Pioneer GM-2000A User manual

PIONEER.

BRIDGEASLE

POWER

AMPLIFIER:

SPM

POWER

SUPPLY

20H

ICH

Features

The

pulse

width

modulation

(PWM)

used

the

DC/DC

convert-

circuit

give

high-power

output

100

for

stereo

and

200

for

mono

with

low

distortion.

The

auto

input

selector

makes

easy

connect

the

amplifier

car

stereo

with

DIN

sockets

one

with

RCA

jacks.

The

bridgeable

function

allows

switching

between

two

channel

mode

(stereo)

and

single-channel

mode

(mono)

simply

operat-

ing

the

mode

select

switch.

The

low

boost

switch

enhances

low-frequency

sounds.

The

low-pass

filter

(LPF)

switch

allows

the

amplifier

used

power

amplifier

for

sub-woofers.

The

use

oxygen-free

copper

(OFC)

speaker

leads

and

audio

capacitors

assures

high-quality

sound.

The

large

aluminum

heatsink

gives

good

radiation

help

main-

tain

stable

power

for

extended

periods.

Controls

and

their

Use

Gain

Control

the

output

low

even

when

the

volume

the

car

stereo

turned

up,

turn

this

control

clockwise.

there

distortion

when

the

volume

the

car

stereo

turned

up,

turn

this

control

counter-clockwise.

Low

Boost

Switch

Press

this

switch

increase

the

volume

sounds

the

low-fre-

quency

range

your

car

audio

system

does

not

reproduce

enough

bass

sounds.

This

effective

when

the

amplifier

used

drive

sub-woofer.

there

are

low-frequency

sounds

the

music

you

are

listening

to,

you

are

using

relatively

smail

speakers,

this

switch

may

not

make

much

difference.

Low

Pass

Filter

(LPF)

Switch

this

switch

pressed

when

this

amplifier

used

drive

sub-woofer,

only

sounds

the

low-frequency

range

will

output.

Mode

Select

Switch

Press

this

switch

use

the

amplifier

mono

amplifier.

When

the

amplifier

used

this

way,

the

speaker

leads

need

con-

nected

accordingly.

(See

“Connecting

Speaker

Leads”

page

5.)

Load

Impedance

Select

Switch

Press

this

switch

when

the

impedance

the

speaker

speakers

connected

this

amplifier

less

than

ohms.

Power

Indicator

The

power

indicator

lights

when

the

power

switched

on.

HSIIDNA

Connecting

the

Units

Connect

the

components

correctly

shown

the

diagram.

Test-connect

all

components

before

securing

them

into

place.

Test-operate

your

entire

car

stereo

system

ensure

that

there

are

faulty

wiring

connections

between

this

unit

and

the

rest

your

Car

stereo

system.

The

input

selector

this

amplifier

functions

automatically.

Therefore,

the

amplifier

may

used

with

either

Pioneer

car

stereo

with

DIN

sockets

car

stereo

with

RCA

jacks.

For

information

about

connecting

stereo,

see

the

section

entitled

"When

combined

with

car

stereo

with

DIN

sockets"

that

entitled

"When

combined

with

car

stereo

with

RCA

jacks".

When

two

channels

(stereo)

are

used,

the

speakers

should

have

minimum

rating

100

more.

When

single

channel

(mono)

used,

the

speaker

should

have

minimum

rating

200

more.

speaker

whose

rating

below

that

recommend-

used,

the

speaker

may

damaged.

The

impedance

the

speakers

should

between

and

ohm.

For

detailed

information

concerning

connections

between

differ-

ent

components

and

this

unit

consult

their

respective

instruction

manuals

and

those

recommendations

precisely.

When

wiring

connecting

leads

into

place

secure

them

with

clam-

pers

and

adhesive

electrician's

tape.

Additionally,

prevent

any

damage

the

insulative

coating

the

connecting

leads,

protect

them

with

adhesive

electrician's

tape

wherever

they

may

come

into

contact

with

any

sharp

edges.

