Otari Mx-5050 bii series User manual

053-038

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\Q

C63

-

OYl

MX.5050B

}I

SERIES

PROFESSIONAL

RECORDERS

INSTRUCTION MANUAL

(TENTATIVE)

CAUTION

To

prevent

fire

or

shock

hazard:

Do

not expose this

appliance

to rain

or

moisture.

Do

not

remove

back

panel.

No

user-serviceable parts inside.

Refer servicing to

qualified

service personnel.

PLEASE

READ

THROUGH

SAFETY INSTRUCTIONS

ON

THE

SAFETY

INSTRUCTIONS

1.

Read

Instructions

--

All

the

safety

and

operating

instruc-

tions

should

be

read

before

the

appliance

is

operated.

2.

Retain

Instructions

-

The

safety

and

operating

instructions

should

be

retained

for

future

reference.

3.

Heed

Warnings

-

All

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to.

4.

Follow

Instructions

--

All

instructions

should

be

followed.

5.

Water

and

Moisture

--

The

appliance

should

not

be

used

near

water

-

for

example,

near

a

bathtub,

washbasin,

kitchen

sink,

laundry

tub

,

in

a

wet

basement,

or

near

a

swimming

pool,

etc.

6.

Carts

and

Stands

The

appliance

should

be

used

only

with

a

cart

or

stand

that

is

recommended

by

the

manufacturer.

7.

Ventilation

The

appliance

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

For

example,

the

appliance

should

not

be

situated

on

a

bed,

sofa,

rug,

or

similar

surface

that

may

block

the

ventilation

operatings;

or,

placed

in

a

built-in

installation,

such

as

a

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings.

8.

Heat

-

The

appliance

should

be

situated

away

from

near

sources

such

as

radiators,

heat

registers,

stoves,

or

other

appliances

(including

amplifiers)

that

produce

heat.

9.

Power

Sources

--

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

10.

Grounding

or

Polarization

-

Precautions

should

be

taken

so

that

the

grounding

or

polarization

means

of

an

appliance

are

not

defeated.

11.

Power-Cord

Protection

-

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

atten-

tion

to

cords

at

plugs.

Convenience

receptacles,

and

the

point

where

they

exit

from

the

appliance.

12.

Cleaning

-

The

appliance

should

be

cleaned

only

as

recom-

mended

by

the

manufacturer.

13.

Nonuse

Periods

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

14.

Object

and

Liquid

Entry

--

Care

should

be

taken

so

that

1

objects

do

not

fall

into

and

liquids

are

not

spilled

into

the

enclosure

through

openings.

15.

Damage

Requiring

Service

The

appliance

should

be

serv-

iced

by

qualified

service

personnel

when:

A.

The

power-supply

cord

or

the

plug

has

been

damaged;

or

B.

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

appliance;

or

c.

The

appliance

has

been

exposed

to

rain;

or

D.

The

appliance

does

not

appear

to

operate

normally

or

ex-

hibits

marked

change

in

performance;

or

E.

The

appliance

has

been

dropped,

or

the

enclosure

damaged.

16.

Servicing

--

The

user

should

not

attempt

to

service

the

appliance

beyond

that

described

in

the

operating

instruc-

tions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

ii

COMMUNICATION

WITH OTARI

FOR

SERVICE

INFORMATION

AND

PARTS

The

OTARI

PRODUCTS

are

manufactured

under

strict

quality

control

and

each

unit

is

carefully

tested

and

inspected

prior

to

shipment

from

our

factory.

If,

however,

some

adjustments

or

technical

support

become

neces-

sary,

replacement

parts

are

required,

or

technical

questions

arise,

please

contact

your

nearest

Otari

dealer

or

write

to:

OTARI

ELECTRIC

CO.,

LTD. OTARI

CORPORATION

4-29-18,

Minami

Ogikubo,

2

Davis

Drive,

Belmont,

Suginami-ku,

Tokyo,

167,

Japan

California

94002,

U.S.A.

Phone:

(03)

333-9631

Phone:

(415)

592-8311

Telex:

J26604

OTRDENKI

Telex:

25

9103764890

OTARI

ELECTRIC

DEUTSCHLAND

GmbH.

