Image reproduction system, the display image switching method, a monitor device and a tuner box apparatus

An image reproduction system is a product which is composed of two devices between the monitor apparatus and a tuner box device, a monitor device, accepts an input from the outside of the data of the image, the image receiving for generating a video signal of the image comprising a part, and a selection unit and a second signal and the first video signal is a video signal of an image monitor device accepts the input, to select the video signal designated by the control signal, the tuner box apparatus includes an instruction receiving section for receiving an instruction operation by a user, and an image output interface unit for outputting a first video signal to a monitor device, the instruction receiving unit, an instruction operation for instructing display of an image monitor device accepts the input When receiving the, by and a selection instruction unit for outputting the control signal instructing the selection of the second video signal to the selection unit of the monitoring device, the monitoring device Input interface of the image data is provided, and the user operation easy image reproduction system.