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reface CS/DX/CP/YC Owner’s Manual
Appendix
Troubleshooting
If this instrument does not behave as expected—for example, not producing the correct sound or pro-
ducing no sound at all—please try to resolve the issue as described below. Many issues can also be
resolved by doing a Factory Reset (page 40). If any specific issue should persist, please contact your
Yamaha dealer or a service center (see the back of this booklet).
Issue
Model(s)
Suspected cause Solution
The instrument turns off unex-
pectedly.
All
This is normal when the
Auto Power-Off function is
enabled.
If necessary, you can deacti-
vate the Auto Power-Off func-
tion to prevent it turning off the
instrument again. (Page 41)
No sound is
produced.
No sound is pro-
duced by the
built-in speakers.
All
The volume is turned fully
down.
Raise the volume by using the
[VOLUME] or [VOL] slider.
Headphones are con-
nected.
Unplug the headphones.
(Page 5)
Local Control is turned off.
Turn on Local Control. (Page
43)
Speaker Output is turned
off.
Turn on Speaker Output.
(Page 42)
CS
YC
MIDI volume or expression
has been set to a very low
level by a foot controller.
If a foot controller has been
connected to the [FOOT
CONTROLLER] jack, try
using it to increase the vol-
ume.
Sound input via
the [AUX IN] jack
cannot be heard.
All
The volume on the con-
nected audio equipment
has been turned fully down.
Raise the volume on the con-
nected audio equipment.
The instrument
stopped produc-
ing sound when a
setting was
changed.
CS
The Attack (A) setting from
the EG section is too high.
Lower the [A] slider.
CS
The filter’s cutoff frequency
is too low.
Adjust the filter’s cutoff fre-
quency.
CS
DX
Amplitude (AMP) is being
modulated by the LFO, the
LFO’s depth is high, and its
speed is low.
Change the LFO assignment,
reduce the depth, or increase
the speed.
DX The carrier level is set to 0. Increase the carrier level.
DX All carriers are turned off.
Turn a carrier on and ensure
that its level is sufficiently
high.
DX
The FREQ or RATIO set-
ting for a carrier (or multiple
carriers) is too high.
Decrease the FREQ or RATIO
setting.
YC
All of the FOOTAGE sliders
are fully up. In this condi-
tion, the volume is 0.
Lower some of the FOOTAGE
sliders.