ALPS RK168 pot pinout???? - diyAudio
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Old 8th May 2007, 01:25 PM   #1
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Default ALPS RK168 pot pinout????

Hi all,

I have a pair of ALPS RK168 type motorised potentiometer. Theyre dual gang and 10Kx2.
However I cannot find the pins functions.. Does anybody knows the pinout of that pots?

Thanks in advance.
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Old 8th May 2007, 02:23 PM   #2
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Default Re: ALPS RK168 pot pinout????

Quote:
Originally posted by Dxvideo
Hi all,

I have a pair of ALPS RK168 type motorised potentiometer. Theyre dual gang and 10Kx2.
However I cannot find the pins functions.. Does anybody knows the pinout of that pots?

Thanks in advance.
Hi,
Do you have a multimeter to test for yourself?
Usually the middle pin (2) is the 'wiper' and the resistance between the 'wiper' and the other pins will change when you turn the pot.
Usually pins 1 and 3 are fixed at 10KOhm.

Obviously you will have two extra pins that power the motor.

All of my Alps pots are wired the same but this one has two extra 'Dummy' pins. (not in use.)

Alps website

Datasheet

I found all of this information with Google "Alps Japan".
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Old 8th May 2007, 02:39 PM   #3
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However this pot has 8 pins. And there is no middle point.
And there is no data in datasheet..
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Old 8th May 2007, 03:31 PM   #4
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Quote:
Originally posted by Dxvideo
However this pot has 8 pins. And there is no middle point.
And there is no data in datasheet..
Please look again!!

The picture (and datasheet) clearly shows the pin numbers.
Two of those pins are not connected (labelled 'Dummy').

THE TWO OUTSIDE PINS ARE NOT USED and the others are numbered on the picture.

The +ve & -ve are also clearly shown for the motor control

Usually, Pins '2' are the wipers.
Usually, pins 1 and 3 are fixed at 10KOhm.
You can check this with a resistance meter.


Regards,
Martin.
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Old 8th May 2007, 03:42 PM   #5
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This may explain better
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File Type: jpg alps rk168 - labelled.jpg (33.8 KB, 535 views)
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Old 9th May 2007, 07:27 AM   #6
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Thank you friend.
Now I understand! And I can mesaure now.
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Old 29th December 2011, 11:11 AM   #7
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Hi, I need to replace an old Soundwell 20K pot with an ALPS RK16812MG LOG 10 KDx2.
As far as I understand, in order to mentain the same value I need to add 10K 0.25W series resistors. My question is ( dooh ) which pins should I use to connect the 10K resistors ?

thanks
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Old 29th December 2011, 02:22 PM   #8
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LE: input pin - solved.


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