Carvin DCA300 Instruction Manual - Page 14

FEATURES

OF

THE

DCA

SERIES

AMPLIFIERS

***FRONT

PANEL***

#1.

POWER

SWITCH

-

Pushing

the

power

"Up"

will

apply

power

to

your

unit.

The

red

"neon"

light

in

the

power

switch

will

illuminate

to

indicate

the

power

amplifier

is

operational.

Sometimes

the

"neon"

light

in

the

power

switch

will

not

turn

on

instantly

when

the

switch

is

depressed.

This

is

normal

and

does

not

affect

the

operation

of

the

amplifier.

#2.

TEMP

-

The

temperature

light

(Just

above

the

power

switch)

will

illuminate

only

when

the

amplifier

has

overheated.

Under

improper

loading

conditions,

the

"TEMP"

light

will

illuminate

to

indicate

that

the

amplifier

has

been

shut

down

to

properly

cool

itself.

Allow

approximately

15

minutes

for

the

amplifier

to

cool

down

for

normal

operation.

Then

check

to

determine

the

reason

for

the

over

-heating.

Note:

If

the

"Temp"

light

is

consistentlu

turning

on

uou

should

check

your

system

out

thcroughlg.

This

is

an

improper

condition

indicating

that

something

is

wrong.

#

44

L4,

It

4.

&

B

LEUEL

GAIN

CONTROLS

-

These

controls

allow

the

operator

to

adjust

the

sensitivitg

of

the

power

amp

to

match

the

mixer

(or

pre

-amp)

output

levels.

These

controls

d❑

not

limit

the

.amps

output

power,

and

maximum

output

levels

can

be

achieved

at

settings

less

than

full

on.

To

properly

adjust

the

gain

controls:

A.

Set

the

amplifier

pain

to

zero.

E.

Set

the

mixer

or

pre

-amp

master

volume

to

a

"Mid"

position.

Ncw

raise

the

amplifier

gain

to

obtain

the

desired

volume

level.

C.

After

adjustment,

use

the

mixer

or

pre

-amp

level

control

to

adjust

volume.

Note:

The

above

proceedure

usually

delivers

the

best

signal

to

noise

ratio.

LED

CLIP

INDICATORS

-

These

"LED"

clip

indicators

will

light

when

the

amplifier

begins

to

run

out

of

clean

power.

Theg

will

give

you

an

accurate

indication

of

when

distortion

of

the

signal

is

beginning.

These

indicators

monitor

the

input

and

output

circuits

of

the

amplifier

offering

an

accurate

indication

of

any

overloading.

If

the

clip

indicators

are

lighting,

LOU

should

turn

down

either

the

pre

-amp

(mixer)

gain

or

the

gain

at

the

amplifier

until

the

light

just

stops

flashing.

These

indicators

feature

a

special

stretch

and

hold

circuit

that

will

provide

a

very

bright

indication

of

overloads.

Proper

monitoring

of

the

clip

indicators

from

time

to

time

will

ensure

that

the

cleanest

possible

signal

is

being

fed

to

the

amplifier.

Carvin DCA300 Instruction Manual - Page 14

Carvin DCA300 Manual

Page 14 highlights