Tascam 122mkmiii User manual

TASCA

T,

EAC

Professional

Division

122MKmi

112RMKH/112MKH

Stereo Cassette Deck

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Note

for

U.K. Customers

THE

APPUANCE

CONFORMS WITH

EEC

DIREC-

TIVE

87/308/EEC

REGARDING

INTERFERENCE

SUPPRESSION

CONFORME

AL

D.M. 13 APRI

LE

1989

DIRETTIVA

CEE/87/308

Bescheinigung des

Herstellers/lmporteurs

Hiermit

wird

bescheinigt,

daB

der

/

die/das

Slereo Kassetten-Rekorder 122 MKIII/112R

MKI1J112

MKII

(Geral, Typ.

Bezeichnungj

in

Ubereinstimmung

mit

den

Bestimmungen

der

AMTSBLATT

163/1984,

VFG

1045/1984,

VFG

104611984

(AmlsblallverlOgung)

funk-entst6rt

is\,

Der

Deutschen

Bundespost

wurde

das

Inverkehrbringen

dieses

Gerates

angezeigt

und

die

Berechtigung

zur

Uber-

prufung der Serie auf Einhaltung

der

Beslimmungen eingerllumt.

TEAC CORPORATION

Name

des

HersleUerslimporleurs

For

CANADA

AC POWER CORD CONNECTION

CAUTION:

TO

PREVENT

ELECTRIC

SHOCK,

MATCH

WIDE

BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

Due

to

the

variety

of

plugs

being

used

in the U.K., this

unit is sold without an

AC

plug.

Please

request your

dealer

to install the correct

plug

to match the mains

power

outlet

where

your

unit will

be

used as per these instructions.

IMPORTANT

The wires in this mains lead are coloured in

accordance with the following code:

BLUE: NEUTRAL

BROWN:

LIVE

As

the colours of the wires in the mains lead of

this apparatus may not correspond with the

coloured markings identifying the terminal

in

your

plug, proceed as follows:

The wire which is coloured blue must be

connected to the terminal which is marked with

the letter N or coloured BLACK. The wire which

is coloured BROWN must be connected to the

terminal which is marked with the letter L

or

coloured RED.

CORDE DE CONNEXION CA

ATTENTION:

POUR

EVITER

LES

CHOCS

ELECTRIOUES,

INTRODUJRE LA LAME LA PLUS

LARGE

DE LA

FICHE DANS

LA

BORNE CORRESPONDANTE

DE

LA

PRISE ET POUSSER JUSOU'AU FOND.

CAUTION

:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK,

DO

NOT

REMOVE

COVER

(OR

BACK).

NO

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVIGING

TO

QUALIFIED

SERVICE

PERSONNEL.

The

lightning

flash

with

arrowhead

symbol,

within

an

equilateral

triangle,

is

intended

to

alert

the

user

to

the

presence

of

un

insulated

"dangerous

voltage"

within

the

product's

enclosure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons

.

The

exclamation

point

within

an

equilateral

triangle

is

intended

to

alert

the

user

to

the

presence

of

important

operating

and

maintenance

(servicing)

instructions

in

the

literature

accompanying

the

appliance.

This

appliance

has

a

serial

number

located

on

the

rear

panel.

Please

record

the

model

number

and

serial

number

and

retain

them

for

your

records.

Model

number

______

_

I

Serial

number

WARNING:

TO

PREVENT

FIRE

OR

SHOCK

HAZARD,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

2

Introduction

This manual covers the 122

MKIIL,

112R MKII, and 112

MKll

Your new T

ASCAM

deck is a professional rack-mount 4-

track, 2-channel

recorder/reproducer

designed

to

offer

outstanding audio

performance

and convenient features.

Speed in operation is

enhanced

by

CPS

(Computomatic

Program Search) (112R MKII only), 2-point Autolocator,

and Return-to-zero. Dolby*

HX

Pro

is provided to improve

high frequency response. The bias is automatically set to its

optimum value for each tape in use (except for the 122

MKIII). With the 122 MKIII, a built-in oscillator (400 Hz

and

10

kHz) along with individual Bias and Level trimmers

can be used to maximize performance with any tapes.

The

3-head design

of

122 MKIlI and 112R MKlI produces real-

time, off-tape monitoring.

We

suggest that you read this manual thoroughly

before using the machine.

Even

though a quick glance

will get you going, careful study will ensure that

misunderstanding won't slow you down.

Table

of

Contents

Note

for

U.K. Customers

...............................................................

2

Safety Instructions

..................................................

_

........................

3

Introduction

....................................................

.

.....................................

4

Optional Accessories

.....................................................................

4

Controls and

Indicators

.............................................................

5-9

Basic Operation

.........................................

.

.....................................

10

Recording

......

....

.......

.

................................

......l0

Playback

..........

.

........

..

..........

...........................

l0

Erasing a tape

.......

.

..............

.

.........................

... 10

Special Features

.............................................

_

...........

_

...........

11-14

Autolocator

functions

.........................................

!1

Repeat play

...............

.

................

.

.....................

12

Recording a blank space between programs.............

!3

Using CPS (Computomatic Program Search)

(ll2R

MKII only).......

..................

.

.........

.

.........

!3

Bias and Recording

level

Calibration

(122 MKIII only)

........................................................................

.

......

.

15

Dolby

HX

PRO

..................................................................................

16

Care and Maintenance

..................................................................

16

Specifications

.............................................................................

17

-18

Block Diagrams

..........................................................................

19-20

* Dolby noise reduction and HX

PRO

headroom extension

manufactured

under

license

from

Dolby

Laboratories

Licensing Corporation. HX

PRO

originated by Bang and

OIufsen. "Dolby", the double-D symbol "DO" and "HX PRO"

are trademarks

of

Dolby Laboratiries Lisensing Corporation.

