Some of Mutable Instruments’ digital modules require a +5V supply in addition to the +/- 12V. While recent cases, bus-boards, or power systems (such as TipTop Audio’s Zeus line, or MakeNoise Mini-PWR) provide this +5V source, older Doepfer cases are only equipped with +12V and -12V.
To bring to your system the +5V rail needed by Mutable Instruments modules, an adapter such as Volts can be used.
First of all, make sure that your case/bus board does not already have a +5V source. Doepfer cases/bus boards have 3 LEDs, one for each voltage (-12V, +12V and +5V). Power your system on and check that the +5V LED is off before installing the power adapter! Using Volts in a case already equipped with a +5V source might damage your equipment.
Your system must be powered off during the installation of the power adapter. Insert the Volts power adapter on one of the 2×8 pin connectors on the bus board. Make sure that the -12V text printed on your bus-board is on the same side as the -12V text printed on the Volts module; and that all male pins of the bus board are inserted into Volts‘ connector.
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