Altec-lansing 3300A Manual do Utilizador descarregar pdf (Página 10)

Operating Instructions for the Altec Lansing 3300A Series Mixing Consoles

Figure 8. Rear panel switches.

the left and right su/jointfilesconvert/1697082/bgroup

outputs. Since the 3300A series

are true su/jointfilesconvert/1697082/bgroup mixers, all

signals that appear in the main

mix must come through the

su/jointfilesconvert/1697082/bgroup channels.

4. MONITOR Output: The

MONITOR output signal is the

sum of all the input cheuinel

monitor sends and the external

monitor input signal.

5. AUX SEND (AVX 1 and

AVX2): The AUX SEND out

put signal is the sum of all of

the input channel AUX sends

(PRE or POST fader) plus any

signal coming through the AUX

IN input.

6. TAPE RECORD: These

output signals are the sum of all

the input channels and effects

with their position in the L R

stereo mix. The TAPE RECORD

output is via RCA-jacks fixed at

-10 dBV for easy interfacing and

compatibility with semi-pro and

hi-fi tape decks.

4.5 Rear Panel Switches

(Refer to Figure 8.)

1. PHANTOM POWER Switch:

lliis switch turns the phantom

power supply on and off. The

phantom power supply provides

power for condenser-type micro

phones through the microphone

cable. When switched on, it

provides 48 volts dc at pins 2

and 3 on all of the microphone

input connectors. Pin 1 (the

shield conductor) provides the

ground return path. This will

power standard condenser

microphones. When switched on

or off, the voltage will slowly

ramp up or down; it teikes a few

seconds to reach full level. This

prevents unwanted transients

from reaching the microphone

inputs. When the switch is en

gaged, a red LED will light on

the meter bridge to confirm its

operation.

2. VOLTAGE SELECT Switch:

The 3300A series are capable of

operation at 115 or 230 Vac, 50

or 60 Hz. To seifely accomplish

a voltage change, follow tliese

steps:

1. Turn the mixer off and

completely disconr.f;;- the

ac power cord.

2. If the unit is used for 115

Vac (100—120 Vac) opera

tion, be sure a 0.4 amp Slo-

Blo* 3AG fuse is installed

in the fuse holder on the

connector panel. If the unit

is used for 230 Vac (220—

240 Vac) operation, be sure

a 0.25 amp Slo-Blo*

ALTEC LANSING^ CORPORATION • a Mark IV Company

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