I am hoping someone can help me. This unit is about 15 years old. Has worked fine until recently. There is now a very faint hum whether it is connected to the inputs or not and whether the external amp is ‘on’ or not. I can live with the hum but more significantly, it occasionally rumbles or thumps (the first time we woke in the early hours convinced we had an intruder in the house!)
It hasn’t been used hard.
I am not an expert but can use a soldering iron and am curious. I have taken the back off to have a look at the circuit board and ancillaries to see if there was any obvious sign of overheating etc but it all looks like new.
I have no test equipment beyond a multimeter! Any suggestions for what I could try ? Failing that is there a good repairer anyone could recommend ? I am in south west London.
If it can’t be repaired is there a different more up to date amp that could be retrofitted and would do the same job ?
Many thanks
It hasn’t been used hard.
I am not an expert but can use a soldering iron and am curious. I have taken the back off to have a look at the circuit board and ancillaries to see if there was any obvious sign of overheating etc but it all looks like new.
I have no test equipment beyond a multimeter! Any suggestions for what I could try ? Failing that is there a good repairer anyone could recommend ? I am in south west London.
If it can’t be repaired is there a different more up to date amp that could be retrofitted and would do the same job ?
Many thanks
Hello. I have exactly the same issue with the same model! Did you find the solution? Can you please share the knowledge if so?
Thank you)
15 years old.... hum with or without connections. Potentially power supply caps at or nearing "end-of-life" Electrolytic caps dry out with time;, even sitting on a shelf.