Optional Accessories

• RC-134 Remote

Control

Unit

(for

122 MKIIII112 MKII)

rt

C bl I

a e engl :

5 mf15

ft

TASCAM

IIC-IJ4AEMOn:~UHCT

DO

0

r:Jl

O

fr]O

fJ

..

.....

• RC-112R Remote

Control

Unit

(for

112R MKII)

IT

Cable lenglh'

5

ml15ft

E

TASCAM

R

C-t

12

RREMOTE

COHmOL

UN

IT

-~

~

D[[l1

D

-

DO 0

[~

[]

,""m

• LA-112

Balanced

Amp/Connector

Kit

(for

112

MKI1I112 RMKII)

• PB-32

Series

Patch

Bay

• Head

Demagnetizer

•

HC-1

Head Cleaner & RC-1

Rubber

Cleaner

(U.S. Only)

• TZ-261

Cleaning

Kit

(Except

U.S.)

4

Controls and Indicators

1 2 10 11

12

14

122MKIII

o

TASCAM

122MKm

o

o o

3 4 5 6 7 8

9192125272627

2220

1315

16 17 18

10

11 12 14

112RMKII

o

TASCAM

112RMKD o

~

~;-

vu

~~===~

0 o I

3 4 5 6 7 8

9192123

24222013

15

16 17 18

1 2 10 11 12 14

112MKII

0

TASCAM

112MKD 0

~

o

o~

0

cTI)

-

0 0

3 4 5 6 7 8 9

1921

22

20 13 15 16 17 18

5

1.

POWER:

Switches power on to the unit.

Each time you turn on the deck, the last on/off

status

of the ADJUST switch (122

MKIII

only)

and

Auto

Reverse ( C--.J /

~

) switch (112R

MKII

only)

and

the

last

play/record

direction

as

set

with

the

DIRECTION

switch (112R

MKII

only)

are

retrieved

from

a backup memory.

2.

EJECT:

Opens the cassette compartment.

3.

PITCH CONT : Provides about a plus

or

minus

12

%

variation

to

the tape speed

in

both Play and Record modes.

Unless you use the function intentionally, make sure that

the knob is at its

OFF

position for the tape

nornlal speed (1-7/8 i.p.s.

or

4.8 cm/sec.). to roll at

4.

REW : Winds the tape at high speed

in

r

pressed during Play Pause, enables reverse cueing.

everse.

If

5.

F.FWD : Winds the tape at high speed

in

the forward

direction.

If

pressed during Play Pause, enables the forward

cueing.

6.

STOP : Stops all tape motion.

7.

PLAY:

Starts

playback.

If

pressed

together

with

RECORD, starts recording. If pressed during Record Pause,

resumes recording.

8.

PAUSE:

Temporarily

stops

play

or

recording;

to

resume the function interrupted, press PLAY.

If

pressed

together with

RECORD,

activates Record Ready mode,

allowing you to start recording by pressing PLAY only.

9.

RECORD: Starts recording when pressed together with

PLAY.

10. Tape

Counter:

Displays the distance from a zero

reference point, selected by pressing RESET (-99 M 59 S

to 99 M 59 S with the 122 MKIII and 112R MKlI ;

or

00

to 99 99 with the I

12

MKII).

A

type

of

tape

in use

(NORMAL,

Cr02

or

METAL)

is

indicated on the right hand side

of

the tape counter, and the

monitor

source

too-"INPUT"

lights unless tape signal

is

feeding the front PHONES and rear OUTPUT.

NOTE

122

MKIII

and

112R

MKII

: The

tape

counter

is

not a

clock.

Its

reading

depends

on the

tape

length, relative

tape

packs

on both

reels

and

other

mechanical

factors.

Use

a watch to

measure

the correct length

of

particular program.

Discrepancy

between

measurements

on

the

tape

counter

and

a clock (from beginning to end, one-way

run) .

Normal/Cr02

Metal

C-30

+3

min. 00

sec.

to

4

min

. 00

sec.

-

C-46

+1

min.30

sec.

to

2

minA5

sec.

+2

min.OO

sec.to

3 min.15

sec.

C-60

-45

sec

. to +30 sec. o

min.OO

sec

.

to

+1 min.15

sec

.

C-90

-1

min.30

sec.

to

-30

sec.

-1

min.15

sec.

to

omin. 00

sec

.

C·30/46 measurements made with narrow hub cassettes.

11. INPUTS,

Land

R : Allow individual control

of

both

channel levels.

122 MKIII : Both controls are geared together to allow

simultaneous

adjustment

of

the record level

of

both

channels. Each channel

can

be adjusted independently

by

holding

one

knob and turning the other.

12. VU

meters

:

Indicate

input

or

tape signal levels

depending on the transport mode and the MONITOR switch

selling.

13.

MONITOR:

Setting to

INPUT

routes the input

signal

to

the PHONES and

OUTPUT

jacks, whatever the

transport

mode

.

If

set

to

AUTO, the input signal

can

be

monitored in Record Pause (Ready) mode, and the tape

signal while recording (off-tape monitoring)

or

playing.

The VU meters also switch the same way.

The 112 MKII does not provide off-tape monitoring; you']]

hear the input signal instead while recording

is

taking place.

14.

OUTPUT:

Adjusts

the signal level sent to the

OUTPUT

jacks

on

the rear panel.

6

SAFETY

INSTRUCTIONS

CAUTION:

• Read

all

of

th8$e instructions.

• Save these instructions for later use.

• Follow all warnings and instructions marked

on

the

audio equipment.

1.

Read Instructions -All the safety and operating

instructions

should be read before

the

appliance

is

operated.

2. Retain Instructions -

The

safety

and

operating

instructions

should be retained for

,uture

reference.

