Question about Sharp Aquos LC-46D62U 46 in. LCD HDTV

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Power supply board broken

I have atx psu, can i use this as a replacement for the powerboard? what total output voltage do i need?

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To know more about this, you have to download the repair manual to this set. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/ Pull up older posts there.

Posted on Mar 24, 2014

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Curtis LCD2425A will not turn on


Good day!!!!


TV won't power ON..
This is the common problem..
Power supply board or main board..

Please try this procedure to determine the faulty parts.

  1. Open the back cover.
  2. Check the input of the power supply board it should have 220vac or 110vac depends on your voltage comes from the outlet.
  3. If you don't have voltage input of PSU..Please or try to replace the power cord.
  4. If you have voltage input on PSU..Please check the output voltage of it..It should have 5vdc for the main board,12 or sometime 16vdc for the audio and 24vdc for the inverter board(back-light).
  5. If you encounter voltage drop on the output..Please check the power supply board if have leak/bulged on the top capacitors..Please replace it with the same type,ratings and value.
  6. If the 3 voltages mention above are normal..Your main board is defective you need to replace it because main board is not for D.I.Y repair due to the surface mount type parts on it..

I hope this solution will be helpful..
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1 Answer

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Good day!!!!


TV won't power ON..

This is the common problem..

Power supply board or main board..

Please try this procedure to determine the faulty parts.

  1. Open the back cover.
  2. Check the input of the power supply board it should have 220vac or 110vac depends on your voltage comes from the outlet.
  3. If you don't have voltage input of PSU..Please or try to replace the power cord.
  4. If you have voltage input on PSU..Please check the output voltage of it..It should have 5vdc for the main board,12 or sometime 16vdc for the audio and 24vdc for the inverter board(back-light).
  5. If you encounter voltage drop on the output..Please check the power supply board if have leak/bulged on the top capacitors..Please replace it with the same type,ratings and value.
  6. If the 3 voltages mention above are normal..Your main board is defective you need to replace it because main board is not for D.I.Y repair due to the surface mount type parts on it..

I hope this solution will be helpful..

Thanks for using fixya...

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