer Match 60.48%

I guess this can go in here since it is kind of hardware.

I am looking into buying a DC to AC power inverter to use in my car so I can watch DVD's on my laptop for long trips. I was wondering if anyone has ever used one of these, and how well they work.

I am planning on getting a 400 or 600 watt one. And I just want to run my ibook off of it.

Any personal experience and notes is appreciated, as I would like to get one soon.

A:Questions about DC to AC Power Inverter

Really need one that powerful for just a laptop - or are you going to run something else off of it. Now I'm not real sure on this but I've seen it with car amps, if you run something that powerful you could need a better alternator than a stock one? I had a friend once who when his camero would idle you could literally watch the voltage on the battery decrease, he had to actually drive to keep the battery charged with his speakers going.

Maybe Stormbringer will have a real answer.

4 more replies
Answer Match 60.48%

I have a laptop, Toshiba Satellite A75-S209.

I want to be able to run it in my truck using Microsoft Streets with GPS. Which is better, DC Adapter or DC power Inverter? How much wattage do I need? Will it drain my truck battery?

Thanks for your help, Dee

A:?? DC Adapter or DC power Inverter ???

I can't imagine a laptop would need any more than 150 watts...

2 more replies
Answer Match 60.06%

I have an HP DV9000 which had no picture on the LCD. Well, it had a picture, but it was very, very faint as if the back lights were dead. Works fine when plugged into VGA or if you squint/shine light to see the actual screen.

So I replaced the screen with my friends old screen from the identical model, assuming the backlights are part of the screen assembly. Apparently not, because it didn't take care of a thing.

So then I figured it must be the power inverter. Replaced that, too, and exact same problem.

What could possibly be wrong? I know how to replace the parts, I did it right. I can still faintly see. Is the backlight a separate part from the screen? Why else would I have no light at all? I know his screen and inverter work fine.

A:Screen and power inverter replaced, still nothing.

Is the laptop motherboard supplying the correct operating voltage and dimming control signals into the backlight inverter?

And yes, the backlight lamps are built-into the LCD panel itself. They have their own power cables and connectors for attaching to the inverter.

1 more replies
Answer Match 60.06%

ACDelco 100W Power Inverter
100 watt continuous output
Power Surge up to 260 W
Built in fan for cool running

Got so I can use notebook computer in car.

Are these safe to plug notebook computers into? Any assistance appreciated. Dorothy

A:ACDelco 100W Power Inverter

I've been using a ninety-five-watt version for about a year now with my Averatec loptop without detectable adverse effects. Mostly, I use it for charging; but, I have on rare occasions used it to run the system.

To be sure yours in sufficient to run the laptop you could monitor the state of the laptop battery's charge to see if it looses, gains or stays the same.

Example: If your laptop needs 130 watts and the inverter puts out 100 watts, your battery would slowly drain and the inverter would run hot and maybe fail after a while.

Frankly, I don't undertsand why so many people spend a hundred dollars or more for a twelve-volt power supply they can plug into a cigarette lighter when they can get one of these inverters for around 20 dollars or less. I got a package of two nintety-five-watt jobs for $20 at Sam's Club. That's only $10 each.

3 more replies
Answer Match 60.06%

I have a Gateway 450SX4 that just went belly up. I turned my back on it and then when I went back the screen was black. I could barely see the imaging on the black screen if I squinted and looked really hard. Is there any way to tell if this is a CCFL backlight problem or a power inverter problem?? Also is it possible to replace the CCFL on a Quanta Display model QD141X1LH06 ?? It seems to be integrated in the LCD with an aluminum sealed cover. E-mail responses also welcome.

Thanks, Trafcon

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Answer Match 59.22%

Hi guys,

I recently posted about trying to troubleshoot a power inverter vs a backlight. With some troubleshooting and help I was able to trace it to the backlight.

Now I've run into a slightly different problem. The screen is black (very dim and even looking at it in the light its hard to see the icons but you can very barely make them out). When I press the standy switch by the monitor it flashes on for a second with perfect colors (NOT purplish like in most ccfl bulb issues).

I took another ccfl bulb just to hook it up and the bulb did the same thing, flickers on and off. I hooked the laptop up to an external monitor and it works just fine (if i press standy I can see it going into standby on the external monitor).

I would say it is the power inverter at this point but would like a second opinion Thanks!

More replies
Answer Match 58.8%

I have a Toshiba Laptop... A week ago, my screen has started going black and coming back. Just two days ago, my screen went black and did not come back. I thought my screen was dead but then I figured that the back light of my screen was gone because when I look at the screen carefully, I barely see the things on my desktop....When I turn on my laptop, I can see my screen for 3-4 seconds, then it goes black again. Same thing happens when I log on after log off... It again gives me the light about 3-4 seconds after just logging on, then it goes black again. I finally opened up the screen, and found the display inverter... and it again gives me the light 3-4 seconds after I plugged out and plugged in the inverter cable. I am not sure whether the problem is the inverter itself of the inverter cable. I really need help.

A:Distinguishing between display inverter and inverter cable problem.

It sounds like the inverter may be sensing an overload on its output(s) and shutting down after a few seconds. Some possible conditions causing it could be 1) the backlight lamp(s) failing, 2) arching of the inverter output cable to itself or the frame of the LCD panel, or 3) a failure of the inverter's overload sensing circuit that makes it think it is being overloaded, when it really isn't.

WARNING: Use extreme caution when working around a CCFL inverter with power applied to it. Portions of it will have hundreds of volts of electrical energy on it. You could receive a nasty (and possibly fatal) shock if you come in contact with the high voltage.

1 more replies
Answer Match 57.96%

In my office total 10 systems are there....and there is a power backup (inverter) is also there...But particularly one pc is restarting at the time of power supply changed to inverter mode...what is the problem???
Please help in this regard....

Thanks in advance....

A:Pc restarting at the time of power supply changed to inverter mode

Hi and welcome to TSG.

If this is a business, do you not have contracted or inhouse I.T. support?

3 more replies
Answer Match 55.86%

Hello everyone.

So I've been attempting to fix an older laptop with a busted CCFL or inverter. The screen is totally dark, no weird colors or anything. I figured this would be a burnt out bulb so I ordered a new CCFL. I got everything apart easily and soldered the new one in. When I put it back together however the problem is still the same.

I looked for websites on how to test the inverter with a multimeter but I'm still not sure what setting to use. This site says to use the 1000VAC setting but with the risk involved I have yet to try it.

Another thing I was wondering is if it was possible that I soldered the CCFL with the incorrect type of solder. I used rosin core w/ silver solder. I doubt that's it but I thought I'd ask anyways. Also maybe I got the CCFL in backwards? I didn't see polarity marks on the light but again, possible?

Any help at this point would be great. I'd mainly like to test the inverter though as I'm 90% sure that's the problem at this point. Thanks!

A:Laptop CCFL and inverter.

