Teac A-2340 Manual de usuario

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1

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INSTRUCTION

MANUAL

A-2340

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Connections

to

and

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the

2340/3340

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Location

of

controls:

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General

recording

information

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INTRODUCTION

Your

new

TEAC

2340/3340

has

been

manufactured

under

the

strictest

quality

control

procedures,

each

unit

has

been

thoroughly

checked

at

the

factory.

Should

any

damage

have

been

incurred

during

transit

or

should

you

have

any

doubts

as

to

its

performance,

contact

your

dealer

as

soon

as

possible.

Our

investigation

has

shown

that

approximately

40%

of

the

calls

for

service

immediately

after

purchase,

result

from

improper

operation

of

the

equipment.

Therefore

it

is

important

that

you

thoroughly

read

and

understand

this

manual

before

placing

the

unit

in

operation,

A

lack

of,

or

improper

cleaning

can

also

result

ina

degradation

of

performance.

Careful

observation

of

the

cleaning

and

servicing

hints

contained

in

this

mane

will

contribute

to

a

lengthened

trouble

free

unit

life,

In

this

manual

al?

2340/3340

control

designations

will

be

in

upper

case

letters,

‘exactly

as

they

appear

on

the

tape

deck,

External

amplifier

controls

will

be

in

lower

case

letters

and

may

not

correspond

to

those

on

your

amplifier.

Throughout

the

manual

you

will

see

repeated

references

to

"front"

and

“rear”

amplifiers.

These

terms

do

not

refer

to

location

of

the

amplifiers

but

to

the

normal

placement

of

the

four

microphones

used

for

true

4-channe}

recording.

The

usual

practice

is

to

have

two

microphones

placed

at

the

front

of

the

recording

Studio

and

two

more

at

the

rear.

When

installing

the

4-channel

playback

system,

speaker

placement

should

be

in

accordance

with

the

placement

of

the

microphones

during

recording.

Hence

"front"

and

"rear"

amplifiers.

The

front

amplifier

am-

plifies

the

signals

from

the

front,

left

and

right

tracks

(Tracks

#1

and

#3),

the

rear

amplifier

is

fed

with

the

signals

from

the

remaining

two

tracks

(Tracks

#2

and

#4).

When

playing

stereo

(2-channel

4-track)

tapes,

only

the

front

ampli-

fier

is

used

unless

your

system

incorporates

a

method

of

paralleling

the

amplifiers.

@

INSTALLATION

SUGGESTIONS

Do

not

operate

this

unit

near

heating

appliances

or

on

top

of

an

amplifier

where

amplifier

heat

would

contribute

to

a

rise

in

temperature.

Do

not

place

the

unit

where

it

will

be

exposed

to

direct

summer

sunlight.

Temper-

ature

extremes

will

not

only

cause

degradation

of

sound

quality

but

will

also

shorten

the

useful

operating

life

of

the

unit.

Avoid

temperatures

higher

than

100°F,

In

low

temperature

locations

lubricants

will

harden

and

satisfactory

opera-

tion

cannot

be

expected.

Operation

will

be

sluggish

and

an

overload

may

be

placed

on

the

drive

motors.

Avoid

temperatures

Tower

than

40°F,

High

humidity

locations

will

shorten

equipment

life

due

to

corrosion

and

possible

fungus

growth

on

printed

circuit

boards.

Should

you

be in

an

area

where

line

voltage

fluctuation

is

severe,

the

use

of

an

automatic

voltage

controller

is

recommended.

3-motor

decks

naturally

generate

more

heat

than

1-motor

units;

therefore,

it is

extremely

important

that

you

choose

a

level

space

which

affords

adequate

venti-

lation

in

the

placement

of

your

tape

deck.

This

is

especially

true

if

you

choose

to

operate

your

tape

deck

in

a

horizontal

position

(in

which

it

will

get

notice-

ably

warmer)

-

so

avoid

placement

on

thick

carpets

for

example.

