Boss JamStation JS-5 Owner's Manual page 85

* For Parts in which Insert Effects (p. 88) are used, Direct Level
adjusts the level of the sound after the Insert Effects are added.
In this case, the following appears in the screen.
fig.RE06-07
* If you press [START], you can making the settings while
listening to the performance.
* When "0" is selected for all levels, no sound is produced for the
selected Part.
6. Repeat Steps 4 and 5 as needed.
7. Once you have finished making the settings, press
[PART] once more, or press [EXIT].
The original screen reappears.
* If you wish to save the settings, execute the Save procedure
(p. 83).
Chapter 6 Adjusting the Balance Between Parts
85