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Technics integrated amplifier su 7300 - volume keeps fluctuating

livie2's picture

Thank you for your good forum.

My amplifier is acting up. The volume keeps going low to minimum then after somtime goes up again repeating the same cycle over and over.

What could be wrong?

Thank you again.



Technics integrated amplifier su 7300 - volume keeps fluctuating

* Dirty switches/controls, possibly the tape monitor switch
* Poor solder connections

livie2's picture

Technics integrated amplifier su 7300 - volume keeps fluctuating

thanks Johnnysan, it takes long to come on too...,,,',boot'
Could it be the capacitors?

Technics integrated amplifier su 7300 - volume keeps fluctuating

Could be capacitors; could be dirty bias pots. You need to set bias according to the service instructions.