15 more replies
Answer Match 55.86%

I found to my dismay, after ordering the wrong part, that there is more to getting the right inverter than just knowing your laptop model number.

Please look at this attached image and tell me which number on this thing is the number I should use to find the correct inverter.

A:Need help identifying this laptop inverter

9 more replies
Answer Match 55.86%

I have an IBM Thinkpad and recently my backlight has been failing (you can still barely make out then screen but its all dark) and sometimes it comes on when i start the computer but this is getting rarer and rarer.

I can fix this but my problem is determening if the problem is the backlight or the inverter as i dont want to buy the wrong part. Is there a way to detect which is the problem or should i just buy both? which is it more commonly?

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Answer Match 55.44%

basically the title says it, my laptop screen still has an image but no light (except for the first few seconds upon booting)

so my question is is there a way to fix this manually or does it need to be replaced?

A:laptop screen goes black, do i need a new inverter?

8 more replies
Answer Match 55.44%

I see a lot of inverters advertised on e-bay for a Dell Latitude D520. Problem is the D520 came with two sizes of screens, a 14.1" and a 15".

I wonder if the inverters for Latitude D520 work in all D520 regardless of whether the screen is 14.1" or 15"

More replies
Answer Match 55.44%

My laptop is about 5 years old. When it boots, it works fine, but after a period of time, the backlight goes out. I can still see the screen if I look at it at an angle with a flashlight or something. If I restart the computer, the backlight comes back on. A week or two ago, the light would go out after a few hours of use. Now, it goes out within a few minutes of booting. Is this an inverter or backlight problem?

A:Laptop inverter/backlight problem

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Answer Match 55.44%

Does anyone know where I can buy an inverter for a Dell Inspiron 2650 laptop? Dell will only sell a kit containing the display, cable, and inverter for $429. Ouch! Thanks for the help.


A:Dell Ispiron Laptop Inverter

Hi Bob

There seems to be one here.

1 more replies
Answer Match 55.44%

I recently sent in my old hp compaq to a service centre as the fan was making a noise, so I simply asked them to clean the dust out of the fan. I got a message from them 2 days later (!) to say that the screen inverter needed to be replaced. I replied to ask why, and they said it had stopped working and that it was nothing to do with the work they carried out as they only opened the back of the laptop to service the fan. My laptop went to them in perfect working order. Is it possible for the inverter to just stop working, seems too much of a coincidence to me. Does anyone know what causes the inverter to stop working? Thanks.

A:Old HP Laptop screen inverter damaged

You didn't take it to the Geek Squad at Best Buy did you?

1 more replies
Answer Match 54.6%

I dropped my dell inspirion 1525 and now have very faint display on screen -- external monitor provides perfect display - computer functions fine.

I have removed the bezel (save for one stubborn screw -- for which i am going to the hardware to purchase a smaller screw driver) meantime -- i am not at ALL sure where to find what i am looking for ... I understand it may be the inverter or ccfl which is damaged -- but i'm not sure where these are. I have found a replacement inverter and am still looking for a ccfw.

Can anyone help me locate these parts?
Tell me how to determine if they are damaged?
Tell me how to determine what ccfl I may need, if mine is damaged?

Very much appreciate!

A:dropped laptop -- dim display inverter or ccfl?

The CCFL (Cold Cathode Fluorescent Lamp) is inside the LCD module assembly and there may be more than one. Your display uses one CCFL if there are only two wires going from the LCD module to the inverter.

The CCFL is miniature version of a fluorescent tube used for store and office lighting and is made of glass. If you can hear anything rattling around inside of the LCD module when flipped to different positions, it is most likely pieces of the CCFL that got broken in the fall.

If you can find a source of replacement CCFLs, getting to the CFFL inside the LCD module will require removing the LCD module from the laptop and then disassembly of the LCD module itself to get to the CCFL. The internal display electronics are rather fragile and subject to breakage while taking the module apart or putting it back together.

3 more replies
Answer Match 54.6%

I have an HP laptop that screen goes dark on it after a while. If you get real close you can barely make out an imagine when it does this so I am guessing that it could be the inverter or the lcd cable.

However after taking the cover off I noticed something and wonder if this could have any impact. If you look at the 2nd pic the arrow on the right shows where a foil is all ripped up. Does this act as a ground and could this be part of the problem?

Also where the left arrow in the 2nd pic is pointing does that just pull apart to the left to unplug??

Thanks in advance for any help. I have never had the nerve to open up a laptop before.

pic 2

A:Laptop screen goes dark. Inverter or LCD cable likely bad

7 more replies
Answer Match 54.6%

I had a local computer guy replace the inverter for my laptop, because everything was working except the backlight (I used a flashlight lightened from behind the screen after I disassembled the screen. Everything worked great!)

I just went to the guy's house to pick it up. We had ONE test to see if everything was running ok. It surely was. Then, I just got home and turned it on the second time after it was repaired. Everything got so dark again. I could barely see things on the screen. Why?? What happened?


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Answer Match 54.6%

I have a compaq v6000 seris laptop and the bacilfht/inverter is daed what can i do to fix this problom as fast as posoble i works sometimes if you lightly tap/hit the back of the laptop and then will goout again shortly after

A:Compaq Laptop Dead Backlight/Inverter

is there anything that i can do?

2 more replies
Answer Match 54.18%

Sooooo.... I'm working on a free hand-me-down laptop. Had a hard drive problem, which I fixed and happened to find 4GB of RAM to toss into it... and what do ya know, the screen starts messing up as soon as I fixed it...

The laptop is not very old so I would like to fix it... onto my problem.

The screen sort of "flickers" and "moves around" and also has a pink tint to it every once in awhile. The screen is this way as soon as I power on the laptop, and having it plugged into the wall proves no difference. Another strange thing is, if I leave it on, after about 5-10 minutes its works perfect, but only for about 15 seconds, then back to like the picture above.

- Tried hooking it up to my desktop monitor, works great.
- Took this thing apart, checked the all of the wire connections, seem to be solid and fooling with them with the lappy on did no justice. I'm stumped basically.

So now I'm wondering, backlight or inverter?

EDIT: Oops forgot the laptop info
Acer Aspire 7520-5071
17" Dual-Core 4GB RAM
Any comments/help?

Thanks in advance,
So I tried an inverter.... no fix
Noticed that while messing with the video cable to the LCD made the screen go in and out.....
Ordered a new LCD cable.... no fix
Sooo I made a short video

A:Acer Laptop Screen Problem-Inverter or Backlight

Normally when the backlight goes out, it will affect the full screen. It can flicker or go out completely. This can be checked with a flashlight held up to a text area on screen and looking for the contrasting image on the LCD. From the way you describe the working then stopping, it sounds to me like the inverter is building up a charge then letting go.

9 more replies
Answer Match 54.18%

My laptop's screen has gone dim and I need some thoughts on which is the most likely cause -
Machine is a Gateway M320 purchased in 2005.

