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B c gain, Mic level, Line level – Protech Audio 51003 User Manual

Page 5: Remote closure, Off on on

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SPECIAL FEATURE SECTION

FEATURE SETUP

PRIORITY INPUT ON CHANNEL 1

AUXILLARY INPUT

The auxillary input is wired thru the rear barrier terminal, and is normalled thru the front panel phone jack.
Plugging a phone plug into the front panel jack disconnects the rear terminal auxillary input. It also allows
audio on the phone plug to enter the mix buss thru the front panel AUX pot.
Wiring for the front panel jack is as follows;

TO AUX LEVEL CONTROL

FROM REAR BARRIER INPUT

The priority feature on channel 1 disconnects all other inputs from the summing buss, with the exception of
the summing buss link on the rear barrier. The priority feature may be used in one of two modes;
Automatic = any audio applied to the #1 input will automatically activate the priority feature,
Manual = a closure applied to the rear barrier terminal will activate the feature.
To use the automatic function, loosen the two thumbscrews and remove the electronic section from the
chassis.
Slide thepriority switch (see pc layout drawing) to the ON position.
Slide electronic section back into chassis, making sure pc board is seated properly in mating connectors, and
tighten thumbscrews.
To use the manual mode, apply a closure to the rear barrier terminal as shown below.

LO

HI

SH

LO

HI

A

B

OUTPUTS

HI

ARM

LO

RMT

SUM

AFX

MUTE

AUX

IN

OUT

SH

IN

OUT

SW

IN

HI

SH

REMOTE
CLOSURE

OUTPUT

TRANSFORMERS

MIC / LINE SWITCHES

INPUT

SELECT

SWITCHES

RMT

LOC

EQ

LIM

LIMITER

ADJUST

PRIORITY

OFF

GND

ON

ON

IN

D
C
B
A

AUX

JACK

POWER

ON/OFF

LED

INPUT LEVEL CONTROLS

1

2

3

4

5

6

7

BASS

TREBLE

B

A

MASTER

OSC

TRIM

METER

A/B

METER

ON

OFF

MIC

LINE

MIC

MIC

MIC

MIC

MIC

LINE

LINE

LINE

LINE

LINE

OFF

ON

OFF

ON

35dB

57dB

50dB

60dB

B C Gain

OFF

OFF

ON

ON

MIC

LEVEL

OFF

ON

OFF

ON

0dB

20dB

15dB

25dB

B C Gain

OFF

OFF

ON

ON

LINE

LEVEL

B = GAIN SELECT

D

=

BYPASS,

L/F

ROLL

OFF

C = GAIN SELECT

A

=

PHANTOM

POWER

DIP SWITCH LEGEND:

#1

#2

#3

#4

#6

#5

#7

#9

#8

ON

GND

LIFT

OUT

OFF

DIST.

ADJUST