Teac A-6100MKII Bedienungsanleitung

SANE

A6100mx«il

Stereo

Tape

Deck

GENERAL

DESCRIPTION

The

TEAC

A-6100MKII

open

reel

tape

deck

1/2

track,

channel

(stereo)

master

tape

deck

which

has

1/2

track

record/play

capability

and

also

1/4

track

play

capability.

The

A-6100MKII

operates

two

selectable

speeds,

ips

and

7-1/2

ips.

can

used

with

reels

10-1/2”

diameter.

Also,

this

deck

provides

choice

output

levels

(0.3

and

0.775

which

are

selec-

table

the

rear

panel.

—

TABLE

CONTENTS

—

GENERAL

DESCRIPTION

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

SPECIFICATIONS

AND

SERVICE

DATA

.....

TOOLS

FOR

TESTING

AND

MAINTENANCE

PARTIAL

DIS-ASSEMBLY

..............--.

TAPE

TRANSPORT

PARTS

LOCATION......

—

Rear

View

—

HEAD

REPLACEMENT

AND

ALIGNMENT

...

—

Mechanical

—

MEASUREMENT

AND

ADJUSTMENT

.......

—

Mechanical

—

MEASUREMENT

AND

ADJUSTMENT

.......

—

Electrical

—

SIMPLIFIED

SCHEMATIC

AND

LEVEL

DIAGRAMS...........

0200.

eee

10.

SERVICING

AND

MAINTENANCE

.........

11.

THEORY

OPERATION

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

TERRE

Eres

SER

REN

TLS

SPECIFICATIONS

AND

SERVICE

DATA

Track

System

Heads

Motors

Reel

Size

Tape

Speed

Input

(Level

and

Impedance)

Output

(Level

and

Load

Impedance)

Playback

Equalization

Bias

Frequency

Power

Requirement

and

Consumption

Weight

Dimensions

(WHD)

1/2-Track,

Two-channel

Stereo

Mono;

1/4-Track

Playback

Switchable

Four:

Erase,

Record,

2-Track

Playback,

and

4-Track

Playback

Three:

Dual-Speed

Hysteresis

Synchronous

Capstan

Motor;

Eddy-

Current

Induction

Reel

Motors

10-1/2”

and

7”

7-1/2

ips

and

ips

MIC:

Specified;

-60

(0.775

mV)/10k

ohms

Minimum;

—70

(0.245

mV)

with

ATT

—50

(2.45

mV)

with

ATT

LINE:

Specified;

—8 dB

(308

mV)/50k

ohms

Minimum;

—18

(97.5

mV)

LINE:

Specified;

—8

(308

mV)/50k

ohms

Maximum;

(0.775

HIGH

LEVEL

—5.5

(411

mV)

LOW

LEVEL

Headphone

Out;

—24

(48.9

mV)/8

ohm

ips:

3180p

sec

usec

(NAB)

sec

(IEC)

7-1/2

ips:

3180

sec

(NAB)

100

kHz

(push-pull

oscillator)

US.A./°

145

General

100,

117

145

(53

lbs)

net

440

512

210

(17-5/16"

20-3/16”

8-1/4")

2-2

SERVICE

DATA

—

MECHANICAL

—

Tape

Speed

Deviation

and

Drift

Wow

and

Flutter

Pinch

Roller

Pressure

Reel

Torque

Brake

Torque

F.F/REW

Time

3.000

Hz,

+30

Hz,

within

Playback:

0.10%

(RMS)

ips

0.12%

(RMS)

7-1/2

ips

Overall:

0.12%

(RMS)

ips

0.15%

(RMS)

7-1/2

ips

2.2

(4.8

Ibs)

REEL

TAKE-UP

TORQUE

LARGE

980

1030

g-cm

(13.7

14.4

oz-in.

)

SMALL

470

490

g-cm

(6.6

6.9

oz-in.

)

BACK

TENSION

(TAPE

TENSION)

Horizontal

Vertical

g-cm

(0.6

0.8

gz-in.)

0.8

0.9

oz-in.)

g-cm

(0.6

0.8

oz-in.)

(0.9

1.1

oz-in.)

g-cm

(0.4

0.5

oz-in.)

(0.5

0.6

oz-in.)

1.600

2.000

g.cm

(22.4

28.0

oz-inch)

140

seconds

for

1800

foot

tape

SERVICE

DATA

—

ELECTRICAL

—

7requency

Response

Refer

Frequency

Response

Limits

charts

page

18,

21.

signal-to-Noise

Ratio

(Overall)

fos

Taig

irase

Efficiency

kHz

signal

(Measurement

with

input

higher

than

the

Specified

Input

Level)

‘tereo

Channel

Separation

Channel

kHz

“otal

Harmonic

Distortion

Overall:

1.0%

kHz

signal

NOTE:

result

continuing

changes

and

improvements

during

the

production

run,

minor

differences

may

found

between

early

and

later

machines.

Value

“dB”

the

manual

refers

0.775V.

DIMENSIONS

540mm

(2!-5/16")

440mm

(I7-5/16")

2!10mm(8-

1/4")

86660

T-l219

Fig.

