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RX-208 Schematic ( PDF Datasheet ) - TOA ELECTRIC

Teilenummer RX-208
Beschreibung TOA MIXING CONSOLE
Hersteller TOA ELECTRIC
Logo TOA ELECTRIC Logo 




Gesamt 19 Seiten
RX-208 Datasheet, Funktion
Operating Instruction Manual
TOA MIXING CONSOLE
Model RX-208, RX-212, RX-216
RX-208
RX-212
RX-216
TOA ELECTRIC CO, LTD
KOBE, JAPAN






RX-208 Datasheet, Funktion
Meter Panel
RX-208, RX-212
Graphic Equalizer (EQUALIZATION)
Two channel, 1/1 octave graphic equalizer
with 9 bands (filters) enables 12dB of boost
and attenuation at each center frequency
with the "0" position of each filter providing
flat response. The graphic equalizer is
switchable to either the program or foldback
outputs, or "off for A-B comparison.
Program L Output Meter (PGM L)
The meter indicates the program L output
level.
Program R Output Meter (PGM R)
The meter indicates the program R output
level.
FB 1 Output Meter (FB 1)
The meter indicates the FB 1 output level.
FB 2 Output Meter (FB 2)
The meter indicates the FB 2 output level.
Graphic Equalizer Selector Switch
(PGML, FB 1, OFF)
The 3-position switch assigns the equalizer
to either the program L or FB 1 circuits, with
the "off" position completely removing the
equalizer from the signal flow path.
Graphic Equalizer Selector Switch
(PGM R, FB 2, OFF)
The 3-position switch assigns the equalizer
to either the program R or FB 2 circuits, with
the "off" position completely removing the
equalizer from the signal flow path.
Caution
The graphic equalizer is normally used for either the PGM or FB mix. For normal operation, only one
button should be pressed. If the equalizer is not being used, the "OFF" button should be depressed.
RX-216
*The RX-216 is the same in its meter panel functions as the
RX-208 and RX-212.
Graphic Equalizer (EQUALIZATION)
FB 2 Output Meter
FB 1 Output Meter
Program R Output Meter
Program L Output Meter
Graphic Equalizer Selector Switch
(PGM L, FB 1, off)
-5-
Graphic Equalizer Selector Switch
(PGM R, FB 2, off)

6 Page









RX-208 pdf, datenblatt
How to get a good mixing
Before connecting the equipment to the mixing console, check the impedance and level of
both. If the impedances and levels do not match, mixing will be very difficult and the S/N
ratio will also be adversely affected.
Each input channel of the RX-208, RX-212 and RX-216 is provided with a Trim control.
Thorough understanding of the function of a Trim control will make mixing easier.
TRIM
INPUT
HEAD AMP
OUTPUT
The function of the Trim control is that the negative
feedback volume of the head amp is changed so that the
gain of the head amp can also be changed. Because of this,
enough dynamic range even for the high level signals is
ensured. Also, S/N ratio will be better by decreasing the
gain of the head amp proper.
For example, a microphone (balanced) with an output level of —50dB, a tape deck (balanced)
with an output level of 0dB, and a wireless tuner with an output level of —20dB are connected
to the console.
Microphone in Tape Deck in Wireless tuner in
-50dB level
0dB level -20dB level
First the Trim control must be turned down so that the
peak indicator will not be lit if an excessive signal comes in.
Nevertheless, if it is still on, the input level switch must be
rotated to the left 1 step. This can be applied to the "BAL"
inputs only, not to the "UN-BAL" inputs.
The input selector switch is set as shown in the left figure.
Trim control is set as shown in the left figure. Also, if the
volume balance of each instrument (microphone) is kept by
the Trim control the position of each channel fader will be
uniform, thus mixing becomes easier.
The faders in each channel are used in general between 0
and 10. If the hall is full and there is not enough volume, the
master fader must be turned up.
- 12 -

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