Roland eBand JS-8 - Manual (Page 43)

41
Appendices
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Troubleshooting
Power not turning on
Can’t run the unit
No sound
Recorded sound is distorted
Can’t record/can’t import songs
Can’t play MP3/ WAV fi le
Problems with SD cards
Can’t set AB REPEAT segment times correctly
Problems with USB memory
Low volume from the device connected
to the GUITAR/MIC IN or AUX IN jack
Problems with USB connection
• Make sure the JS-8's AC adaptor is properly connected
to the power outlet and the JS-8 (p. 4).
• Is the JS-8 connected via USB to the computer appli-
cation?
• Is the MASTER LEVEL knob turned down? (p. 6)
• Is the SPEAKER switch set to OFF? (p. 31)
• Are there any songs on the SD card?
• Could the guitar level be excessive?
• Do you have an SD card inserted?
• Is the SD card lock on?
• Does the SD card have too little free space available?
• Are you using an SD card that is known to work with
the JS-8?
• Do you have more than 4,000 songs (including WAV
and MP3 fi les)? (p. 28) Delete any songs you don't
need. (p. 31)
• The JS-8 only handles up to 2,000 artist, album, and
keyword headings. Delete any unneeded artists,
albums, or keywords. (p. 28)
• Are the MP3 fi le's sampling rate and bit rate or the
WAV fi le's sampling rate and quantization bit rate sup-
ported by the JS-8? (p. 3)
• Increasing the playback speed or changing the pitch
of MP3s with higher bit rates may not be eff ective in
playing back these fi les. In such cases, convert the
song to JS-8 format. (p. 38)
"Unsupported Card!" displayed
• Is the SD card completely inserted?
• Have you inserted an SD card that is not supported by
the JS-8?
SD card data corrupted
Corruption of data on SD cards may be caused by the follow-
ing. Reinitialize the SD card.
• Could the power have been turned off during record-
ing or while the JS-8 was connected via USB to your
computer?
• Did you disconnect the USB cable while the JS-8 was
connected to a computer?
• Did you remove the SD card while the JS-8 was still
turned on?
• Could the SD card have been subjected to strong
impact?
• You cannot set the interval between Point A and Point
B to a value less than 0.5 seconds. Increase this inter-
val so that it is at least 0.5. seconds.
• You may be unable to properly play back AB REPEAT
segments with MP3s. In such cases, convert the song
to JS-8 format. (p. 38)
USB memory not recognized
• Is the USB memory securely connected?
• The JS-8 supports FAT-formatted USB memory. On a
computer, reformat the USB memory to FAT format.
Cannot EXPORT to USB memory
• Is the USB memory write protected?
• Does the USB memory have too little free space avail-
able?
• Are you using a connection cable that includes a resis-
tor? Use connection cables that do not contain resis-
tors.
• Is the external device's volume properly adjusted?
• Is the GUITAR LEVEL knob turned down? (p. 8)
• Is a mic connected with INPUT GAIN switched to the
guitar setting? Adjust the INPUT GAIN. (p. 31)
• Is the USB cable properly connected?
• Is the computer turned on?
• Are you using an OS supported by the JS-8?
• Is the SD card completely inserted?
• Have you inserted an SD card that is not supported by
the JS-8?
Adjust the GUITAR
LEVEL (p. 8) or SONG
LEVEL (p. 38) so that ""
does not light.