| 摘要 |
PURPOSE:To enable actions for maintenance to be safely, securely and rapidly carried out by indicating not only letters and patterns but also images overlapping them or indicating simultaneously letters and pictures divided from each other. CONSTITUTION:When an alarm lamp is it during cutting by a MC unit and failured portions are checked, the inputs of a stationary picture as a display mode command and an alarming No. as an address setting command in first and second video controllers 7, 8 are given by a key board 12. And in a mixing circuit 10, they are mixed by the signal from said controllers 7, 8 and mixing control unit 9 to indicate simultaneously images of an alarm message, alarming procedure indication and correction portion thereof on a screen of a CRT display unit 11. Thus, by observing the screen, an operator can grasp the content of the alarm. |