One day at startup the screen had a pinkish hue and then went dim. Restarted again and the same thing. Screen is bright (with pink hue for a few seconds, then goes dark.)
After some research I came to the conclusion that the LCD inverter had gone bad. Bought one on ebay and replaced it, with no change.
This also happens when waking the computer - bright screen with pick hue for 3 seconds, then dim.

Hooked up an external monitor and that works fine, so I know the graphics card is fine.

So as I see it, possible problems are I got a bad replacement LCD inverter, the CCFL bulb is burned out, or the video cable from inverter to screen is bad. Or ???

I would appreciate any help.

A:Laptop screen - LCD inverter, CCFL or video cable?

Hooked up an external monitor and that works fine, so I know the graphics card is fine.Click to expand...

Not necessarily so. I know this sounds incredible; but, I had a laptop recently that would not run the built-on LCD but would run an external monitor. One would think the display controller just had to be good--not so!

I replaced the laptop's display controller and the problem went away. Just to be sure, I swapped back a few times, rechecking all my connections and the problem always came back when I put the old controller back in.

Here's the thread if you care to read it. Granted, this has to be a rare situation; but, truth is stranger than fiction:

Additional info: CCFLs can go bad gradually and pull more current from the inverter than the inverter is designed to deliver, overloading the inverter. Just a theory; but, I wonder if the CCFL is overloading the inverter. Maybe the inverter does fine for a few seconds, then overheats due to the overload.

Then, I have trouble explaining why that would cause a color shift. Usually, color shifts are caused by bad connections between the display controller and the monitor or a bad display controller.

CCFLs are very, very difficult to replace because of their delicate construction. It's just a smidgen larger in diameter than a standard wooden pencil lead and is as long as your screen is wide. And the glass is really, really thin... Read more

3 more replies
Answer Match 53.76%

Hi all. Is there any brilliance in the house? I hope so.

The inverter on my Acer Aspire 5103WLMi died after 13 months.

No probs. I bought a new one, put the machine together again and started it up. Perfect... well almost.

What is happening now is that I cannot get maximum brilliance from the screen. All the Windows option settings are set to the max and the are no other user settings available I can make to chance this.

Ok you'll be thinking there is an issue with the inverter but I'm far from sure that it is. The picture is perfect apart from this issue.

Booting up Vista will have the screen bright and brilliant (max brill). Windows will continue to load and then as the machine continues to load the registry and gets to the bit where the screen brilliance is set the screen will dip and settle to about 75-80% of it's capable brilliance. I feel sure this is a registry issue because of the boot up procedure which is clockwork and 100% predictable.

Where can I inspect the reg to find these settings? They must be there.

Other suggestions?

Many thanks.

A:Brilliance issue after screen inverter replacement on Acer Laptop

Are there really no takers on this?? How dissapointing.

For those that don't know what an inverter is. inverters create a hi voltage charge and light the screen bulb(s) on your laptop or monitor. When it don't work you will see a perfect but dark n unlit image on your screen.

Cum on sum1 help me out for gawd sake!


1 more replies
Answer Match 52.92%

Some time ago I released my laptop from Standby whereupon I was faced with a blank screen but the display can be seen in bright sunlight or by using a flashlight.
I purchased an external VGA monitor but have subsequently realised that I cannot boot using a EaseUS Emergency Disk without first being able to get into my BIOS to change the boot sequence and to be able to do this I need a working laptop display.
My plan was to create an image of my system using EaseUS Backup but unless I can fix my laptop's display then if my hard drive crashes I have no means to restore my OS ( Windows XP ).
I don't have the finances to buy a new laptop so choosing the cheapest ( and easiest ) solution where hopefully I find that replacing the inverter fixes the problem.
What I need is a guide in how to take out and replace the inverter with my particular laptop model.
Once I know my inverter's part number then hopefully I will find it online where I think might be my best chance of achieving my goal.
Can anyone please be of assistance?
Thank you.

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Answer Match 51.24%

I have a Compaq 6910p laptop running Windows 7. Lately I have been getting a pink tint to the screen and have tried all adjustment to the display settings I could find. I removed the bottom portion of the LCD screen by using the instructions on the Compaq web site. I disconnected the inverter checked for any cracks or physical damage and could not find any. I put it back together and everything seemed fine. It worked fine for about a day. I am now getting a pink tint again when I start it up but it seems to go away after a little while. I am now getting a flickering on the screen It was flickering at a pretty fast pace when I started writing this. It has now stopped the flickering and the tint is gone but I feel it is just a matter of time. Would this be caused by a bad inverter or is there a backlight in this that could be waiting to die? While I was having the problem I hooked it up to an external monitor and it was fine. Thanks

A:Solved: Inverter or CCFL

6 more replies
Answer Match 50.82%

Hey Guys I ought a late 2007/early 2008 MacBook from CL for 30 dollars the other day. Powered on but no brought it home and shined a bright light on it and voila I see a picture now. Every so often I can get the LCD to light for about 5 seconds or so by playing with the bright ness switch on the keyboard. I had an "apple tech" look it over and he said the actual LCD has gone bad and not the that true?? I thought these were TYPICAL symptoms of failing inverter...PLEASE tell me im correct so I didn't just crap away my money??

A:Solved: Macbook 2007? Inverter bad??

16 more replies
Answer Match 49.98%

Compaq Presario V2607CL laptop
Screen went so dim it was unusable. Decided it was worth a try to replace the inverter.

Installed the new inverter, husband turned on computer to see if it worked and it did. Then he turned it off to put laptop back together. The screen is now dark again. Does anyone know what may be wrong or what could cause the inverter to go bad so quickly?

Thanks for any help.

A:Solved: Replaced Inverter - worked briefly - gone again

6 more replies
Answer Match 49.98%

I have a Sony VGN NW20EF (model PCG-7185M) and suspect something wrong with the display

Can only see anything if I shine a light on the screen

Is this the inverter or the backlight and would I have to replace the whole screen ?


A:Solved: Inverter, Back Light or Screen

9 more replies
Answer Match 47.04%

Hi think i have one that is destined to never be solved its trying my patience to the max and worst of all its 2 machines with same problem

can see image but faint so changed inverter and screen and cable to no avail but powered screen backlight from external power all is ok it just cant seem to get power from the motherboard is it possible i've shorted the motherboard but hard to beleive this with 2 machines the same.

thanks for any replies

A:HELP!!! Laptop screen dim but its not Inverter or Screen/Cable

6 more replies
Answer Match 47.04%

My laptop screen has just broken.
I have attached a picture of it.
Will this be a inverter or a screen problem/replacement needed?

A:Laptop Screen Broken. Inverter or Screen?

7 more replies
Answer Match 46.62%

This may seem like a stupid question....My laptop had been shutting off by itself for about 2 weeks. Suddenly, it shut off last night and will not come back on. Here's the stupid question - the light on the power adapter does not come on when plugged into the wall. Is the power adapter the likely problem? I think i know the answer but, both my desktop and my laptop crapped out at the same time so i'm sort of losing it right now and I just need a second opinion.

