PURPOSE: To set the board and a top panel to a visual position on purpose respectively by connecting the board and the top panel with a connection member and fixing the top panel with a tilt with respect to a horizontal plane.

CONSTITUTION: A television receiver 10 placed on the electronic device board is set while its screen face is directed upward on the top panel plate 1 obliquely. The television receiver 10 is locked by a flange 4 provided to the ridge at the lower part of the top panel obliquely. Since the television screen is set upward obliquely, the user views the screen pattern naturally while riding on a bicycle type exercise machine or the like. Or a function of adjusting a tilt angle may be provided and the electronic device board applicable much more to multi-purpose is realized by making the height variable as required.