PG200 broken pots

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intrancewetrust
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PG200 broken pots

Post by intrancewetrust » Wed Nov 07, 2012 1:51 pm

i have acquired a PG-200, but the sustain and VCA level pots are busted... theyre basically lose/rattling around and when you turn them, its like the whole business is turning instead of the actual shaft of the pot. i am pretty technically inept, but i figure a box of knobs is a fairly safe thing to try and fix myself...

sooo i have the back panel off, and the connector detached from the case, now i assume i have to remove these 6 or so screws in the pcb to get the board out... however... i would also think i would have to get the knobs off the pots somehow? anyone with experience in cracking one of these bad boys open able to help me out.

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Re: PG200 broken pots

Post by intrancewetrust » Thu Nov 08, 2012 3:27 am

so i have the circuit board out now... the whole shaft bit is loose...i cant see any way to tighten it... anyone know of a replacement pot that will do the job?

also since i have it all open now, is there anything worth doing, like popping some faderlube into the working pots or anything? (going to give it a clean)

i found these but im not sure they are the right ones? i mean they must be right, but still thought i had better check heheh

http://www.vintagesynthshop.com/Roland- ... abacNa.asp

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Re: PG200 broken pots

Post by Don T » Thu Nov 08, 2012 4:40 am

intrancewetrust wrote:so i have the circuit board out now... the whole shaft bit is loose...i cant see any way to tighten it... anyone know of a replacement pot that will do the job?

also since i have it all open now, is there anything worth doing, like popping some faderlube into the working pots or anything? (going to give it a clean)

i found these but im not sure they are the right ones? i mean they must be right, but still thought i had better check heheh

http://www.vintagesynthshop.com/Roland- ... abacNa.asp
Hi, I replaced pots on a PG-200 before. You are correct, there is no way to tighten the shaft bearing one it breaks loose from the body.

The pot in the link appears to be the correct replacement.

Yes, cleaning the pots is a good idea, and definitely use a bit of faderlube when done. I wouldn't remove the pots from the board that are good. You will find out why when you try to remove the broken ones. It is not an easy task, and take care to not overheat the board where the tabs on the pot body plug in, it can pull the plated "hole" out of the board, leaving you with nothing to solder the new pot tabs to.

As long as you have it open, it may be worth replacing the handful of electrolytic caps inside as well.
Don Taylor

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(Basically, this means I know just enough about a lot of things to get myself in real trouble)

intrancewetrust
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Re: PG200 broken pots

Post by intrancewetrust » Thu Nov 08, 2012 5:17 am

ah thanks for the reply :) sounds like i should get someone who is good at soldering to swap them out if they are tricky... i will probably butcher it!

so basically get a techy guy to swap the pots and caps for me, give it all a good brush down and blast with a can of air to get rid of dust, deoxit (D5?)the pots then faderlube them? is it worth doing anything to the switches (rotary and linear)

with the deoxit and faderlube, should i dribble it down the shaft (that sounds a bit wrong lol), or go thru the hole cut in the top of the casing... or both? i have googled this topic and ended up even more confused than before i started :)

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Re: PG200 broken pots

Post by rhino » Thu Nov 08, 2012 4:33 pm

You might want to call Roland and see if they still have the pots - may be cheaper.
Customer service: (323) 890-3740
the part# is: 13219242
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Re: PG200 broken pots

Post by Pro5 » Fri Nov 21, 2014 8:22 pm


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Re: PG200 broken pots

Post by synthparts » Fri Nov 21, 2014 9:41 pm

$30 for a used pot you have to de-solder from a board? Will be interesting to see if they sell any. If a PG-200 can be parted out for $800 I suspect others will be doing It...
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