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Inverter-mainboard cable broken where i find

Inverter-mainboard cable broken where i find new or how can i fix it.

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I have a 26' Toshiba LCD TV Model: 26WL65G. When I plug in and turn it on it seems to start normally, but when screen turns on blue screen appears as normal and it goes back to stand-by mode...


Note that if it is a backlight inverter board problem you will still have sound. SInce you have no sound I would suspect a power supply or main A/B board malfunction. Do you know how to use a multimeter?

Dec 11, 2011 | Televison & Video

1 Answer

I have a dell 1525 laptop - I replaced the inverter, I replaced LCD the new LCD also had an inverter and I replaced the video card. I still get a faint dark screen. I can hear the music when Winn 7 boots...


Hello, and thanks for using FixYa.

What do you mean you replaced the video card? that is impossible, you would have had to replace the whole mainboard.


Okay you replaced the inverter, I suppose it was a tested and known good condition working inverter? does it work on another machine?

The lcd display, same with inverter? Has it been tested that its backlights work properly?

Then aslong as the small cable between mainboard and inverterboard is connected properly, it should work. But if it does not you have 3 possible causes.


1, Faulty display backlights
2, Faulty inverter board
3, bad cable / inserted wrong or motherboard is not providing the required electricity to the inverterboard.

Oct 16, 2010 | Computers & Internet

1 Answer

Acer Aspire One A150 : screen all dark after changing it


It is an inverter problem. Check all cable attachments first, then change out the inverter.

Feb 17, 2010 | Acer Aspire One A150-1049 Notebook

1 Answer

A samsung 40'' mainboard BN41-00879A no video-no sound I have just bought a new mainboard ------Is there any ajustment on a new board.? or have I got a doa board??


SOUNDS LIKE YOU NEEDED AN INVERTER BOARD OR POWER SUPPLY INSTEAD OF A MAIN BOARD, UNPLUG THE CABLE FROM THE INVERTER BOARD AND SEE IF THE 24 VOLT LINE COMES UP, IF THE 24 VOLTS IS THERE AFTER YOU UNPLUG IT, THEN YOU NED A NEW PANEL, IF THE INVERTER BOARD IS NOT REPLACEABLE

Dec 30, 2009 | Samsung LE40M91B 40 in. LCD TV

1 Answer

Wont turn on It won't get past the start up page. It goes black


Hi,
There are approx 6 reasons why this might happen:
  1. The backlight has gone (Find a dark place and shine a torch into the screen and see if you can see an image in the background, if you see an image then the backlight has gone) - Needs a new backlight (Engineer to remove and fit) or have a new panel fitted.
  2. The panel has died - Need a new panel
  3. A cable has worked itself loose or is broken
  4. The inverter has gone - Need new inverter
  5. Long shot, the bios has got corrupted - Engineer could re-flash the bios
  6. Long shot, Mainboard onboard graphics has gone - Need new mainboard

My personal opinion is that the backlight or inverter has gone - Either way it needs to be opened up to repair it, consult a service centre and get a quote or repair it yourself if your up for it.

Thanks

Sep 10, 2009 | ASUS Eee PC 900 Notebook

1 Answer

Viewsonic VP2130B no Video


First off, on these monitors, usually the power board is also the inverter board. If its not on this model monitor, and you know that by opening it up and seeing the backlight cables connected to a different board, than that may be the problem, but it might not be.

Secondly, Why did you replace the power supply? Were you not getting anything? power light? anything at all?

If you were getting the power light, but no picture (black screen), something else was most likely the problem.

Your problem is probably the backlight. It sounds like its out. Does the backlight come on at all? If it doesn't and you can faintly see an image if you look closely or if you press the menu buttons and see a faint change in the screen, thats the problem. Normally I would say its either the power board OR the backlight, but you say you replaced the power board. You need to replace your backlight. You can do that a couple different ways:

1) Replace the whole LCD panel. This is a costly fix, so if you are adventurous and cheap like me I would advise against it.

2) Replace the backlight panel. You need a screen like yours that is broken, but has a good backlight. That way you get it cheap, because its broken and beyond taking everything apart and putting it back together again, its relatively simply.

3) Fix the backlight you have. There are tutorials on how to do this online, but its harder and more dangerous (mercury and toxins that can cause lots of damage). I wouldn't do this, but if you want to I would suggest doing it in a place with lots of ventilation.

There could possibly be a problem with your mainboard, especially if you see no image AT ALL and you don't see a backlight. If your power board/inverter and backlight are fine, you should see the backlight on, regardless of the condition of the mainboard. If you see the backlight, then the mainboard is the problem. If your power board failed, and the power light wasn't coming on before, its possible that the board fried your mainboard and potentially your backlight (although damaging your backlight is rather unlikely).

In any case, good luck to you!

Aug 13, 2009 | Computers & Internet

1 Answer

My laptop fujitsu amilo 7300 has lost it's picture due to a blown inverter.The new inverter also blew. Can anyone suggest a solution?


you may have to replace the mainboard or buy a new laptop, if the mainboard has already smoked up two inverters, i would not run another risk.

Jul 17, 2009 | Computers & Internet

2 Answers

Lcd back light ptoblem


Could be a problem with the mainboard, or the tube in the screen, or you recieved a dead lcd inverter.
If your not getting voltage to the inverter, but you can see a picture correctly on an external monitor, you may have a bad cable, or mainboard.
Check all fuses near where the lcd cable connects to the mainboard (you may need to look on the reverse (underneath side) of the board.

On one acer I'm currently working on,(that had a smashed screen, I installed a replacement screen, and had the same issue. So I replaced the inverter - same. I tried a good test tube on the inverter - nothing. I then disassembled the notebook and removed the mainboard. On the opposite site to the lcd connector I found a fuse labelled F2 (near a larger fuse labeled F1). This has shorted out.

I would test this before assuming the new inverter is dead.
I suspect that by replacing that you will get power to the inverter.

Unfortunately I dont know the rating of the fuse, however. I presume 12v but no idea on amp rating

Good luck

Feb 24, 2009 | Acer Aspire 5100 Notebook

2 Answers

Pink screen


Dear LT user,

Your LT has one of the following 2 problems: Your LCD cable might be faulty OR your inverter board is malfunctioning.

The LCD cable is responsible for transfering "color information" or "screen data" from the motherboard to your screen. If this cable is faulty or malfunctions, it can result in a lot of appearances - in your case a pink screen.

The Inverter board is repsonsible for the "light" on your screen. If the inverter board is faulty or does not function properly, you might experience this issue.

If your LT is still under waranty, you can give it in @ the nearst HP Warany centre for repairs. If not ; HP parts are very expensive.

What you can also do, you could install an external monitor (LCD flatscreen) to your LT. Because the Flatscreen cable connects to your VGA port at the back of your LT, using an 15 pin blue connector , it connects directly to the Mainboard so it does not run over the LCD cable and thus will be a unit on its own.

Kind Regards,
Stef

Apr 16, 2008 | Compaq Evo N610C Notebook

5 Answers

IBM ThinkPad T21 LCD display very dark


The problem can be at the flexible cable that connecting mainboard to LCD panel. There are two line that connecting to backlight lamp. The position of the broken cable is in bottom-center of LCD. One or more line/track broken can resulting : LCD blank or LCD display very dark. The solution is : jumper the broken line with jumper cable & soldering.Or you must replace the flexible cable.
Goodluck..

Dec 29, 2007 | IBM ThinkPad T21 Notebook

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