Hi Albert,
thanks for your new photo.
I've added other two photos, which shows clearly that the signal at pin "E" it deads at +15V, and so the TD was killed also.
Measuring the signal on two bases of Q86 and Q88, they are just like you said, with a swing of 1 V approx between ON and OFF state, with same voltage levels you indicated.
I strongly suspect that some carbon resistor are out of tolerances, but it's almost impossible to measure them precisely without pulling them off from the pcb.
Q32 is a strong suspect. I don't have investigated its operation, I will do as soon as possible.
Max
