Patent ID: 7559138

Claim:
A method for replacing a defective printed circuit board (PCB) unit in a PCB panel with a nondefective PCB unit, the method comprising the steps of: providing a PCB panel with a plurality of PCB units connected unitarily to each other and arranged in the PCB panel; removing a defective PCB unit from the unitary PCB panel; providing a panel seating table and a location correcting table, the panel seating table having an opening formed through the panel seating table, the location correcting table being moveably placeable in the opening of the panel seating table; placing the PCB panel on the panel seating table and at a location where the open space defined by said removing the defective PCB unit is aligned with the opening of the panel seating table; placing a nondefective PCB unit on the location correcting table such that the nondefective PCB unit is disposed in the open space defined by said removing the defective PCB unit; reading a relative location of the nondefective PCB unit with respect to the PCB panel using a vision camera; and correcting a location of the nondefective PCB unit to an aligned location when the reading result indicates that the nondefective PCB unit is located out of the aligned location.