Question about Televison & Video
If you wish to get some details; check the site linked here. Pull up older posts. https://electronicshelponline.blogspot.com/
faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Screen-shots to defective LCD and Plasma panels are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.
Posted on Jul 09, 2020
Recently I have replaced the main board for this fault. Check the inverter circuit if you can.
Posted on Jun 30, 2015
Fault in 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.
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. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Posted on Mar 02, 2015
Tips for a great answer:
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