Use Of The Crossfader; Auxiliar Send; Aux Input; Inserts - Ecler MAC90i Manual De Instrucciones

4.4. Use of the CROSSFADER

The MAC90i provides a short travel sliding potentiometer placed horizontally. This
potentiometer is called CROSSFADER (41) and enables a direct mixing of the signals from any of
the input channels, except for the auxiliar. This allows the disc-jockey to prepare the mixes in the
turntables and switch/mix from one to the other by simply moving the CROSSFADER.
Two switchers per channel, just below the PFL button allow you to assign the crossfader to
any of the inputs, channel A , XFA (9) or B, XFB (11). A visual display helps you identify the
channels assigned to crossfader and their position, A or B. If no crossfader position is assigned the
signal goes straight to the main mixing bus. These switchers also have another function: they assign
the channels that affecct the talkover (See 4.8.).
If, instead of using the crossfader, you would like to have two auxiliary mixing channels at
the XFA and XFB outputs, the cossfader potentiometer can be substituted for a blind module Ref.
BC01. This way, two more submixes can be made, apart from the main mix, or two more auxiliary
outputs can be available.
The MAC90i's CROSSFADER has the great advantage of being removable and replaced
on-the-field from the outside. In order to replace it, just follow these instructions:
1- Remove the screws of the plate that hold the CROSSFADER.
2- Remove the set from the mixer.
3- Detach the multipin connector.
4- Replace the whole set or remove the screws that tie the potentiometer.
5- Tie the new potentiometer and the associated printed circuit and multipin
connector to the plate.
6- Attach the multipin connector.
7- Place the set on the mixer.
8- Fix the screws of the plate.
4.5. Auxiliary send
The MAC90i is equipped with a stereo bus of auxiliary sends, AUX (6). This send is factory
preadjusted to postfader, this is, any change on the channel fader (13) affects the level present at
the output of the auxiliary bus AUX OUT (47). This setting can be internally modified and converted
to prefader by simply changing a jumper, as seen in diagram 7.1.

4.6. AUX input

An AUX IN (50) allows the return of the signal once it has been processed by an external
effect. This input can also be used as a regular line level input. The bus to which it is assigned can
be configured with internal jumpers (see diagram 7.2.). It is factory preadjusted to PGM bus.

4.7. Inserts

Plugging a 6,35 mm stereo jack to the INS connector (there is a connector for each of the
L left and R right channels (57 and 56)), the microphone signal can be redirected to a particular
effect for that input only. Sleeve is ground, tip is send and ring is return. If you use a mono jack,
instead of a stereo one, with the ring short circuited to ground there are two new applications:
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