摘要:
A display apparatus with a cathode ray tube has a degaussing circuit fed by a voltage. The degaussing circuit includes at least a PTC resistor (R) and at least a degaussing coil (DGC1, DGC2). Further circuit elements (12, 15, 17) are provided for selecting an impedance of the degaussing circuit based on said voltage. A process for degaussing the cathode ray tube is also described.
摘要:
A horizontal distortion correction circuit and a display apparatus containing the same are disclosed. The power supply unit has a first group of components for having the complete voltage drop across the first capacitor and a second group of components for rectifying and clamping the voltage produced by the power supply unit; the driving unit has a first driving part and a second driving part for turning on and turning off said switch unit respectively; the control unit has a third group of components for taking the voltage across the first capacitor and a fourth group of components as peak detector for only having the East-West parabolic signal across the first capacitor.