T
ROUBLESHOOTING
I connected my DAW to the RH301 via MIDI but the pedal doesn't seem to start.
Firstly, make sure that you set the master clock sync source to EXT and there is no cable in the EXT.
CLOCK input on the patch bay. Please make sure that your DAW is sending the correct MIDI signals. The
RH301 expects a MIDI clock signal, not a MIDI time code. Furthermore, your DAW should send a start
signal whenever you hit play. Sometimes it can happen that programs only send a start signal in the beginning
of a song, not every time when you hit Play – for example in Ableton Live you should try to set “MIDI Clock
Type” to “Pattern”.
Your RH301 also won't start to sync to MIDI when there is a cable plugged into the EXT. CLOCK jack on
the patchbay – even if no clock signal is present at that input.
Also, check your MIDI cables. A large percentage of problems with MIDI sync are arising from cheap or
broken MIDI cables. If you have the opportunity, try different MIDI cables.
My LFO will randomly reset while syncing to external clock signals.
Please check your MIDI/DIN Sync/analog clock connections. Many problems arise from cheap or broken
cables. Also be sure that you don't accidentally modulate your LFO rate via a CV signal attached to LFO
SPEED and keep in mind that if you do so, the LFO needs one bar to adjust to the new tempo.
Some of my equipment is starting to hum when I attach a MIDI cable.
This can happen in some setups, mostly involving USB MIDI interfaces or other equipment with a USB
MIDI connection (sound cards, hardware MIDI controllers, etc.). Try to prevent ground loops and check
your MIDI connections – did we already mention that a lot of problems come from cheap or broken MIDI
cables?
When I connect my drum machine to the DIN OUT of the RH301 it starts and stops
randomly.
Please check the DIN cable that you use. Like with MIDI, most of the problems stem from defective or
wrong DIN cables. Make sure that all the pins on the cable are connected from one end to the other. With
some cheap MIDI cables it can happen that only the pins used for MIDI are actually connected through the
cable. MIDI and DIN use the same cable and plug but not the same pins on that cable.
I patch my sensor the the CV inputs and it doesn't seem to change anything.
Make sure you use the correct PSU (9V, 500mA, center polarity negative) for the sensor to work correctly.
Have a look at the back of the pedal and check if your CV attenuators are in the right setting. Furthermore
keep in mind that the incoming CV signal is added to the corresponding knob on the frontpanel (LFO RATE
and LFO SYMMETRY) and you won't hear your changes if they are set too high.
I set my RH301 to FREE mode / EXT. mode and sync to an external clock signal but
my DAW/synthesizer/drum machine doesn't start playing.
The RH301 converts incoming start / stop signals from MIDI to DIN Sync. If, however, you miss those
start/stop signals or none are sent you have to create them yourself by pressing the large black pushbutton.
When you are in FREE mode you always have to press that pushbutton yourself, if you are syncing to an
analog clock input you also have to create your own start / stop signal.
KOMA Elektronik RH301 – Rhythm Workstation / Utility Tool
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