Roland VIMA RK-300 Owner's Manual page 207

Symptom
The image is not shown
cleanly in the television
Lyric display is wrong
Notation display is wrong
Something's wrong with the sound from the microphone
Microphone volume is too
low (or inaudible)
Your voice in the microphone
sounds wrong
The volume of the
microphone changes
Cause/Action
Even if you make all of the recommended settings, there may be cases in
which the image is not shown cleanly in your television. (For example, the
display may not match the screen size, or may be skewed from the
center.)
For some types of music files, the lyrics may sometimes be displayed
incorrectly.
In the notation screen, the lyrics or notes may sometimes be incorrectly
shown outside the screen display region.
If you've selected a channel that does not contain performance data,
notes will not be shown in the notation. In the notation display settings,
change the displayed channel (melody channel).
The displayed notation is not suitable for sophisticated or complex
songs. Also, grace notes and notes shorter than a 16 note cannot be
shown.
In some cases, lyrics and notes may sometimes be shown outside the
display area of the notation screen, and will not appear correctly.
Is the microphone connected correctly?
Could the [MIC 1]/[MIC 2] knobs be set to the minimum volume?
The microphone 1 volume is adjusted with the [MIC 1] knob, and the
microphone 2 volume is adjusted with the [MIC 2] knob.
Could the [ECHO] button be lit?
If the [ECHO] button is lit, echo (reverberation) will be added to your voice
in the microphone.
Could the [EFFECTS] button be lit?
If the [EFFECTS] button is lit, an effect will be applied to your voice in the
microphone.
Could the [INPUT] button be lit?
If the [INPUT] button is lit, the MIC 1/GTR jack will be a guitar input.
Turning the panel [VOLUME] knob will adjust the overall volume
including the microphone volume.
To change the microphone volume, use the [VOLUME] knob to set the
overall volume for the entire RK-300, and then use the [MIC 1] knob or
[MIC 2] knob to adjust the volume of each microphone.
Troubleshooting
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