Troubleshooting - Yamaha Portatone PSR-GX76 Owner's Manual

Troubleshooting

Problem
When the PSR-GX76 is turned on or off, a popping
sound is temporarily produced.
When using a mobile phone, noise is produced.
There is no sound even when the keyboard is
played or when a song is being played back.
Playing keys in the right hand section of the key-
board does not produce any sound.
The sound of the voices or rhythms seems unusu-
al or strange.
The auto accompaniment doesn't turn on, even
when pressing the [ACMP ON/OFF] button.
The accompaniment or song does not play back
even when pressing the [START/STOP] button.
The accompaniment does not sound properly.
When playing back one of the Pianist styles (#086
- #100), the rhythm cannot be heard.
Not all of the voices seem to sound, or the sound
seems to be cut off.
A strange "flanging" or "doubling" sound occurs
when using the PSR-GX76 with a sequencer.
(This may also sound like a "dual" layered sound
of two voices, even when Dual is turned off.)
The footswitch (for sustain) seems to produce the
opposite effect. For example, pressing the foot-
switch cuts off the sound and releasing it sustains
the sounds.
The sound of the voice changes from note to note.
Possible Cause and Solution
This is normal and indicates that the PSR-GX76 is receiving electrical
power.
Using a mobile phone in close proximity to the PSR-GX76 may pro-
duce interference. To prevent this, turn off the mobile phone or use
it further away from the PSR-GX76.
Check that nothing is connected to the PHONES/OUTPUT jack on
the rear panel. When a set of headphones is plugged into this jack,
no sound is output.
When using the Dictionary function (page 45), the keys in the right
hand section are used only for entering the chord root and type.
The battery power is too low. Replace the batteries. (See page 8.)
Make sure the Style mode is active before using the auto accompa-
niment. Press the [STYLE] button to enable style operations.
When External Clock (page 70) is set to on and Clock are not re-
ceived, song or style playback cannot be started.
Make sure that the Accompaniment Volume (page 41) is set to an ap-
propriate level.
Make sure that the Split Point (page 44) is set to an appropriate value.
This is normal. The Pianist styles have no drums or bass — only pi-
ano accompaniment. The accompaniment of the style can only be
heard when accompaniment is set to ON and keys are played in the
auto accompaniment section of the keyboard.
The PSR-GX76 is polyphonic up to a maximum of 32 notes. If the
Dual voice or Split voice is being used and a style or song is playing
back at the same time, some notes/sounds may be omitted (or "sto-
len") from the accompaniment or song.
When using the accompaniment with a sequencer, set MIDI Echo (or
the relevant control) to "off." (Refer to the owner's manual of your par-
ticular device and/or software for details.)
The polarity of the footswitch is reversed. Make sure that the foot-
switch plug is properly connected to the SUSTAIN jack before turning
on the power.
The AWM tone generation method uses multiple recordings (sam-
ples) of an instrument across the range of the keyboard; thus, the ac-
tual sound of the voice may be slightly different from note to note.
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