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Owners Manual (GR-55_OM.pdf) - Roland

Owners Manual (GR-55_OM.pdf) - Roland

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Troubleshooting<br />

When using the <strong>GR</strong>-<strong>55</strong> with other MIDI devices / When using the <strong>GR</strong>-<strong>55</strong> with the computer<br />

Problem Items to check Action Page<br />

The external sound module<br />

connected to the MIDI OUT<br />

connector does not sound<br />

Only one string sounds on the<br />

external sound module (some<br />

strings do not sound)<br />

Pitch is incorrect (different than the<br />

guitar pitch)<br />

When you view the note messages<br />

recorded in your sequencer, the<br />

pitches differ from what is actually<br />

sounded<br />

MIDI messages not being<br />

transmitted/received<br />

Do the MIDI channels of the transmitting<br />

and receiving devices match?<br />

Could you have turned down the volume<br />

using the volume control of the GK pickup or<br />

the expression pedal?<br />

Could you be using Mono mode to transmit<br />

from the <strong>GR</strong>-<strong>55</strong> to a sound module that<br />

is unable to receive six MIDI channels<br />

simultaneously?<br />

Is the Bend Range of your external sound<br />

module set to +/- 24?<br />

Match the MIDI channels. p. 79<br />

Raise the controller or volume. —<br />

Use a sound module that supports multitimbral operation.<br />

Use the <strong>GR</strong>-<strong>55</strong> in Poly mode.<br />

Set the Bend Range of your external sound module to +/- 24. —<br />

Is your guitar tuned accurately?<br />

Use the <strong>GR</strong>-<strong>55</strong>’s Tuner function to tune your guitar accurately. You<br />

must also adjust your guitar so that accurate pitches are sounded<br />

even on the high frets.<br />

p. 13<br />

The <strong>GR</strong>-<strong>55</strong> expresses the pitch as a<br />

combination of note data and pitchbend<br />

data. This means that if you’re looking only Check the pitchbend data. —<br />

at the note data, the pitches may appear<br />

different than what you played.<br />

Could there be a short in the MIDI cable? Try replacing the MIDI cable. —<br />

Are the <strong>GR</strong>-<strong>55</strong> and the external MIDI device<br />

connected properly?<br />

Check the connection with the external MIDI device. p. 67<br />

Are the MIDI channels matched? Check to confirm that both devices are set to the same MIDI channel. p. 79<br />

p. 79<br />

If you are transmitting from the <strong>GR</strong>-<strong>55</strong>, have<br />

the settings for transmission been made?<br />

Check the Program Change message transmission ON/OFF setting<br />

and the settings for the controller number to be transmitted.<br />

If this is turned “ON,” pitch bend data will not be output, and the<br />

pitch will change in semitone steps. Check the master parameter<br />

GTR-MIDI-CHR<strong>OM</strong>ATIC, and turn it “OFF.”<br />

p. 79<br />

Pitch does not change smoothly<br />

Could the master parameter GTR-MIDI-<br />

CHR<strong>OM</strong>ATIC be “ON”?<br />

p. 79<br />

When using USB memory<br />

Problem Items to check Action Page<br />

USB memory is not detected / Song<br />

files are not displayed<br />

Can’t back up to USB memory<br />

Check the format of your USB memory. The<br />

<strong>GR</strong>-<strong>55</strong> can use USB memory that is formatted<br />

as FAT. (Normally, when you purchase USB<br />

memory, it will be formatted as FAT, so you<br />

can start using it immediately.) However, USB<br />

memory that was formatted by a computer<br />

or other device as something other than FAT<br />

(e.g., NTFS) will not be recognized by the<br />

<strong>GR</strong>-<strong>55</strong>.<br />

Use your computer to format the USB memory in FAT format. (It is not<br />

possible to format USB memory using the <strong>GR</strong>-<strong>55</strong>.)<br />

In Computer (or My Computer), right-click the USB drive, choose<br />

“Format,” and then choose “FAT” as the file system so that the USB<br />

memory will be formatted in FAT format. For details on formatting<br />

USB memory, refer to your computer’s documentation.<br />

* When you format USB memory, all of its contents will be lost.<br />

Could the USB memory be write protected? Disable write protection. —<br />

Is there sufficient free space on the USB<br />

memory?<br />

Use USB memory that has sufficient free space. —<br />

—<br />

91

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