OTARI SINGAPORE

PTE.,

LTD.

Gielenstrasse

9,

4040

Neuss

1

Unit

5350,

2nd

floor,

Woh

Hup

F.R.

Germany

Complex,

5001,

Beach

Road,

Phone:

02101-274011

Singapore,

0719

Telex:

41

8517691

OTEL

D

Phone:

294-5370

Telex:

87

36935

RS369350TARI

OTARI

ELECTRIC

(UK)

LTD.

Herschel

Industrial

Centre,

Church

Street,

Slough

SLI

lEL,

Berkshire,

United

Kingdom

Phone:

(0753)

38261-2

Telex:

849453

OTARI

G

Another

part

of

Otari's

continuous

technical

support

program

for

our

products,

is

the

continuous

revision

of

manuals

as

the

equip-

ment

is

improved

or

modified.

In

order

for

you

to

receive

our

information

and

service

applicable

to

your

requirements,

and

for

the

technical

support

to

function

properly,

please

include

the

following

information,

most

of

which

can

be

obtained

from

the

name

plate

on

the

equipment

in

all

correspondences.

1.

Model

Number

2.

Serial

Number

3.

Date

of

purchase

4.

Name

and

address

of

dealer

from

whom

machine

was

purchased

5.

Power

requirements

(voltage

and

frequency)

of

the

machine

6.

Manual

number

to

which

you

are

referring

iii

PAGE

1-1

1-2

1-3

1-4

1-5

2-1

2-2

2-4

2-7

2-8

3-1

3-9

3-10

3-11

3-12

3-13

3-14

4-1

SECTION

I

1.1

1.1.1

1.1.

2

1.1.

3

1.2

1.3

1.4

1.5

II

2.1

2.2

2.3

2.4

2.5

2.5.1

2.5.2

III

3.1

3.2

3.2.1

3.2.2

3.2.3

3.2

.4

3.2.5

3.2.6

3.2.

7

IV

4.1

TABLE

OF

CONTENTS

TOPIC

GENERAL

INFORMATION

System

Description

Tape

Transport

Record/Reproduce

Electronics

Head

Assemblies

Standard

Accessories

Optional

Accessories

Service

and

Replacement

Parts

Specifications

INSTALLATION

Unpacking

and

Inspection

Location

and

Environment

Dimensions

Standard

Switch

position

on

Shipment

Power

and

Signal

Connections

AC

Power

Connections

Signal

Connections

OPERATION

Controls

and

Indicators

Operating

Information

Use

of

the

Reel

Hold

Down

Knobs

Pre-operating

Procedure

Reproduction

Normal

Recording

with

Selective

Production

Fast

Winding

Editing

and

Splicing

Tape

PREVENTIVE MAINTENANCE

AND

ADJUSTMENTS

Test

and

Maintenance

Equipment

Requirements

PAGE

4-2

4-3

4-4

4-5

4-6

5-1

5-3

5-5

SECTION

4.2

4.2.1

4.2.2

4.2.3

4.3

4.3.1

4.3.2

4.3.3

V

5.1

5.2

5.3

VI

VII

VIII

TOPIC

Preventive

Maintenance

Cleaning

Demagnetizing

Lubrication

Electronic

Alignment

Record

Bias

Adjustment

Record

Level

Adjustment

Record

Equalization

Adjustment

SPEED CONVERSION

Speed

Conversion

Procedure

Access

to

the

Amplifier

Pattern

Layout

P.C.B.

ASSEMBLIES

AND

PARTS

LISTS

EXPLODED

VIEW

DRAWINGS

AND

PARTS

LISTS

CIRCUIT

DIAGRAMS

SECTION

I.

GENERAL

INFORMATION

The

MXSOSOB

Series

Recorders

are

professional

quality

two-speed

audio

tape

recorder/reproducers

designed

for

optimum

performance

and

long

life.

The

MXSOSOB

units

use

1/4-inch

tape

and

are

available

in

4

dif-

ferent

models.

The

different

models,

and

their

application,

are

determined

by

the

head

format.

