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Appendix IV. Trouble and exclude
Faults
When you turn on the keyboard, it will be
some noise.
When you turn on the power switch, play with
the keyboard, and its no voice at all.
Distortion sound or interruption, or even can
not work at all.
The note and the timbre of the note has a
slight difference in a tone.
When use the function of sustain, some tone
has long sustain but some has short sustain.
The main volume and the accompaniment
volume is abnormal.
In sync function, but the auto accompaniment
does not work.
When use the external adapter, put on the
power switch, no sound, LCD or LED no display.
When use the batteries, the keyboard is no
sound when put on LED/LCD has no display.
The pitch of note is not correct.
When use the mobile phone, the keyboard has
the noise.
Appendix V.Technical Specifications
Possible causes/resolution
Do not worry; it's the normal phenomenon.
Check the main volume button if it is in the
proper position and headphone jack was
connected with other equipment, so that the
built-in speaker system cut off.
Use unqualified power adapter or the electric
power of the battery is not enough, please use
the power adapter that equipped with this
keyboard or replace the batteries.
This is normal phenomenon caused by
different tone sample diapason.
This is normal phenomenon because the best
length of the sustain for different tone has
been set.
Check the main volume and the
accompaniment volume are set at the proper
position.
Check whether single chord or finger chord
were set. At this situation, play 19keys in the
left of the keyboard.
Check whether power socket has the
electricity, and the power adapter was well
inserted, the power jack has the poor contact
or the voltage is not enough.
Check whether batteries polarity was correct
and the batteries have run out.
Check whether the parameter of transposes is
"00".
Mobile phone can disturb the keyboard, to
avoid the noise, please turn off the phone or
use it in far place.
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