To provide a control board so as not to spread a mounting space of the control board and in which a printed board 12 and a wiring 20 will not disturb each other at work operation, etc.

The wiring receiver 15 of a unit A11 is installed between the unit A11 and a unit B14 so as to project in the pullout direction 13 of the printed board 12 installed in the unit A11. The wiring receiver 15 has a wiring receiver 16, which disposes and fixes the wiring 20, and a hinge 18 installed in the wiring receiver 16 for moving the wiring receiver 16. By moving the wiring receiver 16 downward by the hinge 18, the pullout range 21 of the printed board 12 installed in the unit A11 is conducted so as not to overlap a wiring finished height 22, when the wiring 20 is disposed in the wiring receiver 16; and the operation is facilitated, when the printed board 12 installed in the unit A11 is led out for exchange, etc.