Yamaha VP1, Owner'S Manual

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App - 5
REFERENCE
Appendix
Troubleshooting
This section provides information that may help you solve problems that arise with VP1 operation. Many problems
are simply the result of inappropriate settings or bad connections. If the VP1 fails to produce sound, or if sound
quality is other than you expect, go through the troubleshooting checks described here to see if you can find the
cause.
Begin by running through the following three checks. These should help you locate the source of the problem.
■
Connect a set of headphones to the VP1. Play on the keyboard and
check that sound through the headphones is normal.
If headphone sound is OK but output through the amps or mixer is not, you may have
a bad cable, or your amps or mixer may be improperly connected or set.
■
Move all controllers around to see whether the sound quality
improves.
Some controller combinations can produce unexpected sound or even total silence. If
normal sound returns when you move the controllers, you may have made an
inappropriate scene or controller setting.
■
Try changing to different voices. If the problem occurs with only one
voice, the voice settings are probably at fault.
If the same problem occurs on all voices, check your SYSTEM settings.
Now refer to the relevant section below for specific clues about what may be wrong.
Problems Related to Amplifier, Mixer, or Connections
No sound
• Is power to the amplifier on?
• Is the volume on the amplifier or mixer set correctly?
• Is the amplifier or mixer correctly connected to the VP1’s OUTPUT jacks?
(
➝
BASICS: 1-12)
• Are any of the cables broken or shorted? Try replacing the cables.
Distorted sound
• Have you mistakenly connected the VP1’s OUTPUT jacks to the microphone input
jacks on your external amp or mixer?
Improper stereo positioning
• Check that the mixer channels connected to the L and R OUTPUTS are correctly
assigned to left and right pans.
Troubleshooting