Auxa Master Fader; Auxa Module Back Panel; Aux; Auxb Master Module - Teac Tascam Series Instruction Manual

AUX A MASTER FADER
Final level contro! of all Aux A signals.
AUX A MODULE BACK PANEL
The-simplest method of describing these connections
is to consider them in their physical sequence, frorn top
to bottom.
AUX 3 OUT
A separate output without a master for the Aux 3
8x1 group. The output load impedance is 10 kohms.
The reference level is -10dB, 0.3 voit.
AUX A OUT
Final output of the Aux A. Buss: output load im-
pedance 10 kohms, Reference level -10 dB; 0.3 volt.
LINE OUT, 1-4
Final outputs for Buss Masters 1 through 4. Output
load impedance 10kohms, Reference level on these
jacks can be internally altered by a switch inside each
module, LOW = -10 dB, 0.3 volt
HI = -2.2dB, 0.775 volt
When the M-15 is assembled, the switch is set at the
Lo position.
3.4 AUX B MASTER MODULE (ECHO)
The primary use of this subsystem is as an echo
send. It is identical to the Aux A module in ail respects
except one. It has no echo receive capability. The knob
located in the "Echo RCV" position is a switch control-
ling the input module overload indicator sensitivity, as
described on Page 9. In the "Norm" position the input
overload sensitivity is +15dB. In the "MIX" position
the L.E.D.'s wil! flash when the signal reaches the lower
level of -5dB, providing visual indication of the presence
of signal on the input module, even if the fader is all the
way down.
AUX B MIX CONTROL
Same as Aux A Mix Control, but rightwards rotation
selects Aux 2 pots instead of Aux 1. Leftwards rotation
selects Aux 3 and Aux 4 push switches as signal sources,
Again, as in Aux A, either Mic or Playback can be
favored as a signal. quickly. When no echo is needed,
this system can be used as a second earphone mix for
musicians.
AUX 3 AND 4 PUSH SWITCHES
Both may be depressed at once, If neither switch is
down, rightwards rotation of the Aux Mix Pot will mute
the system. If number Aux 2 pot on the input-side is
open {passing signal), leftwards rotation of the Aux Mix
Pot will mute the system. Always check your sources of
signal.
AUX B MASTER
This fader controls the final level at the Aux B Out-
put Jacks.
CAUTION
Since the Aux 3 and 4 circuits may also select "Buss
Out" as a signal source, a circular assignment (feedback)
is possible on this system if the Echo Receive Section is
set to pass Echo Return to the Master Buss Outputs.
Before you begin, it is wise to make sure that you have
not inadvertently formed such a loop. Careful thought
and study of the Block Diagram will show several pos-
sible causes of trouble. One switch position may be
useful, but another impossible with any really complex
patch. The many exterior connections on the M-15 back
to the Aux Systems are useful and necessary, but not
completely fail safe as regards looping. If flexibility is
desired, the risks are unavoidable. Take care!.
AUX B MODULE BACK PANEL
Quitputs from top to bottom, as in Aux A,
AUX 4 OUT
A separate output without a master. for the Aux 4,
8x 1 group. The output load impedance is 10 kohms.
Reference level is -10 dB, 0.3 volt.