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Messages and Error Messages
This section lists the messages (error messages) that the TD-20 produces and explains the meaning of each
message, giving you the appropriate action to take.
fig.Message_70
When an indication of “ACCEPT” is shown above [F5] as in the
figure, pressing that button will close the message window.
Error Messages
Message
Meaning Action
Backup Battery Low!
The internal backup battery of the TD-20 (a
battery that maintains data in the user mem-
ory) has run down.
Contact your dealer or a nearby Roland service
center to have the battery replaced.
Backup NG! Data in the TD-20’s memory may be corrupt-
ed. The TD-20’s internal backup battery (the
battery used for saving User memory data) is
fully drained; internal data has been lost.
Contact your dealer or a nearby Roland service
center to have the battery replaced. Follow the
messages appearing on the screen to carry out
Factory Reset (p. 81); you will then be able to
use the unit temporarily.
MIDI Communication Error! It is possible that the power has been turned
off for the MIDI device connected to the TD-
20’s MIDI IN connector.
Check the power of the connected MIDI de-
vice.
System Error! A problem has occurred with the internal
system.
Contact your dealer or a nearby Roland service
center.
Measure Maximum! The maximum number of measures that can
be recorded to one pattern has been exceed-
ed; no further recording or editing that adds
measures can be carried out.
Delete unneeded measures from the pattern
being recorded or edited (p. 66).
Step Maximum! The maximum number of steps that can be
recorded to one chain has been exceeded; no
further editing that adds steps can be carried
out.
Delete unneeded steps from the chain being
edited (p. 82).
Data Overload! Pattern contained an excessive amount of da-
ta, and as a result could not be output suc-
cessfully from MIDI OUT.
Try eliminating a part that has too much data.
Not Enough Memory! Pattern recording or editing could not be car-
ried out because there was not enough inter-
nal memory.
Try deleting patterns that are no longer needed
(p. 66).
No Card! No card is in the memory card slot. Insert a memory card.
No Space! There are no empty space on the memory
card.
Delete unneeded data (p. 72).
No Data! No data you request on the memory card. –
Unsupported! A card the size of which is not supported by
TD-20 has been inserted.
Cards supported by TD-20 are 3.3 V Compact-
Flash cards with the capacity of 16 to 512 MB.
Check the card.
Unformatted! A card the format of which is not supported
by TD-20 has been inserted.
Format the card (p. 72).
Card Damaged! The data stored on the card has been corrupt-
ed.
Format the card (p. 72).
BULK DUMP
Checksum Error!
The checksum value of a system exclusive
message was incorrect.
Correct the checksum value.
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