Question about Proview PL926WBi 19" LCD Monitor

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Lcd invertor what is an lcd invertor?

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Hi,

If you are referring to an LCD inverter, this is a an electronic device that converts a low voltage DC into a high frequency high voltage AC. This output then feeds the Cold Cathode Florescent lamps (CCF) which in turn provides the necessary backlight to the LCD panel display. Most inverters are also coupled to a logic circuitry that triggers them OFF during video mute, sleep, hibernation. They can also be designed to supply multiple CCF lamps for LCD display that are 17" or bigger.
Most inverters are OEM products and it would not be surprising to find a Samsung inverter in a Toshiba LCD display.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Apr 21, 2008

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There isn't one! The invertor maybe faulty. Try a new invertor.

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Laptop LCD screen has a faint image or is very dark and i checked Lcd,Invertor, video cable and its working properly . i don't know what to do pls help me.


Sounds like the backlight has gone. What is the make and model - you may be able to get parts or you may be looking for a salvage one.

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HOW DO I IDENTIFY THE POWER/INVERTER BOARD


The invertor board will usually have 2 connections, each with 2 wires (usually white and pink) that go to the screen, thats how you can identify the invertor board

The power board is just as easy to locate... Just follow the wires back from where you plug the power into the TV.

Be warned though, the power/invertor board can contain lethal voltages even when unplugged! Be careful!

I Hope this is the info you wanted.

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1 Answer

No picture just sound


its the invertor board/open back ull see about 10 little plugs going into invertor get number on board or get repaired only takes one to fail for no picture

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Sounds like you have a faulty capacitor on your invertor..Gently press on the screen when there is no picture.is there light on the screen? If so, there is backlight but no video..hence a mainboard or power supply problem..If there is no backlight then the problem is the invertors or the power supply not supplying 24volts. The invertor is located on left or right hand side of screen..Check that all connections are secured and not loose.Check that the power supply capacitor tops on the power supply do not have bulging tops..If not, and voltage is reaching the invertor, then remove the invertor and check for bad solder joints and leaking capacitors.

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1 Answer

I have a viewsonic monitor VX1962WM Model # VS11979 I turn it on and the screen go black in less then a min.


you probably have a bad invertor. you will need to open the case and replace the invertor

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1 Answer

Replacing LCD Screen


it depends on if the exisiting invertor is fine or not. If the panel is being replaced because it was cracked etc, then the chances are the invertor is fine and will not need replacing. Obviously if you don't get the same replacement panel that Dell originally used, then you may have to buy a different invertor & figure out the wiring connections to attach it to the motherboard.

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1 Answer

Light on the screen suddenly disappers


there is a invertor (fluresan invertor) in the LCD. invertor makes your lcd white, bright , lightly.  i think your invertor is breaking down. take the laptop to service.  sorry for my english.

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1 Answer

My 26in Protron lcd has sound but no picture.


the symptom of the flash will be faulty invertors. start checking power supply output and resistance across invertors

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