Signal processing method and mode switch for magnetic recording and reproducing apparatus

摘要

A mode switch (9) for use in a magnetic recording and reproducing apparatus such as a VTR as well as a signal processing method therefor, in which the mode switch uses a small number of terminals and is prevented from misdetection when noise occurs. If the logic of an output from the mode switch (9) is checked, the output is determined based on an order preset for loading or unloading only if a predicted logic is obtained.