@

SERVICE

Should

the

equipment

need

repair,

contact

the

dealer

where

it

was

purchased,

or

the

TEAC

authorized

service

center

nearest

you.

1)

The

warranty

period

is

described

in

the

enclosed

warranty

card.

Read

the

card

for

complete

details.

2)

For

repairs

after

expiration

of

the

warranty

period

a

service

charge

will

be

made

in

addition

to

the

price

of

repair

parts.

3)

If

only

repair

parts

are

-equired,

place

your

order

with

your

dealer

or

any

TEAC

authorized

service

center.

@

NOTE

Although

the

unit

may

still

be

under

the

warranty

period,

you

may

be

charged

for

repairs

made

necessary

by

misuse,

or

damage

incurred

as

a

result

of

improper

operation.

@

CHANGING

THE

POWER

LINE

SETTING

The

deck

is

adjusted

to

the

power

voltage

and

frequency

indicated

on

the

carton,

before

shipment

from

the

factory.

If

it

is

to

be

used

under

different

power

ratings,

the

tape

deck

must

be

reset

as

outlined

below:

Note:

Always

disconnect

the

power

cord

from

the

AC

outlet

before

resetting.

WHEN

VOLTAGE

IS

DIFFERENT

The

unit

may

be

set

for

100,

117,

200,

220

and

240

volts

AC.

To

change

the

voltage,

unscrew

the

fuse

in

the

center

of

the

voltage

selector

plug.

Pull

out

the

plug

and

reinsert

it

so

that

the

desired

voltage

shows

in

the

cutout.

Reinstall

the

fuse.

WHEN

FREQUENCY

IS

DIFFERENT

|.

Remove

the

power

cord

and

all

connecting

cables.

¢.

Take

off

tape

deck

rear

cover

by

removing

the

screws

holding

it.

3.

The

belt

linking

the

motor

pulley

and

flywheel

must

be

repositioned.

The

motor

pulley

on

the

unit

has

two

steps

and

difference

in

rotation

due

to

a

different

power

frequency

is

compensated

for

by

changing

the

belt

step

on

the

pulley.

Reposition

the

belt

with

your

fingers,

at

the

flywheel

first

and

then

at

the

pulley

when

switching

from

60Hz

to

50Hz,

or

the

pulley

first

and

then

the

flywheel

when

changing

from

50Hz

to

60Hz.

4.

After

repositioning

belt,

rotate

the

flywheel

several

turns

with

your

finger

to

make

sure

the

belt

is

correctly

seated

on

the

steps.

5.

The

frequency

selector

switch

inside

the

tape

deck

must

be

switched

to

the

frequency

of

the

power

line.

6.

Reinstall

the

rear

cover

of

tape

deck.

e

em

a

Mo

t

or

pu

]

]

e

y

Sacre

MORO.

«Motor

pul

]

ey

a

REAR

PANEL

CONNECTIONS

Ground

terminal

Fuse

2A

AC

power

jn

QUTPUT

terminals

LINE

IN

terminals

an

FP

Ww

MP

—

R

-

right

L

-

left

Before

making

connections

].

Set the

POWER

switch

button

to

OFF.

2.

Make

sure

the

power

line

voltage

and

frequency

to

be

used

matches

those

on

the

card

attached

to

the

deck.

If

they

do

not

match,

change

the

setting

after

carefully

reading

"changing

the

power

line

setting",

page

3.

CONNECTIONS

TO

AND

FROM

THE

2340/3340

10:;

LOCATION

OF

CONTROLS

.

Reel

turntables:

The

3340

...

10-1/2

inch

NAB

reel

capacity.

The

2340

...

7

inch

NAB

reel

capacity.

.

Index

counter:

4-digit,

push

button

reset.

.

Tension

arm:

Maintains

constant

tape

tension

even

during

start

and

stop

operation.

.