Table

1-1

Model

Head

Format

Speed

Tape

B2HD

2-track,

2-channel

*lS

and

7-1/2

IPS

1/4

inch

B4HD

4-track,

2-channel

BFHD

Full

track,

Mono

B2HD

DIN

2-track,

2-channel

DIN

*

The

MXSOSOB

is

factory

set

to

operate

at

tape

speeds

of

IS

and

7-1/2

ips.

By

users

conversion

the

unit

can

be

reset

to

operate

at

7-1/2

and

3-3/4

ips.

Refer

to

page

S-l.

1.1

SYSTEM

DESCRIPTION

Among

the

many

professional

features

of

the

MXSOSOB

Series

are:

selective

reproduction,

motion

sensing,

an

edit

control

that

permits

spilling,

an

adjustable

cueing

control

for

audible

moni-

toring

in

the

fast-forward

and

rewind

modes,

a

built-in

two

frequency

low

distortion

test

and

cue-tone

oscillator,

a

com-

puterized

elapsed

time

indicator

with

a

digital

LED

display,

front

adjustable

record

bias,

equalization,

and

level

controls,

active

balanced

input

and

output

circuits,

a

reference

flux

level

indicator

on

the

front

amplifier

panel,

a

standard

reference

level

output

switch,

separate

line

and

microphone

input

level

controls

for

each

channel,

switches

for

recording

levels,

equal-

ization,

microphone,

and

output

level

attenuators,

play-back

equalization

pots

for

each

speed,

a

memory

stop

for

automatically

stopping

the

tape

in

the

rewind

mode

at

a

predetermined

position,

ceramic

tape

guides,

big

head

housing,

lower

transport

noise,

and

improved

specifications

for

distortion,

erase

effect,

and

signal

and

noise

ratio.

1-1

_ _

1.1.1

TAPE

TRANSPORT

All

components

of

the

tape

transport

system

are

mounted

on

a

rigid

aluminum

frame

for

stability.

The

transport

design

in-

corporates

two

6-pole

induction

motors

for

the

reels

and

a

3-

speed

DC

servo

motor

(Direct

drive)

for

the

capstan.

Speed

selection

is

made

by

a

front

panel

push-button

switch

which

also

switches

the

equalizer.

The

transport

accommodates

tape

reels

of

10-1/2

inches,

7

inches,

and

5

inches

in

diameter

with

NAB

or

EIA

hub

configurations.

A

solenoid-actuated

tape

lifter

lifts

the

tape

away

from

the

heads

in

the

fast

forward

and

rewind

modes,

in

addition

to

the

stop

mode,

to

increase

head

and

tape

life.

In

addition

to

the

editing

controls,

a

tape-splicing

block

(Fig.

3-3)

mounted

on

the

head

cover

holds

the

tape

for

ease

of

editing.

Momentary

contact

push-button

switches

on

the

transport

are

used

to

select

operational

modes:

record,

play,

stop,

rewind,

and

fast

forward.

These

modes

may

be

controlled

from

a

remote

loca-

tion

by

means

of

an

optional

remote

control

unit

(page

1-5).

