Kenwood a901 dead. I already chaged all components?

Hi there

My kenwood A901 is dead I already changed some broken components. The triac, and the 0,15UF capacitor. The 47nF is fine. I also changed the to resistors to a 2W and a 3W.

This is the list of components I used
Triac is a BTA16-600BWRG
Capacitor is a Y2 CAP 0.15UF 300VAC

I saw in an other tread that the triac should be a BTA08-600B. I guess that it should then be ok to use the BTA16-600BWRG since it is a 16 Amp instead of 8 Amp. Is that corect? And is the capasitor I used also ok?

If so what would be the next step to find the fault.

I hope someone can help.