| 摘要 |
PURPOSE:To reliably eliminate the generation of an OFF state in case of setting the lowest input or higher from the lowest input by overlapping a conductive pattern or resistance pattern for connecting a fixed resistor for correction of an insulating interval. CONSTITUTION:A fixed resistor R13 becomes a connected state at the position where a slider 14a is contacted with a conductive pattern PD1 and a common conductive pattern PC, and becomes the lowest input setting state. When sliders 14a, 14b are slid leftward, the slider 14a is first contacted with the pattern PD1 and the slider 14b becomes the contacting state with the conductive pattern PD2 and fixed resistors R13, R14 are connected in parallel. Only the slider 14b is contacted with the pattern PD2, and the resistor R14 merely becomes the contacting state. Thus, the open state does not occur in the moving step before and after the insulating interval G. |
