LG 42LX6500 no audio

Hello!
I wonder if anyone can enlighten me. This TV was working fine until it went "plof!" while watching, and since then, the audio hasn't been heard.

The MAIN board is EAX62116804, and the audio controller is an NTP-7100.
Visually, I can't detect any damaged components.
I've taken the following measurements on the NTP-7100:
Pin 3 ... 3.3V
Pin 8 ... +3+3v_MULTI
Pin 12 ... 1.8V
Pin 16 ... 1.8V
Pin 22 ... 0V
Pin 32, 33, 34, 35 ... 21.6V
Pin 49, 50, 51, 51 ... 21.7V

On the speaker connector, I have 1.2V on all 4 pins.

I've measured the speakers, and they're fine. Still, other speakers have been tried, and they don't work either.

I have downloaded and updated the latest software and firmware from the official LG website, and it has not solved the problem either.

Any suggestions?

Hello!

Measure the voltages to ground on pins 1, 2, 7, 13, 17, 20, 21, 25, 26, 27, 40, 41, 43, 44 of chip NTP-7100 during audio playback.

Pin 1... 12,5V
Pin 2 ... 5,1V
Pin 7 ... 2V
Pin 13 ... 1,7V
Pin 17 ... 1,6V
Pin 20 ... 2V
Pin 21 ... 3,2V
Pin 25 ... 3,3V
Pin 26 ... 13,1V
Pin 27 ... 12,4V
Pi 40 ... 12,3V
Pin 41 ... 5,1V
Pin 43 ... 13,2V
Pin 44 ... 12,5V

Zemog писал(а):Pin 41 ... 5,1V

Is this measurement correct?

matic писал(а):¿Es correcta esta medida?

I checked pin 41 again and the value is as indicated... 5.1V

Replace the chip NTP-7100.

matic писал(а):Replace the chip NTP-7100

Chip replaced and audio working at 100%

Thank you