2-1

Dimensions

TOOLS

FOR

TESTING

AND

MAINTENANCE

minimum

the

following

tools

and

test

instruments

are

required

for

measuring

and

adjusting

obtain

optimum

performance.

Regular

maintenance

tools

will

adequate

for

those

not

listed

here.

any

test

instrument

listed

here

not

available,

equivalent

can

used.

SPRING

SCALE...

0.000.200

eee

0—4

(0-8

lbs)

0—300

(0-10

02)

FLUTTER

METER........

Meguro

Denpa

Sokki

K.K.,

Model

MK-668C

DIGITAL

COUNTER

.........

Range;

Hz—100

kHz

ene

paca

BANDPASS

FILTER

...

TEAC

MODEL

M-206A

kHz)

Syren

VTVM

(AC)

.......

Hewlett-Packard

Co.,

Model

400E

OSCILLATOR

............4--

Hz—100

kHz

ATTENUATOR

........-..200065

General

purpose

OSCILLOSCOPE

..........+--555

General

purpose

BLANK

TAPE

...........-.

TEAC

YTT-

8013

TEAC

TEST

TAPE

....

YTT-1003

(7-1/2

ips),

YTT-1004

(15

ips)

for

Playback

Alignment

test

YTT-2003

(7-1/2

ips),

YTT-2004

(15

ips)

for

Tape

Speed

Fig.

3-2

Hex

Head

(allen)

Wrench

and

Wow

and

Flutter

test

TEAC

EMPTY

REEL

.........

RE-702

(2.5"

dia,

hub)

RE-701

(4”

dia,

hub)

TOOLS

oxo

Sefa-

eyed

chee

APs

teat

aae

General

nut

driver

Hex

Head

Allen

Wrench

Plastic

alignment

tool

Load

resistor

non

inductive

type

ohm/1

DEMAGNETIZER

..........

TEAC

E-3

equivalent

TENSION

ANALYZER

....--

TENTELOMETER

Type

T2-H20-ML,

NJS

Co.

Model

ITAI

equivalent

Fig.

3-3

Spring

Scales

Fig.

3-4

Example

Tension

Analyzers

PARTIAL

DIS-ASSEMBLY

-1

OUTER

CASE

AND

PANEL

REMOVAL

emove

necessary

panels

shown

the

illustration.

nplug

the

power

cord

before

removing

any

panel

iternal

parts.

Fig.

4-1

Outer

Case

and

Panel

Removal

HEAD

ASSEMBLY

REMOVAL

Remove

the

screws

the

top

the

head

cover

and

"lift

off.

Remove

screws

holding

head

base

plate

(with

heads).

Remove

mounting

nuts

through

access

slot

head

pase

plate

and

dis-connect

head

wires.

See

Fig.

6-4.

4-3.

FLYWHEEL

AND

CAPSTAN

ASS’Y

REMOVAL

Unscrew

(by

hand)

the

capstan

dust

cap

(F).

Remove

screws

from

capstan

thrust

angle

(A)

and

re-

move

it.

Remove

flywheel

(B)

loosening

hex

head

set

screws

and

removing

drive

belt

(C).

Remove

arm

support

plate

(D)

and

capstan

ass’y

(E)

removing

screws.

NOTE:

Wheel

replacing

parts

make

sure

belt

and

capstan

shaft

are

clean

and

free

oil.

Clean

these

parts

necessary.

—_

Fig.

4-2

Fiywheel

and

Capstan

Ass’y

Removal

Fig.

4-3

Head

Ass’y

Removal

4-4

REEL

MOTOR

REMOVAL

Loosen

set

screws

(hex

head)

brake

drum

(A)

and

the

reel

turntable

ass’y

(D)

front

the

reel

motor.

Lift

off

these

parts.

Remove

mounting

screws

securing

the

brake

ass’y

(B)

the

motor.

Carefully

lift

off

the

brake

ass’y

(B).

Remove

mounting

screws

securing

reel

motor

(C)

chassis

through

the

front

panel.

Fig.

4-4

Reel

Motor

Removal

4-5

RIGHT

TENSION

ARM

REMOVAL

——_-—_

See

illustration

for

complete

dis-assembly

instructions.

Fig.

4-6

Right

Tension

Arm

Removal

4-6

LEFT

TENSION

ARM

AND

GUIDE

REMOVAL

Loosen

set

screws

Impedance

Flywheel

(E)

and

remove

it.

Remove

mounting

screws

securing

the

Tension

Arm

bracket

(D).

Disconnect

one

end

spring

(B).

Loosen

set

screw

TENSION

ARM

(C)

and

remove

TENSION

GUIDE

(A).

Also,

remove

TENSION

ARM

(C)

removing

ring.

LEFT

Fig.

4-5

Left

Tension

Arm

and

Guide

Removal

RIGHT

GC,

EOE

Qum-(

Ga,

Gum

-@—

T-1224

TAPE

TRANSPORT

PARTS

LOCATION

—

REAR

VIEW

—

(1002)

Frequency

Selector

for

Take-up

Torque

Adj.

(50

60)

Power

Transformer

Right

Ree!

