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TEAC amplifier problem


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Old 07-05-2012, 01:32
coachtrip_fan99
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I have a TEAC amplifier..... not sure of the model number but there is a problem with the volume control.

if you turn it too fast, the vol. tends to jump up in the opposite direction. its very annoying.

you have to turn it very slowly, or use the remote.

would this be fixable? i love the amp, so don't want to replace it.
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Old 07-05-2012, 01:49
Gary Brenton
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I had an Eltax amp that did exactly the same...you turn it up...it goes down and vica versa.

I tend to totally avoid these type of amplifiers with these specific 'step type' volume controls. This is obviously a fault that has been on-going with a lot of modern amplifiers - hence the reason I much prefer the older amplifiers where you have a 'normal' volume control.

There is no solution apart from replacing the control itself or getting a decent amplifier. I personally wouldn't rate 'today's' TEAC products at all to be honest as I had a TEAC CD player that packed up after 9 months.

There is far better out there than TEAC
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Old 07-05-2012, 03:00
coachtrip_fan99
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thanks for your reply.

its a good few years old now, probably early 2000s and I would be sad to see it go, I have the matching cd player and cassette deck and it all sounds fantastic
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Old 07-05-2012, 11:00
Nigel Goodwin
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OK, it's not a volume control, it's a 'rotary encoder' - essentially two switches which open and close as you rotate it, and whichever one opens and closes first tells you what direction it's turning.

A VERY, VERY common problem is as you describe, and it's because the contacts have become worn or dirty.

With a little care you can often disassemble them, clean them up, and reassemble it again (complete with a small squirt of WD40) - this almost always provides a complete cure.

Failing that the control would need replacing, and TEAC spares are available from http://www.chsinteractive.co.uk/
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Old 07-05-2012, 14:27
coachtrip_fan99
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ok thank you i might have a look at it inside then,

Im not too bad with a screwdriver and ive got wd40 in the car
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Old 07-05-2012, 16:05
coachtrip_fan99
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Nigel Goodwin, you are a star!!

I did exactly what you said. It was surprisingly easy. Bit of W.D, and the volume control, sorry, rotary encoder, is now working perfectly!

a big thank you from me!
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Old 07-05-2012, 19:06
Nigel Goodwin
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Nigel Goodwin, you are a star!!

I did exactly what you said. It was surprisingly easy. Bit of W.D, and the volume control, sorry, rotary encoder, is now working perfectly!

a big thank you from me!
I'm pleased you got it sorted.
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Old 09-05-2012, 00:55
Gary Brenton
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ok thank you i might have a look at it inside then,

Im not too bad with a screwdriver and ive got wd40 in the car
Glad you got it sorted...but I would have used a component cleaner rather than WD40 to be honest... (I am using a 1978 Sansui AU-117 amplifier on my other system and it beats any modern amplifier I have heard hands down... I love it!)

But....I will let you into a secret concerning WD40...

You say you keep a tin of WD40 in the car? and I bet you spend hours with the turtle wax?.... forget that...use the WD40 to give it a shine... it is quicker and the results are great! (dont use it on glass though)
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Old 09-05-2012, 01:13
coachtrip_fan99
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Glad you got it sorted...but I would have used a component cleaner rather than WD40 to be honest... (I am using a 1978 Sansui AU-117 amplifier on my other system and it beats any modern amplifier I have heard hands down... I love it!)

But....I will let you into a secret concerning WD40...

You say you keep a tin of WD40 in the car? and I bet you spend hours with the turtle wax?.... forget that...use the WD40 to give it a shine... it is quicker and the results are great! (dont use it on glass though)
lol, thanks but I wasn't aware of component cleaner. oh well it's done now.

oh, and me.... hours with turtle wax?! I think you're getting me confused with someone else!!!
Im more of a spray with the hose-pipe once a year kinda guy.

I just keep the wd40 in the glovebox, because sometimes my distributor cap makes a whining noise that I need to get sorted.
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Old 09-05-2012, 11:59
Nigel Goodwin
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Glad you got it sorted...but I would have used a component cleaner rather than WD40 to be honest...
I would completely disagree - I specified WD40 for two reasons:

1) It's likely he had it to hand, most people do.

2) WD40 is generally far better than 'electronic component cleaners' for such purposes, I've been using it as a professional service engineer for decades now, and haven't found any 'switch cleaner' type products that perform any where near as well. The main reason is the oil it contains, switch cleaners flush away the lubricant in the control, WD40 adds some back.
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Old 10-05-2012, 01:46
coachtrip_fan99
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I would completely disagree - I specified WD40 for two reasons:

1) It's likely he had it to hand, most people do.

2) WD40 is generally far better than 'electronic component cleaners' for such purposes, I've been using it as a professional service engineer for decades now, and haven't found any 'switch cleaner' type products that perform any where near as well. The main reason is the oil it contains, switch cleaners flush away the lubricant in the control, WD40 adds some back.
it certainly worked for me.

the dial has a much smoother feel and movement to it, too.
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