| 摘要 |
PURPOSE:To dispense with a specific dedicated terminal for the start of an aging operation and to prevent the aging operation started accidentally by starting the aging operation only when reception data shows a specific value. CONSTITUTION:An aging jig 9 is comprised of a sequential circuit to output data decided in advance synchronizing with a clock sent from the clock terminal 7 of a portable automobile telephone system 1 at the time of applying a power source. The automobile telephone system 1 sends out the clock from the clock terminal 7 when the power source is applied. Also, the data sent from the aging jig 9 is read, and when coincidence with the data decided in advance is obtained, the aging operation is started, and an operation as an ordinary automobile telephone is started when noncoincidence with the data is obtained. |
