| 摘要 |
The picture tube of a television receiver includes, inter alia, a plurality of electrodes to develop and accelerate an electron beam, and a phosphor screen on which the electron beam impinges. A deflection generator is coupled to a deflection winding for generating scanning current to produce a sweep of the electron beam across the phosphor screen. A remote control circuit develops an on/off command signal for switching the television receiver between normal run and standby modes of operation. A first switch is responsive to the command signal and disables normal generation of the scanning current upon the occurrence of the off-state of the command signal to inhibit normal sweep of the electron beam. A second switch, also responsive to the command signal, applies to one of the electrodes of the picture tube, such as the grid electrode, a blocking potential upon the occurrence of the off-state of the command signal to suppress generation of the electron beam prior to the disablement of scanning current generation.
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