2.2.6 Calibration
BE CAREFUL – MAINS VOLTAGE present inside the synth when it is turned on
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Connect the synth to a loudspeaker via an amp or mixer, or to an oscilloscope.
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Connect the mains.
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Turn on.
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Switch to Pulse, 50%, no PWM modulation.
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Play middle C and adjust the trimpot on MIDI Upgrade
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board for a sound closest to
square wave. On the 'scope adjust for best shape closest to a square wave.
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Turn off and disconnect from the mains power socket.
2.2.7 Replacing The Keyboard
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Turn the keyboard over and slide it back into the wooden base.
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Refit the screws inside the case (Section 2.2.2).
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Using the cable ties provided tie down the MIDI and Filter modulation wires, keeping them
away from the metal heatsink on the power supply.
2.2.8 Closing The Case
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Replace the front panel back on the wood base (Section 2.2.1).
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Replace all six black panel screws.
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Turn the synth over on to its front and refit the two keyboard screws.
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10
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