Akai GX-230 Manual de usuario

X-230/230D

STEREO

TAPE

RECORDER/TAPE

DECK

OPERATOR’S

MANUAL

CEE, CSA,

UL,

and

standard

models

are

not

equipped

with

Voltage

Selector.

Therefore,

voltage

conversion

not

necessary.

your

machine

corresponds

any

these

standards,

please

disregard

all

references

voltage

adjustment

throughout

this

manual.

CEE

Models

220V,

CSA

Models

120V,

Models

120V,

WARNING:

prevent

fire

shock»

hazard,

not

expose

this

appliance

rain

moisture.

MANUFACTURED

DISTRIBUTED

AKAI

ELECTRIC

CO.,

LTD./AKAI

TRADING

CO.,

LTD./AKAI

AMERICA

LTD.

CONTROLS

INTRODUCTION

Your

ALL

HEAD

unit

constructed

the

very

finest

materials

and

incorporates

the

very

latest

recording

and

playback

techniques.

This

model

employs

3-motor

system

including

Servo

motor

for

direct

capstan

drive.

This

new

system

assures

perfectly

stable

motor

revolutions

and

tape

speed.

The

precision

mechanisms

this

machine

matches

the

famous

wear-free

Head

character-

istics

for

unequalled

performance.

Thus,

with

proper

care,

your

unit

will

give

you

many

years

service.

We,

therefore,

urge

you

READ

THIS

MANUAL

CAREFULLY

prior

operation.

REEL

RETAINER

(Left)

SUPPLY

REEL

TABLE

HEAD

COVER

Houses

Forward

Playback,

Reverse

Playback,

and

Combination

Recording/Erase

Heads.

TENSION

ARM/SENSING

POLE.

Provides

proper

tension

for

smooth

tape

travel.

Also

functions

sensing

pole

for

automatic

reverse

(Refer

Automatic

and

Manual

Reverse).

IMPEDANCE

ROLLER:

POWER

SWITCH:

TAPE

MONITOR

SWITCH

monitor

recorded

signals

for

playback,

set

TAPE

position,

and

monitor

program

source,

set

SOURCE

position.

Monitoring

during

recording

cannot

accomplished

when

using

the

DIN

Jack.

HEADPHONE

JACK

Accomodates

stereo

headphones

ohms

impedance.

MICROPHONE

JACKS

(Left/Right)

TAPE

SPEED

SWITCH:

VOLUME

CONTROLS

(Left/Right)

(GX-230D

OUTPUT

LEVEL

CON-

TROL)

Adjusts

output

level

playback

time.

TAPE

SELECTOR

SWITCH

LOW

NOISE:

Set

this

position

when

using

Low

Noise

Tape.

WIDE

RANGE:

Set

this

position

when

using

Wide

Range

Tape.

—

Scotch

#211

Low

Noise

Tape

considered

standard

for

this

machine.

The

use

regular

tape

not

recommended.

Set

Wide

Range

position

only

when

using

special

Wide

Range

Tape

grade

higher

than

Low

Noise

Tape.

CORD.

UNIVERSAL

VOLTAGE

SELECTOR

(CEE,

CSA,

and

models

not

equipped

with

this

facility)

Offers

six

selections

voltage

for

worldwide

operation.

(Refer

VOLTAGE

CONVERSION

procedure).

INDEX

COUNTER

AND

RESET

BUTTON

Provides

easy

reference

for

quickly

locating

positions

the

tape.

reset

0000",

depress

Reset

Button.

PINCH

ROLLER

Presses against

capstan

transport

tape.

TAPE

GUIDE

RECORDING

(REC)

KEY

Depress

this

key

and

the

PLAY

Key

simultaneously

effect

recording

mode.

REEL

RETAINER

(Right)

TAKE

REEL

TABLE

REWIND

-a-a

KEY

Rewinds

tape

high

speed.

RECORDING

INDICATOR

LAMP

Lights

when

the

REC

Key

depressed.

STOP

EEH

KEY

Depress

stop

tape

travel.

TENSION

ARM/AUTOMATIC

STOP

LEVER

Provides

even

tension

for

smooth

tape

travel.