A:Solved: Laptop power

9 more replies
Answer Match 46.62%

Hopefully someone can suggest an idea for me.
I've already posted in other forums with no feedback yet.
I'm working on a laptop that will not power up. Acer Travelmate 4740-5261
With a volt meter I've tested the power cord, power jack, MB, and the power switch board.
All have proper readings.
Is there a way to get the laptop to power up by jumping the pins.
There are 10 pins that connect from the MB to the power board via a ribbon.
Pins 1, 3,4,5,6,7,8,9 all give 0 volts
Pin 2 gives me 2.8v
Pin 3 gives 3.4v
Pin 10 gives 5.1v
When I jump pins 1-2 the MB LED comes on, and on the power board when I jump pins 8,9,10 the power board LED comes on.

The only thoughts I have are the power switch board or the MB is bad.

A:Solved: No Laptop Power

9 more replies
Answer Match 46.62%

Hey people,

I recently posted about my laptop laptop ac mains adapter as it was flicking on and off and diagnosed it as a dodgy cable. Went out and bought a new one to try and fix the problem but the power still switches between mains and battery when cable is inserted. Have concluded that the connection in the laptop my not be working correctly and was just wondering is this a common problem and is it easily fixed.


A:Solved: Laptop Power

10 more replies
Answer Match 46.62%

Laptop Will Not Run On AC Power

I am trying to revive my Sony Vaio Laptop. Everything seems to be doing okay - was able to install a brand new hard drive, new operating system (Windows XP Pro) - but all the while am having what I believe is a power problem and the unit keeps shutting off.

I am finally at the point where I can not log into windows in time to attempt to make any adjustments, before the unit powers off abruptly.

It appears that the AC power is NOT bypassing the battery and it wants to always run off the (now mostly dead) battery. It will not charge the battery either - I left it overnight to see if I could get some juice in there to attempt to disable the battery via Device Manager, but that has now failed and was my only chance that I knew of.

I do not have an extra battery, nor an extra ac power adapter to test, however I do know that power is making it to the computer because the end of the AC adapter conveniently has a nice green power indicator at the end of it showing me that power is there.

So, do I have a bad internal power supply or something? I really need some help please. It did seem that I may have been getting some power for a little while since I was able to install the operating system and make several adjustments before I became completely locked out.

The last 2 or 3 posts I posted in here went unanswered for some reason, so if anyone knows if I have done something incorrect, please let me know. I have been a member of this community here ... Read more

A:Solved: I really need some help please ... (Laptop Will Not Run On AC Power)

7 more replies
Answer Match 46.62%

My laptop was working last night. One of my kids must not have turned it off properly and now it won't start up.

Lights do come on in the actual laptop but the screen is black.

This has happened a few times before and eventually the laptop did come on but it has been like this since last night.

I think last time it came on, my daughter pressed all sorts of buttons so I don't know if there is a key that wakes it up. If I press the power button, it does turn off and the computer was not hot last night at all so I don't think it overheats.

Please help.

Thank you,

A:Solved: laptop won't power up

I did turn the power off all night and when I put it on this morning, I expected it would be working again but it is not.

3 more replies
Answer Match 46.2%

Laptop: TOSHIBA L505D-S5983 3GB AMD II 288GB W7 2.00GHZ 32BIT.
Problem: 1)the battery will NOT charge in my computer, but will in a separate one.
2) AC adapter appears to work but will NOT charge battery when in laptop.
3) Laptop will not power up with adapter plugged in.

I'm leaning towards trying a new adapter, if the problem still persists what would be the next logical step?

A:Solved: Laptop Power Problem?

I would get another adapter and see if that solves the problem.If that doesnt work then its a power supply problem i would think.

3 more replies
Answer Match 46.2%

I have an HP Pavillion v6500 laptop that belongs to a friend. It's preloaded with Vista so it cant be that old. What is happening is that when the power button is depressed all the LED's flash on for a second, including the power indicator, and then it just shuts off. I've tried this with just the battery and with just the power cord and no battery. Either way it does the same thing. This laptop does have a light that surrounds the power input and it does light up indicating that power is getting to the unit which indicates to me that the power supply is working. If anyone has any experience with this type of problem and would like to share some input I would greatly appreciate it. I'm not reluctant to open the unit up and do some soldering or such as long as I get some conclusive and reliable info.


A:Solved: HP Laptop power up issue.

9 more replies
Answer Match 46.2%

My laptop shuts itself off randomely. In a previous post I had a problem with no power at all. I fixed that by replacing the adapter. Now, the power shuts off all by itself. Any suggestions would be appreciated.

A:Solved: Laptop power issue

6 more replies
Answer Match 46.2%

Hey everyone,

I have a quick question: Is it okay to remove the battery from a laptop in order to shut off its power while the laptops on? I am assuming no, but I simply cannot seem to turn this laptop off :/

I ran my software system on a new laptop. Please keep in mind that it seems to run fine on my PC. It started good on the laptop but then it was like it completely froze. Now I am just waiting until the battery dies out as I don't know what else to do...

Is it safe to do so or do you recommend something else?

I should also probably point out that it was booted from a CD software system. ie; I am currently not in XP, Linux, or the like.

Holding the power button for 5 to even 15 secs does not do anything either.

Thanks for any suggestions I wonder if anyone will reply before the battery goes out ^^

A:Solved: Laptop power problem

12 more replies
Answer Match 46.2%

HP laptop will not power on, power stays on form maybe 2 seconds. Client just wants files from hdd saved and is not interested in the laptop. Besides replacing the motherboard, what can someone use to retrieve files from the hdd. Is there a hardware device the provides power and connectivity???

A:Solved: HP Laptop power problems

Is there a hardware device the provides power and connectivity???Click to expand...

Yes, you will need an external USB hard drive enclosure for a 2.5 inch hard drive, you will also need to choose one for either IDE or Sata hard drive, depending on what hard drive type you have. Once this is done connect it to another PC to access your data.

They can be purchased for $10~30 most anywhere.


2 more replies
Answer Match 46.2%

I have had this Toshiba Laptop for nearly 2 months.
I very rarely take it away from home so it is plugged into the main power.
This morning I noticed that the battery warning light had gone orange and checked in Control Panel > Power Options.
Under Power Meter Both the mains power and battery are listed and the battery was at 99%, which only took a minute or two to recharge to 100%.

My question is.. Which Power Scheme should I have it set to so that the battery is fully charged for the rare time I require it, without doing any kind of damage to either the battery or to my laptop??
Currently it is set at Always On.
The other options are:
Home/Office Desk
Portable Laptop
Always On
Minimal Power Currently
Max Battery
TOSHIBA Power Saver

A:Solved: What is the best Power Option for a Laptop?

13 more replies
Answer Match 46.2%

I have an HP Pavilion laptop running Windows XP Media Center. For a reason unknown to me, my power profiles disappeared and I can no longer modify them. Screenshot

Any ideas?

