/vr/ - Retro Games

2 days ago was playing with the settings on my Trinitron, adjusting color and H/V size, configured everything just fine and turn it off, today i tried to play sme games and now sound is completely off on every input, BUT strangely enough, if i enter service mode i can hear sound working on TV RF mode, however, if i press vol+ or - or if i change the video input, sound goes off again.

I realized sound is working because i thought i might have disabled it on service menu without realizing it, but starting the TV on service mode using display+ channel 5+ vol up + power on, i can hear static audio since theres no coaxial cable connected.

What could be the poblem? its a Trinitron kv 27fs13 NTSC. To me it sounds like the main IC got corrupted or something.