Samick DCP-8 Manual page 48

Using the Numeric Data Entry keys, enter the Bank MSB value you want to send.
NOTE
As an alternative to using the Numeric Data Entry Keys, you could instead use the
Data Control knob to choose the Bank MSB value in this step.
Press the Enter Key (C7) to send the MIDI command.
2.To assign the Data Control Knob to Send Bank MSB Changes:
Press the [Voice/Function] button to enter Function Mode.
Voice / -
Function
Press the Bank MSB Data Control Key (Bb1).
The LED display will momentarily show:
NOTE
That this is different than the Bank MSB Key (Bb5) that you used to input a
single Bank MSB value.
Bb1
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