Distortion
Posted: Tue Mar 19, 2024 1:51 pm
I have quite a few used Nva amp boards I’ve collected over time for spares repair and general experience/ experimentation.
I’ve successfully restored a pair with no blue smoke when connected to the psu- when connecting music I have a distortion in one channel only- there is music but with distortion.
The amp tests well on all points via a multi meter except one of the resistors that measures 0.8 instead of 0.6ohmn.
What I’m asking is -what could be the cause of distortion- faulty resistors/ transistors tp142/147 or…….?
Cheers for any advice
Just to confirm these were faulty boards to begin with
I’ve successfully restored a pair with no blue smoke when connected to the psu- when connecting music I have a distortion in one channel only- there is music but with distortion.
The amp tests well on all points via a multi meter except one of the resistors that measures 0.8 instead of 0.6ohmn.
What I’m asking is -what could be the cause of distortion- faulty resistors/ transistors tp142/147 or…….?
Cheers for any advice
Just to confirm these were faulty boards to begin with