-I--t---TAPE

TRANSPORT

-+-+---

RECORD/REPRODUCE

"21

00

0

00

0

~

$

~D~D~~D~D~~~~U.~~~~-=~~

~~~

ELECTRONICS

Fig.

1-1

MX-5050B

Major

Components

1-2

1.1.2

RECORD/REPRODUCE ELECTRONICS

FEATURES

(1)

The

RECORD/REPRODUCE

amplifier

unit

is

connected

to

the

transport

unit

only

by

the

connectors

and

therefore

can

be

easily

removed

for

ease

in

servicing.

(2)

This

machine

contains

a

SEL.

REP.

function

for

overdubbing:

for

example,

SOUND

WITH

SOUND,

SOUND

ON

SOUND,

carried

out

by

the

PUNCH-IN

and

PUNCH-OUT

functions

of

the

transport

control.

(3)

This

machine

provides

both

NAB

and

IEC

equalizers,

switchable

on

the

rear

panel.

However,

when

the

equalizer

position

is

changed,

fine

tuning

the

record

and

reproduce

equalizer

adjustment

controller

is

necessary.

(4)

In

order

to

give

optimum

performance

for

different

types

of

recording

tapes,

record

bias,

level,

and

equalization

con-

trols

on

the

front

panel

can

be

adjusted

to

meet

any

requirements.

(5)

To

improve

the

signal

to

noise

ratio

and

increase

the

head

room,

the

record/reproduce

electronics

have

been

designed

with

a

high-fidelity

amplifier.

1.1.3

HEAD

ASSEMBLIES

As

viewed

from

the

front

of

the

recorder,

the

configuration

of

the

head

assembly

of

each

model

MX-5050B

is

shown

in

Table

1-2.

Table

1-2

Head

Assembly

Configuration

Model

No.

Head

Structure

Record

Head

Hl

Base

H2

Playback

H3

Record

H4

Playback

MX-5050B-2HD

2T,

2CH

4T,

2CH

2T,

2CH

2T,

2CH

2T,

2CH

Stereo

MX-5050B-4HD

4T,

2CH

2T,

2CH

4T,

2CH

4T,

2CH

4T,

2CH

Stereo

MX-5050B-FHD

FT,

MONO

2T,

2CH

FT,

MONO

FT,

MONO

FT

Monoaural

MX-5050B-2HD

DIN

2T,

2CH

DIN

4T,

2CH

2T,

2CH

2T,

2CH

2T,

2CH

Stereo

1-3

NOTE:

The

head

assemblies

of

these

models

contain

two

playback

head

stacks.

A

head

change-over

switch

located

in

the

head

assembly

permits

selection

of

either

head

stack.

Fig.

1-2

Head

Arrangement

1.2

STANDARD

ACCESSORIES

The

MX-SOSOB

is

supplied

with

the

standard

accessories

listed

below.

STANDARD

ACCESSORIES (*ZA-12W)

l.

NAB

Hub

Reel

Hold

Down

Knob

KWOHO

2

pcs.

2.

NAB

Empty

Reel

10-1/2

inch

ZA-SIA

1

pc.

3.

Reel

Adjusting

Disc

(Shim)**

KWOCOOS

2

pcs.

4 .

Instruction

Manual

OS3-038

1

pc.

S.

Power

Cord

PZ9D003

1

pc.

*

This

part

number

includes

all

parts

described

in

numbers

1

through

S.

**

The

reel-adjusting

disc

(shim)

is

placed

between

a

metal

reel

and

the

turntable

to

compensate

for

the

difference

in

thickness

between

metal

reels

and

plastic

reels.

1.3

OPTIONAL ACCESSORIES

Optional

accessories

available

are

listed

below.

1-4

OPTIONAL ACCESSORIES

1.

Remote

Control

unit

CB-102

2.

Cleaning

Kit

ZA-S1B

3.

Balanced

Input

Transformer

Ass'y

ZA-S3T

4.

Balanced

Output

Transformer

Ass'y

ZA-S3S

1.4

SERVICE

AND

REPLACEMENT

PARTS

For

service

and

replacement

parts,

or

for

technical

support,

please

contact

your

nearest

service

center,

Otari

dealer,

or

write

directly

to

Otari.

(See

page

iii

for

complete

addresses.)

1.S

SPECIFICATIONS

The

specifications

of

the

MX-SOSOB

Series

are

as

listed

in

Table

1-3.

NOTE:

Specifications

are

based

on

tape

speeds

of

7-1/2

and

lS

