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i have no picture but a buzzing noise,in the power supply board,but when i unplug the deflection boards on the left and right there is no buzzing noise,but if i plug one or the other i have the buzzing noise ,what do you think power board or deflection board,sign little dog

I really don't know what could be the problem....if i was in your place..ill just buy a new power supply...and see if that resolves my problem.