| KR55 / b MIDI modification | |
Adds MIDI triggering of all sounds.
The MIDI channel can be easily changed using the program switch.
Note assignment is fixed.
Sockets provided:
MIDI In, MIDI Thru
+program switch
Some build pics follow to help those that are fitting one;
General picture. See the MIDI sockets and switch to the left.
The Blue and purple wires are those that need intercepting.
This slightly blury picture shows the blue wires intercepted
with the MIDI trigger wires. Resistors are under the heatsink.
This pic shows a suggestion of where to mount the PCB. Also
you can see more intercepted wires (purple).
Important notes:
Only the kit is guaranteed, not your workmanship or your equipment. Any repairs for any reason what-so-ever are your responsibility. The kits have been tested and shown to work. So follow the instructions correctly and it should work.
Modification usually involves drilling socket holes, soldering, cutting tracks. Only basic electronic skills and tools are required, but we have found that even so called 'electronic professionals' have made stupid and embarrassing mistakes, so ensure you are careful and re-read everything several times. Email if stuck.
If in doubt, get us to fit the kit!
We only sell the complete kits, we do not sell the instructions only.
We can in theory do some sort of mod to most analogue synths of drum machines, but there are reasons why yours may not be listed. To figure out a mod, we need the original synth here to work on, at least once, and possible a 2nd one so we can proof test the instructions.
There are some kits that we sell plenty of (SH101, TB303, TR606 kits for example). This gives us the opportunity to improve the kit each time we get to work on the synth. But there are some synths that we may only see once in 10 years. In this case the mod as little chance of being improved, as we are unlikely to see that synth ever again so the mod cannot be improved with the benifit of our improved experience and knowledge. The Roland equipment is very common and relatively cheap, that is why there are plenty of mod kits for the Roland stuff. But there are other synths that we do not get to mod for various reasons, too heavy to ship (e.g. Jupiter 4), too rare or valuable - best kept in original condition (e.g. EMS VCS3), the synth's value is likely to be less than the cost of a modification (there are plenty of crappy monosynths out there by strange makes), the synth is too rare so we are not likely to see one (though not necessarily collectable).
We can modify most analogue synths and drum machines. The following types of modifications available are outline below;
Drum Machine Tonal Mods
We can add extra sound altering controls to some analog drum machines, like tune, filter, decay, etc. that allow the voices to be altered (like on a TR808). Note, sometimes due to lack of space, the extra controls have to go on a permanently attached external box.
Separate Audio Outs
We can split the main output to provide individual audio outputs for each drum voice, or in the case of some analog poly synths, for each voice. This allows you to add individual effects or pan each voice using your mixer and outboard. For a poly synth, this means you could have a stereo spread of each poly voice.
Audio Outs
We can also provide outputs from various audio sources within a synth or drum machine. E.g., raw waveform output from a synth VCO, source signal used in a TR606 high-hat.
Audio Ins
We can provide audio inputs to your synthesizer so that you can process external audio (CDs, sample loops, vocals, etc.) through the synth filter or VCA. We can also provide some audio inputs to drum machine voice circuits, eg. audio input through a TR909 SD filter (usually lo-fi).
CV (control voltage) Inputs
We can provide additional socket inputs to control aspects of a synth, like filter cut-off, pulse width, VCA level, resonance level. Most synths only allows 2 or 3 CV inputs, but some, like the CS5, just about every parameter can have a CV. Note, to gain more CV control that we list for each synth would normally require expensive extra circuitry for each socket.
CV Ouputs
We can provide CV outputs from modulation sources, like a synth's LFO, EG, S+H etc. These can then be used to control another synth or modular synth.
Internal MIDI
We can add an internal MIDI interface to most analogue drum machines and synthesisers.
Misc.
We do other one off misc. mod's like;
LED colour change, internal back up batteries, additional misc. controls, Trigger output LEDs, Trigger output sockets from drum machines.
Mods are also roughly split into some of the following groups;
Modular Upgrade: this provides as many CV/Audio input and output sockets as possible to turn your monosynth into a patchable modular.
Basic CV/Gate upgrade: gives your synth CV and Gate sockets needed so you can control it from a MIDI-CV interface.
Concussor
Modular Synthesizer from Analogue Solutions
Tel:+44 1384 35 36 94 Fax:+44 1384 35 36 94
e&oe (c) 5 2008