Also

functions

Automatic

Stop

Lever

(At

the

end

the

tape,

the

tape

accidentally

broken,

this

lever

drops,

activating

the

automatic

stop

mechanism

and

reel

movement

stopped).

MANUAL

REVERSE

BUTTONS

Depress

reverse

tape

direction

during

playback.

PLAY

KEY

Advances

tape

for

recording

playback

mode.

FAST

FORWARD

&-»-

KEY

Forwards

tape

high

speed.

MICROPHONE

INPUT

LEVEL

CONTROLS

(Left/Right)

Controls

microphone

input

volume.

Adjust

while

observing

Meters.

LINE

INPUT

LEVEL

CONTROLS

(Left/Right)

Controls

line

input

volume.

Adjust

while

observing

Meters.

«lll

]

Tiri

PAUSE

SWITCH

Depress

temporarily

suspend

tape

travel

during

recording

playback.

Especially

convenient

for

editing

tape.

Simply

depress

when

certain

portion

the

program

not

desired.

—

Pause

Control

does

not

function

during

Fast

Forward

Rewind

Mode.

CAPSTAN

METERS

(Left/Right)

Indicates

recording

and

playback

levels.

Normal

recording

should

not

exceed

“Or

MU.

SPEAKER

JACKS

(Left/Right)

(Model

GX-230

only)

CYCLE

CHANGE

SWITCH

(CEE,

CSA,

and

models

not

equipped

with

this

facility)

Set

position

according

area

power

source.

DIN

JACK

Enables

inter-connection

with

external

amplifier

through

single

Din

connection

cord.

Monitoring

during

recording

cannot

accomplished

when

using

the

DIN

Jack.

LINE

INPUT

JACKS

Connects

outputs

external

source.

LINE

OUTPUT

JACKS

(Left/Right)

Connects

tape

inputs

external

amplifier

recorder.

OPERATING

PRE

TIONS

Your

machine

requires

constant

voltage

for

optimum

perform-

ance.

voltage

change

necessary,

refer

VOLTAGE

CONVERSION

procedure.

dirty

magnetized

heads

become

the

source

loss

sound,

sound

drop-out,

distortion,

and

other

recording

and

playback

failures,

the

heads

should

kept

clean

and

de-

magnetized

all

times.

Place

machine

flat

level

surface

and

operate

either

vertical

horizontal

position.

not

place

unit

near

appliances

etc.

which

generate

noise.

Avoid

using

your

machine

extremely

hot

and

humid

dusty

places.

not

block

the

ventilator.

For

clear

sound,

avoid

over-level

recording.

Normal

recording

NU.

the

sound

sources

are

far

away

from

the

microphones

that

the

input

level

controls

must

turned

maximum,

some

hum

noise

will

inevitably

recorded.

test

recording

recommended

before

making

final

recording.

Scotch

#211

Low

Noise

Tape

standard

for

this

machine.

The

use

regular

tape

not

recommended.

Set

Tape

Selector

Switch

Wide

Range

position

only

when

using

special

wide

range

tape

grade

higher

than

low

noise

tape.

tapes

which

have

not

been

used

for

period

time

may

have

become

sticky,

run

tape

once

before

using.

Always

store

tapes

cool,

dry

place.

Proper

tape

tension

and

automatic

stop,

cannot

effected

the

tape

not

threaded

through

the

Tension

Arm/Automatic

Stop

Lever.

Refer

Tape

your

machine

will

not

record

playback,

check

input

and

output

connections

and

controls

and

position

Pause

Switch.

Should

there

problem

with

your

machine,

write

down

the

model

and

serial

numbers

and

all

pertinent

data

regarding

warranty

coverage

well

clear

description

the

existing

trouble

and

contact

your

nearest

authorized

Akai

Service Station

the

Service

Department

Akai

Company,

Tokyo,

Japan.

VOLTAGE

AND

CYCLE

CONVERSION

(CEE,

CSA,

and

models

are

not

equipped

with

Voltage

and

Cycle

conversion

apparatus.)

VOLTAGE

pum

oltage

Selector

Plug

Fuse

Post

Your

machine

equipped

with

universal

voltage

selector

offering

six

selections

voltage

from

100V

240V

AC.

Voltage

preset

the

factory

according

destination.

