Checked the diode, one direction gets the overload display, then the other direction it gives a voltage that starts to drop off. The 0 resistors still come up as 0 when tested. The caps all look great, no puffiness or leakage, then I tested the transistors with the diode setting.
I'm not precisely sure which end is E and C on these ;
1st transistor
+ on base/- on E = 729
+ on base/- on C = 731
- on base/+ on E = 772
- on base/+ on C = 1/OL
2nd transistor
+ on base/- on E = 731
+ on base/- on C = 1/OL
- on base/+ on E = 751
- on base/+ on C = 770