A:Solved: Laptop power profiles gone

8 more replies
Answer Match 46.2%

I have a Gateway 3550gz laptop that won't power on even with the power cord.

If I have the battery removed & the unit is plugged in, there's no life at all. If the battery is in place & the power cord is unplugged, the power light blinks for a bit. If the power cord is plugged & the battery is in, the power light blinks as before. There are no fan or HD noises to speak of. The power adapter is putting out the correct voltage.

I found instructions to disassemble the laptop, but then what? Any help is appreciated!

A:Solved: laptop power issue

Well, it's an internal issue. My advice is find a competent shop and take it for repairs. Obviously, if it's still under warranty, send it back to Gateway.

1 more replies
Answer Match 46.2%

I have an E System 3087 laptop with power issues.
When on battery power it works perfectly, but when you plug in the mains adaptor the problems start.
the battery icon in windows keeps alternating every 2 seconds or so, showing on AC power then battery power. I have bought a new mains adaptor, but its still the same.
Everytime it changes to battery power, the screen goes dim which is really distracting.
Any suggestions would be helpfull

A:Solved: Laptop Power issue

8 more replies
Answer Match 46.2%

Hi All,

I have a Dell E6510 Lattitude laptop which right now I am using as a desktop replacement. I have my laptop hooked up to a Dell docking station and I have a mouse, keyboard, and 22" vga monitor running through the Dell docking station. Over the past few days my laptop has developed what seems to be an intermitent problem with either the power or the battery or both.

My laptop has the 12 cell Dell Li-On battery and I did some research on how to get the best life out of the battery and based on what I read here on TSG and other places I have been cycling the battery between 30% charge and 80% charge. I have the charger plugged into a power strip and when the laptop drops to 30% charge I turn on the power strip and when it gets to 80% charge I turn it off and all seemed good.

The past few days when I have had the charger turned on the battery light on my laptop which is normally Blue (and blinks when the battery gets to approx 90%) started flashing Yellow and the battery icon in the system tray said "Battery plugged in, not charging". After a few minutes like this charge light turned Blue again and all appeared normal.

Is the battery in my laptop starting to die or is possible the charger going out? When I bought the laptop the person who sold it to me gave me two Dell AC chargers. One was smaller and he told me it is good for traveling and charging the laptop by itself. The second Dell AC charger he gave me is physically larger and he told me if I ever... Read more

A:Solved: Laptop Power Problem

There is a lot of conflicting information about laptop batteries on the internet. From what I have read the main causes of laptop battery wear are heat and the number of charge/recharge cycles the battery goes through.

I think the best advise is to charge the battery to around 40% then remove it from the laptop and just use the charger to power it and only fit the battery when you need the portability. Of course you can charge it up to 100% beforehand.
I have seen advise to fully charge then discharge the battery occasionally to 'calibrate' it but to be honest I'm unsure if that's a good idea or not.

Using the higher powered charger with the laptop in the dock makes sense because the circuitry inside the dock needs power too.

I'm sure there will be many other posts about this soon !

EDIT Re the intermittent charging problem Dell often have a extra contact in the centre of the laptop connector that can become a loose fit and cause that. Is that connector a good tight fit ? If it plugs into the dock is that also a tight fit ?

3 more replies
Answer Match 46.2%

Hey everyone,

This may be a stupid question, but since it's my first time, I don't want to screw up. Okay, I was given an Acer 3050 laptop and the power wouldn't work. The user had bought another power cord and still no luck. They gave it to me and I stripped it down and got out the mobo. I noticed that the laptop DC adapter port was on a separate card. I ordered a new card and that will replace the current card. ( - picture of the card.

Anyhow, I would like to know, in order to test and ensure the power supply works, when I get it in, can I just hook it up to the mobo and insert the power cord into the DC jack and then push the power button (located on the card, not the mobo) and test it to ensure it works. I assume it would work b/c the CPU fan would spin up.

Am I right, or do I need to put the machine mostly together.

I know that with a desktop it would work, b/c I have done it, but this is my first time that I have completely dismantled a laptop.

A:Solved: Laptop power supply

9 more replies
Answer Match 46.2%

I have an old Tiny laptop in which the battery is us.
I noticed that the mains adaptor is for 19 volts.
How critical is this voltage?
Would it be safe to use a car battery with a voltage usually of 13-14 volts but could go as low as 12?
The computer is so old that it is probably not economic to replace the batteries even if I can find one.

A:Solved: Laptop power supply

6 more replies
Answer Match 45.78%

Been a great help here...helping my limited knowledge of computers improve.

Toshiba satellite L355D.....turns on lights up...but no screen display. Screen remains completely black. I switched the memory to see if it improved, but still nothing. Even took memory, still black screen. Rolll up your sleeves...where do I start?

A:Solved: Black Screen on Laptop Power up

16 more replies
Answer Match 45.78%

I recently bought a Sony Vaio VGN-NW110D laptop computer for my father. It came with Windows Vista 64-bit Home Premium Edition. I notice that, if I shut down the computer (not standby, but shut down), it still uses battery power. For example, it could go from 100% down to below 80% battery power overnight. Is this normal? Or is there a problem with this laptop? If the latter is true, what could be the problem? Thank you.

A:Solved: Laptop Consuming Battery Power When Off

16 more replies
Answer Match 45.78%

I have an hp pavilion dv5 w/vista, when I try to pwer it up it starts and I can hear the fan but after about 15 seconds it all stops. the lights on the keyboard stay on but nothing happens.

honestly I already gota new laptop I just want to get the music and files off that computer. luckily I already got my pictures off of there before it went down.

I do not have any disks etc... I found the paperwork it came with it said I should have downloaded them.. oops

I tried unplugging the battery and restarting but it still does the same thing

any ideas? thanks.

A:Solved: laptop wont start up but has power

16 more replies
Answer Match 45.78%

When i plug in the power cord to the side of the laptop the icon on the bottom right says the cords in the it also says not charging. I have a HP computer and when its charging a light comes on. But the lights not on and my battery dies even though its plugged in.

A:Solved: Power cord not charging laptop

If the cord is good the pblm should b the battery

1 more replies
Answer Match 45.78%

First, I'm new - so "Hi and thanks for looking!"

Second, I finally decided to give in to my BSOD and make a post on this forum.

The BSOD will appear at random times and has been occurring on my laptop for about 9-12 months. (Both on XP and Win 7 - dual partition)

Current OS - Win 7 pro (but first occurred on xp so I decided to install 7 as well)


XP Media Center Edition 2005 was originally installed.

XP MCE05 was original but then I had to reformat w/o CDs. So I downloaded a torrent for XP MCE05. However, I can't remember if it first happened with the OEM XP MCE05. The current win 7 pro is also from a torrent.

