Hello dear friends, I have a Samsung Tantus TV, KS9A chassis, which I cannot detect the audio fault, I already replace the audio ic and nothing and according to the testing of the components involved are fine, I would appreciate your valuable help and input

place an epron memory recorded for that model or a voiegen the TV will reprogram .... greetings.

hello colleague: collaborating with another suggestion to the aforementioned x the colleague Franciscovallarta .... measured if the 12v of power arrive to pin1 of lc603- AN7522N ... if that is well fixed if it is not in (mute). ..if you are not in mute touch with wet fingers on pins6 and 8 of the audio lc and see if there is any slight buzzing x the speakers .... greetings!

Checked the good condition of the speakers, amplify audio IC and the presence of working voltage ..... You can also try this video procedure: