Home » Audio » Silicon Valley » Buzzing Yamaha CA400
Buzzing Yamaha CA400 [message #7928] Tue, 13 February 2007 05:50 Go to next message
Ionakana77 is currently offline  Ionakana77
Messages: 1
Registered: May 2009
Esquire
Hi everyone

I'm getting a faint buzzing sound from my Yamaha CA400. I'm at a loss to work out why, so I'm hoping that from my description of the symptoms, someone might be able pinpoint the cause.

The buzzing is audible when the volume control is anywhere between the nine o'clock and three o'clock positions - it disappears outside this range. Apart from this, the volume of the buzzing is the same regardless of the volume control position.

It's not loud enough to be distracting, but I could live without it if there is an easy solution. I'd be most grateful for any advice offered.

Re: Buzzing Yamaha CA400 [message #7929 is a reply to message #7928] Tue, 13 February 2007 14:56 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18792
Registered: January 2001
Illuminati (33rd Degree)

I had an amp with a similar symptom once, and found that the potentiometer was broken. The substrate had cracked, probably in two places, making it partially open and intermittent. It was noisy when the knob was positioned within a range of medium positions.


Re: Buzzing Yamaha CA400 [message #7943 is a reply to message #7929] Sat, 19 May 2007 12:49 Go to previous messageGo to next message
randle is currently offline  randle
Messages: 179
Registered: May 2009
Master
How did you fix it? Was it considered to be broke or were you able to replace the potentionmeter?

Re: Buzzing Yamaha CA400 [message #7944 is a reply to message #7943] Sun, 20 May 2007 09:36 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18792
Registered: January 2001
Illuminati (33rd Degree)

Yes, replacing the potentiometer fixes the problem.


Re: Buzzing Yamaha CA400 [message #7950 is a reply to message #7944] Fri, 01 June 2007 13:51 Go to previous message
randle is currently offline  randle
Messages: 179
Registered: May 2009
Master
and where can you find one of those from?

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