Crown P.I.P.-RPA Manual

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Side 1/2

RPA-RMT

Installation Guide

Fig. 1 RPA-RMT: Rear View

The resistor that you install deter-

mines how much attenuation is avail-

able. With no resistor installed, the

RPA-RMT will provide full attenua-

tion. Thirty-two resistors with eight

different values are included with

each pair of RPA-RMTs. These eight

resistor values range from 390 to

2.7 K ohms and will satisfy most ap-

plications. Figure 2 shows the corre-

sponding maximum attenuation for

several resistor values.

Once you know the attenuation re-

quirements for your system, use Fig-

ure 2 to determine which resistors

are needed. An equation is provided

in the P.I.P.-RPA

Reference Manual

to calculate other resistor values.

Introduction

The RPA-RMT is a two-channel, wall-

mount remote volume control for use

with the P.I.P.-RPA. It was designed

to offer an attractive, inexpensive

method for controlling audio levels in

a system that uses Crown amplifiers

fitted with P.I.P.-RPA modules. The

P.I.P.-RPA has four remote control

inputs, so two RPA-RMTs are used to

control the four channels.

Resistors

Installations often require control over

the volume range of the system. To

Fig. 2 Remote Control

Resistance/Voltage

limit the system’s maximum output,

simply turn down volume controls on

the

PIP™

or the amplifier. To control

minimum output, you will need to

install resistors in the sockets located

on the back of the RPA-RMT.

One resistor socket in a parallel cir-

cuit is provided for each potentiom-

eter. When the potentiometer pulls

the output voltage below the resistor

value, the resistor allows current to

pass which will control the minimum

output for that channel.

125240-1

9/97

Trademark Notice:

PIP

™ is a trademark and

Crown

and

P.I.P.

® are registered trademarks of Crown International, Inc.

Fig. 3 Bending the

Resistor Leads

To install a resistor, trim the leads

leaving plenty to span the distance

between the sockets and enough to

insert into each socket. Bend the

leads as shown in Figure 3. Be sure

not to bend the leads near the body

of the resistor. Push the leads down

firmly into the sockets. That’s it.

Wiring

Each RPA-RMT has two slide poten-

tiometers. They can be used to con-

trol any two of the four audio inputs on

the P.I.P.-RPA, or they can be ganged

to control more channels. When us-

ing two channels of one amplifier to

feed different rooms, the RPA-RMT

will often be wired to control inputs A

and B, or C and D (see Figure 4).

Here,

PIP

inputs A and B are set to

feed the amplifier’s channel 1, and C

and D are set to feed channel 2. This

wiring scheme allows each RPA-RMT

to control a separate room.

The RPA-RMT does not receive any

audio signals. Instead, it receives

10 VDC supplied by the P.I.P.-RPA.

The voltages that return to the

PIP

control its VCAs (Voltage-Controlled

Amplifiers) which control the levels of

the corresponding audio inputs.

Connect the P.I.P.-RPA’s 10 V output

to the RPA-RMT’s +10 V input. Inside

the RPA-RMT, the 10 V signal is fed to

both potentiometers. In turn, the po-

tentiometers control the voltages leav-

ing through the RMT 1 and RMT 2

outputs. Connect these outputs to

any of the four remote inputs on the

P.I.P.-RPA labeled RMT A, B, C or D.

When connecting two remote control

units, run the DC output from the

P.I.P.-RPA in parallel to feed both DC

inputs on the remote units.

When ganging several channels on

one remote slider, run jumper wires

from the remote input on the P.I.P.-

RPA to the other channels being con-

trolled (see the P.I.P.-RPA

Reference

Manual

for more details).

Mounting

Mount the RPA-RMT as you would an

AC outlet. Do not mount it in a box

having hot AC! Also, be careful not to

mount it upside down. You can orient

the unit by rotating it until the number

10 on back is at the top and the

number 0 is at the bottom (see Figure

1). Line up the threaded holes in the

receptacle box with the square open-

ings in the RPA-RMT and secure it

with the provided screws.

The RPA-RMT is designed to accept

“designer” series cover plates. Cover

plates are not included because the

provided stick-on labels allow con-

siderable flexibility when choosing

colors to match different interiors.

Labels

Three labels are supplied, each with

a different color scheme: white back-

ground with brown print, ivory back-

ground with brown print and brown

background with ivory print. These

labels match industry standard col-

ors and allow you to select cover

plates to match almost any interior.

Select a stick-on label and affix it to

the remote control faceplate. You can

use the opening in the cover plate as

a guide. Peel the backing and the

plastic front protector from the label

and affix it to the remote unit face-

plate. The last step is to push on the

slider knobs.

If you need more information or fur-

ther assistance, feel free to contact

Crown Technical Services at 219-

294-8200 or 1-800-342-6939.

Fig. 4 Wiring for Two RPA-RMTs

P.O. BOX 1000,Elkhart,IN 46515-1000 USA

(TEL)800-342-6939 OR 219-294-8000, (FAX)219-294-8329

Produkt Specifikationer

Mærke:	Crown
Kategori:	Ikke kategoriseret
Model:	P.I.P.-RPA

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