| 摘要 |
PROBLEM TO BE SOLVED: To obtain a display adjustment device that adjusts a video image size and its position by taking dispersion in components of a deflection output circuit and dispersion in deflection sensitivity of a deflection yoke into account. SOLUTION: A deflection detection circuit 103 and a video comparator circuit 105 detect a current of a deflection output circuit 101, and a peak comparator 109 compares a reference voltage F with a voltage E resulting from the current via a clamp circuit 106 and a peak detection circuit 107 and a size adjustment circuit 102 feeds back the comparison result to adjust a video image size. On the other hand, an effective value comparator 116 compares an effective value of a positive direction current and that of a negative direction current in a deflection current and feeds back the result to a position adjustment circuit 110 to adjust a position of the video image. |
