Analogue systems

Hi,

My System 1 from Analogue Systems is defective. 

The problem is that the signal is under distorsion
effect in a abnormal way after a while.

After a complete examination, the conclusion is that
the problem is located at the reducing transformer
supply. The very first step to transform the current.

Now the trick for me is to know what the right
transformation of the voltage is, here 220 Volts to
... ? Or what is the voltage arriving on the first
printed circuit card which dispatch the current to
every modules.

Does anyboby could help me to know what is the right
transformation in Volt?

Many thanks in advance.

Best regards

Gilles

       
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