| 摘要 |
PURPOSE:To eliminate the malfunction in an FF, even if a failure takes place in the waveform of a horizontal flyback pulse, by slicing a sawtooth signal from the horizontal flyback pulse at a prescribed voltage and applying an obtained rectangular wave signal. CONSTITUTION:A horizontal flyback pulse is given to an input terminal 4, and this pulse is given to a sawtooth signal generating circuit 5. The circuit 5 integrates the horizontal flyback pulse and wave-shapes it into a sawtooth wave. This sawtooth wave signal is given to a wave-shaped circuit 6, which slices this signal into a prescribed potential and a rectangular wave signal is given to an FF3. Thus, even if the waveform of the horizontal flyback pulse is failed, the FF3 is not malfunctioned. |