Guide

post:

Acts

in

conjunction

with

tension

arm

as

a

mechanical

filter,

smooths

out

any

irregularities

caused

by

sticking

tape

or

uneven

windings.

.

TAPE

SPEED

selector:

Provides

high

or

low

speed

operation

at

recording

or

playback.

The

3340

H:

15

ips

The

2340

4H:

7-1/2

ips

L:

7-1/2

ips

L:

3-3/4

ips

.

REEL

size

selector

(The

3340

only):

Selects

proper

back

tension

and

reel

torque

for

large

or

small

reels.

.

Head

housing:

Protects

the

farous

TEAC

hyperbolic

heads,

also

contains

the

head

function

selector

switches.

These

switches

make

possible

the

SIMUL-SYNC

function.

By

changing

the

head

function

for

each

track

from

record

to

monitor,

ful}

4-track

synchronization

is

possible.

Placing

the

head

function

selector

switch

in

the

SIMUL-SYNC

position

allows

immediate

monitoring

of

the

selected

track

for

synchronization

with

any

other

track.

NOTE:

To

prevent

switch

noise

from

damaging

your

tapes

or

speakers,

always

fully

retard

the

OUTPUT

level

control

for

the

head

or

channel

to

be

switched,

before

changing

the

switch

position.

Do

not

change

switch

position

while

tape

is

in

motion

(recording

or

playback).

.

Capstan:

Provides

constant

speed

drive

for

tape.

.

Pinch

roller:

Engages

tape

to

capstan

at

constant

pressure.

Shut-off

arm:

This

arm

automatically

shuts

off

the

tape

transport

when

tape

is

completely

rewound

or

if

the

tape

breaks

during

transport.

Switch

removes

power

when

it

comes

to

rest

at

horizontal

position.

ale

Les

14,

16.

V7

18,

1s

20.

OUTPUT

level

controls:

The

4

independent

output

controls

provide

complete

flexibility

during

play-

back

of

4

channel

tapes

or

SIMUL-SYNC

recordings.

They

also

control

the

output

volume

at

the

headphone

jacks.

_

MIC-LINE

recording

level

controls:

These

dual

concentric

knobs

control

the

recording

signal

levels

from

the

8

recording

inputs.

MIC/LINE

mixing

can

be

accomplished

by

varying

the

individual

input

levels.

VU

meters:

Provide

individual

channel

monitoring

during

record

or

playback.

VU

meter

placement

corresponds

to

the

usual

speaker

geometry

for

4

channel

playback.

MICROPHONE

jacks:

Front

right

and

left,

Rear

right

and

left.

Input

impedance

600

ohms.

.

MONITOR

select

switches:

These

switches

perform

a

triple

function,

they

allow

you

to

monitor

either

the

source

signal

before

it

is

recorded,

or

the

signal

from

the

tape

after

it

is

recorded.

In

addition

they

select

the

signal

(tape

or

source)

to

be

displayed

on

the

VU

meters

and

to

be

present

at

the

headphone

receptacle.

PHONE

selector

switch

and

jack:

Phone

jack

accepts

any

standard

3

conductor

headphone

plug,

headset

im-

pedance

is

8

ohms.

The

PHONE

selector

switch

permits

monitoring

of

front

channels,

rear

channels

or

front

and

rear

channels

combined.

RECORD

lights:

Illuminate

to

indicate

which

tracks

or

channels

are

in

the

recording

mode.

PLAY

button:

Selects

either

2-channel(stereo)

or

4-channel

operation

during

playback.

Switch

must

be

in

4-channel

position

for

4-channel

or

SIMUL-SYNC

recording.

In

2-channel

position

lower

2

VU

meter

lights

are

extinguished.

RECORD

button:

This

button

in

conjunction

with

the

forward

play

button

p

places

the

deck

in

the

recording

mode.

RECORD

MODE

switches:

Allow

selection

of

channel

or

channels

to

be

recorded.