Mackie LM-3204 Owner's Manual download pdf (Page 32)

32

TRS Send/Receive Insert Jacks

The insert jacks on both the LM-3204 input

channels 1-4 and on the left and right main

buses are the three-conductor, TRS type

1

⁄

4

"

phone. They are unbalanced, but have both the

mixer output (send) and the mixer input (re-

turn) signals in one connector (See Figure B).

The sleeve is the common ground (earth)

for both signals. The send from the mixer to

the external unit is carried on the tip, and the

return from the unit to the mixer is on the ring.

Using the Send Only on an Insert Jack

If you insert a TS (mono) 1/4" plug only

partially (to the first click) into an LM-3204

insert jack, the plug will not activate the jack

switch and will not open the insert loop in the

circuit (thereby allowing the channel signal to

continue on its merry way through the mixer).

This allows you to tap out the channel or

bus signal at that point in the circuit without

interrupting normal operation.

If you push the

1

⁄

4

" TS plug in to the second

click, you will open the jack switch and create

a direct out, which does interrupt the signal in

that channel. See Figure F.

Note: Do not overload or

short-circuit the signal you

are tapping from the mixer.

That will affect the internal

signal in the LM-3204.

MACKIE STEREO INPUTS AND RETURNS:

Mono, Stereo, Whatever

The LM-3204 stereo line inputs, stereo AUX

sends and stereo AUX returns are a fine example

of the Mackie philosophy (which we just made

up) of Maximum Flexibility with Minimum

Headache. The inputs and returns will auto-

matically be mono or stereo, depending upon

how you use the jacks. Here’s how it works:

A mono signal should be patched into

the input or return jack labeled Left

(MONO). The signal will be routed to both

the left and right sides of the return cir-

cuit, and will show up in the center of the

stereo pair of buses it’s assigned to, or can

be “panned” with the Balance control.

A stereo signal, having

two plugs, should be patched

into the Left (MONO) and

the RIGHT input or return

jacks. A jack switch in the

RIGHT jack will disable the mono function,

and the signals will show up in stereo.

A mono signal connected to the RIGHT jack

will show up in the right bus only. You probably

will only want to use this sophisticated effect

for special occasions (weddings, bar mitzvahs,

Rush Limbaugh’s birthday party, etc.)

MULTS AND “Y”s

A mult or “Y” connector allows you to

route one output to two or more inputs by

simply providing parallel wiring connections.

You can make “Y”s and mults for the outputs

of both unbalanced and balanced circuits.

Remember: Only mult

or “Y” an output into sev-

eral inputs. If you need to

combine several outputs

into one input, you must

use a mixer, not a mult or a “Y.”

Direct out with no signal interruption to master.

Insert only to first click

Direct out with signal interruption to master.

Insert all the way in to the "second click"

For use as an effects loop.

(TIP = send to effect, RING = return from effects)

MONO PLUG

MONO PLUG

STEREO

PLUG

TIP

RING

tip

this plug connects to the CR-1604

"ring"

tip

ring

shield

SEND

RETURN

Figure E

Figure F

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Comments to this Manuals

No comments