In order to solve problems of degradation of image quality and decrease of yield because of cross-talk in other signal lines where wire trouble such as a discontinuity or the like of a matrix signal wire makes a photoelectric conversion signal output inappropriate, a photoelectric conversion apparatus is provided with a photoelectric conversion circuit unit 101 in which a plurality of photoelectric conversion elements are arrayed in a matrix, and a plurality of matrix signal wires M1 to M3 for transferring parallel signals outputted from the photoelectric conversion circuit unit 101 to a reading circuit unit 107, and a matrix signal wire M2 with the wire trouble to output an abnormal signal is intentionally cut, out of the matrix signal wires arranged in a non photoelectric conversion region of the photoelectric conversion circuit unit.