Re: Voltage level on LCD power supply board.



The blue poly cap was the problem on my board. Once it was replaced; the TV worked normal. Have you checked the voltages on the board? That might help trace the problem.
You say that you can hear something. I was as hearing a buzzing sound, but I don't think it had anything to doi with the problem....

Re: Voltage level on LCD power supply board.



I have looked just about everywhere and I can find no one which has a cap to these specs that is the right size. The cap has leads that are about 1 inch apart. Can anyone help me by finding a direct replacement or telling me how to make a different size cap work in its place?

Attached another picture to help show the size.

Thanks again for all of your help....

Re: Voltage level on LCD power supply board.



Here is a close up of the blue poly cap. It is definitely not uniform in width from one end to the other. I am willing to replace this if I can find a replacement. Thanks for your help....

Re: Voltage level on LCD power supply board.



I have attached a better picture because I really need some help on this. I also included a stock photo of a replacement board for comparison. If the blue capacitor is bad where would I buy a replacement, the printing on the side of it is hard to read.
I want to thank you all for any and all help....

Re: Voltage level on LCD power supply board.



The TV is an Element brand, model number is ELCHW402. Mfg board number Element 125372.
The caps along the top have what looks like a mark from the factory.
Have not tried the 12v with all boards disconnected, was not sure what that would mean anyway if it did work.
As far as checking the caps mechanically, I don't have the means.
The screen back lights are not coming on, have not tried the flashlight method yet.
I got into this because I had just started doing some monitor repairs for...

A friend that I work with brought me his LCD TV hoping that I could fix it. I originally suspected that it had bad capacitors but after getting the back off and did a visual inspection they all looked okay. I know that the can be bad and look okay externally but I thought I would do some more research before buying all the caps and spending all that time replacing them.
My main question is the voltage levels on the output which goes to the logic board. The 5v standby levels seem to be fairly good, but when I turn it on to check the 12v levels I see what I think is a problem. The 12v pins...