ips.

Specifications,

although

obtainable

when

serviced

by

qualified

service

personnel,

are

not

guaranteed

when

using

lower

tape

speeds.

Table

1-3

Specifications

of

the

MX-S050B

Series

Tape

Width

and

Tracks

Tape

Speeds

Reel

Sizes

1/4

inch

(6.3

mm)

tape:

2

tracks

(0.079

in.

or

2.0

mm

track

width)

4

tracks

(0.040

in.

or

1.0

mm

track

width)

Full

tracks

(0.24

in.

or

6.1

mm

track

width)

7-1/2

and

lS

ips

(19

and

38

cm/sec)

or

3-3/4

and

7-1/2

ips

(9.5

and

19

cm/sec)

Maximum

deviation:

±

0.2

%

measured

with

1.S

mil

(0.038

mm)

tape.

7

inch

or

10-1/2

inch

plastic

or

metal,

EIA

or

NAB.

l-S

Heads

Motors:

Capstan

Reels

Operating

Position

Power

Requirements

Operating

Environment

Storage

Environment

Dimensions

and

Weight

Mounting

Standard

Accessories

Model

MX-5050B-2HD:

Half-track

configuration

Model

MX-5050B-4HD:

Quarter-track

configuration

Model

MX-5050B-FHD:

Full-track

configuration

Model

MX-5050B-2HD

DIN:

Half-track

configuration

Four

head

stacks:

MX-5050B-2:

2T

erase,

4T

reproduce,

2T

record,

2T

reproduce.

MX-5050B-4:

4T

erase,

2T

reproduce,

4T

record,

4T

reproduce.

MX-5050B-F:

FT

erase,

2T

reproduce,

FT

record,

FT

reproduce.

MX-5050B-2

DIN:

2T DIN

erase

, 4T

reproduce,

2T

record,

2T

reproduce.

DC

servo

controlled

motor.

(Pitch

control

limits

± 7 % )

Two

induction

torque

motors.

Vertical

or

horizontal.

50/60

Hz,

100/117/220/240

V ±

10

%

Single

phase

AC,

100

W

40°

to

104°F

(5°

to

40°C)

20

to

80 %

RH

Height

527

mm

(20.7

inch)

Width

430

mm

(16.9

inch)

Depth

225

mm

(

8.8

inch)

24

kgs

(53

lbs.

)

Dark

grey

leather-finished

cabinet.

One

empty

10-1/2

inch

NAB

reel,

two

NAB

reel

hold

down

knobs,

two

NAB

reel-

adjusting

discs

(shims),

and

one

instruction

manual,

one

power

cord.

1-6

Remote

Control

Unit

Connectors

Inputs:

Line

Microphone

Outputs:

Line

Headphone

Equalization

Frequency

Response

Signal

to

Noise

Ratio

An

optional

remote

control

unit

is

used

to

control

the

record,

play,

stop,

rewind,

and

fast

forward

modes.

Line

input,

line

output,

and

microphone,

standard

three-pin

XLR.

Minimum

-15

dBm,

active

balanced

10

k

ohms.

(Floating

type).

Minimum

-15

dBm,

balanced

10

k

ohms

with

optional

transformer.

Minimum

-70

dBm,

active

balanced,

adapt-

able

microphone's

impedance:

150

to

10

k

ohms.

The

microphone

attenuator

switch

may

be

set

to

the

0

dB,

-20

dB,

or

Off

position

depending

on

the

circum-

stances.

Level:

+4 dBm

or

-10

dBm,

rear

panel

switch

selectable.

Active

balanced

(Floating

type)

,

Source

impedance:

5

ohms.

Load

impedance:

More

than

600

ohms.

Maximum

line

output:

+27

dBs

with

a

600

ohm

load.

Level:

-24

dBm

with

an

8

ohm

load.

Load

impedance:

8

ohms

or

greater.

NAB

or

IEC

for

3-3/4,

7-1/2,

and

15

ips.

Switchable

on

the

rear

panel,

but

calibration

is

necessary.

15

ips:

30

Hz

to

20

kHz

± 2 dB

7-1/2

ips:

20

Hz

to

18

kHz

± 2 dB

3-3/4

ips:

20

Hz

to

10

kHz

± 2

dB

Specifications

refer

to

a 1

kHz

refer-

ence

when

recorded

on

3M

226.

Over-all

measured

at

the

level

of

520

nWb/m.

1-7

NAB

Equalization

Tape

Speed

2

Track

4

Track

Full

Track

Weighted

