Roland D-50 Owner's Manual page 104

APPENDIX TABLES
4. ERROR MESSAGE TABLE
The back—up battery in the D~-5SO is low.
Consult your local Roland Service Department.
Check Internal Batters
DUAL
The back-up battery (CR 2016) in the optional
Memory Card (M-256D) is low. Replace it with
a new one as shown in the instructions of the
Memory Card.
You have tried to write data into the D-50's
memory with the Memory Protect on the D—50
set to ON. Set Memory Protect to OFF.
You have tried to write data onto the Memory
Card with the Memory Protect Switch on the
Memory Card in the ON position. Set it to OFF.
The Memory Card is not connected securely.
You pushed the Chase Button in a mode other
than Whole or Dual Key Mode. Select the Whole
or Dual Key Mode.
Set key mode WHOLE or
Tneut Bata Error
Cancel ..-
You have assigned a value that exceeds the
valid range.
The destination Block you have selected differs
from the source Block. Reselect the appropriate
Block, and repeat Block Copy.
Data is not transferred properly. Push the Exit
Button, check if the connections are correctly and
securely made and repeat the transfer procedure.
MICI Communication Error
Data is not properly loaded or saved between the
internal memory of the 0-50 and the Memory
Card. Read the instructions of the Memory Card,
push the relevant Selector Button
(Retry)
and
carefully repeat the loading or saving. To leave
the transfer mode, push
the relevant Selector
Button (Cancel).
Verify Error. CRetreud (Cancel?
Tilegal Card
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