Video system with self-diagnose function

A video system with a self-diagnose function, comprising:

• video signal processing means for receiving a video signal and performing predetermined processing for the video signal;
• control information supplying means, selectively coupled to said video signal processing means, for supplying output control information for the predetermined processing;
• information input means, coupled to said control information supplying means, for receiving input control information for changing the output control information;
• mode switching means for selectively providing a normal mode signal for designating a normal operation of said video system and a test mode signal for designating a test operation of said video system;
• converting means, selectively coupled to said control information supplying means, for converting the output control information changed in accordance with the input control information into a predetermined display signal;
• determination means, coupled to said mode switching means, said control information supplying means, and said converting means, for coupling said control information supplying means to said video signal processing means in accordance with the normal mode signal, and for coupling said control information supplying means to said converting means in accordance with the test mode signal;
• synthesizing means, coupled to said converting means and said video signal processing means, for synthesizing the predetermined display signal on the video signal processed by said video signal processing means;
• and
• display means for receiving and outputting an output signal from said synthesizing means.

A reception system with a self-diagnose function comprising:

• means for receiving a video signal from a satellite broadcast;
• processing means for performing predetermined processing of said video signal;
• control information supplying means, selectively coupled to said processing means, for supplying output control information for the predetermined processing;
• information input means, coupled to said control information supplying means, for receiving input control information for changing the output control information;
• mode switching means for selectively providing a normal mode signal for designating a normal operation of said reception system and a test mode signal for designating a test operation of said reception system;
• converting means, selectively coupled to said control information supplying means, for converting the output control information changed in accordance with the input control information into a predetermined display signal;
• determination means, coupled to said mode switching means, said control information supplying means, and said converting means for coupling said control information supplying means to said processing means in accordance with the normal mode signal, and for coupling said control information supplying means in accordance with the test mode signal;
• synthesizing means, coupled to said converting means and said processing means, for synthesizing the predetermined display signal on the video signal processed by said processing means;
• and
• display means for receiving and outputting an output signal from said synthesizing means.