Hi Alan, Thank you very much for the info. I will check it tomorrow and will let you know. The internal photo from my Mono/Poly is this: http://tinypic.com/r/141p7di/5 and there is not this brown pcb as you say. That's why I am asking you. I assume it is located somewhere between KLM-398 and the upper case of the instrument... Thanks --- In korg_mono-poly@yahoogroups.com, Alan Dicker <alanmdicker@...> wrote: > > Yes you can use TL072CP don't worry about the CP the number is right. > Not sure what you mean by where is KLM-398. Its right here in your picture. The small brown board wit the 4 VRs on it. You want to be looking at the board behind that the larger KLM-354 which is where IC10 that Florian mentioned is located. You will need to remove the knob tops and nuts from the front panel and unscrew KLM-398 to see the other side of it where all the components are located. You should then be able to locate and remove IC-10. I very much doubt it is already in a socket unless is has been repairs before. Usually these very common op-amps aren't socketed as standard but things like the SSM 2033 VOC chips usually are. I find a good thick solder wick to be my preferred method of de-soldering components. If you are unsure on your solder skills then either get a professional to do it or find some old electronic junk boards and practise removing and re-soldering components from those until you have the skill to do it well. > > Alan > > > > ________________________________ > From: dir_marillion <dir_marillion@...> > To: korg_mono-poly@yahoogroups.com > Sent: Thursday, 8 March 2012, 22:08 > Subject: [korg_mono-poly] Re: Monopoly VCO-4 prtamento/detuning issue > > >  > Sorry to correct my previous post. > I mean where is the board KLM-398 to my board ? > According the picture I sent in my first post, it is not where it should be. > > --- In korg_mono-poly@yahoogroups.com, "dir_marillion" <dir_marillion@> wrote: > > > > Hi, > > I did not understand if Alan meant that I can use the TL072CP or not or I have to buy another chips which are only TL072 and not CP. > > > > I will open the Mono/Poly tomorrow and will see what I can do. Then I will let you know. If it is in a very complicated place I will not do it. If I am lucky enough and the chip is already plugged to a stand, I will replace it immediately :-) > > > > Really, where is the pcb KLM-354 to my revision board ? (check the picture I linked on my first post). > > > > Alan and Florian, I really appreciate your effort to help me. > > > > --- In korg_mono-poly@yahoogroups.com, Florian Anwander <fanwander@> wrote: > > > > > > Hi > > > > > > Florian Anwander wrote: > > > > [everything Alan has written already...] > > > Sorry, I had not seen, that Alan wrote everything already. I dod not > > > want to double it. > > > > > > Florian > > > > > >
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Re: Monopoly VCO-4 prtamento/detuning issue
2012-03-08 by dir_marillion
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