4
TRASH Explained.
The CP909 is based around a quasi-random logic-based noise generator and the
TRASH knob controls the speed of this generator. When set at the max position
(fully CW), pointing at the 909 dot, the generator is set at the original speed of the
TR-909 and the typical clap sound can be heard. The TRASH knob gives you the
option to lower this clock down, “trashing” the noise source which adds greatly to
the spectrum of sounds that can be generated with this circuit.
Please note that as the clock speed is decreased, the volume increases; this is due
to the nature of a logic-based noise generator, where the average of pulses is the
source of which the noise sound is made from.
Trimmer Setting Explained.
The trimmer located at the center-right of the PCB is used to balance between
the clap sound and the clap reverb sound. The CP909 is shipped with this trimmer
set according to the procedure found in the original TR-909 service manuals.
However, if you wish to experiment with this, please use a small flat head
screwdriver and gently rotate the trimmer while listening to the changes in the tone.
Tips & Tricks:.
Creative Gate Sequencing with the Z8000:
Please see BD808 User manual for in depth information.
Step Sequencing the traditional way:
Please see BD808 User manual for in depth information.
