H712b= -44Vdc is good.
Maybe check resistance of R722 (27k) incircuit, amp powered off.
Smoking R735 is a sign, 0.5W equates to 70mA. this would be driving H002 hard,
it may be damaged however not the cause. H714 may be shorting. When you have
some spare time measure H714 b/c/e voltages to GND. Measure at adjoing parts
J702 TP(e), R735(c) and R728(b)
Maybe check resistance of R722 (27k) incircuit, amp powered off.
Smoking R735 is a sign, 0.5W equates to 70mA. this would be driving H002 hard,
it may be damaged however not the cause. H714 may be shorting. When you have
some spare time measure H714 b/c/e voltages to GND. Measure at adjoing parts
J702 TP(e), R735(c) and R728(b)