Moog Source Incremental Controller

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davebr
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Joined: Sat Jan 18, 2014 5:38 pm

Moog Source Incremental Controller

Post by davebr » Sun Aug 28, 2016 1:53 pm

I got a Moog Source in for repair and had to rebuild the Incremental Controller. I could find a few hints on the web but none that were successful. I replaced both sensors and made necessary modifications to get a very nice gray code output and the Incremental Controller works very well. Details of the Incremental Controller rebuild along with a few other modifications and repairs are on my http://modularsynthesis.com/moog/source/source.htm page.

Dave

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MC
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Re: Moog Source Incremental Controller

Post by MC » Mon Aug 29, 2016 11:38 am

Nice work. There's something to be said about restoring a discrete incremental controller vs encoder assemblies that are long out of production.

No doubt you saw my webpages as I had different solution for the volume control, and it has served me well since 1990. Those batteries are also due for replacement.
Gear list: '04 Saturn Ion, John Deere X300 tractor, ganged set of seven reel mowers for 3 acres of lawn, herd of sheep for backup lawn mowers, two tiger cats for mouse population control Oh you meant MUSIC gear Oops I hit the 255 character limi

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Tonysal123
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Joined: Fri Jan 03, 2014 5:29 pm
Location: SoCal, USA

Re: Moog Source Incremental Controller

Post by Tonysal123 » Fri Sep 02, 2016 9:17 pm

Very nice job & write up. I'll definitely keep this in mind if my Source starts misbehaving.

jessicapatel123
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Joined: Fri Sep 23, 2016 2:59 am

Re: Moog Source Incremental Controller

Post by jessicapatel123 » Fri Sep 23, 2016 3:03 am

I don't own a Source but repaired one. The main issue was the Incremental Controller would only count up. Secondary issues were segments out in the Incremental Controller display, ground loop noise, and intermittent jacks.The Source has fair access for repair. You have to remove the keyboard to access the PCBs but you cannot lift the top cover very far up. The keyboard can sit next to the Source and still plug in. This photo shows the digital PCB on the left and the analog PCB on the right. I was very careful with the three flex cables that connect the membrane keyboard and also the film work which is exposed on the encoder. Both are quite fragile.

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MC
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Joined: Tue Aug 12, 2003 2:20 pm
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Re: Moog Source Incremental Controller

Post by MC » Fri Sep 23, 2016 9:48 am

The filmwork on the encoder and membrane cables are not fragile on my unit, but I have owned it since 1985 and always had it in a climate controlled place. Since they are polymer components they could very well go fragile if stored in an uncontrolled environment.
Gear list: '04 Saturn Ion, John Deere X300 tractor, ganged set of seven reel mowers for 3 acres of lawn, herd of sheep for backup lawn mowers, two tiger cats for mouse population control Oh you meant MUSIC gear Oops I hit the 255 character limi

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