| 摘要 |
PURPOSE:To indicate display items sequentially as designated selectively by altering a part of display items in response to a switch signal selecting items to display based on the contents sequentially changing contents in response to the input of the switch signal. CONSTITUTION:When manually correcting the display, initially, minute with a short cycle alone is read out or minute and second are performed simultaneously with a switch K1 at the normal position and then, a switch K2 is closed to reset a second divide-to-60 counter 8. Then, the counting of a minute divide-to-60 counter 9 is advanced quickly by a specified counting adjustment frequency of 1Hz or higher. After the time signal or the like is sounded, the switch K1 is closed to set the time exactly keeping minute read out. Then, the switch K2 is turned OFF to reset the section from an FF to receive a liquid crystal driving frequency f as input to the counter 8, the condition which is held whild a specific counting state of minute is held. Thereafter, the hour, day, date, month and year are corrected in that order to match the current time zone and calender irrelevant to the time signal. |
