Patent ID: 8008937

Claim:
A diagnosis board electrically connected with a test apparatus for testing a device-under-test and used in diagnosing said test apparatus, wherein said test apparatus comprises a test head containing test modules for sending/receiving signals to/from said device-under-test, and said diagnosis board comprises: a plurality of sub-boards arranged substantially on the same plane, substantially forming a plane as a unit and as a whole, and connected with each part of a plurality of terminals of said test modules and used for diagnosing the connected terminals, each of said plurality of sub-boards being a fan-shaped plate with an outer edge and an inner edge; and a fixing section for attaching and fixing said plurality of sub-boards in a body to said test head, the fixing section including an outer ring portion and an inner ring portion that are concentrically disposed and fixed together, the outer edge of each of said plurality of sub-boards being positioned on the outer ring portion and the inner edge of each of said plurality of sub-boards being positioned on the inner ring portion.