Good afternoon, I have this Philips NTX401X / 77 device which does not turn on and comes from another place that has been checked and taken out of two components, which I would like to know what values they are, the board they are on is the main board 40 -R05WBU-MAD2G, and the components are D4 and ZD2, the D4 is a schottky diode, which is connected to pin 8 of U1 that is a TPS54540, I would like to know the value of that diode or if someone has an image to upload from it It would be appreciated, also the ZD2 which is a zener that is also connected to pin 8. Thank you very much and I hope you can help me.