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Program Output Connector (PGM OUT).

The  Program  Output  Connector  is  bal-
anced  and  transformer  isolated.  The
nominal  signal  level  and  impedance  are

+4dB and 600  ohms,  respectively.

Line  Output Connector (LINE OUT)

The  Line  Output  Connector  is  balanced
and  transformer  isolated.  The  nominal
signal level and impedance are  +4dB and
600 ohms, respectively. The output signal
is derived prior to the equalizer section.

Input  Channel Connector(s) (INPUT)

The  XLR  connectors  are  balanced,

transformer  isolated,  and  accept  either

low  or  high  impedance  sources,  depend-
ing  on  the  position  of  the  MIC/LINE
selector  switch  on  the  front  panel,  the
nominal signal level and impedance in the
MIC position are  -64dBm and 1.5k ohms,
respectively.  In  the  LINE  position,  the
nominal  signal  level  and  impedance  are

-24dBm and  l1k ohms,  respectively.

AC Power Cord

Cord Hanger

-AUX Input Jack

 (AUX IN)

This  jack  is  unbalanced  and  accepts  low

or  high  impedance  sources  at  nominal

-20dB level. The AUX input will accept

feeds  from  a  tape  player,  wireless  tuner
or other high level devices.

AC Fuse (1A)

The fuse should be replaced only with
one  of identical value and type.

Recording Output Jack (REC OUT)

This  is  a  high  level,  high  impedance
(nominal  10k  ohms)  unbalanced  output

jack (nominal level  -l0dB). This signal is
pre  equalizer  and  suitable  for  feeding  a

tape recorder or other high level devices,

devices.

– 4  –

Rear Panel

All manuals and user guides at all-guides.com

Summary of Contents for RX-31C

Page 1: ...Operating Instruction Manual TOA ELECTRIC CO LTD KOBE JAPAN ModelRX 31C TOA MIXING CONSOLE All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...Pin 2 is cold low minus Pin 3 is hot high plus 2 Descriptions of components and functions Various mixing console descriptions are used depending on individual manufacturer s standards In our Operating and Instruction Manual explana tion of components and functions is made according to our usage for them 3 Phantom Power Supply TheRX 31Cincorporatesa48VDCPhantomPowercircuit Ifphantompower is require...

Page 3: ...12 sections calibrated in 3dB steps responds instant ly to the program output level Also featured is a 5 band peaking equalizer with rotary controls plus switchable high pass low pass filters for reducing wind and scratch noise A headphone output enables the operator to audition each input channel AUX input program output or line output depending on the position of the phones selector switch With ...

Page 4: ...er IN OUT Switch The equalizer IN OUT switch puts the mixed signal either in or out of the equalizer The OUT position provides flat response LEDACPowerIndicator The green LED illuminates when the power switch is on Headphone Jack Headphones mono or stereo with mini mum 8 ohm load impedance may be plugged into this jack for mono audition Input Channel ON OFF Switch CHANNEL The slide switches provid...

Page 5: ...ront panel the nominal signal level and impedance in the MIC position are 64dBm and 1 5k ohms respectively In the LINE position the nominal signal level and impedance are 24dBm and l1k ohms respectively AC Power Cord Cord Hanger AUX Input Jack AUX IN This jack is unbalanced and accepts low or high impedance sources at nominal 20dB level The AUX input will accept feeds from a tape player wireless t...

Page 6: ...The rear panel and blank panel should now be changed in position to easily accept equipment connections on the RX 31C in the rack 4 Reverse the positions of the rear panel and blank panel as shown below Front Panel Front Panel Rear Panel Corner Frame Blank Panel Corner Frame Power Chassis Blank Panel Power Chassis Rear Panel a Remove the rear panel corner frame and blank panel b Put the rear panel...

Page 7: ... SENSITIVITY AT MAX GAIN 84dBm 0 049mV 54dBm 1 55mV 44dBm 4 9mV 14dBm 155mV 40dBm 7 75mV INPUT LEVEL NOMINAL 64dBm 0 49mV 34dBm 15 5mV 24dBm 49mV 6dBm 1 55V 20dBm 77 5mV MAX BEFORE CLIP 35dBm 13 8mV 5dBm 436mV 5dBm 1 38V 35dBm 43 6V 9dBm 2 18V CONNECTOR XLRTYPE XLR 3 31 PHONE JACK Sensitivity is the level required to produce a program out level of 4dBm 0dBm is referenced to 0 775V RMS All XLR type...

Page 8: ...mpedance of the in puts changes to 1lk ohms so that associated equipment with an out put impedance of less than 1lk ohms should be connected to the inputs The inputs are balanced transformer isolated no matter what the position of the MIC LINE selector switch CASSETTE TAPE DECK for recording TAPE DECK PLAYBACK DECK STAGE MONITOR WITH A BUILT IN POWER AMPLIFIER POWER AMPLIFIER A 906 7 Connection Ex...

Page 9: ...RX 31C BLOCK DIAGRAM LEVEL DIAGRAM 8 Block and Level Diagrams All manuals and user guides at all guides com ...

Page 10: ...ect the AC ground as microphones and other equipment connected to the mixing console are often touched directly by hand This may cause an electric shock in the case of electricity leakage if any other connected equipment is touched Therefore the chassis ground line should be disconnected Whether or not to disconnect the chassis ground line of other equipment depends on various conditions Therefore...

Page 11: ...denser microphone a dynamic microphone and a playback deck with output levels of 55dBm 50dBm and 4dBm respectively are con nected to the mixing console Condenser Microphone in 55dBm level Dynamic Microphone in 50dBm level Playback Deck in 4dBm level The Phantom Power Switches MIC LINE Selector switches TRIM Controls and Channel ON OFF switches are set as shown in figure at left The TRIM controls s...

Page 12: ...H inch 457 W X 397 5 D X 158 H mm INPUT SPECIFICATIONS CONNEC TION INPUT 1 8 AUX INPUT SELECTOR MIC LINE ACTUAL LOAD IMPEDANCE FORUSEWITH NOMINAL 50 TO MICROPHONES OR LINES OR LOWER IMP LINES OR LOWER IMP LINES TRIM POSITION 0 30 0 30 SENSITIVITY AT MAX GAIN 84dBm 0 049mV 54dBm 1 55mV 44dBm 4 9mV 14dBm 155mV 40dBm 7 75mV INPUT LEVEL NOMINAL 64dBm 0 49mV 34dBm 15 5mV 24dBm 49mV 6dBm 1 55V 20dBm 77 ...

Page 13: ...FREQUENCY RESPONSE HPF LPF CHARACTERISTICS OUTPUT EQ CHARACTERISTIC Dimensions with a bracket 12 Characteristic Diagrams Appearance All manuals and user guides at all guides com ...

Page 14: ...TOAELECTRICCO LTD KOBE JAPAN Printed in Japan 133 02 489 All manuals and user guides at all guides com ...

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