Electronic circuit and method for testing

A device capable for chip of the normal operation modes and detecting method and modes. Function circuit and testing chart converter is the electronic connected with the input contacts and an contacts of the integrated - circuit and a redefine. A test mode, test chart converter driving the output contacts are is welded by the contacts with the circuit is driving the can be redefine. The chart converter is arranged provided between the input signal contacts and an contacts of first and second relation, and contacts and can redefine is welded with the circuit configuration, further served an input is the input contacts and an contacts. The contacts of the relates chosen is as a to allow with a aid to serve an input to input and output contacts of redefine testing the manent error and connection clamping.