Kenton LD3PRO - Manual (Page 2)

2
INTRODUCTION
Congratulations on your purchase of the LD-3 (& LD-2) level display units. The LD-3 & LD-
2 are very easy to use, but please take a few moments to read through the manual to avoid
any operational difficulties.
CONNECTIONS LD-3
MIDI In
Plug your MIDI synth, controller or sequencer into here..
MIDI Out1 & MIDI out2
These provide a copy of the data received by the MIDI In socket merged with the data generated by
the LD-3 itself.
Pedal Input
Plug your analogue controller pedal into here. This input is a ¼” stereo jack (TRS) where the sleeve is
ground. You can plug FC-7 (Yamaha) type or EV-5 (Roland) type or switch pedals of either polarity into
here. If you are using the LD-3 between your pedal and your synth, please see loopback below.
The LD-3 can also be used to generate MIDI from an analogue controller pedal without having to be
connected to a synth. In this case, nothing should be connected to the loopback socket. If you are
working in this mode, select the voltage select parameter “Ult” (volt) and select “INT” as a data value.
Loopback to Synth
If you are using the LD-3 between your pedal and your synth, connect a stereo (TRS) jumper cable
from here to the input on your synth where you would have plugged your analogue controller pedal.
The pedal and synth jacks are connected in parallel. If you are working in this mode, select the voltage
select parameter “Ult” (volt) and select “EXT” as a data value. Note that the pedal and synth sockets
will not load down the circuit to the synth. The load imposed by the LD-3 is around 1 megohm, even
with the unit unpowered.
MIDI & Power to LD-2
Plug the 5 pin Din cable from the LD-2 into here. This will supply power and data to the LD-2.
Because this socket supplies power to the LD-2, it should not normally be connected to any other MIDI
device, or should be used with caution. The pins used for the power connection are not normally used
by MIDI devices, but some units do use these pins for remote power themselves. Obviously the LD-3
should not be connected to one of these devices. Note that the power connection is current limited.
DC IN 9V
This requires a 2.1mm centre positive plug from a 9 volt unregulated plug top type power supply.
Power requirements are around 30mA for the LD-3 alone and up to 100mA if powering the LD-2
CONNECTIONS LD-2
MIDI In
Plug the cable from the “MIDI & Power to LD-2” output of the LD-3 into here. Use a 5 pin Din cable with
all pins wired (some MIDI cables don’t have all pins wired as MIDI doesn’t normally use all of them).