It looks like both F44H11's are blown. If I'm understanding how to test them correctly (Testing a transistor) there is not supposed to be continuity between the collector and emitter (pins 2 and 3) but both of mine have continuity. The other pair checks out OK.
Unless someone thinks I've missed something, I'll fist see if I can desolder them without destroying the PCB and then order the parts with my whistle project.
Since I don't have a desoldering iron, my idea for removing each transistor is to cut the three pins and then remove them one at a time.
![]() ![]() ![]()
![]() ![]() ![]()
![]() ![]() ![]()
![]() ![]() ![]()
|