Patent ID: 7610538

Claim:
A test apparatus, configured such that a test module is replaceable with another kind of test module, that tests a device under test using the test module, comprising: a plurality of test modules, including the test module and the another kind of test module, that transmit/receive signals to/from the device under test to test the device under test; and a performance board for diagnosis that diagnoses the plurality of test modules, the performance board for diagnosis including: a motherboard provided common to the plurality of test modules; a circuit for diagnosis that transmits/receives a signal to/from each of the plurality of test modules to diagnose the plurality of test modules; a plurality of inter-board to module connectors arranged corresponding to the plurality of test modules, each of which connects the corresponding test module to the circuit for diagnosis; and a plurality of sub-boards each of which includes thereon at least one of the plurality of inter-board to module connectors and is replaceably fixed to the motherboard to fix the at least one of the plurality of inter-board to module connectors to the motherboard, wherein each of the plurality of sub-boards has a fixing part which replaceably fixes each of the plurality of sub-boards to the motherboard, and wherein each fixing part has substantially the same structure.