3.

Heed Warnings -All warnings

on

the appliance

and

in

the

operating instructions should

be

adhered to.

4.

Follow Instructions -All operating

and

use instructions

should be followed .

5. Water

and

Moisture -

The

appliance should

not

be used

near

water

-for example, near

abathtub,

washbowl,

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

.

6A.

An appliance and

cart

combination

should

be

moved with

care. Quick stops, excessive force, and uneven surfaces may

cause

the

app

"li

ance and

cart

combination

to

overturn.

7. Wall

or

Ceiling

Mounting

-

The

appliance should be

mount-

ed

to

a wall

or

ceiling only as

recommended

by

the

manu-

facturer.

8. Ventilation -The appliance

should

be

situated

so

that

its

location

or

position does

not

interfere

with

its

proper

venti-

lation. For example,

the

appliance should

not

be

situated

on

a bed, sofa, rug,

or

similar surface

that

may

block

the

ventilation openings; or, placed in a built-in installation,

such

as

a bookcase

or

cabinet

that

may

impede

the

flow of

air through

the

ventilation openings.

9.

Heat

-

The

appliance should be

situated

away

from

heat

sources such as radiators,

heat

registers, stoves,

or

other

appl'iances (including amplifiers)

that

produce

heat

.

10

. Power Sources -

The

appliance

should

be

connected

to

a

power supply only

of

the

type

described in

the

operating

in

-

structions or as

marked

on

the

appliance.

11. Grounding

or

Polarization -

The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization means of an

appliance

is

not

defeated.

12. Power-Cord

Protection

-Power-supply cords

should

be

routed so

that

they

are

not

likely

to

be walked

on

or

pinch-

ed by items placed

upon

or against

them

, paying particular

attention

to

cords

at

plugs, convenience receptacles, and

the

point

where

they

exit

from

the

appliance.

13.

Cleaning -

The

appliance should

be

cleaned only

as

recom-

mended

by

the

manufactu

r

er_

14.

Power

Lines -An

outdoor

antenna

should be located away

from power lines.

15

.

Outdoor

Antenna

Grounding

-

If

an

outside

antenna

is

connected

to

the

receiver,

be

sure

the

antenna

system

is

grounded

so

as

to

provide

some

protection

against voltage

surges

and

built

up

static charges.

Section

810

of the

National Electrical Code,

ANSI/NFPA

No.

70

-1984, pro-

vides

information

with respect

to

proper

grounding

of

the

mast

and

supporting

structure

, grounding

of

the lead-

in

wire

to

an

antenna

discharge unit, size

of

grounding con-

ductors,

location

of

antenna-discharge

unit

,

connection

to

grounding

electrodes, and requirements for

the

grounding

electrode

. See Figure below.

EX A

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CODE

16.

Nonuse Periods -

The

power

cord

of

the

appliance should

be unplugged from

the

outlet

when left

unused

for a long

period

of

time

.

17.

Object

and

Liquid

Entry

-Care should be

taken

so

that

objects

do

not

fall and

li

quids

are

not

spilled

into

the

en-

closure

through

openings.

18.

Damage Requiring Service -

The

appliance should be ser-

viced 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

exhibits

a

marked

change in

performance

;

or

E.

The

appliance has been

dropped,

or

the

enclosure

dam

-

aged.

19. 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.

3

15. MPX

FILTER:

for

making

Dolby recording

of

FM

broadcasis. Without this filter, the pilot tone (19 Hz) and

subcarrier note (38 kHz)

contained

in

FM

programs may

"thwart" the

DOLBY

NR

system.

16. DOLBY

NR

:

Selects

the Dolby B

or

C Noise

Reduction system

or

defeats them.

17. INPUTS,

Land

R :

The

se 1/4"

jacks

accept

unbalanced line-level signals.

NOTE I

Connecting signals to the front input jacks

defeats

the

rear input jacks. You

cannot

use

both

jacks

at

one

time.

18. PHONE

S:

The knob adjusts the listening level in

the

headphones plugged into the adjacentjack.

19.

RE

PE

AT:

Initiates repeat play between

Memo

I and

Memo 2 (p. 12)

20. MEMO IN :

If

pressed together with

LOC

I

or

2,

stores the current tape point into memory.

u MEMO IN cannot operate during repeat play

or

when

the tape is fast-winding as a result

of

pressing either

Lac.

21. RTZ : Fast-winds the tape at

either

direction, stopping

when the tape

counter

reads

00

00. Inertia may carry the

tape slightly past the

00 00

point.

22. LOC, 1 and 2 :

Locate

the tape to

Memo

I and

Memo 2 points, respectively.

23. DIRECTION (112R MKII only)

Switches

over

the tape side

to

play

or

record.

u DIRECTION conl/ot operate during

.'

o Repeat play

o Search with

LaC

or

CPS

o Fast cueing

o 4-secolld blank recording

u

If

pressed while ill F.FWD

or

REW, switches the tape

side

to

play (or record) ollly when the tape reaches

th

e

elld

or

beginning or when stop is pressed.

24. Auto Reverse (112R MKII only) : In

one-time,

auto-reverse mode (

~

), both sides

of

the tape play

or

record

and

stop. But, if play

or

record starts on the reverse

tape side, only that tape side plays

or

records and stops.

In

continuous

reverse

mode

( C--.J ), the entire tape plays

up to five times and stops,

or

both sides

of

the tape record

and stop.

25. ADJUST (122 MKIII only) :

If

pressed

when

MONITOR

is

set to

AUTO

and the transport

is

in Record

mode, allows you to press the OSC

and

10

kHz switches

and to "fine tune" the

BIAS

and

LEVEL

settings. For more

details,

see

page

15.

