Overall Operations; Troubleshooting - Roland VM-C7100 Owner's Manual

Troubleshooting

If a system malfunction occurs, the following solutions should be checked first. If the
problem can still not be resolved, contact the nearest Roland Service Center, or your
dealer.

Overall operations

No sounds are heard.
Equipment power is not turned on.
Each device is not connected correctly.
Audio cable is disconnected.
The amplifier or mixer volume is set too low.
Sound volume is too low.
• Channel fader
• Master fader
• Monitor-related knobs
• PHONES knob
• Others. Setting of internal buses
• Setting of output level of the inserted effect
Sound is not generated from the connected output jack but from another one.
MUTE ALL OUTPUTS button on the processor is turned on.
An attempt has been made to send a flex bus signal while "INT" is selected for
FLEX BUS MODE.
No sounds are heard on some channels.
Channel sound volume is too low.
Sounds are muted because solo/mute/audio is selected.
When digital connection is employed, input sounds are not
accepted correctly.
Improper word clock setting (p. 32).
There is a conflict between the specified setting and actual connection of the
digital-in connector (p. 32).
Voice signals are not provided from the digital audio equipment.
The format of the digital signals used is not identical to the predetermined one.
Some devices employ a format specially prepared for digital signals. Any
digital/audio equipment connected must be AES/EBU or S/P DIF compatible.
Sounds contain noise or are distorted.
Input gain is not proper.
Extremely high input gain tends to distort sounds, while very low input gain
tends to produce noise. Adjust PREAMP GAIN to an appropriate level.
Improper setting of the attenuator or equivalent device.
Sounds are distorted by the channel equalizer.
Excessive equalizer settings can distort sounds. Adjust currently selected
equalizer settings.
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