RES: [korgpolyex] Re: Failed Moog Slayer MOD
2005-08-30 by THIAGO Montenegro
Well, Is been a while since I wrote about a problem on my Korg Poly 800 MKII. Today I opened it up and I guess you were right, the black cable goes in the "thing" in the up/left corner. Here are some pics so you can tell me what you think. I guess I have lost the patches, thats why it didn't play, as Joseph said. Thanks in advance Thiago M. _____ De: Joseph Ralston [mailto:voxdestrukt@...] Enviada em: sexta-feira, 1 de abril de 2005 19:56 Para: korgpolyex@yahoogroups.com Assunto: RE: [korgpolyex] Re: Failed Moog Slayer MOD I recently did this mod (about 2-3 weeks ago) on my Poly800 (original MK1). I found and used two different internet articles on this mod (each were a little bit different, one was atom smasher the other some german site I had to translate with altavista and he used all blue wires so I couldn't translate what cable went to what pot, etc. real dumb!). I tried the following different ohmages on my pots: (10k, 50k and 100k). I think I am using the 10k for cutoff and 100k for resonance at the moment. It works ok, but I am not totally satisfied with the range on this yet, so I will probably screw with it some more, but for now these ohmages worked better than using 50k ohm pots for both cutoff and resonance IMO (more range and effect). I recommend testing different ohmage pots to find the way you like it best. Also, be sure that once you have made this mod that you set your resonance and cutoff levels (using the parameter buttons not the knobs themselves to say 50 for cutoff (41) and not more than 12 for resonance (42) or you will hear some awful loud squelching. Out of both mod articles the moog slayer says to cut in to the power line, remove the diode on the grounding plate (cardboard piece) and solder into the power line etc. etc. (kindof a pain). Well, when I used this mod, I lose my patches every stinkin time I turn it on (remember I have a brand new internal battery and holder (which works fine BTW). I think by hooking into the power line it is screwing things up, so I just used the other mod which is to just wire the new knobs right into the pots (holes, since the original pot must be removed). I don't have the lost patches as much anymore with it like this and I can actually hear the changes as I tweak the knobs. Definately use audio taper pots they are different. www.digikey.com has them and lots of other cool stuff like the battery holder mod etc. I don't know, this mod was fun, but not really as effective as I was hoping. I spent like $30 on different knobs, battery holder etc., so not too bad, but perhaps not worth the time and money for many. I do wish there was more info on it and better photo tutorials. The black wire probably goes to the ground plate right next to the power supply area (a little cardboard tab on the edge of the board...though I am not sure without pictures. As for you not hearing any sound anymore...Well, that is most likely because you have lost all your patches and you need to reload them from tape or sysex if you have the MKII. Do this everytime you make changes to the mod, or make sure you have a good internal battery (I recommend the battery mod too since you are in there...it's really easy) AND get some C batteries for the keyboard itself too if you can. I don't know about you all, but I lose my patches all the time even with a brand new internal battery in it. Just reaload from tape from your computers sound card it's easy enuf. Hope some of this helps. lanrosta - www.voltagekontrol.com x x <alienxxx2002@...> wrote: In the atom smasher example you see 50 k pots.....I used 50 k guillaume richard <kaneelisdead@...> wrote: Im interesting in getting an answer about the question Thiago pointed... I own a ex800 and i plan to soon mod it but still i dunno if it's 10k pots or 100k pots coz i found different explanations... Could anyone help? kaneel www.mynameiskaneel.com >From: "Olaf" <olgu@...> >Reply-To: korgpolyex@yahoogroups.com >To: korgpolyex@yahoogroups.com >Subject: [korgpolyex] Re: Failed Moog Slayer MOD >Date: Fri, 01 Apr 2005 20:55:41 -0000 > > >Hi Thiago, > >welcome to the group! >Please check the "Photos" section in this group and look for >pic "DSCF0314": There's a connector at the left edge of the main PCB >with a red, a brown and a black wire. Do you mean this? >It's next to audio connector plugs, so it could be related to your >problem. You should download the picture and magnify on your display, >then you can see where it is soldered on. > >Hope that helps! > >BR, > >Olaf > >--- In korgpolyex@yahoogroups.com, "THIAGO Montenegro" <thiago@l...> >wrote: > > Hi to all... This is my first post!! > > > > I've tried to do the moog slayer mod some time ago and didn't had >time > > to finished. It was a little confusing to me to know where to cut >the > > point where knobs go...anyway... Indeed, I didn't even >started...Just > > opened my 800mkII. But I have the knobs (duh) and I'm just waiting >some > > free time to do it... > > > > The sad thing is that I unplugged one black cable and don't know >where > > it goes. My POLY goes ON fine but no sound goes to the output. It's >been > > a while and I'm not sure where this cable is placed, but it source >is > > near other two (black cables) and near where the mod IC's are. > > > > I'm planning to do it all in one time but I would really appreciate >any > > help from yours. I know this is not possible only with this post, >but > > I'll be posting some photos soon. > > > > Just want to share my sadness with some other users...BTW, this >happened > > like 6 months ago and I'm really missing it. > > > > Just to finish, some say 10k pots some say 100k, which is better? > > > > Sorry for the bad English > > > > Thiago M > > > _____ Yahoo! Messenger Show us what our next emoticon should look like. 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