26. OSC and

10kHz

(122 MKIII only) : Pressing

OSC

after

ADJUST

allows

you to

get

400

Hz

or

10 kHz

oscillator signals for

BIAS

and

LEVEL

adjustments (you

get a

400

Hz signal unless you press the

10kHz

switch).

27_

BIASILEVEL trimmers (122 MKIII only) : For

precise calibration of the bias/record levels to the tape being

used.

7

/j@

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28 29

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122MKIII

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31

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I@

'

~rtJ(@)

~

.@JJ,~.

~

@ t

, U I I

32

31

28. INPUT

XlR

-t

ype

jacks:

Accept

+4

dBm

balanced

s

ig

nals. Pin assignment : Pin I is shield (ground). Pin 2

is

Hot (+). and Pin 3 is Cold (-).

2

9.

INPUT

UN

BA

lI

BAl

sw

i

tch

:

Selects

either

the

XLR-type or RCA input

ja

ks.

30

. OUTPUT

Xl

R-

type

jacks

:

Transmit

+4

dBm

balan

ce

d signals to

your

mix

er,

monitor

amp. etc. Pin

assignment : Pin I

is

shield (ground), Pin 2

is

Hot (+), and

Pin 3

is

Cold (-).

31. OU

TPUT

RCA

jac

ks

Transmit

-10

dBY

unbalanced signals.

32. INPUT RCA

jacks

:

Accept

-10

dBY

unbalanced

signals.

33. Bla

nk

Pan

el

(except

122

MKIII) :

Space

for

mounting an optional balanced

amp

kit

(LA-I

12).

I U

34

When

the

LA-112

is

installed,

you

who

are

using

the

112R

MKII/112

MKII

will have

access

to the

INPUT

XLR-type

jacks

(

#28),

the

INPUT

UNBAL/BAL

switch

(#29) and the

OUTPUT

XLR-type

jacks

(#30) as with the

122 MKIII.

34. REMOTE CONTROL

connector:

This 25-pin

0-

sub

connector

is for

controlling

the

transport

from the

optional remote RC-112R (for 112R MKII)

or

RC-134

(for

122 MKIII and 112 MKII),

or

for fader start from a mixer.

A 25-pin

connector

(Pan

No.

53363571-00)

and its

jacket

(Part No. 5336358100) are optionally available.

Fader

start (122 MKIII

and)

12

MKII

only)

: Pins

22

and

24

are assigned for this function.

The

transport will toggle

Play and Pause, as depicted.

-

8

PLAY

~'

PIN NO.22

PAUSE

I PIN NO.24

Y stands for Yes, N for No.

FADER

Input:

To activate a function, the pin must be brought to

ground potential for

24

msec or more.

REMOTE CONTROL

Signal

Function

22

FADER START Closed, Play; opened,

Pause Y N

23

Not Used --

24

GJ\JD

Y Y

25

+5V

Max.50mA

Y Y

REM

OTE CONTROL Pin A

ss

ignment

Timing

of

Tally Outs

REMOTE

CONTROL

0000000000000

000000000000

Tally

Key

Operation

112RMKili

!

122MKIII/112MKII1

t

STOP

--~-~---------

____

~_

I

~

____

__

,

400m

SEC

(from

Fast

mode)

I

650m

SEC

(from

Play

mode)

,

__

~_~n

n

__

n

_____

~J'__

__

_

200m

SEC

(from

Stop

mode)

I

,800m

SEC

(from

Play

mode)

F.

PLAY

!

~

I

-

-1-450~-

SEC

(from

St~p-mOde)

-

'-----

',1000m

SEC

(from

R.

Play

mode)

,200m

SEC

(from

Pause

mode)

!

~

I

-

-1-450~

-SEC-(from

Stop-mOde)

-

-'-----

, 1

OOOm

SEC

(from

F.

Play

mode)

,

200m

SEC

(from

Pause

mode)

PAUSE

!

~

I

--

-1-

300m

SEC-(~O-m-

Stop

mode)

-'-----

,

200m

SEC

(from

Play

mode)

REC

! •

~

I

-

--

!-R-EC

pC\-;-r

SOm

-SEC-(~om

Play

mode)

,

450m

SEC

(from

Stop

mode)

REC

PAUSE

20m

SEC

(from

Pause

mode)

i

300m

SEC

(from

Stop

mode)

l

~

I

60

0m

SEC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

2l

i

21

Signal

Function

--

Activates Jhe

PLAY

IN

corresponding transport Y Y

mode, active at low level

FFIN " Y Y

REWIN " Y Y

PAUSE

IN

" Y Y

STOP

IN

" Y Y

RECIN " Y Y

Lets the next deck start

playing during sequential

START COMMAND play of two decks, active at N Y

low level (only when

ordered to provide the

function).

Not Used --

Indicates the tape travel

UP/DOWNOUT direction

(UP:

forward, Y Y

DOWN:

rewind)

Indicates either end of the

--

END

TALLY OUT tape

is

reached, active at N Y

low level.

---

Indicates the corresponding

F.

PLAY TALLY OUT mode is activated, active at Y Y

lo

w level.

FF

TALLY OUT " Y Y

REW

TALLY OUT " Y Y

PAUSE TALLY OUT " Y Y

STOP TALLY OUT " Y Y

REC

TALLY OUT " Y Y

Activates reverse side play,

R.

PLAY

IN

active at low level. N Y

R.

PLAY TALLYOUT Indicates reverse side play N Y

mode, active at low level.

REEL PULSE Y Y

Not Used --

RTZIN Fast-winds the tape

to

Y Y

0000,

active at low level.

9

Bas

ic

Operation

Recording

0()t..8V HR

MP

J(

F

ILTER

~

c

V

CW

.

MONITOR

flO

-;

~oE5

1

@-o

,

I,

m

Playback

OOley

NR

Erasing a Tape

If

you are using the 122 MKIlI, first adjust BIAS and LEVEL as per instructions

on page

15.

