alright then,
couple of quick checks you can do
R75, R77, R84 ,R85..I don't expect faults but checking won't hurt, they may give you different values depending on the polatirty of your multimeter probes, see if you can work out why before you test them, you could test all the transistors in the circuit and all the diodes, tbh looking at it I don't think you'll find another fault.
Take out the ends of R98 and R99 connected to the output transistors, and then measure the voltages at the ends of the resistors with respect to ground.
I think your capable of judging weather diodes, transistors and resistors check out correctly, If you say thier ok i'll take your word for it, if you wish to post your results back on here thats cool but i'll expect your opinion on here with them
