According to the experience of the past In power in Q801, Q802 Q803, D844 can normal boot. But the real threat and has not ruled out, and 3 without soon. The real worry is C811 (2 kv 1000 p) and C837 (2 kv 1200 p) these two absorption of high voltage pulse capacitor. Measured with a multimeter and capacitance meter is no problem. Maintenance must pay attention to the new it, or else the devil.iyFservice manual download site