Samick DCP-8 Manual page 47

Now you are back in Performance Mode, and the Data Control knob has been
assigned to send Bank LSB values.
A MIDI Bank LSB change will be sent out each time the Data Control knob is turned.
The LED display will show the Bank LSB value (between 0 and 127) as you turn
the knob.
Sending Bank MSB Changes
There are two ways to send Bank MSB changes. You can either enter a specific
MSB (Most Significant Byte) value using the Numeric Data Entry Keys, or you can
assign the Data Control knob to send Bank MSB changes. (Please note that after any
kind of bank message, it is usually necessary to follow up with a MIDI Program
Change message in order to affect a sound change on the receiving device.)
1.To Send a Specific Bank MSB Value Using the Numeric Data Entry Keys:
Press the [Voice/Function] button to enter Function Mode.
Press the Bank MSB Key (Bb5).
Data Control
[Assignable]
Voice / -
Function
Bb5
43