FX-related buttons do not work.

For example, if the [DECK1] button is lit, you can operate the effect unit FX1 of your computer connected to the USB terminal that is selected with CH1 INPUT SELECT switch.

Likewise, if the [DECK3] button is lit, you can operate the effect unit FX1 of the computer that is selected with the CH3 INPUT SELECT switch.

When the [DECK2] button is lit, you can operate the effect unit FX2 of the computer connected to the USB terminal that is selected with CH2 INPUT SELECT switch.

Likewise, if the [DECK4] button is lit, you can operate the effect unit FX2 of the computer that is selected with the CH4 INPUT SELECT switch.