CM100B
Revision 1.01
AP099
Back Panel
Connections
The Back panel houses the DC power input, a MIDI output/through socket, USB connection to
allow MIDI over USB, DIP switches to allow the MIDI channel to be configured, Audio out
and the power on/off switch.
Bear in mind that when the Pro-1 is switched off, the mains adaptor is still on and consuming
power (albeit small). If not using the Pro-1 for extended periods of time, switch off or unplug
at the mains supply. This will stop power wastage and also extend the life of the power
supply.
In Case Of Difficulty
To check that the Pro-1 is receiving power check the power light by the Master volume knob
is on, then switch DRONE on. The GATE LED should light. If it doesn't, either power is not
reaching the unit or the internal fuse has blown. First check the power source by plugging in
other equipment. Examine the Pro-1's power adapter for damage.
If the GATE LED lights but no sound can be obtained, check the front panel controls--
including VOLUME--carefully against a factory patch in the Factory Patch section in this
guide.
If still no sound can be heard, try substituting the audio output cable with one known to be
good.
Check your amplifier by trying a high-level audio input such as another synthesiser or an
audio interface.
Check headphones by trying them with a standard headphone output from a stereo amplifier.
If the SEQUENCER won't record, check that you didn't leave ARPEGGIATE on.
If you are having trouble recording or playing sequences or arpeggiating, it may help to
reset the internal microcomputer by switching power off then back on after a moment. Note
this will erase any sequences which you have recorded.
If hum is noticeable or excessive from the audio output, first check that the correct mains
adapter is in use, then check output leads. A cable checker such as Behringer’s CT200 cable
tester maybe useful, and can be purchased via this link : https://amzn.to/3Die3Yp
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