However,

the

operator

requested

reconfirm

setting

and,

necessary,

readjust

follows:

(1)DISCONNECT

POWER

CORD

and

remove

the

Fuse

Post

screwing

direction

arrow.

(2)Remove

the

Voltage

Selector

Plug

and

reinsert

that

proper

area

voltage

shows

through

the

plug

cut-out.

(3)Change

fuse

correspond

with

fuse

post.

(Refer

standard

accessory

spare

fuse

tag

instructions

for

proper

fuse).

maintain

optimum

performance

and

prolong

the

life

your

machine,

important

that

the

line

voltage

held

within

1096

standard

area

voltage

CYCLES

Correct

tape

speed

cannot

attained

the

Cycle

Change

Switch

not

properly

positioned.

Set

60 Hz

position

according

area

power

source.

TAPE

Place

full

reel

tape

the

Supply

Reel

Table

and

empty

reel

the

Take-Up

Reel

Table.

Thread

the

tape

illustrated

the

dotted

lines

the

figure.

Lock

reels

into

place

with

Reel

Retainers

provided

reel

shafts.

sure

thread

tape

through

Tension

Arm/Automatic

Stop

Lever.

TAPE

SPEED

SELECTION

This

model

operates

7-1/2

and

3-3/4

ips

tape

speed.

Select

desired

speed

with

Tape

Speed

Switch.

Stereo

recording

time

using

1,800

ft.

tape

hrs.

3-3/4

ips

and

1-1/2

hrs.

7-1/2

ips.

4-TRACK

RECORDING/PLAYBACK

SYSTEM

This

model

employs

4-track,

2-channel

stereo

recording

and

playback

system.

STEREO

RECORDING

AND

PLAYBACK

STEREO

Track

Steene

Track

R2—

R2-—

Stereo

[zou]

Stereo

recording

and

playback

requires

the

simultaneous

use

two

tracks.

The

first

stereo

recording

and

playback

takes

place

tracks

and

The

second

playback

takes

place

tracks

and

after

the

machine

has

been

set

reverse

playback

mode

the

reels

have

been

inverted.

record

tracks

and

invert

reels.

This

model

does

not

record

reverse

direction.

AUTOMATIC

MANUAL

REVERSE

PLAYBACK

This

model

features

automatic

and

manual

reverse

playback

which

eliminates

the

trouble

inverting

reels

hand.

For

automatic

reverse

(from

forward

reverse

playback),

simply

apply

about

3/A"

cm)

piece

sensing

foil

the

outside

the

tape

desired

reversing

point.

For

manual

reverse

either

direction,

operate

Manual

Reverse

Buttons

any

time

during

playback.

DIRECT

FUNCTION

CHANGE

CONTRO

This

machine

features

direct

function

change

from

Play

Recording

mode

Forward

Rewind

and

between

Forward

and

Rewind.

Depress

STOP

Key

stop

Forward

Rewind.

STEREO

PLAYBACK

Make

necessary

connections

shown

CONNECTING

DIA-

GRAM

and

load

pre-recorded

tape.

Turn

Power

Switch.

Set

Monitor

Switch

TAPE

position.

Select

tape

speed.

Depress

PLAY

Key

begin

playback.

Adjust

Volume

Controls

(GX-230D

Output

Level

Control)

and

external

amplifier

controls.

Depress

Manual

Reverse

Button

-æ

for

playback

tracks

2-4.

Because

Model

GX-230

equipped

with

built-in

amplifier,

pair

speakers

all

that

necessary

for

playback.

However,

this

model

can

also

connected

pair

speakers

through

external

amplifier

the

same

way

Model

GX-230D

(Refer

CONNECTING

DIAGRAM).

moogmomr»

Ez]

STEREO

RECORDING

Make

necessary

connections

shown

CONNECTING

DIA-

GRAM

and

load

tape

(New

tape

gives

best

results).

Turn

Power

Switch.

Select

tape

speed.

Set

Tape

Selector

Switch

according

tape

being

used.

(Refer

Tape

Selector

Switch

under

CONTROLS).

With

Reset

Button,

set

Index

Counter

“0000”.

(Provides

easy

reference

for

locating

positions

the

tape).