I. Plug the record source into the front

or

rear input jacks.

If

you have plugged the record source into the rear jacks, set the I

NP

UT switch

(on rear) to the appropriate position.

2. Set the DOLBY NR switch to the desired position, and the MPX FILTER

switch to OFF unless you intend to record FM broadcasts.

3. Set the MONITOR select switch to AUTO.

4. Press and hold RECORD and press PAUSE to activate Record Ready mode.

5. Start your record source and adjust the INPUT controls so that the YU meters

peak at about 0, and adjust the PHONES control for a comf0l1abie listening

level.

6. When everything

is

ready. press PLAY to start recording.

7.

To

stop recording, press STOP.

Or

press PAUSE to temporarily stop recording;

to resume recording, press PLAY.

I. Set the

DO~BY

NR switch depending on the tape

in

use.

2. Set the MONITOR switch to

AUTO

.

3.

To

initiate playback. press PLAY.

Adjust the OUTPUT and/or PHONES level controls as required.

4. To stop playback, press STOP.

Or

press PAUSE to temporarily stop playback;

to resume playback, press PLAY.

To erase a cassette tape not

by

cverwriting, set the INPUT controls to 0 and press

RECORD and PLAY together.

To

quickly erase both sides

of

a tape (except metal tapes

),

use the optional TEAC

E-2A Bulk Eraser.

10

Special Fe

atures

Autolocator

Functions

o Setting Memo 1 and

Memo 2 pOints

~

L.!!!.....J

o Checking Memo Po

ints

STOP

o Cha

nging

Memo P

oin

ts

o Erasing Memo pOin

ts

o Locating

the

tape

Press MEMO

IN

and

LOC

(lor

2) together at the desired moment.

The

tape

counter reading at that moment

is

stored into memory.

a You ca

ll1lot

set allY memory poillls during repeat play or when the tape is

fast-winding

as

a result

of

pressing either LOC.

When the tape

counter

is reset to

00

,

your

Memo

points are automatically

recalculated, so that they stay the same relative to their original tape positions.

Press

STOP

and LOC 1/2 together and hold them.

The

tape counter will read

the corresponding memory point until you release the buttons.

Each

time you press MEMO

IN

and

LOC

1

or

2, a new memory point

is

established and the previous memory point

is

erased.

All memory points are erased when you

o

Tum

off the de

.::

k,

or

o Eject the tape.

To Memo pOints : Press LOC 1 to lo

ca

te the tape to the

Memo

J point, and

LOC 2 to the

Memo

2 point.

Auto

Pl

ay

: Press PLAY after LOC. The tape will automatically start playing

at

the end

of

search operation.

Auto

Paus

e : Press

PAUS

E after LOC. The transpo

rt

will automatically go

into Pause mode

at

the end

of

search operation.

To

00 00 : Press RT

Z.

11

Repeat Play

,I;

- 0 -

I:~T

I

A repeat

fu

nction continually plays a segment between two memory poin

ts.

I. Mark the desired start point with

MEMO

IN

and

LOe

1, and the end of t

he

segment you want to repeat with the

MEMO

IN

and

LOe

2.

2. Press REPEAT.

The tape will be located

to

the Memo I point and start playing, automatically.

When it plays

up

to the Memo 2 point,

it

will again rewind to the Memo I

point to resume playback.

•

To

exit

the

repeat

mode,

press REPEAT again.

a REPEATis locked

OL/f

during Record or Record Pause (Ready

).

• 122 MKllI/

11

2 MKII : The Memo I point does

NOT

have to

be

higher than the

Memo

2 point.

The

tape will play

to

the higher Memo poin! on the tape,

rewind to the lower Memo point.

• 112R

MKll

: The tape always

pl

ays to the Memo 2 point and rewinds to the

M

em

o I point : Memo 2 hould be higher than Memo

I.

•

If

you press LOC 1/2 during repeat play, the tape will be located

to

the Memo

1/

2 poin! and start

pl

a

yi

ng

or

rewind to

th

e lower Memo point.

•

If

you press a transport control, the function pressed

is

activated and the repeat

play mode

is

temporarily disabled; and the repeat sequence will resume when

you

o Press LOC I

or

2. or

o Press PLAY when you are somewhere inside the programed loop

or

at a

point lower

th

an the start point of loop.

I 12R

MKII

:

To

create

a

repeat

loop

over

both

tape

sides,

use

the

continuous reverse mode ( c--..J) :

6 : Start point (Memo 1) -

-.:

Skip

• : End point (Memo 2) Q :Forward play direc

ti

on

_:

Play

Opposite Tape Side

Tape Side Faci

ng

You

12

Opposite Tape Side

\ Leader

) Tape

IL

...

______

II

f~~er

S

[)

15.

A Tape Side Facing

You

Opposite Tape Side

•

17

Leader (

~

Tape J

L/

Tape Side Facing

You

Opposite Tape Side

Tape Side Facing You

Only the last example can either be in one-time, auto-

reverse

==>

or

continuous

reverseL~

mode.

Recording a Blank Space Between Programs

STOP [e

on

o

0~

Pressing STOP while holding RECORD

down

during Record records 4 seconds

of

silence, and the tape stops.

u Whell a

4-secolld

blank

space

is recordillg,

all

cOlllrols

are

excepl

.'

loc

ked

0111

STOP

.

RESET,

MEMO

IN,

L~,

==>

(l12R

MKII ollly). alld

ADJUST

(/22

MKIII

ollly)

u 122 MKIII

.'

If

Ihe

OSC

LED

is

IiI

whell

YOll

press

STOP

alld

RECORD,

Ihe

deck ollly goes

illlO

SlOP

mode.