Unweighted

Weighted

Unweighted

Weighted

Unweighted

15

ips

66

dB

64

dB

62

dB

60

dB

68

dB

66

dB

7-1/2

ips

68

dB

66

dB

63

dB

61

dB

68

dB

66

dB

3-3/4

ips

66

dB

64

dB

62

dB

60

dB

66

dB

64

dB

lEC

Equalization

Tape

Speed

I

2

Track

4

Track

Full

Track

Weighted

Unweighted

Weighted

Unweighted

Weighted

Unweighted

15

ips

66

dB

62

dB

62

dB

58

dB

62

dB

60

dB

7-1/2

ips

64

dB

62

dB

62

dB

58

dB

62

dB

60

dB

3-3/4

ips

64

dB

62

dB

62

dB

58

dB

62

dB

60

dB

Crosstalk

Wow

and

Flutter

Distortion

Erase

Efficiency

With

a 1

kHz

signal

on

adjacent

tracks:

2

tracks:

greater

than

55

dB

4

tracks:

greater

than

55

dB

(NAB

weighted)

:

Tape

Speed

15

ips

less

than

0.06

%

7-1/2

ips

less

than

0.08

%

3-3/4

ips

less

than

0.12

%

Less

than

0.5%

at

1

kHz

at

250

nWb/m.

Greater

than

75

dB.

1-8

Test

Oscillator

Frequency

Bias

and

Erase

Frequency

Peak

Indicator

Record

Level

(SRL)

Nominal

1 kHz

and

10

kHz

133

kHz

Trigger

level:

520

nWb/m (9

dB

above

Ampex

operating

level)

recorded

flux

level.

3-position

switchable

on

the

rear

panel.

Position

Flux

Relative

Level

Test

Tape

Recording

tape

to

be

used

Low

185

nWb/m* 0

dB

Ampex

Operat-

ing

Level

Scotch

177,

Ampex

641

Medium

250

nWb/m*

+2.6

dB

MRL

NAB

Reference

Flux

Scotch

206,

207, 226,

250

Ampex

406,

407,

456

High

320

nWb/m**

+3.8

dB BASF

or

MRL

IEC

Standard

IEC

Equaliza-

tion

*

Short

circuit

flux

**

Open

circuit

flux

NOTES:

1.

Signal

to

noise

ratio

is

measured

with

respect

to

a

recorded

level

of

520

nWb/m

to

biased

tape

noise

when

using

Scotch

226

magnetic

tape.

Unweighted:

Using

a 30

to

18

kHz

RC

filter

to

atten-

uate

noise

outside

the

audio

spectrum.

Weighted

using

an

NAB

or

ASA

"A"

weighting

filter

and

a 1 kHz

reference.

2.

Otari

reserves

the

right

to

change

specifications

without

notice

and/or

obligation.

1-9

SECTION

II.

INSTALLATION

This

section

of

the

manual

provides

information

on

unpacking

and

inspection,

location

and

environment,

and

power

and

signal

connections.

2.1

UNPACKING

AND

INSPECTION

The

MX-5050B

Series

system

is

shipped

from

the

factory

in

a

single

cardboard

packing

case.

Upon

receipt,

examine

the

case

for

any

signs

of

damage.

Unpack

the

equipment

and

inspect

for

any

signs

of

damage.

Use

great

care

when

unpacking

the

equipment

and

remov-

ing

packing

materials

to

prevent

damage

to

critical

components

such

as

the

capstan,

head

assembly,

and

tension

arms.

Referring

to

the

lists

in

Secs.

1.2

and

1.3

(as

applicable),

veri-

fy

that

all

items

have

been

received.

Report

any

shortage

or

damage

to

the

carrier

and

your

local

Otari

dealer.

Save

the

packing

case

for

possible

reshipment.

Other

packaging

may

cause

damage

during

transportation

and

will

void

the

warranty.

Please

refer

to

the

illustration

which

is

attached

to

flap

of

the

packing

box

regarding

the

repacking

method.

2.2

LOCATION

AND

ENVIRONMENT

The

area

chosen

for

operation

should

be

adequately

ventilated

and

dust

free.

Since

recording

is

by

an

electromagnetic

process,

it

is

possible

that

strong

electromagnetic

fields

may

