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It is currently 13 Dec 2018, 14:13

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 Post subject: need some advice
PostPosted: 28 Oct 2018, 16:52 
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Joined: 12 Mar 2013, 06:07
Posts: 101
Location: Thunder Bay On.
Today on my bench is an Accuphase e407 with a scratchy volume control.
Previous attempts have been made (by someone else) to shoot some cleaner in it to clean the control with limited success. the scratchy control always came back in about 2 weeks time. The gentleman that owns this piece of equipment asked me if I could disassemble the volume control and give it a good cleaning.Please see in the pictures provided of the volume control.
It turns out to be a alps control and I cant get it apart any farther than that is pictured.
The front of the control will not come off. It appears that it disassembles from the rear.
There is a spring clip holding the rear gear on that I really don't want to touch.
Anyone have any tricks on getting this apart?
If not I am going to show him why I do not want to go any farther and suggest for me to clean it while it is this far apart and if the scratchiness comes back that a replacement may have to be sourced.

I know this isn't a DIY project but I value your inputs on all my previous posts. I hope it is ok to post here.


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 Post subject: Re: need some advice
PostPosted: 28 Oct 2018, 17:59 
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Joined: 13 Feb 2013, 11:02
Posts: 43
Location: Canada
So all you've done is remove the motor. Get on EBay or Aliexpress and buy a new one. They're about $40.00 or so. Those Alps pots don't clean well, and usually need replacing.

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Dan Santoni
DTS Audio Electronics
www.dtsaudioelectronics.com


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 Post subject: Re: need some advice
PostPosted: 28 Oct 2018, 19:02 
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Joined: 12 Mar 2013, 06:07
Posts: 101
Location: Thunder Bay On.
Thank You Blackdog
I was leaning in the direction on replacing the pot.
and you are right all i did is remove the motor.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 01:25 
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Joined: 26 Dec 2016, 03:46
Posts: 173
Location: Bayarea
I would buy a new one, cleaning is only a short term thing, it's more than just dirt, the resistor element might be worn out already. There are a lot of different ALPS motorized pot on ebay, Mouser has some also, I bought quite a few, but I am not familiar with the one in your picture.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 05:25 
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Joined: 12 Mar 2013, 06:07
Posts: 101
Location: Thunder Bay On.
I have done some searching on ebay and alliexpress last night their are no alps motorized volume control with a loudness tap an the only alps with a loudness tap have the incorrect shaft.
are there any other sources out there?


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 11:51 
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Joined: 26 Dec 2016, 03:46
Posts: 173
Location: Bayarea
Sorry, I don't know. Try look for ALPS site to see whether you can find the same unit and go from there. Choice are limited for motorized pot.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 11:55 
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Joined: 12 Mar 2013, 06:07
Posts: 101
Location: Thunder Bay On.
I agree the choice is limited I will see what I can find.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 12:04 
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Joined: 26 Dec 2016, 03:46
Posts: 173
Location: Bayarea
Try contact Accuphase: http://www.accuphase.com/

See whether they have replacement parts.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 17:41 
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Joined: 12 Mar 2013, 06:07
Posts: 101
Location: Thunder Bay On.
lol I didn't even think of the obvious. Check the manufacture.


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 Post subject: Re: need some advice
PostPosted: 29 Oct 2018, 19:28 
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Joined: 26 Dec 2016, 03:46
Posts: 173
Location: Bayarea
kitchi wrote:
lol I didn't even think of the obvious. Check the manufacture.


I went on their site, they are not receiving email until Nov/5 !!! I even went on ALPS, this is what I see:

https://www.alps.com/prod/info/E/HTML/Potentiometer/RotaryPotentiometers/RMP_RK16/RMP_RK16_list.html

They look like the ones I use, not yours. Can you put the pot together and take a picture? Particular the bottom to show the pin out?


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