To solve a problem that calibration takes much time, effort and facilities, and the precision is low.

Adjustment (calibration) of video output characteristics of a television set 10 is implemented as a microcomputer 12 establishes a correction value for a component signal which is input through input ports 12a to 12c. At the time, the microcomputer 12 selects a DVD (Digital Video Disk) drive 11 built in the television set 10 as an output source of a video image signal of the video image for inspection, and displays the video image for inspection in a display 13 based on the component signal of the video image for inspection output from the DVD drive 11, and establishes the correction value based on the calorimetry data of the video image for inspection.