Troubleshooting – Roland eBand JS-8 User Manual

Page 43

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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.