However I must address a few things in your post.
First, I don't ever remember telling anyone that I felt it was a capacitor problem. I go to great lengths to not indicate what i do to repair these boards. And that is my response to anyone that has asked in the past.
I am also surprised at the number of people that think that resonator is the problem. That Pioneer Tech Bulletin you indicate has been out for years and years. Yet I still consistently gets boards from people who have taken there receiver to a Pioneer ACS or sent it to pioneer, only to have it fail again at a later date. Which they then end up sending me their boards.
To date I have probably done hundreds of these boards and have not had any come back again with the repairs that I do. But, I am not going to get into just what I do since I do make a profit on this although it is very small for what I charge. I do it more to help those in need then for the money.
But those who wish to can try changing any of the suggested parts that I have seen posted over the years but as I have already seen, sometimes it will work for a while, but you will eventually end up sending your boards to me. And I will be happy to help.