Boss PS-5 Owner's Manual page 30

* Regardless of the pedal switch's on/off
position, no sound is output when the
BALANCE knob is turned to DIR in
T.ARM/FLUTTER mode.
Sound is distorted:
Can't get harmonies or pitches:
Is the battery low?
As the battery is drained, the CHECK indi-
cator dims, and the PS-5 may start to func-
tion incorrectly. Replace with a new battery
(page 28).
Is the instrument tuned correctly?
Make sure to tune your instrument properly. If
the instrument is out of tune, it may cause a slip
in the harmony's tuning as well. In addition, be
sure to set the reference pitch A4 to 440 Hz.
30
Is the sound being input at excessive
volume.
Monitor post-distortion volume levels when
the PS-5 is connected after a distortion ef-
fects device in the signal path. Excessive vol-
ume levels can cause slippage in the
harmony's tuning.
Is the EV-5's pedal volume turned all
the way down?
Is the EV-5's minimum volume set to
the lowest value (0)?
Is the H.R KEY switch set to the key
of the song being performed?