on, and remove stylus 1 from its housing. switch in one of the voices, (preferably the 8' or 16'), leaving the photo switch (5) in the neutral or flat position.
turn the volume control (18) fully clockwise, and apply the metal tip of the stylus to the keyboard. now, by moving the left hand slowly over the photo control (4), you will obtain a swell effect. the closer your hand is to the photo control, the louder will be the volume. move your hand backwards and towards over the photo control until you get the 'feel' of its operation.
the next step is to slide the stylus up and down the keyboard, 