37
• Check that the Pre-Drive and Drive parameters in the Distortion/Insert block
are set to appropriate levels.
• Make sure that you are using the clean channel of the amplifier.
• Check all connections to the device.
• Make sure that the Distortion/Insert block is turned on, and that the effect type
is correct (6 – 12).
• If both programs use either Delay or Reverb and have similar settings, the
Delay or Reverb sound continues.
• Make sure that the corresponding Modulation block is on, and that effect type
8 is selected.
• Check that the Minimum Volume parameter is set to an appropriately low
value.
• When Pedal Wah is selected and the block is on, the volume pedal control
function is disabled.
• The Copy operation cannot be used in the Edit mode.
• The Swap operation cannot be used in the Edit mode. Be careful here, though,
since this calls up the Write operation.
• Make sure that the Play mode is active.
• Make sure that you press both the
c
and
s
buttons simulta-
neously.
• Make sure that the Play mode is turned on.
There is too much noise in the
sound or the sound is unexpect-
edly distorted.
The external effect device doesn’t
work or affect the sound.
Even though the program is
changed, the Delay or Reverb
sound continues.
The Pedal Wah effect doesn’t
work.
The Volume pedal control doesn’t
work.
The Copy operation cannot be
used, even when the
c
button
is pressed.
The Swap operation cannot be
used, even when the
s
button is pressed.
The Metronome cannot be turned
on
The Tuning function cannot be
used.
PROBLEM
POSSIBLE CAUSE AND SOLUTION
• This indicates that an internal error has been found by the GW33. Contact
your dealer or local Yamaha service center as soon as possible.
When the power is turned on, an
“Er” message appears in the
BANK/MEMORY indicator.