Main board is bad what cause this to happen? only had it for less than 2yrs. tv-lcd/dlp major model sk=32h240s serial 5060j72100290 how much does this cost.......

Westinghouse TV SK-32H240S http://legacywd.com/pdf/111_User_Manual.pdf

The voltage source to back light inverteres are from the main power supply regulator board. Check it.

Hello Olga, this problem is normally caused by something on the power/inverter board (normally a transformer or a capacitor). If you are technical you can open up the TV and see what component is bad, you can normally tell because the component will leak or in the capacitors case be puffy. If you are not that technical you can also open the unit and simply pull all the plugs from the power/inverter board (big brown board on the left hand side when TV is facing down), take off all the screws, and replace the whole board. I can assist you with obtaining part #'s for this board if you would like just simply send me an email with the model #, serial # and TW # all located on the back of the TV as well as a brief explanation of what the TV is doing to [email protected]. Please rate my answer if it was helpful, have a great one.

It seems that your unit has some sort of Video side, PSU fault, or a problem to the Video section that is shutting down the Power Supply Unit, PSU. This happens so that no further damage, and possible fire will occur.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done.

This model has what are called a LIPS board in it which is a board that has both the power supply and the inverter on the same board. What you need to do is replace this part and your TV will be as good as new. To obtain this board simply email [email protected] and they will let you know price and availability of this board. Please make sure to include model#, serial#, and TW#, all located on the back of the unit.

Hello, you need what is called a LIPS board which is power/inverter board, in order to get price and availability please email [email protected], make sure to include model#, serial#, and TW#, all located on the back of the unit.

They are not cheap so be sure that they are bad.
You can get the inverter board here:
http://www.lcdparts.net/howto/Instruction/IInverterDetail.aspx?Model=SK-32H240S

Controller board here:
http://www.shopjimmy.com/catalogsearch/result/index/?q=Westinghouse+SK-32H240S+&limit=100
Any bad capacitors in the power supply?
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

one of your transformers probably blew. had same problem with mine so took it apart and saw the problem. did some research. Darfon makes the power board and you have to buy the whole board not just the transformer. could cost you around 200 dollars. best bet is to call a local tv repair company and see if the have spare transformers for that lcd.

This problem is caused from a problem with the main board. The main board will need to be replaced. It runs from $100.00 to $150.00.

You can find one on the 'net but it will not be cost effective.
You will be better off selling your set for parts and buying a new set. The LCD is the major cost of a set and when it goes, it's not worth replacing. Warrantees generally do not cover breakage either.