| 摘要 |
PURPOSE:To remove the waving of a pattern and also to reduce components in number for improvement of reliability, by providing a n-scale counter while omitting the self-oscillator of a high-tension generating circuit used for a TV display unit, etc. CONSTITUTION:A sub-deflection signal inputted from sub-deflection signal input terminal 1 is amplified by sub-deflecting amplifier 2 and then supplied to deflecting yoke 5, where the electron beam of CRT6 is deflected. Part of the sub-deflection signal is counted by n-scale counter 7 down to a frequency at which a boost can be given and boosted by following booster 4 before being supplied to the anode of CRT6. In this constitution, signals for the sub-deflection system and high-tension system are extracted from the same signal supply and synchronized each other to fix the phase between magnetic fields of the both system, thereby removing the waving of a picture display on CRT6. IN addition, components of the high-tension system is reduced in number for the improvement of reliability. |
