Troubleshooting - Yamaha PortaTone PSR-8000 Owner's Manual

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Troubleshooting

Troubleshooting
Symptom
Noise is heard when the power is turned on
or off.
No sound.
The sound can't be adjusted by some mixing
console controls.
The accompaniment does not start.
Some notes do not sound or are prema-
turely cut off.
When a voice is changed, the previously
selected effect is changed.
There is a slight difference in sound quality
between notes played on the keyboard.
Some voices have a looping sound.
Some noise or vibrato is noticeable at higher
pitches, depending upon the voice.
Some voices will jump an octave in pitch
when played in the upper or lower registers.
The auto-accompaniment chord does not
change even when a different chord is
played or the chord is not recognized.
148
Possible Cause/Solution
This is a normal result of the power surge that occurs when the unit
is turned on or off, and is not a problem.
The volume controls or foot volume are turned all the way down.
Set the volume controls (both the master volume control and the
mixing console part volume controls) and foot volume to a reason-
able listening level.
Are the desired parts turned on?
A pair of headphones is plugged into the PHONES jack. Unplug the
headphones.
A plug is inserted in the LOOP SEND jacks. Unplug the LOOP SEND
jacks.
Is the FOOT SWITCH connected to the FOOT VOLUME connector?
The FADE OUT switch is on and has reached the end of its duration,
muting the sound. Press the FADE IN/OUT switch so that its indicator
goes out.
MIDI local control is turned OFF. Turn MIDI local control ON using the
appropriate F9 MIDI function.
Make sure that the [TALK] button is not engaged. The TALK settings
take precedence when TALK is engaged. See page 130.
The MIDI CLOCK setting is set to EXTERNAL. Reset the MIDI
CLOCK to INTERNAL using the appropriate F9 MIDI function.
The maximum polyphony has been exceeded. You can play up to 64
notes at the same time—including auto-accompaniment, song
playback, multi pad notes etc.. Notes exceeding this limit will not
sound. When using AUTO ACCOMPANIMENT or HARMONY/ECHO,
be careful not to exceed the limit.
This is normal, each voice has its own suitable preset values which
are automatically recalled when the corresponding F4 VOICE SET
parameters are turned on (page 128).
This is normal and is a result of the PSR-8000's sampling system.
Some voices have a pitch limit which, when reached, causes this
type of pitch shift. This is normal.
Are you sure you're playing on the left-hand section of the keyboard?
You may be using single-finger type fingering in the fingered mode,
or vice-versa. Use the correct type of chord fingering for the selected
auto-accompaniment fingering mode.
Is the auto-accompaniment fingering mode set to MANUAL BASS?