Open cable set-top box diagnosing system and method thereof

An open cable set-top box diagnosing method comprising:

• a step in which when a command for checking the operation state of the set-top box is inputted from the head end, the point of deployment (POD) requests system state information from the set-top box, and when the system state information is received from the set-top box, the POD transmits it to the head end;
• a step in which the head end checks whether there is an error in the set-top box on the basis of the received system state information and requests detailed information on a defective sub-system from the POD in case that there is an error in the set-top box;
• and
• a step in which the POD requests detailed information of the defective sub-system from the set-top box, and when detailed information on the defective sub-system is received from the set-top box, the POD transmits the detailed information to the head end.

An open cable set-top box diagnosing method comprising the steps of:

• requesting state information on the open cable set-top box according to the command for checking the operation state of the open cable set-top box received from the head end;
• diagnosing whether there is an error in the open cable set-top box on the basis of the state information;
• and
• requesting detailed information on circuit units of a defective open cable set-top box in case that there is an error in the open cable set-top box.