System is about 5 years old

XPMCE05 (torrent) is about 1-2 years old
Win 7 is only 2 weeks old

CPU - Intel Centrino Duo T2250 @ 1.73ghz

Video Card - Mobile Intel 945 Express Chipset Family

MotherBoard - Quanta - 30BB 66.37 - Intel i945gm rev. 03

Power Supply - battery/ac

Hopefully this answered all the basics! Thanks for looking.

A:[SOLVED] BSOD - Kernel-Power 41 - Laptop

You could update a few drivers:
CHDRT32.sys Mon Mar 03 15:10:37 2008 (47CC5B3D)

e100b325.sys Fri Nov 16 13:53:32 2007 (473DE72C)

igdkmd32.sys Wed Sep 23 15:18:09 2009 (4ABA7471)

netw5v32.sys Thu Mar 26 12:10:37 2009 (49CBA8FD)
But it seems doubtful that drivers are the cause, as XP has the problem too.

Run some hardware diagnostics, see how those go. Start by running all three Prime95 tests: CPU - Stress Test with Prime95 - Windows 7 Forums

Run Memtest86 as well: RAM - Test with Memtest86+ - Windows 7 Forums

Log Name: System
Source: Disk
Date: 2011-02-14T09:52:20.800
Event ID: 11
Task: N/A
Level: Error
Opcode: N/A
Keyword: Classic
User: N/A
User Name: N/A
Computer: Marc-PC
The driver detected a controller error on \Device\Harddisk1\DR1.
That is your OS hard drive. Be sure to run SeaTools as well, on that account. Run the Short and Long DSTs.
...Summary of the dumps:


Built by: 7600.16695.x86fre.win7_gdr.101026-1503
Debug session time: Fri Feb 18 22:26:23.489 2011 (UTC - 5:00)
System Uptime: ... Read more

7 more replies
Answer Match 45.78%

I'm looking for a Balance laptop power adapter. I don't know anything about this computer except that it needs a power cord. The battery pack is a Li-ion EM-520P4G Lithium ion battery pack. It says 14.8V. Does anyone know what I need to get? A picture of one would help also.

A:Solved: Balance Laptop power adapter

6 more replies
Answer Match 45.78%

The situation: Dell Inspiron 600M. Laptop won't turn on, when I press the power button, no response (at all). I think it's either the power supply or the adapter. The only reason I think it is the adapter is because the green LED doesn't come on, but the user said it hadn't been coming on for some time before the laptop stopped working altogether. The user has already gotten a new computer and really only cares about the data. I'm trying to decide the best direction to go: Adapter or SATA/ATA to USB converter? I'm pretty set on the converter, but want to make sure I won't have to reformat the HD for it to work with the adapter. I think the laptop has a PATA HD connection. Will it work on most of the converters?
Another side note: I have had no success yet finding another adapter that worked. I did try an adapter for an Inspiron e1705 (90W) and when I plugged it in it reset the adapter. I thought the adapter for the 600M was also 90, but I guess not.

A:Solved: Laptop-Power Supply or AC Adapter

11 more replies
Answer Match 45.78%

For sometime my laptop ac power adapter has been making a squealing noise and getting very hot. Now it does not work at all. The laptop will not run off it and battery will not charge. There is nothing wrong with the laptop.
I also noticed that the adapter provides 18.5V 3.5A output
The laptop requires 18.5V 4.9A input.
Is this normal?

A:Solved: Has my Laptop ac power adapter blown?

Yes just get another powersupply....there are some generic ones that will work ...

2 more replies
Answer Match 44.94%

Computer info:
Laptop, Toshiba Satellite A100
OS: Windows XP, 7
Intel Duo Core 1.6Ghz

Monitor Info:
Samsung 2243SWX LCD Monitor
Connection: VGA

The issue:
I just bought the above monitor for use with my laptop. Everything works great except for one thing. When the laptop is plugged in to AC power there are horizontal lines running up and down the screen. Sometimes it gets worse and the sides of windows open on the screen, and text become jittery & jagged looking.

If the laptop is running on battery power the image on the monitor is perfectly fine.

I have tried the laptop with different monitors, and the same thing happens. I have also tried the monitor with different computers and it works just fine, leading me to assume the issue is with the laptop itself. Thinking it might be interference of some sort I've also tried a heavy duty shielded VGA cable, a different AC power cord, USB-to-VGA adapter, and different wall outlets, all with no improvement.

I can't think of anything else to try short of taking it to a Toshiba service place to have it looked at, but I'd rather not have to pay that much money on a 3 year old laptop.

Any ideas/suggestions/help would be appreciated!

A:Solved: Horizontal lines on LCD monitor when laptop is on AC power

9 more replies
Answer Match 44.94%

soooooooooooooooooooo... im pretty much about to kill my self. i have had my xps laptop for about a year and had minimal problems with it, a missing file here, a failed prossess there, but this is annoying and no one at dell support can help me!!! i hope you can...
ok enough over reacting, whenever i turn on my laptop with the power cord in everything is just peachy, but when i try and go portable and unplug my laptop from the wall somthing happens with my display. it starts up fine shows the whole dell loding screen with the boot options, then the screen goes black and i here the same old ding da ding that all microsoft programs make on start up but i dont see the vista logo it just stays black. i tried leaving it there at nothing happens, so then i typed my password like i was going to log in and pressed enter, i heard myself log in and all my apps start up but my screen remains black. my fan dosent work, but my lcd lights still do. but like i said it works fine with the power cable.


A:[SOLVED] My Laptop Wont Start Without Power Cable!!!!

Check your power settings (while the 'puter is on AC, of course).

two other posibilities:
the battery contacts might not be in full contact - to fix: remove battery, clean contacts and make sure they still have a little spring or bounce to them. (if they don't bounce a little, they might not make full contact)
the battery may no longer be holding a charge - only fix for that is a new battery.

4 more replies
Answer Match 44.94%

power supply light comes on(on the laptop) when plugged in then when i boot my Laptop up it charges for about a minute then light goes off, can you help please
I left it plugged in last night and light was still on this morning, switched laptop on and it was charging then stopped, shut laptop down and nothing(no light)
tried wiggling wires and stuff like that then left it alone for a bit, went back to it light flashed on a few times then it came on, switched laptop on and it showed charging then light went off and it showed not charging.
Did this about three times.
tried it again later, light came on full, no flashing first, was on for half hour or so, switched laptop on and it showed charging then light went off and it showed not charging.
because of the flashing then full light i am thinking it is the power supply(lead and powerpack)
please tell me that is probably the case
Yours desperately

A:Solved: power supply light comes on(on the laptop) when plugged in then goes off

6 more replies
Answer Match 44.94%

I'll keep it simple...

here's the problem. The back of my Hewlett Packard Pavilion ZV5000 where the power cable plugs in slips out alot. Is there any way to make the power plug not slip out so easy??? Maybe attaching some scotch tape around it to make it not slide out so easy?? What is an idea?? Does anyone have any ideas?

