| 摘要 |
PROBLEM TO BE SOLVED: To smoothly perform operation with a few keys and to prevent an operation mistake. SOLUTION: A cross key 24 is one an for selecting/deciding a setting item and a setting content and can perform upper, lower, left and right inputs by pressing down the key 24 so as to incline the key 24 toward the direction where the cursor is desired to move. When a moving instruction to the right is made by the key 24, a choice where the cursor is located right before the moving instruction is decided to be selected, selection operation is shifted to the lower choice of the choice. In such a case, when the lower choice does not exist in the choice where the cursor is located right before the moving instruction, the choice selected right before the moving instruction is decided as a setting content.
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