Abstract: A small tuner for a receiver, for example, a TV receiver is provided which requires a reduced area for mounting on a main signal board. A tuner board is disposed perpendicularly to a connector, for example, an F connector so as to allow an output signal of the tuner board to be outputted downwardly and thereby reduce the area required to mount the tuner. With the tuner made smaller and more immune to noise, a portion facing the tuner board of the shield case for the tuner is removed and a ground pattern is formed over the tuner board surface facing the removed portion of the tuner case. The core line of the F connector is bent to be connected to an end portion of the tuner board so as to facilitate laying out the tuner board.