Why is my screen blank even though there was sound
The TV was on and suddenly went blank though we could hear the sounds from the channel. The TV was put off and on again but no changes.
What can I do
Hmmm………. this is a LCD . Lcd would suggest an inverter board, or sometimes the power supply will include an inverter that will illuminate the screen. I would suggest you go to the power supply for a fix. Look for capacitor locations C201, C206, and C253. If these are bulged, replace these. Should be a simple fix. Find a electronic hobbyist to do this for you.
Thank you for asking, Matt of Martin’s TV Repair.