PURPOSE: To avoid the reduction of the display area of the main part of picture data by displaying the other picture data linked corresponding to the discrimination of the prescribed area of the certain assigned picture data on a screen.
CONSTITUTION: In a data display device 1, when an operation part 3 is operated as prescribed, the picture data of a certain page where description on a failure A of an adjusting manual stored in a storing device 4 is made and the certain picture data of a circuit figure 53 are read, are stored in a RAM memory M temporarily and are displayed on a screen 5a as displayed in a separate figure (a). A prescribed area 52 of the picture data is set by the prescribed operation of the operation part 3. Moreover, a message for discriminating linking, 'failure=A', for instance, is assigned by the prescribed operation of the operation part 3 and the prescribed area 52 of the picture data and the picture data (the circuit figure 53) are linked in the device 1.
TAKAHASHI TETSUYA
NUNOKI AKIRA
MORITA KOJI
KADA KONOSUKE