Using CPS (Computomatic Program Search) (112R MKII only)

rMEMo"l

~

CPS

counts

a blank

space

of

about 4

seconds

between

selections

(programs) to

locate the beginning

of

a specific one, letting the tape start playing after the search

operation.

I.

When

the tape is stopped, press

STOP

and MEMO

IN

simultaneously.

The

CPS mode is activated and the tape counter

displays"

I."

Pressing

STOP

and

MEMO

IN

in

other

transport

modes

than

stop,

too,

activates the CPS mode, the transport going into stop.

13

rMEMOl

~

HW

D

2. Specify how many selections from the curr nt tape loca

ti

on

is

the desired

selection by pressing

ME

MO

IN as many times as nece

ssa

ry. Each time you

pres

s

MEMO

IN the number

in

the tape counter window will increment. You

can enter up to 15.

You can hold

MEM

O IN

to

scro

ll

up the numbers.

3. Depending on whether y

our

selection is ahead

or

behind the

cur

rent tape

location, press

F,FWD

or

RE

W.

4. Each time a blank pace

of

about 4 seconds

is

encountered. the tape

co

unter

display will decrement, and at the end

of

search operation, the tape will

automatically start playing.

• Before pressing

F.FWD

or

REW

in

step 3 if any

of

the following

is

pressed,

th

e function pressed

is

activated and the CPS mode is disabled:

o Transport controls except F.FWD and REW

o

RTZ

o LOC 1/2

o

REPEAT

•

If

you press F.

FW

D

or

REW after once search starts, the

fu

nction pressed is

activated and

th

e CPS mode is disabled.

• In continuous reverse mode (

c-

..:>

).

you can skip to a selection on either tape

side.

In once-through reverse mode (

:;::::)

), you can skip from the tape s

id

e facing

you to a selection on the reverse tape side, but

yo

u

ca

nnol skip from the reverse

tape side to a selection on the tape side facing you ; the tape wi

ll

stop when

either end

of

the rev

rs

e tape side

is

reac

he

d.

High

speed

cueing

functions

(#4

and

5,

page

6): Depending on some conditions such as type of

tape in use, environmental temperature and humidity, etc. reverse cueing may

not

possibly start, or may start

but

not

smoothly, if the current tape location is close to the beginning of the tape. Similarly, the forward cueing

may not possibly start as expected if attempted near the end of the tape.

14

Bias

and

Recording Level Calibration (122 MKIII only)

,

I"

m

I"

- 0 -

, ,

I

AD}UST

t

L

BIAS

R

L LEVEL R

o

Tapes

differ considerably

in

the bias required to record on them and

in

their

sensitivity.

The

122 MKIII allows fine adjustment

of

bias to exactly match the

tape being

used;

also the reference recording level can be precisely adjusted to

compensate for difference

in

sensitivity among tapes.

•

Before

starling adjustment, clean the heads, tape guides, rollers, etc. and

demagnetize the heads and all metal parts

in

the tape path.

• In you intend to make adjustment while monitoring through speakers, turn

down their volume to avoid damage to them.

•

Have

at hand a crisscross screwdriver which fits

in

with the BIAS/LEVEL

trimmers.

I. Load the tape.

2. Make the following

settings:

INPUT level controls to 0 ;

OUTPUT level control to 0 ;

MONITOR switch to

AUTO;

DOLBY

NR

switch to

OFF;

MPX FILTER to OFF.

3. Press PLAY and RECORD to put the deck into Record mode.

4. Press ADJUST, then press OSC.

5. Turn the BIAS trimmers all the way to the left with the appropriate screwdriver.

6. Slowly turn the BIAS trimmers (one at time) clockwise for maximum reading

on the VU meters.

Suggestions:

Turn the trimmers to the left and right alternately to "pinpoint"

the exact

maximum

position.

If

the meter needles detlect all the way to the

right, adjust the

LEVEL

trimmers until the meters read about 0 VU at a

maximum setting

of

BIAS.

7. Adjust the LEVEL trimmers (one at time) for 0 VU.

8. While alternating the oscillator signal between

10

kHz and 400 Hz by pressing

the 10 kHz switch on and

off

(still

in

record mode), adjust the BIAS trimmers

so that the VU meters show almost the same reading

at

both frequencies.

9. Set the oscillator to

400

Hz (10 kHz

LED

off) and readjust the

LEVEL

trimmers for 0 VU.

Repeat the procedure each time you change the tape, especially when you change

the type

of

tape.

15

Dolby HX PRO

If

the source you are recording is rich

in

high-frequency

signals, they can adversely affect the

accuracy

of

the

recording and decrease the high-frequency response.

The

Dolby HX Pro system takes care

of

these signals during

recording to prevent the accuracy

of

the recording from

decreasing and improve the high-frequency response (by 6

dB or more).

The

Dolby HX Pro system uses no encoding/decoding

process and a cassette tape recorded with this system can be

played back on any stereo cassette players.

Care and Maintenance

+

10

dB

-10

-20

-30

-40

20Hz

50

100

200 500 I k

10

20k

I

250n

Wb

!m

H

X

p~Or

k../

-.....::::::

~

HX

P

'Off

\\

\...

A typical example of effect

of

Dolby

HX

Pro

(with

Normal Tapes)

o Cleaning the Heads and Tape Guides

All heads and metal parts

in

the tape path must be cleaned

after every 6 hours

of

operation,

or

before starting and after

ending a recording session.

I.

Open the cassette door.

2. Using a good head cleaning fluid and a cotton swab,

clean the heads and tape guides until the swab comes

off

clean. Wipe

off

any

excess

ceaning fluid with a dry

swab.

o Cleaning the Pinch Roller

Clean the pinch roller

at

least once each day the deck is

used. Use a good rubber cleancer.

