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Vintage Synth Repair

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Re: [vintagesynthrepair] Mini-Moog Keyboard Question

2010-02-20 by Neil Boughey

I'm no great expert on electronics, but i understand minimoogs, particularly early to mid manufacturing period, suffer from oxidation and corrosion to the rocker switches. This, i would guess (and this is a guess) could be the cause of your problems if the rocker switches on the mixer section aren't contacting properly - you could try an appropriate contact cleaning spray on these?


Neil Boughey

07590 114633





On 20 Feb 2010, at 21:48, Samuel Adams wrote:


IF power supply died, why does everything except the keyboard function properly?
-----Original Message-----
From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Brian
Sent: Saturday, February 20, 2010 12:28 PM
To: vintagesynthrepair@yahoogroups.com
Subject: RE: [vintagesynthrepair] Mini-Moog Keyboard Question


It sounds as though the power supply has died!

Regards

Brian G3OYU

From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Samuel Adams
Sent: 20 February 2010 4:46 PM
To: vintagesynthrepair@yahoogroups.com
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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