The ADRET 7200 V H F /U H F signal generator is a modular
instrument comprising boards which plug into a mother board
and plug-in modules in light alloy enclosures. This form of
packaging is particulary used for HF circuits to maintain
spectral purity specifications in spite of the high
Modular internal structure offers a number of advantages
some of which are relevant to maintenance :
- the sub-assembly swapping facility avoiding instrument
- the circuit accessibility for the servicing,
- the faster check of running signals by the control points
Maintenance is further simplified by the inclusion of a
controlled by the inbuilt microprocessor.
This system, enabled while troubled shooting, gives for each
point tested whether the signal is correct or not.
The self-test results are not sufficient to produce a
definite diagnosis of a subsystem malfunction, but are
needed to enable that part of the instrument which has
failed to be identified and located.