Question about Digidesign 003 Factory

2 Answers

I have a scratchy pot on my volume on my 003 factory...Can i clean it?? Or replace it myself with out the high cost shipping??

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

For those who still suffer from crackling potmeter in DigiDesign 003: Well, this potmeter is not the top of the line.
I made weeks of researches to repair my friend's DigiDesign003 crackling headphone+mainvolume potentiometers. We decided to find replacement-parts which is much cheaper than the $10 assumed here above. Here's the significant part of what I found (posted at avid forum as well):

I attached an Excel-datasheet-screenhot which contains all the possible candidates, however I couldn't find some of the potentiometers at distributors, USA people may have better luck to find the most fitting one. Fortunately BI Technologies in UK produces a rotary audio-potmeter line which fits the 14mm dimensions of the Digi003 built-in potentiometers. (Our local distributors could only acquire a similar to similar P140KH1-20AR20K from BI Technologies, it needed a little bit of tweaking, rasping, but it now operates fine and is durable - 30000 turns - on paper .)

The extracted info of the Excel, the most fitting models (datasheets help to find correct/closest part-number):
-BI Technologies(UK) P140KH-F25AR20K (confirmed to exist by BI contact but distributors haven't ordered this yet, needs 9 weeks of shipping if you manage to order it. Above I mention, BI P140KH1-20AR20K is proven to work and BI potmeters bear 30000 turns, 2 times more than other brands.)
-Bourns(USA) PTV142B40Y025AA203 (unfortunately DigiKey and Bourns told it's obsolete)
-Noble(USA) XV014112GPV-25F-15A20K (seems very similar to the original DigiDesign003 potmeter. I have no info, how to order. Maybe directly from manufacturer.)
-Alpha(USA) 3RP/1416G-CD1-D20K (probably orderable from Alpha directly by using their web-interface to assemble part-number.)
-Alpha(Taiwan) RV142F-40-25A-A20K ? (datasheet/xls may help with correct partnumber)
-Alps(Japan) RK14K12C0A0T (its value is 50kOhm, not the best replacement-candidate)

Distributors I found (in approximate order from biggest to smallest):
USA: Arrow, DigiKey, Mouser (shipping outside USA costs around $60)
Europe: Farnell/Newark, RS-online, Distrelec, Conrad, Allied, TME

Some last observations, advices to select correct part:
-must be 2 * 20kOhm, logarithmic scale for audio application (A taper)
-these 14mm dual 'audio' potmeters seem to have the same 'standard' pinout, but 'tone' (bass/treble) potmeters has a bit difference: common point is separated to 1st and 2nd leg. We simply cut the end of 1st leg to be short (not to reach PCB) and solder it to 2nd leg (see 1st photo), and it seemed to be perfect 'audio' potmeter substitute in our case. Check out datasheets or my excel for pinout-details.
-the shaft/rod of the potmeter should be 'flat' type with cca. 6mm diameter, 4.5mm flatted-part thickness and 12mm flatted-part length.
-the complete potentiometer should be around 25mm tall. datasheets state it as 'L' parameter, but be careful, it differs for potmeters with bearings, where it refers to the shaft-length. Drawings in atasheets make it clear hopefully. It seems that our potentiometer which unfortunately had bearing, still fits into the DigiDesign003 fine...
-most of the times the orientation of these panel-potmeters are referred to as 'vertical' which means they stand vertically and their legs are bent to fall into the PCB, as well as their securing point is at the bottom. The drawings in datasheets help to identify if its that way.

I hope this ordering & technical info was a little bit of help for some people. Sorry in advance if any of the presented info here were incorrect/misleading, I tried my best, and don't take any responsibility for the correctness, so use the info at your own risk...

Good luck, if you decide to acquire and replace the potmeter for yourself... For non-technical people I advise to ask someone skilled in soldering because it's hard to desolder the original potentiometers from the Digi003's 2-sided panel... Soldering flux comes handy to lower the melting temperature of tin. Flux can be cleaned with acetone after soldering the new pots in.

It would be useful if you might post any results here if you used any of the pots above... I have a scratchy pot - b5f78999-5206-4219-9814-477b70eebbeb.jpg 50160b02-6f81-445f-9440-9af226813a2d.jpg d717e64c-ad09-4bcf-ba04-6d1e61359d94.jpg

Posted on Oct 03, 2014

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,851 Answers

In case the dust is the problem at your scratchy pot you can use cleaner spray (without oil) in order to clean the pot. In case the corrosion is deeper you have to replace the pot. I don't know more details for this particular pot in order to suggest you a dealer, but I assume that if you can use soldering tools you can remove it and find something, at least, similar.

In case of a problem or clarification or further details needed, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, rate my solution with the "thumbs" or (even better) add a testimonial.

Thanks and regards
Please kindly rate this solution
direct fixya link:

Posted on Mar 11, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


Try this first with the piano off, run the control from stop to stop rapidly several times. The object is to clean off any dust deposits and shine the contacts inside the pot. If the pot is not damaged beyond repair, then this should fix it.

Dec 05, 2016 | Casio Cdp-100 88 Note Digital Piano

1 Answer

Samic guitar amp LA30R. How do I repair the volume control?