Set

Tape

Monitor

Switch

SOURCE

position.

Depress

Recording

(REC)

Key.

(Recording

Indicator

Lamp

will

light).

Adjust

and

balance

input

level

with

appropriate

Input

Level

Controls.

When

optimum

recording

level

has

been

determined,

while

holding

the

REC

Key

depressed

position,

depress

PLAY

Key

begin

recording.

Invert

reels

record

tracks

2-4.

Dual

Monitoring

(comparing

signals

being

recorded

with

source)

can

accomplished

switching

the

Tape

Monitor

Switch

and

from

TAPE

and

SOURCE

positions.

This

enables

precise

adjustment

input

level

for

professional

recording

results.

Caution:

Monitoring

during

recording

cannot

accomplished

when

using

the

Din

Jack.

For

Microphone

and

Line

Mixing,

connect

microphones

Microphone

Jacks

and

other

source

Line

Input

Jacks.

Adjust

microphone

input

with

Microphone

Recording

Level

Controls

and

line

input

with

Line

Input

Level

Controls.

ABSENTEE

RECORDING

(timer

recording)

using

external

timer,

absentee

recording

can

accomplished

with

this

machine,

Load

tape

for

recording,

avoiding

tape

slack.

Adjust

input

level

following recording

procedure

and,

with

the

Power

Switch

turned

and

the

REC

and

PLAY

Keys

locked

into

recording

mode

positions,

set

timer,

following

manufacturer's

instructions.

timer

set

coincide

with

source

timing,

the

recorder

will

automatically

begin

recording

according

setting.

This

machine

features

Automatic

Stop

which

effected

the

end

the

tape

(The

Tension

Arm/Automatic

Stop

Lever

drops

and

the

automatic

stop

mechanism

activated

stop

reel

movement).

EAD

CLEANING

While

Heads

not

require

great

deal

cleaning,

old

tape

which

has

been

spliced,

etc.

used,

head

cleaning

recommended.

It is

especially

important

that

the

heads

clean

prior

recording.

Remove

head

cover

and

clean

the

heads

with

cotton

swab

stick

which

has

been

dipped

Akai

Cleaning

Fluid

(from

Head

Cleaning

Kit

HC-500).

Also

clean

the

pinch

roller,

capstan

shaft,

and

tape

guides,

etc.

over

which

the

tape

travels.

Akai

Cleaning

Fluid

not

available,

use

alcohol.

not

use

other

chemical

cleaners

the

rubber

parts

will

deteriorate.

HEAD

DEMAGNETIZING

Normally,

the

steel

pole

pieces

which

form

part

the

recording

and

playback

head

become

slightly

magnetized.

The

effect

magnetization

considerable

drop-out

and

noise.

Therefore,

recommended

that

head

demagnetizing

performed

periodically.

This

can

accomplished

with

bulk

Head

Demagnetizer

bringing

the

prongs

the

demagnetizer

the

heads

and

making

several

small

circular

motions

over

all

head

surface

areas

well

the

head

housing.

sure

cut

off

the

power

the

unit

prior

demagnetizing

the

heads.

Avoid

switching

the

demagnetizer

and

off

near

the

head

block

area

Meters.

not

use

magnetized

tools

the

vicinity

the

heads.

TAPE

SPLICING

AND

EDITING

Cut

tape

diagonally

with

overlap

that

the

ends

are

lined

(cutting

diagonal

eliminates

detection’

splice

recording).

Cover

aligned

ends

with

splicing

tape.

Press

firmly

exerting

pressure

secure

ends

evenly.

Trim

off

excess

splicing

tape,

cutting

into

tape

very

slightly.

This

eliminates

the

possibility

sticky

splice.

For

smooth

and

easy

tape

splicing,

Akai's

portable

tape

splicer,

Model

AS-3

recommended.

TAPE

ERASING

Any

signal

information

previously

recorded

tape

will

erased

automatically

new

recording

made

the

same

tape.

For

erasing

only,

thread

the

tape

and

set

machine

recording

mode.

plugs

should

connected

the

input

jacks

and

recording

input

level

controls

should

set

minimum.

TECHNICAL

DATA

Track

System

........

track

channel

stereo

system

Reel

Capacity

7”

reel

TapeSpeed

..........

