A device for preventing an unloaded compact cassette adapter from being inserted into a VTR

A cassette setting device, for loading a first tape cassette and a second tape cassette, said second tape cassette being of smaller dimensions than the dimensions of the first tape cassette, comprising:

• a cabinet for housing therein a tape drive section at which the first tape cassette and the second tape cassette may be placed;
• a tray arranged in the cabinet and having a first position where the tray is projected form a front side of the cabinet and a second position where the tray is set at the tape drive section in the cabinet;
• a carriage system for carrying the tray between the first and the second position;
• a cassette adapter in which the second tape cassette may be housed, said tray having means for receiving one of the first cassette and the cassette adapter, the cassette adapter including an unloaded cassette detecting lever to detect whether or not the second tape cassette has been housed in the cassette adapter;
• a lever detecting means, arranged at the ray, for detecting the unloaded cassette detecting lever, of the cassette adapter, to prevent the tray from being moved from the first to the second position when the unloaded cassette detecting lever is detected, wherein the lever detecting means comprises a through-hole formed in a side wall of the tray, said through-hole having a slope that increases from a front side of the tray toward a rear side of the tray so as to guide the unloaded cassette detecting layer;
• and
• a control means, associated with the lever detecting means, for reversing the carriage system so as to project the tray to the first position when the unloaded cassette detecting lever is detected.