This phenomenon still belongs to switch power itself or its load has short-circuit sex fault due to, will line circuit disconnect, then received Shang fake load (60W/220V bulb) boot test, measuring line output tube set electrode voltage up to 250V (normal should for 110V), other each group output voltage basic normal. Dang disconnect line output transformer II feet by received of fake load output Shi, plus Electric measuring line tube c very voltage for 250V, dang received Shang load output Shi, II feet voltage quickly down 40V around, Subsequently disappeared as 0V. partial short circuit concluded that the horizontal output transformer, Flyback transformer with the same model after the change, everything is normal.


Note: this failure is common, the models used by the line output transformer failure rate is high, and showed much the same phenomenon.