distorted feeble audio only

@stalins on a TV the sound is processed on the main board. It is there where you find the audio amplifier IC. It is common for those to fail.

It is also possible but less likely that this is a speaker issue. I would start by taking the back cover off and visually inspect the main board for any damage components.check the main board to power board connector. Measure the voltages on that connector and check the measured values against those printed on the power board.

Temporarily connect a speaker to the existing speaker and see if that makes a difference.

Of course, all of this assumes that you have checked your audio settings in your TV’s menu. Ultimately my prime suspect for this is the main board audio circuitry. If you give us your TV’s complete model number, we can try to locate the IC’s and possibly repair it. Otherwise you may have to replace the complete board.