Synths | |
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Roland MC-202 Rack (Midi-fied) | |
MODS 1 - Sockets - Proper CV/Gate | |
| Synth Index
| MC-202 | |
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| Proper CV IN | Proper Gate IN | CV/Gate with Switched Sockets | |
This MC-202 came with the Analogue Solution Modular Upgrade, which provides 20 sockets on an external attached box. The sockets are as followed: |
CV OUTs: | ENV, LFO Triangle, LFO Sine |
CV INs: | CV, Gate, PWM, VCF, VCA, Acc, Portamento, Mod |
AUDIO OUTs: | Saw, Sqr/Pulse, SubOsc 1, SubOsc 2, SubOsc 3, SubOsc Mix, VCA |
AUDIO INs: | To VCF, To VCA |
This is an expensive socket kit, costs
something like £200+ - in a way, I don't feel it is
worth this money. Looking at the schematics, most of these can actually be done quite easily. NOTE: It seems like they have lowered the price for this modular upgrade to something around £120... still quite expensive though... |
MOD SOCKETS 1 |
Proper CV / GATE INPUTS |
The MC-202 does have CV/Gate In's and out's. However, it's a known problem that the CV/Gate Inputs have slight problems, since many data are actually quantised before they reach the Synth section. This is because the CV/Gate In's are routed and pass through the internal sequencer CPU then out back to the synth. |
Note: If you're not rackmounting the MC-202 (like I'm doing here), then you'd need to wire a few more wires for the bypasses. Bear in mind that: we'll be patching the proper CV/Gate AFTER the internal sequencer, so bypasses are needed if u require the internal sequencer CV/Gate to pass thru. See below... |
The actual CV Out from the internal sequencer
is located at PIN 12 of I.C.15. You can cut the PCB track, and use a switching circuit... |
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IC15 is located on the right of the rectangular cut in the middle of the PCB (face from top/component side), bottom left of the ACCENT Pot, right top corner of the LCD Display area. |
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So, facing from the PCB Track side.... |
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2. Proper GATE IN |
Internal GATE OUT from the sequencer to the synth is located at IC 8, the big flat chip. |
Facing from TOP/Component Side, it's the 2nd pin on the right... |
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So, facing from the PCB Track side.... |
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Proper CV / GATE INPUTS using Switch Sockets |
Switching Sockets can be used to for the CV/Gate mod - so that when external CV/gate plugs are plugged into the sockets, they break the internal connections and allow the external signal pass thru to the IN points. |
CV Mod with Switch Socket: |
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Gate Mod with Switch Socket: |
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Or, you can wire a switch to switch between Internal or External CV/Gate: |
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Next: MODS 2 - Additional CV In's