A:Solved: unusual Laptop power outlet problem

8 more replies
Answer Match 44.94%

I am looking for a power supply that is adaptable to 12-volt and 110-volt source for my Dell Latitude D520. I am having a problem with identifying its tip (that plugs into the laptop). I know these things have names or numbers; but, I have no way of identifying mine.

Checking its dimensions with a digital caliper, the outside diameter of its barrel is appx 7.37mm or 0.29 inches. The inside diameter of its barrel (to the best of my ability to measure it with this tool) is 4.9 mm or 0.2 inches. The pin in the center is wire thin, possibly smaller than a mechanical pencil's fine lead.

The charger I'm looking at presently is this one; but, I might change my mind as I haven't satisfied myself this is the best I can do for the capacity and the money. I would really rather have one with a 120- to 140-watt rating; but, that's beside the point of my question right now.

I have included a scan of the charger's tip that fits.

A:Solved: Need to identify this laptop power supply's plug/tip

10 more replies
Answer Match 44.94%

I am trying to fix a Lenova Y550P that has a problem charging. The lady said she dropped the laptop. It is working on battery, but is not working on A/C power. When I remove the battery the laptop is not powering on and when I run it with the battery in and A/C power connected it is not re-charging. There is no light where the power chord goes into the laptop, but unsure if there was prior to the problem starting. What steps can I take to fix this problem. Thanks

A:Solved: Lenova Laptop A/C Power not charging the battery

I figured out that the voltage was set to 15V and that it should have been set to 19V. All fixed.

1 more replies
Answer Match 44.94%


The switch that I press to turn on my Acer Aspire 1693 laptop has been temperamental for a while, but hsa now finally packed in. I took off the plastic panel to have a look, and it's on of those "pop-up" switches. I can only describe it as being similar to a jam jar lid after breaking the seal, where the metal lid "pops" up after pressing down. In my frustration/desperation I have dug out the inside of the switch, hoping that I could bypass it by shoving a piece of metal between two points every time I wanted the laptop on, but to no avail.

Once I get it on this once, I'll be OK cause I'll just "Standby" instead of Shutting Down, cause I'll be able to use the space bar to turn on the laptop.

Can anyone give me any advice on this? Is there a way to replicate the power button's function by using a combination of other buttons? What is the best way of bypassing the switch electronically (i.e. by completing the circuit)? Also, if all fails, will it cost me an arm and a leg to get it sorted in a shop?

Thank you.

A:Solved: My laptop's power switch is bust. How can I bypass it?

7 more replies
Answer Match 44.94%

My laptop will not stay on adapter power unless the adapter plug is pressed hard against the port. I bought a new adapter but the problem still remains so I guess it's the port's problem but I have no idea how to have it fixed. The laptop is no longer under warranty. Where can I buy a new adapter port and would it be too much like brain surgery to try to do it myself?

Thanks for any help,

A:Solved: Power adapter port on laptop - how to replace?

These ports are soldered to the motherboard. Replacing/repairing them consists of removing the motheboard from the laptop and soldering a new powerconnector on.

Definately not a do it yourself type thing. I would suggest a competent local computer shop. This service usually runs around $100 in my area. The challenge will be finding someone willing to work on laptops anymore.

1 more replies
Answer Match 44.52%

Hello again,

I have seen these adapters that you can plug into a cigarette lighter outlet in a car, and use as the power source for a laptop. I tried before with one, but am not sure if it was the right wattage or what not.

My question is, where will I find on my laptop to see what type I will need? What number am I looking for to match up with the adapter? Also, are these adapters good?


A:Solved: Cigarette Lighter Adapter power source for laptop

7 more replies
Answer Match 43.68%

I just received my replacment AC adaptor. I put my battery back in and plugged the laptop in, but when i push the power button the battery indicator light flashes red four times. There are no lights on. Does this mean my battery is fried. Originally i thought the jack needed replaced, but the guy told me it was just my cord which Best Buy confirmed. So after getting the new cord i have this new problem. Usally there is a battery indicator light on when the battery is in and it is plugged in. I tryed taking out the battery, unplugging it and holding the power button down, but that didnt work. I also tryed it without the battery in. Is my battery just bad? Thanks for any help.

Thank you,

A:Solved: battery indicator light flashing red when power button on my laptop is pushed

Try plugging the laptop in and then push the power button. I have had the same thing happen to me when the laptop would only work when I had it plugged in. I had to replace the battery.

3 more replies
Answer Match 43.26%

I have a Dell 8600 about two years old. When I plug in the AC adapter, it intermittently fades to the battery as though the plug was pulled out (its not) and of course the screen fades in an out when every time it swithces--it does it every 30 to 60 seconds or so. I switched to a different AC adapter (I have a Dell 600M with the same AC adapter)-same thing so I know it is something internally. Any ideas?

A:Dell Laptop Power Supply Fading In and Out--power jack is bad or loose?

14 more replies
Answer Match 43.26%

I have had my Hp laptop for 3 years now. It has been working perfectly, up until 2 weeks ago. It would not turn on when I clicked the power button. After clicking the power button, 15 minutes later I noticed it just came to life. Sometimes it doesn't turn on at all for days, but sometimes I click the power button and it boots within 15-30 minutes. When i click the power button, nothing happens at all for that duration. No fans, no lights nothing. The only light on is the power cord button that is always on when i plug it in. I did replace the power cord, and tried cleaning out the insides, it did nothing. Should i just replace the motherboard?

Ps. Hp pavilion dv6-6c43cl

A:Hp laptop takes 15 minutes to power on after clicking the power button

See if your mobo has a power switch on the actual board itself. Power it on that way and see if the problem persists

4 more replies
Answer Match 43.26%

The tips I got with this Kensington 33197 power adapter have numbers stenciled on them like N3, N5, N19, etc. The tips sold on their web site make no mention of the "N" numbers and have numbers like K20059, K20050, etc. and there is no cross reference.

You can also see a complete reference for "N" numbers to all the laptops they support at the above link. Again, no mention of the numbers Kensington uses on their site.

I need a cross reference for these kinds of numbers.

Kensington referred me to their telephone tech support; but, there is a language or cultural barrier that prevents their understanding what I need.

Does anyone know of such a reference?

A:Need power tips reference for Kensington laptop power adapter

6 more replies
Answer Match 43.26%

Hello, I have a one-two year old Compaq Presario and it has stopped receiving power a couple of months ago. The battery currently doesn't work. I took it in to Micro Center, and they saudered the power port. That fixed the problem temporarily, but, two months later it stopped recieving power. I would really like to get some stuff off the hardrive, but to do that I would have to give power to the laptop. So my question to everyone is, is there any alternate way I can give the laptop power? One more thing, the power cord works perfectly.

A:Compaq laptop wont power, I need an alternate power source

Same problem here

I am having the same problem with my Presario Laptop x1015.

I sent it in for repair once, but it is happening again and I can't find my receipt so they won't honor the warentee. Bought it last Feb. Funny thing is that Compaq told me that this is
not a common problem and tried to blame me!!!!

