| 摘要 |
PROBLEM TO BE SOLVED: To clearly inform a user of the analysis of a time code again by once returning a second hand to '0' position when a reading error occurs in the case of analysis of the time code, and then continuing the reading of the code and the analysis while again handling the hand. SOLUTION: When a microcomputer 21 detects an error in a time code analysis, a second hand is returned to '0' position, the second hand is again driven at each one second, and a minute hand is also once returned to '0' position to meet the reset of the second hand to the '0' position, then the hand is quickly fed to the original hand position, and normally handled to meet the second hand. A zero setting operation is conducted by rising pulses so as to output the handling pulse of the hand to second hand, minute hand and clock drive motors 41, 42, 43 by an interrupting, then falling the pulses, detecting the position detectors of second hand, minute hand and clock position detectors 51, 52, 53 by interrupting after predetermined times, detecting whether the hands of each one pulse output arrive at the '0' position or not, forward or reverse quick feeding the respective hands to the '0' positions. |
