The new PS3J100 joystick on the Vox has a handy additional feature. You can now operate the transmitted light shutter using the buttons on the joystick rather than having to do that in the software. Here's the procedure:

When it first initialises, the LCD displays the Absolute Position screen. Press the Menu button twice (Arrow 1 in the image below).

After pressing the menu button twice, the display shows the Shutter Control (SH1). Press the shutter button (Arrow 2 in the image below) to toggle the shutter open and closed.

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