Shure SR101 Series Service Manual download pdf (Page 4)

nector (9) is wired in parallel, and provides connection

for additional (tandem) SRllOs.

With the OUTPUT SELECTOR Switch (5) in the

MIXED INPUTS position, the input signals from the

individual channels of the

SR101 or SR109 go through

the individual channel Volume Controls

(I), a -1 dB

mixing amplifier, a -2 dB mixing resistor, and the

OUTPUT SELECTOR Switch before reaching the MAS-

TER Volume Control

(3).

With the OUTPUT SELECTOR

Switch in the PROGRAM INPUT position, the program

input signal from the

SR101 or SR109 goes directly

through the OUTPUT SELECTOR Switch to the MAS-

TER Volume Control. The MIX BUS Jack (10) is con-

nected after the mixing resistor and before the OUT-

PUT SELECTOR Switch. The MIX BUS Jack is for

parallel operation of two or more

SR101 or SR1091

SRIIO

combinations, providing 16 inputs with the OUT-

PUT SELECTOR Switch in the MIXED INPUTS position.

From the MASTER Volume Control

(3),

the signal

enters a +42 dB amplifier stage. The amplifier output

is fed to both line level (-1 dB) and headphone

(-24 dB) output transformers. The line level trans-

former feeds a three-pin professional male audio con-

nector

(7)

and two standard

1/4"

three-circuit (stereo)

phone jacks (6). The headphone transformer feeds a

standard

in. three-circuit (stereo) phone jack (4)

designed for use with 8 ohm stereo or monophonic

headphones.

Inputs and Outputs

All

SR110 inputs enter through the ACCESSORY IN-

PUT AND OUTPUT 11-pin male connector (8). Pins 1

through 8 are the individual channel signals derived

from the eight

SR101 or SR109 channels (following the

equalizer circuits), pin 9 is a total program signal

(taken from the

SRlOl Monitor post link-pre link Switch

SR109 link input jack), pin 10 is the SR101 or SR109

+30 Vdc supply voltage and is not internally con-

nected to the

SR110 supply, and pin 11 is ground.

The ACCESSORY INPUT AND OUTPUT 11-pin fe-

male connector (9) is wired in parallel with the male

connector, and provides for connection of additional

(tandem)

SRll 0s.

The MONITOR OUTPUTSILINE LEVEL connectors

consists of one three-pin professional male audio con-

nector

(7)

and two standard

in. three-circuit (stereo)

phone jacks (6). These connectors provide three line

level, 600-ohm, balanced outputs to power amplifiers

or recording equipment.

The MIX BUS Phono Jack (10) provides a common

connection when two SRlOls or

SRIO9s and two or

more SRllOs are to be operated in a common mix

mode (16 channels). If more than two SRllOs are used

"Y" adapters can be used to connect the additional

MIX BUS Jacks.

The PHONES Jack

(4)

standard

1/4

in. three-

circuit (stereo) phone jack designed for use with

8-ohm stereo or monophonic headphones.

Stage Monitor

To use the

SR110 as a stage monitor mixer (in con-

junction with the

SR101

or SR109), connect the AC-

CESSORY INPUT AND OUTPUT male connector (8) to

the

SRlO1 or SR109 ACCESSORY OUTPUTIAUX LEVEL

female connector (see Figure

E).

Turn up the individual

channel Volume Controls (1) to be monitored on stage;

turn the remaining channel Volume Controls to

0 (off).

With the OUTPUT SELECTOR Switch in the MIXED IN-

ACCESSORY

INPUT TO

STAGE

SRlOl CONSOLE

4ii~

SR109

MIXER

FIGURE E.

STAGE MONITOR CONNECTIONS

PUTS position and the MONITOR OUTPUTS connected

to the stage monitor power amplifier input, a separate

mix of inputs can be provided for stage monitoring.

The

SRI10 monitors the SR101 or SR109 individual

channels after the

SR101 or SR109 channel input at-

tenuator, volume and equalizer controls.

With the OUTPUT SELECTOR Switch in the PRO-

GRAM INPUT position the stage monitor has the same

mix as the

SRlO1 or SR109. The program outputs of the

SR101 or Sf3109 are used for the "house" PA system.

Broadcast Line, House PA and Stage Monitor

If the

SR101 or SR109 is to be used to feed a broad-

cast line for radio or TV audio, and separate house PA

and stage monitor systems are required, a number of

SRllOs may be connected as shown in Figure F. The

program output of the

SR101 or SR109 feeds the

broadcast line, the monitor output of the first

SR110

feeds a stage monitor power amplifier, and the monitor

output of the second (parallel-wired)

SR110 feeds the

house system power amplifier. Note that since the

ACCESSORY INPUT AND OUTPUT Connectors (8, 9)

of the

SR110 are in parallel, up to eight SRllOs may

be parallel-connected.

The individual channels that are not to be fed to the

stage monitor or house PA can be left off by turning

their Volume Controls (1) to

0 (off).

Stereo or Multi-Channel Tape Recording

A set-up similar to that described under Broadcast

Line

above can be used to record a stereo tape or for

stereo broadcasting. The monitor output from one

SR110 is connected to one input of the tape recorder

and the other

SR110 to the remaining input. This set-up

permits the user to select the desired mix on each

recording channel. For recording on more than two

channels, additional SRllOs can be added as desired.

16-Channel Mixer

For applications requiring the use of more than eight

channels, two SRlOls or

SRlO9s can provide a 16-

channel mixing system by connecting their LINK OUT-

PUT Jacks. Monitoring of all 16 channels can be ac-

complished by connecting two SRllOs to the SRlOls

SRlO9s as shown in Figure

The male ACCES-

MONITOR

TO STAGE

MONITOR

OUT

POWER

AMPLIFIER

FIGURE

BROADCAST LINE CONNECTIONS

1 2 3 4 5 6 7 8 9 10 11 12

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Shure SR101 Series Service Manual Page 4

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