Realistic Moog Concertmate MG-1 oscillator problem

Pulling out your hair? Don't know what to do or where to go? Ask in here.
Forum rules
READ: VSE Board-Wide Rules and Guidelines

If your Help request has been solved, please edit your first post in order to select the Image Topic Icon to let others know your topic has been solved.
Post Reply
Posts: 1
Joined: Sun Aug 17, 2008 6:42 am

Realistic Moog Concertmate MG-1 oscillator problem

Post by FANGED_DEUCE » Mon Aug 18, 2008 2:45 pm

i just received this beast several days ago and it was working obscenely well. then, within 8 hours, the second oscillator died. i opened it up and saw the grotesque foam that plagues these things thankfully still attached to the body of the keyboard and not the board. i then proceeded to put on my gloves and clean the thing out thoroughly. i inspected the soldering points on the back of the board and saw absolutely nothing amiss. the slider that controls the volume of the second oscillator seems to be the culprit. what can i do to make sure that this is the problem? i don't really want to pay somebody to diagnose and fix it for the "convenient" and "competitive" price of $200+. thanks in advance.

User avatar
Active Member
Active Member
Posts: 660
Joined: Wed Feb 22, 2006 4:31 am
Gear: HS-60, MG-1, CS-5, ESQ-1, CZ-101, DR-110, MR-10, MDP-40, EA-1, ER-1, ES-1, Trixer, SDS-9, Califorian 365, toys, guitars, ukes, etc.
Location: Huntsville, AL

Re: Realistic Moog Concertmate MG-1 oscillator problem

Post by Tyler2000 » Sat Aug 30, 2008 8:23 pm

*i am not a professional and take no responsibility if this hurts your synth*

but I don't think it will. Could you just take a bit of wire and do a short between the terminals for the slider? Seem that that would bypass it and allow you to hear it at full volume.

Does the ringmod and sync still change when you detune the 2nd osc?

Good luck, I love this synth.
so what do I put down here now?

User avatar
Supporting Member!
Supporting Member!
Posts: 1448
Joined: Sat Jan 21, 2006 3:42 pm
Real name: Steph. J
Gear: Multimeter
Frequency Counter
Signal Generator
Logic Probe
and more stuff
Band: Cybernetik
Location: Sherbrooke, Quebec, Canada

Re: Realistic Moog Concertmate MG-1 oscillator problem

Post by Maschinengeist » Sun Aug 31, 2008 5:08 am

i don't really want to pay somebody to diagnose and fix it for the "convenient" and "competitive" price of $200+.
I'm a tech and I help people whenever I can (browse my stats). When I read statements like yours, it doesn't motivate me to help out. People work for a livin', you know. Listen to anyone change half of the parts and see what happens. A lot of people do. Sometimes it works, sometimes it just makes things worse.

It's blunt to say but when someone buy a vintage instrument, he must be prepare to pay someone more qualified (from time to time). Some people can be fixed easily, some requires more work.

Good luck at cleaning out the foam. It's real fun and time-consuming.

And no, I am not only in it for the money but for the love of musical electronic instruments.
Music electronics repair & More
Help? See TechZone
Parts? email!
Service Manuals?+/-2000 documents!
Sorry, they aren't free
Now on FACEBOOK: "Muzik Elektronix"

Expert Member
Expert Member
Posts: 1304
Joined: Wed Jun 21, 2006 10:09 pm
Location: Europe

Re: Realistic Moog Concertmate MG-1 oscillator problem

Post by sam » Sun Aug 31, 2008 12:32 pm

You can at least get those sliders of e-bay.

If it's out of your knowledge base it's worth checking out a local tech.

It's well worth it and might not cost you a fortune.
Roland Vp330 mk1.SH101.juno 6.OSCar.ARP odyssey..Tonus 2600..omni.
ms20/50. OBX.
Prophet 5

Post Reply