affect

the

system

adversely.

Common

sources

of

interference

are

fluctuating

loads

on

nearby

high-voltage

lines,

heavy

duty

transformers,

and

transmitting

equipment.

It

is

recommended

that

the

equipment

be

used

in

an

environment

where

the

surrounding

temperature

does

not

exceed

limits

of

40°

to

104°F

(5°

to

40°C),

with

the

relative

humidity

between

20

and

80%.

Allow

at

least

a 4

inch

(10

cm)

clearance

behind

the

rear-

panel

ventilation

grill.

2-1

E

~

Ln

.c

u

c:

N

•

2.3

DIMENSIONS

Equipment

dimensions

of

the

MX-5050B

Series

are

shown

In

Fig.

2-1.

o.7

inch

1---------21

. 3 inch (541

mm)

---------i

'0

. 2

;",h

1258

mm1l

8.1

inch

Iv~

L.:..---

'6.9

;ooh

'430

mml--=:.j

f--------------j.

~

1.

01

(206

mm)

0 -

Fig.

2-1

Equipment

Dimensions

2.4

STANDARD

SWITCH

POSITION

ON

SHIPMENT

Either

the

NAB

standard

or

the

IEC

standard

of

equalization,

recording

level,

etc.

may

be

used

with

the

Otari

MX-5050B

series.

These

units

have

been

provided

with

a

slide

switch

on

the

back

panel

which

selects

one

of

these

two

standards;

to

change

stand-

ards,

merely

slide

the

switch

to

the

desired

position.

2-2

(18

mm)

+-----.-

E

Ln

!E

.c

u

.

!:

M

ci

N

C5

~rilij~

~

[-

J

i

~

(

CAUTION

)

I

1--

~

-<iAOUNo-REMOT

e_

:

1!]0

~

1§fr91~[§J

ll;)

CH'

C

H'

C

H'

CH'

_L

I

NE

OUTI'UT_

_

UNEINPUT_

_Ml

e

IHPUT

_

$ $

_OUTPUT

LEYEloEOuALIZA

TI

ON

LOW

HIGH

lee

!tAB

OJ

REf

fLUX

Mle

ATTENUATOR_

16

5

250

320

G.lB

-2008

Of"F

Op

[}l

e:>

E9

1 2 3 4

Fig.

2-2(a)

Standard

Switch

Position

on

Shipment

(NAB)

~

~GIBJ~

~

[-

6

~

(

CA

UTION

I 1

--

e;)

_ GRO

UND_REMOTE_

) :

[i]0

~

) C

H'

C

H'

_LINE

OUTPU1_

~r91~[§J

~

C

H'

C

H'

CH'

CH

'

_

LINE

INPU

T _

~

IC

IHPUT_

$ $

_OUTPUT

LEVElcEOUALIZATION

LOW

HIGH

lEe

NAB

[iii

~

REf

FLUX

165

250

320

OJ

Mle

ATTEHUATOR_

Oof

8 -2OIIt

OFF

c;II

e:>

E9

1 2 3 4

Fig.

2-2(b)

Standard

Switch

Position

on

Shipment

(IEC)

Table

2-1

Standard

Switch

position

on

Shipment

Switch

Ref.

No.

Type

NAB

IEC

OUTPUT

LEVEL 1

HIGH

EQUALIZER 2

NAB

IEC

RECORD

LEVEL 3 M H

MIC.

ATT

4 OFF OFF

2-3

2.5

POWER

AND

SIGNAL CONNECTION

All

power

and

signal

connections

are

made

on

the

connector

panel

of

the

MX-5050B.

Table

2-2

shows

the

function

of

each

connector

and

component

on

the

rear

panel.

Table

2-2

Rear

Connector

Panel

3 4 5 6 7 8

2--;-

-

---.

_

OU

TP

UT LE

'I

ELc

EOU

Al.tZATION

___________

AfF

FLUX

________

MI

C ATT EHUA

TO

A_

LOW'

HI

GH

lEe

NAB

185

250

320

0.18

-2(WB

OF

F

12

11

10 9

Index

No.

Name

Function

1

REMOTE

Control

Connector

Remote

control

connector

for

use

with

the

optional

remote

control

unit

to

control

the

record,

play,

stop,

rewind,

and

fast

forward

modes.

2

GROUND

Terminal

Auxiliary

ground

connection

for

use

with

equipment

not

connected

to

a

common

AC

ground.

3

AC

Power

Connector

Three-contacts

socket

for

connection

to

AC

power

and

ground.

4

Label

Indicates

model

number,

production

lot

number

(serial

number),

power

requirement,

and

place

of

manu-

facture.

2-4

OTARI MX-5050 BII Series User manual

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