Yamaha PSR-320 - Manual (Page 64)

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Appendix: Troubleshooting
Something not working as it should? In many cases what appears to be a malfunc-
tion can be traced to a simple error that can be remedied immediately. Before assum-
ing that your PSR-320/420 is faulty, please check the following points.
POSSIBLE CAUSE/SOLUTION PROBLEM
The speakers produce a “pop” sound
whenever the power is turned ON or
OFF.
This is normal and is no cause for alarm.
Reduced volume.
Poor sound quality.
Improper song playback.
“Btry Low” sometimes appears.
Display has gone out and the panel
setting has been set to default.
The batteries probably need to be replaced. Replace all six batteries with new ones
of the same type, as described on page 6.
The Local Control function could be turned off. Make sure Local Control is turned on
(page 59). No sound when the keyboard is
played.
You are probably exceeding the maximum polyphony of the PSR-320/420. The
PSR-320/420 can play up to 28 notes at the same time — including split, dual, auto-
accompaniment, song memory, and multi pad notes. Notes exceeding this limit will
not sound.
Not all simultaneously-played notes
sound.
Auto accompaniment won’t sound right if you’re using SINGLE FINGER type finger-
ing when the SINGLE FINGER mode is not selected (page 22).
Are you sure you’re playing in the Auto-Accompaniment section of the keyboard?
Are you playing chords that the PSR-320/420 can recognize (see chord types on
page 23)?
Auto accompaniment won’t function
properly. No lower keyboard sound.
The selected voice does not sound
when the keyboard is played. Make sure that the Keyboard Volume, Split Voice Volume, and/or Dual Voice Volume
parameters are set at an appropriate level (pages 53, 16, and 18).
Rhythm doesn’t sound when started. Some sections of some styles do not use the accompaniment rhythm track.
Sustain pedal operation will be reversed if you turn on the power or plug in the pedal
while pressing the pedal. For normal operation turn off the power then turn it back
on while the pedal is not pressed.
Operation of the sustain pedal is
reversed.
The cursor is not located at the parameter to be edited. Make sure that the cursor is
located at the parameter to be edited (the parameter should be flashing). The desired parameter cannot be
edited.
Make sure that the accompaniment tracks you want to hear are not muted (page
29), and that the Accomp Volume parameter is turned up to a reasonable level
(page 54).
Accompaniment does not play prop-
erly.
Neither of these functions can be turned ON if a percussion kit voice is selected.
Make sure a voice between number 01 and 141 is selected.
The Harmony effect cannot be turned ON when the FINGERED FULL mode is in
use.
The Harmony/Dual Voice/Digital Ef-
fect function will not turn on.
Cartridge data cannot be selected or
cannot be played back correctly.
Individual registration or song
memory data transmitted via bulk
dump from an external sequencer or
other device is not received by the
PSR-320/420.
The electrical contacts on the Music Cartridge are affected with dust. Insert and
remove the Music Cartridge several times. This may solve the problem. If the
problem still happens, wipe and clear the electrical contacts on the Music Car-
tridge with a dry soft cloth.
Make sure that an appropriate Yamaha Music Cartridge is properly plugged into
the cartridge slot (page 44).
Transmit the data with no more than a 2-second break between blocks, or transmit
as entirely separate data.