ABSTRACT
The various formulations of the problem of technical diagnosis are possible when coming to the creation and use of analog circuits. One approach allows deviation parameters sufficiently large set of parameters of the elements. A way of testing experiments organization with analog circuit is considered. It means that the different test modes of the target circuit are the connection passive elements with frequency depended parameters and the source frequency vary. The power sources are commonly used as a testing influence on the circuit in realization test diagnosis. Different techniques and methods of influence on the electrical circuit can be used in test diagnostics. Operational properties of electrical circuits are uniquely specified by its topology and set of value element parameters which define the technical condition of the circuit of the whole. The theory of circuit diagnosis is a symbiosis of classical circuit theory and formalization approaches inherent in the theory of technical diagnosis.
