You replaced Q603 and C19?
If I recall, C19 is not electrolytic, isn't it a bi-polar….it looks like an electrolytic but it is not.
Is it blowing the fuse?
There are 2 gray resistors that can potentially burn out, I would need to look at old posts but I think there is a repair log that talks about them. There aren’t that many, check them all. But if one is blown there is a reason why, they are not the cause.
Mine was doing the same thing but after replacing Q603 it started working. I also put a cap kit in because these Tatungs are known to have questionable/low temp capacitors, plus they are over 20 years old.
I found a note to check IC1 and C703
Then you get into IC101, the multi pin IC. I think there is a note on how to check for shorts on it.
Updates appreciated if you have any luck.