| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a program reserving device capable of preventing a failure in a program reservation when program reservation information is lost due to an interruption of the power supply. SOLUTION: Program reservation data are stored in a volatile memory 4, and at the same time, data showing the existence of the program reservation data are written in a nonvolatile memory 5, and it is judged whether or not the written program reservation data are lost by comparing contents of the volatile memory 4 with contents of the nonvolatile memory 5 after the power supply interruption is restored, and if the program reservation data are lost, an alarm is issued.</p> |
