lacuna vrm

Posted on Feb 5, 2014

I bought a Doepfer LMK3+ keyboard from a very pleasant chap in Dunedin, via TradeMe, a popular New Zealand auction site. The keyboard features a nice, piano-like Fatar keybed in a rugged flight case. Here`s a photo of another LMK3+, taken from a recent auction on German eBay : I didn`t pay very much for mine, because it was missing the MIDI interface. The previous owner

lacuna vrm
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liked the knobs and wheels so much that, after changing to a different keyboard, he had the interface removed and placed in a stand-alone box. So, the end of mine looks like this: Also, the flight case is devoid of labels, so I have no way of confirming that it`s actually an LMK3+ (with the uprated keybed) rather than an original model LMK3. I have emailed Doepfer, and they told me that they stopped producing the LMK3+ in 1993 and that they have no suitable parts for it. Consequently, it looks like I will need to build my own interface to the keybed. (I`m assuming that if the previous owner was prepared to part with the interface, he would`ve put it back in the keyboard and sold it as a complete working unit for a lot more money. ) After taking the keybed out of the flight case and cleaning it up, I was able to find the label with (I assume) the serial number and the date of construction ("montaggio" apparently means "assembly"): I was hoping to find a part number that I could use in my quest for technical specifications on the keybed interface, but I haven`t seen anything like that. I can see how the switching for the keys works: when a key is pressed, a piece of wire breaks a contact with one jumper and then makes contact with a second jumper. (This is hidden behind the leftmost aftertouch sensor in the photo above. ) The timing between the break and the make gives you the key velocity. What I don`t know is how the 88 key...

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