Yamaha PSR-A2000 Owner's Manual page 171

Editing and Saving the effect
1
Press the [F] button to call up the display for editing the effect parameters.
2
If you have selected one of the DSP2–4 effect blocks in "Selecting an Effect type,"
step 2:
You can edit its standard parameters as well as its variation parameter.
To select the standard type of parameters, press the [B] button. To select its variation parameter, press the
[E] button.
NOTE "Variation parameter" is the one which can be turned on/off by pressing the [VARIATION] button on the panel.
2
3
Select one of the parameters you want to edit by using the [4 ▲▼]/[5 ▲▼] buttons,
then adjust the value by using the [6 ▲▼]/[7 ▲▼] buttons.
If you have selected the REVERB, CHORUS or DSP1 effect block in step 2, you can adjust the Effect
Return Level by pressing [8 ▲▼] button.
To re-select the Effect block, category and type, use the [1 ▲▼]–[3 ▲▼] buttons. The re-selected effect
configuration is displayed at the upper left side box in the display.
Keep in mind that in some cases noise may result if you adjust the effect parameters while playing the instrument.
NOTE
3
4
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