I. Clean the pinch roller with a cotton

swab

moistened

with rubber cleaner, until there

is

no visible residue on

the pinch roller

2. Using a clean cotton swab, wipe

off

all excess rubber

cleaner from the pinch roller. Make certain that there

is

no foreign matter remaining on the pinch roller.

o Cleaning the Capstan Shaft

After cleaning the pinch roller, clean the capstan shaft with

a cotton swab moistened with head cleaning fluid.

o Oegaussi'ng the Tape Path

Slowly move in to the tape path. Move the

degausser

slowly back and forth, touching lightly all metal parts in

the tape path. Slowly move

it

away again to at least I m

(3 feet) from the recorder before turning ifoff.

122MKIII

Capstan Sha«

112RMKII

112MKII

Pinch Roller

Erase Head

Capstan Shaft

Pinch Roller

Erase Head ReciRepro Head

Capstan shaft

16

Block Diagrams

122MKIII

DOLBY

NR

8 C

(OECOOEA) ,

o···~·

.-o---o.~

..

o···~··

DOLBY

NR

I

c---

~

:..

INPUTS

~

-[RW-I

-

~

L

"'"""

( -

IOc!8V

J

I MONITOR

DOLBY

NR

B C

(

ENOOOEAI)

,

MPX FILTER .v

....

<>'-o

.

..~

.~~

..

<>'-0

...........,

...

__

.......

.

__

..

... .

..

,.""",

I

C~~~J

0AeAI.~

(

-IOdIN)

IPHONES I

R~~l

,'00wIIO)

I

PEAK

IND.

It-------j~

IVUMETER I

~

··.·

0'-0

...

.,.

..

.........

.

:::t AEC HEAD

IADJUST I

...

;;--.....,

~

....

r---1

,f-1

-----

:::0 ERASE HEAO

~

112RMKII

REPROHEAO

~~

DOLBY NR B C

(OECOOER) ,

~

fa

.v

.c

.'?-

-

o---o

.

I!

...

o

·--

~

·

I - v

v

DOLBY NR IPHONES I

fIOOWII

Q)

DOLBY

NR

8 C

fEHCOOEA)

.

I

PEAK

IND. I

MPX FILTER I

.........

<>'-0.

