Replace the zener diodes near the flyback, they look cooked on all the A/Bs I have seen. 

These guys are old enough and seen enough stress, that a mod may cause them to fail and therefore, the possibility of catastrophic failure and destruction exists. 

I would change them out when recapping as well. 

For the exact values, I dont know off hand you will have to remove them and look. Also when replacing the diodes, Leave them standing up with extra leads. This will act as heatsink and allow for better dissipation.