| 摘要 |
PURPOSE:To make the flow of an assembly line smooth by containing a control substrate and a battery substrate in a substrate base, and handling it as one function parts at the time of assembling a main body. CONSTITUTION:In a substrate base 21, on the surface side, a liquid crystal display element 22a for displaying the present time, an hour switch 22b for advancing the present time by one hour each whenever it is depressed, and a minute switch 22c for advancing the present time by one minute each whenever it is depressed are contained. Also, on the reverse side, a control substrate 22 provided with a 10-minutes key 22d for advancing the present time by 10 minutes each when a signal is received, a control substrate 23 provided with a test point 23e and a test point 23f for inputting an AC power source for operating the circuit to the reverse side, and a battery substrate 28 provided with a lithium battery 28a being a primary battery and a board-to-board connector 28d to which a connector itself can directly be connected without interposing a lead wire, etc., are contained. |
