| 摘要 |
PROBLEM TO BE SOLVED: To simplify a system structure by grouping a plurality of sets of terminal bodies, distributors, and displays for same product name and type name of a plurality of terminal bodies, and by displaying an image signal according to display information for each group. SOLUTION: A plurality of sets of terminal bodies 11(1) to 11(n), displays 12(1) to 12(n), and distributors 14(1) to 14(n) having a position adjusting function are divided into a plurality of groups A-N for each of the terminal bodies 11(1) to 11(n) having same product name and type name, namely depending to closing degree to frequency of the image signal outputted by the terminal bodies 11(1) to 11(n). In a large-screen display device 32, display information of image signals with different frequencies is previously set and registered so as to display it synchronously to different-frequency image signals according to machine types of the terminal bodies 11. This display information is set and registered for each of groups A-N of the terminal bodies 11 close to the frequencies of the image signals. The image signals are displayed according to the display information for each group.
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