| 摘要 |
PROBLEM TO BE SOLVED: To prevent the application of an overvoltage to a switch element for S curve correction capacitor switching when turning on a power source. SOLUTION: The S curve correction capacitor switching apparatus for a display monitor device is provided with a control means for conducting all the plurality of switch elements just before turning on the power source of the display monitor device, controlling the conduction/non-conduction of the switch elements corresponding to the horizontal frequency of a horizontal deflection circuit set corresponding to the frequency of a horizontal synchronizing signal of an input video signal after the ON of the power source after that horizontal frequency is stabilized, and connecting a S curve correction capacitor suited to the frequency of the horizontal synchronizing signal of the input video signal to a deflection coil. COPYRIGHT: (C)2003,JPO |
