10.6

Table Of Contents
1125Logic Pro User Guide
Note: Generally, you can turn on your computer either before or after you turn on
the control surface. Some devices, however, may require the computer to be turned
on before or after the device has initialized. Check the device documentation and
manufacturer website.
Connect a MIDI control surface
1. To use a MIDI control surface with Logic Pro, connect your MIDI control surface to a
MIDI interface, and connect the MIDI interface to your computer.
MIDI interfaces are typically connected to your computer via USB. MIDI uses separate
ports for input and output, and you must connect both the MIDI input and output to use
the device with Logic Pro. The diagram illustrates a typical setup using MIDI input and
output:
Important: You should not daisy-chain other MIDI devices via a MIDI through port to the
MIDI In or Out ports used by control surfaces. Daisy-chaining can result in errors and
other problems due to the amount of MIDI control data transmitted in real time.
The diagram illustrates a control surface MIDI connection.
2. Once connected, press the power switch on your control surface if applicable. Some
devices are automatically powered when connected and have no physical power switch.
When powered, its displays (such as an LCD, if your device has one) and/or LEDs are lit.
Some LCDs display a welcome message, which includes the firmware version number.
On most control surfaces with motorized faders, each fader slides to its top position,
then back to its bottom or center position. This self-diagnostic initialization procedure
indicates that your units are functioning correctly.
Note: Generally, you can turn on your computer either before or after you turn on
the control surface. Some devices, however, may require the computer to be turned
on before or after the device has initialized. Check the device documentation and
manufacturer website.