Roland TR-909 - TR-909 Pattern Management and Changes; Reloading Factory Rhythm Patterns; ROM Revisions and Hardware Updates; TR-909 Fault Isolation Guide

E Controls in the Sound Section
e Level knob
This is provided for every sound source
and controls each volume. Rotating this
clockwise (C2) will increase the volume.
[BASS DRUM]
e@ Attack
This is to contro! the attack sound.
Rotating this knob clockwise (Q) in-
creases it.
е Decay
This adjusts the decay time. If you wish
to mute the kick drum sound, rotate
this knob counterclockwise (©).
eTune
This is to control the pitch. Whatever
the position this knob is set, the Decay
knob works at its set time.
[SNARE DRUM]
eTone
This is to change timber of the sound.
As you rotate this knob, the sound will
become brighter.
eTune
This is to contro! the pitch of the Snare
Drum sound.
eSnappy
This corresponds to the snappiness of
the Snare Drum. At its fully counter-
clockwise ( © ) position, Snare Drum
sound with snappy removed will be ob-
tained.
[LOW TOM/MID TOM/HI TOM]
eTune
Rotating the knob clockwise (Q) in-
creases the pitch. Controling the pitch
of these three Tom sounds, you can use
them as Melody Tom.
eDecay
This adjusts the decay time. || you wish
to mute the Tom sound, rotate this
knob counterclockwise (O).
[HI-HAT]
ө Decay
This knob controls the Decay time of
Hi-hat sound. If you wish to mute the
Hi-hat sound, rotate this knob counter-
clockwise (O).
[CRASH/RIDE]
eTone
This is to adjust the pitch of the Cymbal
sound.