IVUMETER

I_~

~

I

.v

t.--

~~~HX-----.JPRO

19

112MKII

RIP

HEAD

C):::------+---<Y~

•v I

MPX

FIL

TJ:R

C.

•

••

H

...

o--

....

.v

c

C.

()

...

..

...........

o---o

-

~

---

Off'

o Q

I DOLBV NR I

-v

DOLBY

NR

S,

C

J5:m

,

Af

C

IPHONES I

(I!X7WI,Q)

I PEAK IND.

IIIU

METER I

~

~-------------------~

~

0--.0 ERASE HEAD

TASCAM

TEAC

Professional

Division

122MKm/112RMKll/112MKH

TEAC CORPORATION 3-7-3, Nakacho, Musashino-shi, Tokyo 180, Japan Phone: (0422) 52-5081

TEAC AMERICA, INC.

7733lelegraph

Road, Montebello, California 90640 Phone: (213) 726-0303

TEAC CANADA LTD. 340 Brunei Road, Mississauga, Ontario L4Z 2C2,

Canada

Phone: 905-890-8008

TEAC

UK

LIMITED 5 Marlin House, Marlins Meadow, The Croxley Cenlre, Watford, Herts.

WDI

8YA, U.K. Phone: 01923-819699

TEAC DEUTSCHLAND GmbH Bahnstrasse

12

, 65205 Wiesbaden-Erbenheim,

Germany

Phone: 0611-71580

TEAC FRANCE S.A. 17, Rue Alexis-de-Tocqueville, CE

00592182

Antony Cedex, France Phone: (1) 42.37.

01

.02

TEAC NEDERLAND

BV

Perkinsbaan

",

3439

NO

Nieuwegein, Nederland Phone: 03-402-30229

TEAC AUSTRALIA PTY., LTD. 106 Bay Street, Port Melbourne, Victoria 3207, Australia Phone: (03) 9644-2442

A.C.N. 005 408 462

TEAC ITALIANA S.p.A. Via C. Cantu 5, 20092 Cinisello Balsamo, Milano, Italy Phone: 02-66010500

PRINTED

IN

TAIWAN 0796UO.7 M-0828K

TASCAM

TEAC

Professional

Division

(122MKIII)

SERVICE

MANUAL

122MKm/1

12RMKn/112MKn

Stereo Cassette Deck

N01ES

As

~gards

the resistors and capacitors, refer

to

the circuit

diag:ams

and the PCB ass'y drawings contained

in

this manual.

*

PCboards

shown viewed from parts side.

*

Pa1S

marked with *require longer deliver time.

*&Parts marked with this sign are safety critical components.

TI1{

must always

be

replaced with identical components -

re

'ir

to the TEAC Parts

Li

st and ensure exact replacement.

*Pts not shown

in

the parts lists, or parts. though listed, having

no

p

arts

numbers, are not general "ready-to-supply" parts.

1~~tliiJi:,:::J

:JT:J-if-I;:J:,*~

l

<::

S

\)

~

9"

0

@]~eI8lS

d::

U~:!&

18l~~~

l

<::

<

t~c;I,\o

1.

"]'1)

':J

t--¥t&I8lI;:J:=gjlQ~aoD{;Ji:c;hn

\

~9

o

2. *

~p

0)=gjl6'i,

I;:J:MltIW;E'TDID

\

~

90S

6

7J

\

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!NSTRUCTIONS FOR SERVICE PERSONNEL

BEFORE RETURNING APPLIANCE

TO

THE CUSTOMER, MAKE LEAKAGE-CURRENT

OR

RESISTANCE MEASUREMENTS TO DETERMINE THAT

EXPOSED

PARTS ARE

ACCEPTABi...Y INSULATED FROM THE SUPPLY CIRCUIT.

Eff,,

;

jve

•

AUG

I "3T, 1993 4A0735 5704066600

1.

SPECIFICATIONS

{±H~

Tape:

Compact

cas

sette

C-30

to

C-90

.

(Nonnal/Cr02/Metal)

Track

Format:

4- track, 2-

chan

nel

Head Configuration

12

2MK

III

4- track, 2

-channel

Record

(x

l)

/ repro (:<1 )

combin

ation

head

(am

o

rphous

)

Half t

rack

Erase

head

(

xl)

(

ferrit

e)

11

2RMK

[]

4- track, 2-

chann

el

Record

(xl

) /

rep

ro (

xl

)

combination

rotary

head

(perma

lloy)

Half

track

Erase

head

(xl)

(ferrite)

112MK

[]

4-

track, 2-

channel

Re

cord /

repro

head

(x

l )

(permalloy)

Half

track

Era

se

head

(x

l)

(ferrite)

Motor

122MK

III

FG servo

direct-drive

capstan

motor

:d

DC

servo

reel

motor

xl

DC

an

cillary

motor

xl

11

2RMK

[]/l12MK

[! :

DC

servo

capstan

motor

xl

DC

reel

motor

xl

DC

ancillary

motor

xl

Tape

Speed:

4.8

cm/sec.(1-7/8")

Pitch

Control:

+/

-12

% (

approx.

)

Line Input

-Rear

RCA

jack

/

front

1

/4"

jack

Nominal

Input

Level:

-10

dBV (0

.3

V)

Minimum

Input

Level:

-

18

dBV (126

mY

)

Input

Impedance:

20k

ohms,

unbalanced

-XLR-

type

jack

(sta

ndard

on

122MK

III

;

optional

on

112RMK

II

/ 112MK

IT

-

LA-

112

required)

Nominal

Input

Level:

+4 dBm (1.23 V)

Input

Impedance:

10k

ohms,

balanced

Line Output

-RCA

jack

(

rear)

Nominal

Output

Level:

-10

dBV (0.3 V)

Maximum

Output

Le

ve

l:

- 2 dBV (0.8

V)

Output

Impedance:

100

ohms

Load

Impedance:

25k

ohms

or

mor

e

-XLR -

type

jack

(sta

ndard

on 122MK

III

;

optional

on

112RMK

IT

/

ll2MK

IT

-LA-

ll

2

required)

Nominal

Output

Level:

+4 dBm

(l.

23 V)

Minimum Load

Impedanc

e:

600

ohms

Headphone Output : 100

mVv

(8-ohm

load

)

Bias/Erase Frequency:

122MK 1II/1l2RrvfK

II

150 kHz

112MK

IT

: 100 kHz

Equalization: 318011 s + 70

11

s

(Cr

02/Me

tal

)

318

011

s

-+-

120

11

s (N

orm

al)

Reference Recording Level :

250

nWb

/ m = 0 V

U(315

Hz) (EIAJ) ;

with

Oo

lby : 200 nWb/ m

=-

1 VU

Remote

Connector:

25-

D-

sub

Power Requirements:

USA/

Canada:

120 V AC, 60

Hz

U.K

.!

Australia:

240 V

AC

, 50 Hz

Europe:

230 V AC, 50

Hz

Japan:

100 V

AC,

50-60 Hz

Consumption:

122MK

1II

/

11

2RMK [! : 23 W

112MK

II

20 W

Dimensions (WxHxL) : 482

mm

x 132 mm

(r

ubber

feet

not

included) x 356.3 mm

(19"x

5-3/16"

;<

14")

Weight:

122MK

1II

/ 112MK

IT

: 8.4

kg

(18-8

/

16

lbs.)

112RMK

II

: 8.7

kg

09-3

/ 16 lbs.)

Typica'i Performance

Speed Accuracy :

122MK

III

:

+/-0.5

%

112

RMK

IT

/

1l2MK

II

:

~ /

-1.0

%

Wow & Flutter 1

):

less

than

0.04 % WRMS

Fast Winding Time : 70

sec.(approx.)

w

ith

C-60

Frequency Response, Overall 2) (EIAJ,

without

NR

)

12

2I-,1I\

III

25

Hz

to 20 kHz,

..

/ - 3 dB (Metal)

25

Hz

to

19

kHz,

+/-3

dB

(C

r02

)

25

Hz

to

17

kHz, +/

-3

dB (Normal)

112RMK

IT

25 Hz to

19

kHz,

+/-3

dB (

Metal)

25

Hz

to

18

kHz, +/

-3

dB

(C

r02)

25 Hz to

l7

kHz,

+/-3

db

(Normal)

112MK

II

25 Hz to

19

kHz, +/

-3

dB (

Metal)

25 Hz to

18

kHz,

+/-3

dB

(C

r0

2)

25

Hz

to

16

kHz, +/

-3

dB

(Norm

a\)

Distortion

2):

less

than

1.0

%,

at

1 kHz, 160 nWb

/m

(Metal)

SIN Ratio 2)

(metal

tape)

122MK

1II

/

1l2RMK!I

: 60 dB (

with

ou

t NR, ref. 3 %

THO, WT

O)

1121vlK

II

59

dB

(w

itho

ut

NR,

ref. 3 % THO, WTO)

68

dB

('Nith

Oolby-

B NR,

over

5 kHz)

78

dB

(

with

Dolby-C

NR,

over

1 kHz)

Channel Separation

2):

45

dB

or

better

(1

kHz)

Erase Ratio

2):

65 dB

or

better

(1 kHz)

2

Tascam 122MKmIII User manual

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