139
Appendices
Troubleshooting
If the SC-8850 does not function in the way you expect, first check the following
points. If this does not resolve the problem, consult your dealer or a nearby Roland
Service Station (listed at the end of this manual).
Cannot turn the power on
● Is the power cable correctly plugged into an outlet and the SC-8850?
The volume level of the instrument connected to Audio
output/input jacks is too low.
● Could you be using a connection cable that contains a resistor?
Use a connection cable that does not contain a resistor.
Performance is incorrect when playing back music files carrying
the General MIDI/GS logo
● Is the Device ID set to 17? (p.50)
A specific Part does not sound
● Is the lowest dot in the bar display off?
Parts for which this dot is off have been muted. Turn Part Mute off. (p.35)
● Is the volume level of the Part turned down? (p.32)
● Does the MIDI Receive channel of the Part match the MIDI Transmit channel of
the connected MIDI device? (p.145)
Some parts do not sound when you press the [VOLUME] knob
● Try restoring the GS basic settings. (p.24)
● Check the Prevw Velo setting. (p.63)
Prevw Velo is the parameter that specifies the level of the sound that is heard when
you press the [VOLUME] knob.
● Make sure that the part level has not been lowered. (p.32)
● Make sure that Part Mute has not been turned on. (p.35)
Sometimes the part mode may have been muted during operation. If you would pre-
fer not to search for the muted part, you may simply wish to initialize. (p.24)
A specific keyboard area does not sound
● Has the Keyboard Range been set? (p.57)
Sound is heard but the bar indicator does not move
● Is the sounding part different than the displayed part group?
If so, press [F1] – [F4] in the Part Basic screen to select the part group that is dis-
played.
Cannot select the desired sound
● Are you sending an incorrect Program number? (p.41)
● Are you setting the SC-8850 to SC-55 Map, SC-88 Map, or SC-88Pro Map?
(p.36)
If a message appears
during operation, consult
the following section If a
Message Appears (p.156).
Part Basic screen (p.29)
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