Good afternoon dear members of yoreparo, this time I come to you since this team has arrived, a hometheater phillips mod. Hts3538 / 55 which at the beginning the client informed me that it was heard very softly, to the point of having to glue the ear to the speaker. I proceeded to remove the amplifier card and test everything else and so turn on, I can change the commands and inputs, and checking the source I found that the connector that sends voltages to the audio board was zero. At the source the top260n oscillator was broken, so I proceeded to change it and the source delivered the 26 v that must go to the audio board but when I connect the latter the equipment does not come out of standby, but turns off. I proceeded to remove the 3 integrated audio (tas5342a) to see if these were the causes of the activation of the protection but continued with the same fault. Work with a diagram in hand and on the main card there are the corresponding voltages, apparently the problem is in the audio board, measured components in it, including the smd, and all are in their normal value. Please if you could send me some guidance, I would appreciate it, best regards from Santa Fe, Argentina