MTX 1501D amplifier without sound

Hello guys, A few days ago I got an MTX Thunder 1501D, which arrived with several damaged components. Which were the D326, the R-100ohms and the 42N20 mosfet that are next to it, from what I was seeing in the forum the D326 is a 12V Zener. The truth is that I already replaced all the components. Now the Amplifier turns on but I have no Sound at its output.

Once it is energized, it turns on LED 463, after a few seconds it turns on LED 238, and LED399 remains off at all times.