If you know of an alternate source please reply or email [email protected]

8 more replies
Answer Match 42.84%

Earlier this afternoon I switched my power settings to power saver as my laptop was dieing.

I shut it down like this.

I hooked it back up to power and switched back to high performance power setting.

However, while playing games the performance is horrible. I even switched back to power saver while playing and it made no difference.

Any ideas?

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Answer Match 42.84%

Hello, I have a ProBook 640 G1 that will not power on. After pressing the power button, with a battery installed and the AC adapter attached, the Charging LED blinks white 9 times . Unplugging the AC adapter results in 9 amber blinks. The light on the AC Adapter itself remains solid green. With the battery removed, and attached to the AC Adapter, three lights blink continously : The light on the power button (white), the Charging LED (AMBER), and the Power LED (White). The light on the AC Adapter itself remain solid green. In both cases pressing or pressing and holding the power button has no effect. There is no indication that power is actually making in to the MB; no BIOS , nothing at all. I do not have access to another unit with the same battery or AC adapter in order to try swapping those out. Thanks,Shane 

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Answer Match 42%

Now the laptop DELL 9400 is saying I cannot defrag because the battery is too low. But I dont use the battery at all. I always use the ac adapter cord.
Is there a setting to address this issue, or is this a hardware problem?

A:Using AC power but laptop shows using battery power

Turn off the laptop, remove the battery and then start up again (with the AC power attached of course!). Do you still get the problem? Or does the laptop not turn on at all?



1 more replies
Answer Match 42%

Needing some advice please. I have a HP Probook 6470b laptop which a friend wants me to fix again, at one point he dropped his laptop and had the same power fault and when I discharged the CAPS and turned it on it worked, however this time trying the technique isn't doing it. I've tried with discharging and only putting in the battery, discharging and only putting in the AC adapter, discharging and put in both Ac adapter and Battery, I've tried taking out the HDD and RAM and tried discharging, I've tried taking out each individual component and testing but to no avail. At this point I'm thinking a motherboard issue as I'm thinking that my friend has dropped it plenty more times as I see more dents on it which could have broken a copper track. Does anyone else think this is a suitable diagnostic? I've ruled out the battery as I'm getting 10.55V output and the AC adapter I'm getting 19V as it states it should be. I'm asking if this diagnostics seems correct as I don't want to waste money or time on getting a motherboard if it's not the motherboard but I'm thinking that's the best bet. Cheers

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Answer Match 42%

Hey, got quite a problem with my laptop.. It's a Medion Erazer X7813, worked well for ~2 years.
I was doing a graphics card benchmark yesterday and it stopped in the middle of it(monitored temperature, it was at ~80 degrees Celsius when it turned off). No bluescreen or anything just off and I couldnt restart after that(no fans nothing). I thought it might be the power supply, so I tested it, but it was doing 19v when not plugged in, but when I plugged it in and unplugged it again it was at 1v. When testing I unintentionally shorted the power supply and it showed 1v after that just as it did after plugging it in, is it shorting inside the laptop? Could it be the battery or something more serious like the MB? Any ideas are welcome!

A:Laptop gets no power, power supply seems to be working

The charging circuits on the laptop motherboard may be shorted...

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Answer Match 42%

From many days the battery icon is missing from the taskbar, the notification icon is greyed out even if the laptop is not on AC. i followed the the tutorial System Icons - Enable or Disable but nothing happened. please help...

A:Power Icon Disabled even if laptop is not an AC Power

My computer is Windows 7 ultimate 64-bit. I have used system restore, registry cleaner from glary utilities and done sfc / scannow also, but nothing happened.

3 more replies
Answer Match 41.16%

Recently my Inspiron 8600 started booting with a black screen. Shining a flash light on it, I could see login prompt then XP desk top. This kind of thing usually points to the Inverter; however, both the CCT (Cold Cathode Tube) and wiring could also be the source of my problem. I have dismanteled the display down to removing the bezel and freeing up the LCD panel. Where do i go from here to be sure which component is the cause f my problem?

Thanks in advance

A:LCD inverter?

To be honest, the best way is by substitution of the inverter or the backlight. Whichever fixes it is the problem.

The high voltage produced by the inverter could be measured with an appropriate meter, but as it is effectively a ballast the results could be affected by the CCT backlight, it may be hard to deduce just which is the problem. Open circuit voltage would also be inconclusive, it could still be a defective inverter that falls over with the load and fails to strike the CCT.

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Answer Match 41.16%

Does anyone know how to check a power inverter using a meter?
Most websites use the tried and true light bulb method.

Sony VAIO pcg-fxa49


Set the meter to 120 Volts ( 240 if you are in Europe ) and stick both leads of the multi-tester in the two slots next to each other

1 more replies
Answer Match 41.16%

I have a five year old Dell Latitude D520 that I think has a bad inverter. When I turn it on everything works OK, except the display flashes at a 3 or 4 times per second rate. An external monitor does not do this, so I think the inverter is bad.

Trying to decide if I should put another $20 into this laptop, as I have already replaced the motherboard, charger and two batteries.

A:Is It The Inverter?

7 more replies
Answer Match 41.16%

have an acer aspire 5920 lap top and i have sent my laptop to get repaired only to have it break down again. The trouble is the inverter or thought it was but when i opened up the top of the laptop to see if it was the inverter that was giving me trouble i found out that it was not that at all. On the left side of the inverter there is a plug which i believe goes to the video part. If i follow this wire which is attatched to the inverter i come across one of these plugs that attatch two wires together and also a ribbon wire which also has a plug on it. This is some what loose cos when i touch it the screen goes blank. What i want to know is what are these called and how can i fix them.
thx in advance


6 more replies
Answer Match 41.16%

Here's the problem -
4 year old Gateway laptop, LCD went dark suddenly (could just make out screen in certain light.)
I figured out it was the inverter, order a new one, and installed it.
Hooray, everything worked fine. Bright clear screen.
I'll say here that the drive was wiped, so when it boots it boots to "No OS found."
Booted it up and left it alone for it to charge battery. Sat for 1/2 hour with no problem with "No OS found" bright and clear.
Re-booted to begin install of OS and it lit up, showed 'No OS found" for 60 seconds, and then goes completely black, not even faint.

So I can't tell now if this inverter went, backlight is shot, or ????
Since it starts every time bright and clear I have no idea. It just goes black 60 seconds after I turn it on.

Any help would be appreciated.

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Answer Match 40.74%

Can anyone tell me what voltage I need for my notebook for the truck. I have seen various prices from 199 to 59 Cdn dollars. Best Buy, Office Depot want 170 to 199. Radio Shack can offer me a 175 voltage for 59 Cdn. Thank you in advance for your help

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Answer Match 40.74%


I'm repairing a friends Asus A6000 laptop Lcd and cannot find an inverter
for it. I've tried ebay but no luck.
Could someone please help.


A:need help sourceing lcd inverter

Asus themselves maybe?

3 more replies