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Rotel RA-311 Volume Control Issues - Broken Spring?
JamezDee:
Hi Vintage HiFi-ers,
I have another question about my old Rotel RA-311 that perhaps someone could help with.
It recently developed an issue whereby it sounds like something was scraping on the inside of the amp, when the volume knob was turned.
Upon opening, I could see a 'wire' poking out from the volume control pot, which I suspect to be a spring.
I imagine the easiest fix would be to replace this part? However I'm not sure where to get started in finding a replacement. Perhaps someone could guide me as to what I'm looking for?
I've also added a video to youtube to hear the problem - http://youtu.be/YoTok_feBzA
Any advice would be much appreciated.
MATT0404:
Can you share the link to your video? I don't see it in your post.
Looking at the picture, I don't see anything particularly out of sorts. I also don't see the wire/spring you're referring to. There appear to be some posts sticking up from the PCB with wires coiled around them. The coiling of the wire around the post is just the mechanical connection of the wire to the post, it's not a spring of any sort.
One thing you may check is whether the backside of your volume knob is making contact with the faceplate. It may have been bumped and pushed tight against the faceplate and, when you twist the knob, it can make a scraping sound. My Anthem preamp does this from time to time. I just loosen the set screw on the knob, pull it out on the shaft a bit, then snug the set screw back down.
Sir Thrift-a-Lot:
I wish I could see the video. At face value I am wondering if this isn't just a DeOxit issue.
JamezDee:
Apologies guys, here is the video: http://www.youtube.com/watch?v=YoTok_feBzA
JamezDee:
youtube.com/watch?v=YoTok_feBzA
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