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Error Messages
Message Meaning Action
MIDI OFFLINE! The MIDI IN connection was broken.
Check that there is no problem with the MIDI cable connected
to the GR-55’s MIDI IN, and that the MIDI cable was not
disconnected.
MIDI BUFFER FULL!
An unusually large amount of MIDI data was received,
and could not be processed.
Reduce the amount of MIDI messages that are being
transmitted.
MEMORY DAMAGED!
It is possible that the contents of memory have been
damaged.
Please execute a Factory Reset.
If this does not resolve the problem, contact your dealer or a
nearby Roland service center.
USB MEMORY NOT READY! USB memory is not connected. Connect USB memory.
USB MEMORY READ ERROR! The USB memory could not be read.
Use your computer to format the USB memory.
* When you format USB memory, all of its contents will be
lost.
USB MEMORY WRITE ERROR! The USB memory could not be written.
Check whether the USB memory might be write protected.
If the USB memory is not write protected, use your computer to
format the USB memory.
* When you format USB memory, all of its contents will be
lost.
UNFORMATTED USB MEMORY! The USB memory is not formatted.
The GR-55 can use USB memory that is formatted as FAT.
(Normally, when you purchase USB memory, it will be formatted
as FAT, so you can start using it immediately.) However, USB
memory that was formatted by a computer or other device as
something other than FAT (e.g., NTFS) will not be recognized by
the GR-55.
Use your computer to format the USB memory in FAT format. (It
is not possible to format USB memory using the GR-55.)
In Computer (or My Computer), right-click the USB drive,
choose “Format,” and then choose “FAT” as the le system so
that the USB memory will be formatted in FAT format. For
details on formatting USB memory, refer to your computer’s
documentation.
* When you format USB memory, all of its contents will be
lost.
CURRENTLY CONNECTED TO
COMPUTER VIA USB!
Since there is a USB cable connected to the USB
COMPUTER connector, the AUDIO PLAYER function
cannot be used.
Disconnect the USB cable from the USB COMPUTER connector,
then try using the AUDIO PLAYER function.
AUDIO FILE NOT FOUND! There is no audio le for the AUDIO PLAYER to play. Save the audio le that you want to play on the USB memory.
UNSUPPORTED AUDIO FILE! This audio le cannot be played by the GR-55. —