Left

Reel

Motor

c9,C10

For

Reel

Motor

Capstan

Motor

Servo

P.C.B.

Include

R931

Power

P.C.B.

For

Capstan

Motor

Flywheel

Impedance

Flywheel

Peak

Indicator

aby

P.C.B.

.C.B.

Include

VR801/802

Fuse

and

Voltage

Selector

Piug

Fig.

5-1

Tape

Transport

Parts

Location

HEAD

REPLACEMENT

AND

ALIGNMENT

—

MECHANICAL

—

6-1

HEAD

REPLACEMENT

replace

single

head

special

nut

driver

re-

quired.

Remove

the

nuts

(A)

the

defective

head

through

the

access

hole

provided.

This

releases

the

head

from

the

mounting

plate.

Note

the

position

the

wires

the

circuit

board.

Connect

the

new

head

the

same

man-

ner.

Replace

the

nuts

securing

the

new

head

the

plate.

Perform

head

alignment

before

operation.

SHIELD

Playback

only

T~1230

Fig.

6-1

Head

Replacement

6-2

HEAD

ADJ.

SCREWS

AND

ALIGNMENT

PLAYBACK

@®

Azimuth

adj.

screws

Height

and

Tilt

adj.

screws

Tangency

adj.

Nuts

Fig.

6-2

Head

Adjustment

Screws

and

Alignment

6-3

VISUAL

HEAD

ALIGNMENT

Since

the

head

alignment

critically

affects

the

frequency

response

both

playback

and

recording,

the

head

align-

ment

should

done

carefully.

The

head

can

adjusted

TILT,

TANGENCY,

HEIGHT

and

AZIMUTH.

For

head

alignment,

perform

the

following

coarse

adjust-

ments

first.

Then

fine

alignment

should

accomplished

electrically

while

playing

back

the

Test

Tape.

Coarse

Adjustment:

Without

Tape

HHO

Caeser

eer

Height

and

Tilt

screws

This

alignment

performed

viewing

from

the

side

without

tape

threaded.

Check

that

the

head

surface

parallel

the

tape

guide

surface.

With

Tape

TANGENCY

.......

Head

mounting

nuts

Loosen

the

head

mounting

nuts.

Adjust

the

head

that

the

vertical

alignment

the

head

gap

perpendicular

the

surface

the

tape,

then

tighten

the

head

mounting

nuts.

HEIGHT........

Height

and

Tilt

screws

This

alignment

checked

visually

looking

the

position

the

head.

The

head

core

for

track-1

(inner

core)

should

even

with

the

inner

edge

the

tape.

AZIMUTH

........

Azimuth

adj.

Screw

Adjust

the

azimuth

adj.

screw

that

the

gap

the

head

perpendicular

the

tape

travel.

NOTE:

After

this

coarse

adjustment

made,

the

adj.

screws

and

the

Head

mounting

nuts

should

realigned

according

electrical

head

alignment

paragraph

which

follows

this

Service

Manual.

6-4

MIS-ALIGNMENT

THE

HEADS

TILT

HEIGHT

(view

from

side

head)

(view

from

front

head)

TANGENCY

AZIMUTH

(view

from

top

head)

(view

from

front

head)

Adjust

Nuts

Fig.

6-3

Head

Mis-Alignment

—Example

—

—HEAD

WIRING—

PLAYBACK

HEAD

ioe

<—

sELecToR

vith

)

ft.

PLU

L-ch

Sees

Li)

ERASE

RECORD

TRACK

PLAYBACK

T-!228

Fig.

6-4

Head

Wiring

VOLTAGE

AND

FREQUENCY

CONVERSION

(only

General

Export

Model)

This

deck

adjusted

operate

electric

power

source

the

voltage

and

frequency

specified

the

reel

tag

and

packing

carton.

necessary

change

the

frequency

voltage

requirements

this

deck

match

your

area,

use

the

following

procedures.

ALWAYS

DISCONNECT

POWER

LINE

CORD

BEFORE

MAKING

THESE

CHANGES.

Frequency

Conversion:

Voltage

Conversion:

Remove

the

right

side

wood

panel

screws),

then

the

The

deck

may

set

for

100,

117,

220

240

volts.

rear/top

metal

panel

screws).

change

the

voltage

unscrew

the

fuse

the

center

the

Set

the

power

frequency

selector

slide

switch

(located

voltage

selector

plug.

Pull

out

the

plug

and

reinsert

the

capstan

motor)

the

position

desired

voltage

shows

the

cutout.

Reinstall

the

fuse

speci-

match

the

power

line

frequency

your

area.

fied

the

label

the

rear

the

deck.

Rotate

the

center

(capstan)

motor

clockwise

with

your

hand

and

re-position

the

belt

onto

the

correct

pulley

shown

the

motor

pulley

illustration

below.

The

pulley

can

seen

looking

through

the

opening

the

side

panel.

Continue

rotate

the

motor

hand

approximately

revolutions

verify

belt

placement

before

replacing

the

side

and

rear

covers.

Capstan

()

Flywheel

Rotate

motor

shaft

clockwise

while

changing

belt

position

;

Selector

Slide

Switch

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