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Vintage Synth Repair

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Re: [vintagesynthrepair] Mini-Moog Keyboard Question

2010-02-20 by Miguel Mendoza

I second this. Did you try the CV inputs? If the CV changes the pitch it has to be something about the keyboard connector.

Sent: Saturday, February 20, 2010 11:13 PM
Subject: Re: [vintagesynthrepair] Mini-Moog Keyboard Question

;

Hi Sam,
I would recommend a look at the 6 pin keyboard interface connector that lurks under the modulation\pitch bend section.
The silver plating on these Cinch-Jones connectors corrodes easily.
The connector is quite stiff, use a small screwdriver to prise it apart.
A good scrub with wadding silver polish of both sides of the connector and a final clean with isopropanol should cure it.
Obvious but also check for a broken wire at that connector.
Regards
John
----- Original Message -----
Sent: Saturday, February 20, 2010 4:45 PM
Subject: [vintagesynthrepair] Mini-Moog Keyboard Question

Hi,
I'm a new member to this group and am in need of assistance.
I have a 1973 Mini-Moog that I put in storage about 10 years ago in my attic in the original case. At that time, it was working fine. [Attic is insulated and doesn't change temperatures too extremes - maybe 50 degrees in winter and 90-95 in summer]
I recently took it out, turned it on and noted that the keyboard doesn't work...Keyboard will trigger the oscillators, envelopes and the rest fine, only won't change notes...Single note sounds throughout the keyboard compass.
Pitch bend works fine but no note change with the keyboard, only single note will sound. This seems to be the only problem.
I did leave it on for a few days and took the circuit boards out, applied DeoxIT on the contacts and reinstalled them to see if there was some type of corrosion had developed but to no avail.
I'm not all that technically experienced and don't have a service manual so I have no idea where to start, asides form cleaning the board contacts.
I live in upstate NY, near Saratoga Springs and can't find a service tech nearby to take it to.
Any suggestions?
Thanks

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