Wire

all

connecting

leads

that

they

stay

well

clear

high-tem-

perature

areas

such

the

heater

exhaust

port.

operate

the

amplifier

and

car

stereo

properly,

install

the

contin-

uous

power

supply

lead

(orange)

and

the

accessory

power

lead

(red)

correctly.

the

leads

are

not

installed

correctly

are

not

connected

ali,

the

amplifier

and

car

stereo

will

not

work.

The

supplied

speaker

lead

with

green

stripes

not

used

for

sin-

gle

channel

(mono)

arrangement;

keep

case

you

need

future.

Connecting

Leads

(Supplied)

Commectna

the

Continuous

Power

Supply

Lead

(Orange)

Route

the

continuous

power

supply

lead

from

the

engine

com-

partment

the

passenger

compartment

and

connect

the

amplifier.

prevent

short-circuits,

make

sure

you

connect

all

the

other

leads

first,

then

connect

the

end

the

continuous

power

supply

lead

the

positive

(+)

terminal

the

battery.

Fusjble

link

Passenger

compartment

—|

—~»>

Engine

compartment

Continuous

power

Fit

the

rubber

ether

iiss

ead

supply

lead

finally

connect

this

terminal

the

positive

(+)

termi-

nal

the

battery.

grommet

into

the

hole

the

car

body.

Drill

hole

the

car

body.

CAUTION

The

fusible

link

safety

device

NOT

DEFEAT

ITS

PURPOSE

Should

the

fusible

link

blow

Check

the

continuous

power

supply

lead

for

possible

cause

short

circuit.

NOT

replace

the

fusible

link

with

any

other

similar

fuse

available

the

market

bypass

the

fusible

link,

may

cause

damage

the

unit

the

car

electrical

system.

Contact

your

dealer

the

nearest

authorized

PIONEER

Service

Station

immediately.

sure

bring

the

continuous

power

supply

lead

when

taking

the

unit

for

repair.

Connecting

Speaker

Leads

This

amplifier

has

mode

select

switch

select

two-channel

out-

put

(stereo)

one-channel

output

(mono).

The

speaker

leads

must

connected

suit

the

mode

selected.

Connect

the

speak-

jeads

the

output

terminals

the

amplifier

shown

Fig.

and

paying

attention

the

polarities

and

lead

colors.

When

two

channels

(stereo)

are

used

Set

the

mode

select

switch

the

2CH

position.

Black,cover

Fig.

rocedure

for

Connecting

Speaker

Leads

Loosen

the

four

output

terminal

screws

the

rear

the

amplifi-

the

middle.

Insert

each

speaker

lead

terminal

into

output

terminal

accord-

ing

the

selected

mode.

(Fig.

Tighten

each

output

terminal

screw.

Fit

the

large

terminal

cover.

(Fig.

When

one

channel

(mono)

used

Set

the

mode

select

switch

the

1CH

position.

The

speaker

lead

with

green

stripes

not

used;

keep

case

you

need

future.

Terminal

screw

Speaker

lead

terminal

pus

out

Gray

cover

Output

terminal

Fig.

Large

terminal

cover

Pass

the

speaker

leads

through

the

large

terminal

cover,

then

fit

the

cover.

Fig.

Procedure

for

Connecting

Continuous

Power

Supply

Lead

(Orange)

and

Grounding

Lead

(Black)

Pass

the

continuous

power

supply

lead

(orange)

and

the

ground-

ing

lead

(black)

through

the

small

terminal

cover.

(Fig.

Remove

the

screws

the

continuous

power

supply

terminal

and

the

grounding

terminal

the

rear

the

amplifier

the

left.

Replace

the

screws

removed

step

the

terminals

and

tight-

them.

(Fig.

Fit

the

small

terminal

cover.

(Fig.

Terminals

Continuous

power

supply

lead

(orange)

Fusible

link

Small

terminal

cover

Grounding

lead

(black)

Fig.

Continuous

power

supply

terminal

Grounding

Terminal

screw

terminal

Continuous

power

ISS

supply

lead

(orange)

Grounding

lead

(black)

Small

terminal

cover

Fig.

