I have a friend with a BA-F1. I replaced the black flag caps for him awhile ago, proactively. He had been using the amp for about 6 months with no issue, but it started to make pop/crackle sounds on him, so he took it out of operation. I’ve asked him some preliminary questions (one channel or both, does music still come through despite the pop/crackle, etc). I’d love to help him fix the unit and get back running again if possible.
I recall reading that pop/crackle could be a symptom of a bad/failing transistor.
Are there known transistors that age badly/fail in this unit, or does anyone have any other leads/ideas on what could be causing this? I don’t have the unit with me and probably wouldn’t go get it until I had some leads on where to look first. If I got it here, I could probe here and there with the unit running to see if I could locate the bad component, but I’m also a bit worried that running it in that state while attempting to troubleshoot/locate the culprit could cause further damage. Last thing I want to do is blow output transistors or something else.
Appreciate any thoughts/leads.
Thanks.
I recall reading that pop/crackle could be a symptom of a bad/failing transistor.
Are there known transistors that age badly/fail in this unit, or does anyone have any other leads/ideas on what could be causing this? I don’t have the unit with me and probably wouldn’t go get it until I had some leads on where to look first. If I got it here, I could probe here and there with the unit running to see if I could locate the bad component, but I’m also a bit worried that running it in that state while attempting to troubleshoot/locate the culprit could cause further damage. Last thing I want to do is blow output transistors or something else.
Appreciate any thoughts/leads.
Thanks.