First you need to get access to the hardware. Disconnect the speaker wires from the speaker, then unscrew the 4 screws located on the top of the cabinet (one in each corner near the corner guards). Once that is done you should be able to slide the electronics out of the cabinet. How you fix the volume knob really depends on what is wrong with it. If it is scratchy and sporadically responsive, it might just need a good cleaning, which is easy. Otherwise it might need to be replaced, which is less easy, but still easy enough if you are handy.

To clean the knob, you will need to get some electrical contact cleaner (I use Deoxit, but anything designated for this task is good...I wouldn't use WD-40). I remove the potentiometer from the face plate, but you can likely clean it without removing it if you can get at it. Set the nozzle against the tiny hole by the back of the pot and give it a quick spray, then rotate the knob back and forth a bunch of times (like 40). Voila. While you are there, clean all of the pots, as a preventative if nothing else.

If you need to replace the pot, things can get a bit trickier. If you are handy with a soldering iron, desolder the contacts on the back of the pot and replace it with the same type of pot (you can cut it out too, but that gets messy). Take note of any markings on the pot. It will likely say something like A500K...the first letter defines the type of pot (audio vs linear), and the number defines the resistance (500K, in this case). Getting the wrong pot in there can drastically change what you get out of your amp, and probably not in a good way. Solder your new pot in place, then put it all back together.

Make sure you test the amp once you have cleaned/replaced the pot before you screw everything back into place. Hook the speaker back up, power it up, and see what happens. If everything is good, lock it down. If it still isn't working, you may have a bigger issue than the pot, and you should likely take it in to a professional. Good luck!

Aug 29, 2015 | AMP Music

1 Answer

Master volume is scratchy on MG100FX

All i can suggest is to use electrical contact cleaner on it from the inside. But you,ve already done that. And i would imagine that the master volumes will be the same to, Harry

Dec 28, 2013 | Marshall Music

1 Answer

How to clean volume pot on a rmx5050

Just spray a few shots but you have to take the top cover apart, then take out 3 philips screws in the pots module, take off caps and then you should be able to give'em a good cleaning spray shots.

Feb 11, 2013 | QSC RMX 5050 5,000 Watt Power Amp

1 Answer

Slide pots for PV14 mixer

The pot needs to be cleaned. Get a spraty can of DeOxit 5. Spray it into the track and move the slider up and down a number of times. If that doesn't fix it, replace the slide pot.

Jul 30, 2012 | Peavey Electronics Peavey 00512140 PV 14...

1 Answer

Fultone FB-2 does not boost very well all of a sudden. Pot sounds scratchy. I cleaned the pot, still sounds the same. and still little or no boost.

I hope you did NOT use contact cleaner in the pot... Use CRC226 available at Home Depot in the electrical dept. Contact cleaners like Deoxit or Blue Shower destroy the lube in the pots. Check the battery or adapter for the unit.

Sep 11, 2011 | Fulltone Music

2 Answers

The volume control on my Gorilla GB-30 amplifier crackles when turned, but the actual volume never changes. Will a new control switch fix the problem? Are manuals available?

There likely is another problem, possibly a cracked circuit board or bad solder at the control. If the control worked at all, there would be some change in volume. Take unit in for repair.

Feb 08, 2011 | Music

1 Answer

Replacing the volume pot on a Gibson ES335.The best method for getting the old pot out of the guitar to enable it to be unsoldered and the new item to be soldered in it's place and put back into the...

If the volume pot is scratchy noisy, FIRST try squirting a bit of CRC226 into the pot. CRC226 is available at Home Depot in the electrical department. There are other CRC products there so be sure to get the 226 type. About $2.75 a can.

The product is also good to use in slide pots on mixers. Use sparingly, it doesn't take much. For rotary pots you often can use the spout to spray into the slot where the terminals go into the pot.

Sep 20, 2010 | Gibson Es345 Reissue Vintage

1 Answer

Thomas jester 132 organ troubleshooting E-flat below mid c not working correctly on either keyboard or foot pedal all other keys ok volume pedal is scratchy but works ok

Here is where you can get the service manual: Since the problem is with the foot pedal note and the keyboard note I would suspect that there is a problem with the tone generation circuit for that note. You might try cleaning the key contacts on both for that note first to see if that works. The volume pedal probably just needs the volume pot cleaned with contact cleaner spray. I hope this helps. Let me know if it does.

Nov 26, 2009 | Music

1 Answer

Problem with volume dials in an electric guitar.

If you can't clean the pots or if you just want to try replacing them, try using
500k pots again, in case one or both of the pots is worn or dirty or
defective. If that doesn't work, and cleaning or replacing the
switches doesn't work, then the problem is probably elsewhere.
You could put a 500k resistor (with a sufficiently-high power rating of at least half the power rating (Watts) of the pot) in parallel with the pot, or, to cover all bases, put a 500k resistor from each of the two outer lugs of the pot to the middle lug. That should change it into the equivalent of a 250k pot. You could even just temporarily clip the resistors on, with alligator-clip leads, if you're very careful, just to test it.

Good luck,

The dude.

Aug 07, 2008 | Dean Dimeblade Tribute Electric Guitar

Not finding what you are looking for?
Digidesign 003 Factory Logo

442 people viewed this question

Ask a Question

Usually answered in minutes!

Top Digidesign Music Experts

Michial Gueffroy

Level 3 Expert

1138 Answers

Vito Vacirca Jr.

Level 2 Expert

140 Answers


Level 3 Expert

102366 Answers

Are you a Digidesign Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides