hifi engine

Technics SU-V2A

Hi, this is my first post. I got a Technics SU-V2A amplifier with no sound from the left channel, however there is a low buzzing sound independent of the volume. What can be wrong with the unit?

Re: Technics SU-V2A

Your amplifier uses two SVISTK8040 amplifier modules; one of them may be bad. I would first check all the soldering on the pins of these modules; some of the pins may be loose. If they appear to have rings or cracks, they need to be resoldered.