Thank you very much, colleague ... who recommend me where I can check the audio ic has its voltages OK
You say the hearing aid is perfectly heard? If you see the circuit, the only difference that exists is the resistance that goes to the headphone jack, so I recommend that you check the wiring and speakers well, and if the sound is in the headphones, it means that the audio ic are working well.
if you are right the integrated one is working fine and the horn is ta okey .. in fact probe with other speakers and I have no audio .. and if the headphones are heard perfectly