[morzh]

Once all is replaced, I would simply smell the power transformer. If it smoked it usually keeps the smell. And if it did, it needs to go even if it works for now - smoke means damaged paper and damaged wire laquer so it is then a question of time when it will smoke on its own.
If it does not smell, then try to measure resistance although I am not sure where to get the data against which you can do the measurement, as it is usually fairly low resistance, and the primary often looks like a short even if it is OK.