Colleagues have a good night. I want to ask your help to see if I can repair this equipment in reference. At first it has no lighting in the displeay. Where the first doubt assails me, the energy to feed it is AC for the filaments which, of course, are not there, but if there is 24v DC, I don't know if it is correct. In the second I don't deny you audio but there are 24 v. Positive and negative. For the tda7292. Touching it with the wet finger gives me exit and desolde it to see if it was the cause of the blockage but the same thing followed. For this reason I appeal to you that I know that you have had these inconveniences and I am willing to receive all information thanks in wait.

For those who helped me a hug and blessings the solution was obtained by freeing pin five of the tda 7292 I returned the audio. I also commented that it was not possible with the reset. Anyway, he is a more satisfied customer.