My YSD2 did the usual blinking lights deal and went overseas for 3 months for repair. Was working great until this week when it now ONLY fires at full strength. Dialling the power down does nothing. Do I need to banish it to another country again for repairs or is this something I can fix easily? Frustrated by seemingly endless reliability issues ... please help! I should add, I've swapped out the batteries and fibre optic cable to no effect. And I'm having the same issue across 2 different cameras and housings.