7-1/2

and

3-3/4

ips

(£0.7%)

Wow

and

Flutter

......

Less

than

0.06%

RMS

7-1/2

ips;

Less

than

0.08%

3-3/4

ips

23,000

(+3

dB)

7-1/2

ips

using

AKAI

LN-150-7

Tape.

30 Hz

19,000

(+3

dB)

3-3/4

ips

using

AKAI

LN-150-7

Tape.

Distortion:

scans

eus

Less

than

(1,000

“0”

VU)

Signal-to-Noise

Ratio

...

Better

than

(measured

via

tape

with

peak

recording

level

VU)

Frequency

Response

Erase

Ratio

«esee

Better

than

dB.

Bias

Frequency

zen

100

KHz

Heads.

«xe

atre

(3):

One

Forward

Playback,

One

Reverse

Playback,

One

combination

Recording/

Erase

Head

MOTORS.

caso

roti

ois

(3):

One

Servo

Motor

for

capstan

drive,

Two

eddy

current

motors

for

reel

drive

Fast

Forward

and

Rewind

STILE

ore

eese

sec.

using

1,200

ft.

tape

Output

Jacks

........

Line

(2):

0.775V

("0'"

VU)

(Required

load

impedance:

than

ohms)

Phone(1):

Speaker(2):

Continuous

power

output:

watts

per

channel

minimum

RMS

ohms

load

impedance

from

100

20,000

Hz,

both

channels

fully

driven

rated

per

channel

power

with

than

3?6

total

harmonic

distortion.

Input&acks

..:22—

Microphone(2):

0.3

mV/4.7

ohms

Line

(2):

Diti

Jaeke

ede

0.5

V/3

Semi

Conductors

GX-230:

Transistors

41,

Diodes

32,

ICs

GX-230D:

Transistors

41,

Diodes

U.S.A.

and

Canada

(CSA,

UL,

and

LA)

Models:

120V,

only;

CEE

Models:

220V,

only;

Other

Models:

100V

240V,

50/60

(Switchable)

GX-230:

120W;

GX-230D:

90W

Power

Requirements

...

Power

Consumption

Dimensions

..........

440(W)

395(H)

205(D)

(17.3

15.6

8.1")

Weight:

esee

GX-230:

16.7

(36.7

Ibs.)

GX-230D:

15.2

(33.4

Ibs.)

Specifications

determined

with

Scotch

#211

tape

unless

other-

wise

noted.

For

improvement

purposes,

specifications

and

design

are

subject

change

without

notice.

STANDARD

ACCESSORIES

Empty!

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sueus

ecouter

COT

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ente

veis

Connection

Gold...

eessoceseeets

tette

nike

adalat

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USGS

cose

cocer

seus

CAVE

Ens

oae

IDEE

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set

Operators

Manwalh...gscdscwsee

ataca

wane

SON

eaten

AGERE

Spare

fuses

not

included

with

CEE,

CSA,

UL,

and

models.

CONNECTING

DIAGRAM

MODEL

GX-230

ONLY

apn

SPEAKER

The

Din

Jack

can

used

instead

Line

Jacks.

This

enables

connection

with

amplifier

through

single

Din

Cord.

When

recording

using

Din

Jack,

adjust

input

with

MICROPHONE

INPUT

LEVEL

CONTROLS.

Koo

TAPE

DECK

RECORDER

RECORD

PLAYER

WITH

CRYSTAL

CERAMIC

PICK-UP

STEREO

AMPLIFIER

ooo

ooooQ

RECORD

PLAYER

WITH

STEREO

TUNER

SPEAKER

MAGNETIC

CARTRIDGE

MANUFACTURED

DISTRIBUTED

AKAI

ELECTRIC

CO,

LTD.

AKAI

TRADING

CO,

LTD.

12-14,

2-chome,

Higashi-Kojiya,

Ohta-ku,

Tokyo,

Japan

AKAI

AMERICA

LTD.

2139

Del

Amo

Blvd.,

Compton,

Calif.,

90220,

U.S.A.

TELEPHONE:

(213)

537-3880

TELEX:

67-7494

Printed

Japan

M02J7506257583

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