Manual-
q
TAPE OUT jacks:
One pair of RCA jacks provides pre-EQ, pre-LOOP Program Outputs. The other pair supplies pre-EQ, post-
LOOP Program Outputs. The microphone signals are not available at these Outputs, however they are selectable using an internal
jumper block. (See Service Information on page Manual-9.)
w
SWITCHABLE LOOP SEND jacks:
Use these ¼" unbalanced Left and Right Outputs for driving the inputs of a processor
activated by the LOOP button (front panel
e
).
e
SWITCHABLE LOOP RETURN jacks:
Use these ¼" unbalanced Inputs for receiving the outputs of the above processor.
r
MAIN EFFECTS LOOP SEND jacks:
Provide drive to the inputs of a signal processor which is not to be switched from the front
of the mixer. Connecting only to the LEFT Effects Send provides a mono Output; connecting to both LEFT and RIGHT pro-
vides a stereo feed. These are ¼" TS (Tip-Sleeve) unbalanced connections.
t
MAIN EFFECTS LOOP RETURN jacks:
Receiving the processed signal generated from the Main Effects Loop SENDs. These
are ¼" TS unbalanced connections.
y
Balanced MAIN MIC Input jack:
Connects a balanced microphone of any impedance, either dynamic or condenser.
u
Unbalanced high-impedance AUX MIC Input jack:
Connects an unbalanced wireless or other high-impedance mic.
i
MIC LOOP jack
: Inserts external signal processing in the microphone circuit only. This is a ¼" TRS tip-send, ring-return con-
figuration. This feature does not affect the operation of the Main Program channels.
o
PHANTOM POWER switch:
Engaging this pushbutton a15 V Phantom Power to the balanced (XLR) MAIN MIC
Input only. It has no effect on the Aux Mic Input. The adjacent red LED illuminates whenever Phantom Power is active.
p
BOOTH DUCKER switch:
When in the ACTIVE position, the ENGAGE MIC switch (front panel
9
) reduces the Micro-
phone level at the Booth Outputs. When in the DEFEAT position, Microphone level is not reduced.
a
AUX/PHONO input jacks:
Use these stereo Phono Input pairs for connecting any moving-magnet type cartridges to the mixer.
Internal jumpers are provided to convert these into Line level Inputs (See Service Information on page Manual-9). AUX/PH 1 and
AUX/PH 2 jumpers are set at the factory for PHONO. The PH/AUX 3 jumper is set at the factory for a LINE level input. When
these jumpers are set to PHONO, never use these Inputs for any other purpose due to the amount of gain and RIAA equalization
present. Any unused Phono Input should have the Phono Shorting Plug installed to prevent interference from an outside source. Do not
put any of the Phono Shorting Plugs into the Tape Out jacks, as this will short all the Outputs.
s
PHONO/AUX 3 input jacks:
As in
a
above. Note this Input is shipped with the internal jumpers in the LINE position.
d
LINE 1 & 3 through 6 Input jacks:
Are suitable for all line-level devices such as the audio outputs of DVD players, CD players,
iPods, radio tuners, drum boxes, keyboards, etc. These RCA connectors pairs are unbalanced, line-level Inputs only.
f
LINE 2 Input jacks:
Are a fully balanced, ¼" TRS (Tip-Ring-Sleeve) line Input. The tip of the jack is (+), the ring is (–) and the
sleeve is ground.
g
GROUNDING POST terminal:
Provided to facilitate your hum chasing, buzz eliminating experiments. Its purpose is to provide
a place to connect those extra wires coming out of the turntables.
h
Chassis ground point:
Since the MP 24z does not get chassis ground through the AC cord, this point is provided in case your
system does not have another earth ground such as the rack rails. A #6-32 screw and toothed washer is provided for chassis
ground. See Chassis Grounding on page Manual-8 for details.
j
GROUND LIFT SWITCH.
Separates chassis ground from signal ground. Normally, this switch should be in the LIFT position.
In some circumstances, moving it to the opposite position eliminates stubborn hum and buzz problems. If you are tempted to
move this switch with your power amplifiers turned on and cranked up, don’t. Always turn your system levels down before changing
your grounds around and then bring them up slowly.
k
POWER input connector:
No, this is not where Commissioner Gordon plugs in his Bat-phone, in fact it is not a telephone jack at
all. The MP 24z uses an 18 volt AC center-tapped transformer. Use only a model RS 1 remote AC power supply approved by Rane.