Replaced Power Supply Board; however, TV still switches off after about half an hour.

There is a short or ground some where that is frying your supply board

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.

I have sound but no picture heard the pop

The tv power supply board it is the problems and the causes.The tv power supply board had problems before and was slowly dying that why it take up to half an hour for the tv to power up and get picture.That the board where the tv a/c power cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish tv power supply boad for the replacement.

Good day!!!!


please try to check if you have bulged on the top capacitors on the power supply board...


if you have bulged capacitors please replaced it only with the same type,ratings and value...


Thanks for using fixya...

Hello,

It's the problem of overheating in the power supply board of the Television.on the power supply board of the Television there are few capacitors and IC.any of this IC is got short or may be weak.so due to this when you start the Television the current passes from electric outlet to the power supply board of Television.but when the current passes from that weak/faulty part at that time current gets stopped or slow and the board overheats and Television shuts off. this is a common problem faced by many other users too.the possible option to solve this issue is to check the power supply board by a meter and continuity tester and replace the faulty component on the board which is short due to which power supply board is getting overheated.its bit technical job but yes its not at all a costly repair to do or get it done by the technician. for required parts it can be easily available from local electronic hardware shop television
This will help in solving the problem.....

The tv power supply board have problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

No,the effect will take longer and longer to turn on tv and dies all together later on.Power supply board have parts call capacitors,have problems.These capacitors parts on the power supply board are dying and have leaking gases.The board where the power a/c cord plug into it.That the power supply board.Searches the power supply board.U now basic eclectronic's,have tools and know basic slodering?These dying capaciitors parts are alway bulges up on it tops or puff up on it tops,must be replaced.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Take ur tv aparts.Ur tv power supply board,that the board where the power a/c cord plug into it.That is ur power supply board.Replaced the power supply board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Ur tv power supply board is dead.Replaced the power supply board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.