When

Combined

with

Car

Stereo

with

DIN

Sockets

See

Note

Car

stereo

with

reen

stripes

DIN

sockets

Left-side

speaker

Black

stripes

Fuse

for

continuous

Right-side

speaker

power

supply

Connect

metal

body

chassis.

Fusible

link

Connect

all

the

other

leads,

and

finally

connect

this

terminal

the

positive

(+)

terminal

the

battery.

not

connect

anything

electric

terminal

controlled

this

terminal.

ignition

switch

(12

DC)

ON/OFF.

Note

Connection

the

speaker

leads

for

two

channels

(stereo)

minal

(clock

illumination,

small

different

from

connection

the

speaker

leads

for

one

lamp

circuits,

etc.)

the

car's

channel

(mono).

(See

“Connecting

Speaker

Leads”

lighting

switch.

Fuse

holder

page

5.)

Connect

the

positive

(+)

ter-

Yellow

lead

When

Combined

with

Car

Stereo

with

RCA

Jacks

See

Note

reen

stripes

_-Biack

stripes

Left-side

speaker

Fuse

for

continuous

Right-side

speaker

power

supply

Connect

metal

body

chassis.

Fusible

link

Connect

all

the

other

leads,

and

finally

connect

this

terminal

the

positive

(+)

terminal

the

battery.

electric

terminal

controlled

Red

lead

ignition

switch

(12

DC)

ON/OFF.

not

connect

anything

this

lead

(connect

the

yellow

lead

car

stereo

equipped

with

jacks

the

proper

lead

desig-

nated

locations).

Yellow

lead

Fuse

holder

io]

Red

White

When

connecting

leads

with

RCA

plugs

(sold

separately)

the

auxiliary

input

jacks

(red

and

white)

this

unit,

connect

the

right

channel!

the

red jack

and

connect

the

left

channel

the

white

jack.

-HSITDNa

Car

stereo

with

RCA

jacks

Red

White

Connecting

leads

with

RCA

piugs

(sold

separately)

Blue

lead

Blue

lead

Connect

the

male

terminal

this

lead

the

blue

lead

the

car

stereo

(system

control

terminal).

The

female

terminal

can

connected

auto-antenna

relay

control

terminal.

Note

Connection

the

speaker

leads

for

two

channels

(stereo)

different

from

connection

the

speaker

leads

for

one

channel

(mono).

(See

“Connecting

Speaker

Leads”

page

5.)

Installation

sure

use

the

parts

supplied

and

install

the

unit

securely.

parts

other

than

those

supplied

(specified)

are

used,

they

may

loosen

cause

damage

internal

Parts.

sure

install

the

unit

ina

places

where

the

driver

not

both-

ered

and

where

there

danger

passengers

being

injured

case

sudden

stops.

sure

consult

your

dealer

before

making

any

holes

the

car.

Cooling

efficiency

degraded

making

installations

hot

places

such

near

the

heater

outlet,

the

glove

compartment

and

under

floor

mats

that

are

tightly

closed.

prevent

short-circuits,

sure

disconnect

the

negative

bat-

tery

terminal

before

wiring

the

system

up.

When

you

finish

the

installation,

sure

make

one

check

sure

everything

done

correctly.

Reinstall

all

car

parts

that

were

removed.

Reconnect

the

negative

battery

lead.

Example

Positions

Installation

Under

the

front

seat

Inside

the

trunk

(Drill

hole

into

the

Passenger

compartment

and

pass

the

leads

through

it.)

Attaching

the

Brackets

Using

the

screws

supplied,

attach

the

supplied

pair

brackets

the

bottom

face

the

unit

shown

Fig.

the

unit

installed

directly

the

car

floor

without

using

the

supplied

brack-

ets

may

overheat,

causing

the

protection

circuitry

operate.

Screw

mm)

Bracket

Fig.

For

Installationon

the

Floor

Mat

Chassis

Install

the

unit

the

floor

mat

the

chassis

using

the

supplied

tap-

ping

screws

mm).

(Fig.

Tapping

screw

mm)

Bracket

Drill

diameter

holes.

Fig.

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