Expression 3 - ETC

MIDI Out/Thru jumper setting
You may set the MIDI Out connector as a MIDI Thru port. Follow these
steps to do so:
1. Locate the jumper at location J5 on the face panel circuit board in the
lid of the console. With the lid in an upright position, the jumper should
be near the lower right corner of the circuit board.
2. The jumper at location J5 should be installed on the pair of pins
labeled 1A for MIDI Out to be active. To use the MIDI Out connector
as a MIDI Thru connector, move the jumper to the pins labeled 2.
On older consoles (with keyswitch power switches), the jumper locations
are slightly different. With older consoles, proceed as follows.
1. Locate the jumper at location J20 on the face panel circuit board in the
lid of the console. With the lid in an upright position, the jumper should
be near the lower right corner of the circuit board, just below the level
wheel.
2. The jumper at location J20 should be installed on the pair of pins
labeled 1 for MIDI Out to be active. To use the MIDI Out connector
as a MIDI Thru connector, move the jumper to the pins labeled 2.
3. Close the console and test for proper operation.
Expression 3 User Manual, v.3.1 343