Pioneer PDP-502MXE Dead set.

[pan]

Hi all,
Has anyone had this fault?
The set is dead, green LED flashes at times.
Found R108 2.2 ohm 7w on the p/s is o/c, also Q201 2SK2847 is s/c.
I’ve not replaced them yet, done some further cold checks but cannot find any other probs checked for d/js none found.
I just wondered what caused the transistor to fail.
Anyone had the same or similar fault your help will be very much appreciated.
Thanks
Pan