Rane MPE 28 Operating And Service Manual - page 3
REAR PANEL DESCRIPTION
1. 3-Pin INPUT. Active balanced input: Pin 2 is (+), pin 3 is (–), pin 1 is signal ground, and the shell is chassis ground. For
unbalanced use, connect pins 3 and 1 together and drive pin 2.
2. ¼" INPUT. This is a tip-ring-sleeve (TRS) balanced input connector. Tip is (+), ring is (–), and sleeve is ground. For
unbalanced operation, use either a TS or TRS plug. If using a TRS plug, connect the ring & sleeve together.
3. 3-Pin OUTPUT. Active balanced output: Pin 2 is (+), pin 3 is (–), pin 1 is signal ground, and the shell is chassis ground.
4. ¼" OUTPUT. This is a tip-ring-sleeve (TRS) balanced output connector. Tip is (+), ring is (–), and sleeve is ground. For
unbalanced operation, use a TRS plug: connect your hot lead to the tip, ground to the sleeve and leave the ring open.
5. MIDI IN. This connector allows the MPE 28 to respond to external MIDI control.
6. MIDI OUT. This connector transmits MIDI Program Changes, etc., to the input of another MIDI device.
7. MIDI THRU. This output contains all the MIDI information exactly as it comes into the MIDI input. None of the controls
on the MPE 28 have any effect on this output. Normally used for daisychaining purposes.
8. Remote Power Supply Input. USE ONLY A RANE MODEL RS 1, RAP 10, FRS 8 OR OTHER REMOTE AC POWER
SUPPLY APPROVED BY RANE. The MPE 28 is supplied with a remote power supply suitable for connection to this input
jack. Consult the factory for replacement or substitution.
9. GROUND LIFT Switch. This switch gives the user the option to tie signal ground to chassis ground. Typically, a system is
quieter in the LIFT position. See CHASSIS GROUNDING note on last page for details.
10. Chassis Ground Point. A 6-32 screw is used for chassis grounding purposes. See CHASSIS GROUNDING note on last
page for details.
OPERATING INSTRUCTIONS
THE BASICS. Don’t be intimidated by the fact that the
MPE 28 is a programmable equalizer with a lot of buttons on
the front and none of the familiar slide controls and rotary
pots and such. The product is very straightforward and
following the steps below should get you started.
EDITING CURVES. Changing the overall Level or
equalizer curve requires the use of the EQ Edit mode. To edit
any curve, push the EQ button (repeated operation cycles
between the lower-half of the available frequencies, the
upper-half, and Off. Now press LEVEL or any of the 14
frequency buttons (the yellow LED lights to acknowledge
selection). Next scroll the UP/DOWN buttons until the
desired Level shows on the green EQUALIZER display.
When finished editing, push the STORE button once. The
number in the SYSTEM display starts blinking to remind you
to select a location, or to use the current one. Enter a new
number if needed, then push STORE again to place the new
curve into the Stored Memory location shown. The MPE
Users Guide should be consulted for further details.
STORING CURVES. Any curve may be stored in any or
all of the 128 memory locations. Once stored, this location is
referred to as the Stored Memory location. To begin the
process, press STORE once. This causes the SYSTEM
display to begin blinking the current Stored Memory location
number. If you want to store your Working Memory curve
into this location, press STORE again and your wish shall be
granted. If not, select another Stored Memory location using
the number keys or the UP/DOWN buttons. When the correct
location is displayed, press STORE again. The curve in the
selected location has now been replaced with the curve of the
current Working Memory.
COMPARING CURVES. A most useful feature is the
ability to compare the changes you have just made with what
is in the Stored Memory location. The MPE 28 makes this
easy by using the MEMORY button when in the EQ Edit
mode. All changes to the Working Memory are compared
with the Stored Memory by pressing and holding the
MEMORY button. The letterC
C appears on the EQUALIZER