Teac A-6100 Manuel utilisateur

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CONTENTS

GENERAL

DESCRIPTION

SPECIFICATIONS

2,3

TOOLS

FOR

TESTING

AND

MAINTENANCE

TEAC

TEST

TAPE

-YTT

SERIES-

TAPE

TRANSPORT

PARTS

LOCATION

PARTIAL

DISASSEMBLY

LINE

VOLTAGE

AND

FREQUENCY

CONVERSION

HEAD

ALIGNMENT

MEASUREMENT

AND

ADJUSTMENT

-MECHANICAL-

10.

A-6100

ELECTRICAL

ADJUSTMENT

-GENERAL

NOTICE-

11.

MEASUREMENT

AND

ADJUSTMENT

-ELECTRICAL-

12.

A-6300

ELECTRICAL

ADJUSTMENT

-GENERAL

NOTICE-

13.

MEASUREMENT

AND

ADJUSTMENT

-ELECTRICAL-

14.

SERVICING

AND

MAINTENANCE

...

15.

LIST

LINE

VOLTAGE

AND

FREQUENCY

(Hz)

USED

AROUND

THE

WORLD.

16.

TEAC

DECIBEL

TABLE

17.

TROUBLESHOOTING

.46,47

18.

LEVEL

DIAGRAMS

49,50

NOTE

When

placing

order

for

parts,

please

refer

the

PARTS

LIST

and

PRICE

LIST

FOR

PARTS

which

are

printed

separately

from

this

manual.

File

the

PARTS

LIST

manual

together

with

this

SERVICE

MANUAL;

future

TECHNICAL

INFORMATION

SHEETS

should

also

kept

with

these.

Use

the

PARTS

LIST

manual

and

the

PRICE

LIST

FOR

PARTS

when

ordering

replacement

parts

from

TEAC

Corp.

GENERAL

DESCRIPTION

The

TEAC

A-6100/A-6300

excellent

home

entertainment

stereo

tape

deck,

built

semi-professional

standards

with

motors,

heads,

two

(selectable)

meter

scale

ranges,

and

completely

push-button

controlled

operation.

Accepts

either

10-1/2"

reels,

and

has

tape

speeds

3-3/4

ips

and

7-1/2

ips

(A-6300)

7-1/2

ips

and

ips

(A-6100).

Special

features

include

switch-

selected

Bias

and

Equalization;

two

Line

Input

and

two

Line

Output

jacks

per

channel;

facilities

for

(optional)

remote/timer

controlled

operation;

and

special

features

for

the

A-6100

such

4-Track

playback;

MIC

ATT;

and

choice

0.3

0.775

VU"

level

the

OUTPUT

jacks.

Although

the

A-6100/A-6300

internally

appears

similar

other

TEAC

models

(esp.

A-4300),

significant

differences

require

consulting

this

manual

before

any

attempt

service

the

deck.

This

A-6100/A-6300

Service

Manual/

Parts

Manual

contains

adjustment

and

alignment

information,

part

replacement

reference,

and

other

information

about

obtaining

new

parts.

adjustments

repair

procedures

are

not

sufficiently

clear

seem

too

difficult

accomplish,

for

detailed

technical

information,

you

may

contact

the

nearest

TEAC

Distributor,

TEAC

affiliated

subsidiary

corporation,

the

TEAC

Corporation.

TEAC

addresses

are

found

the

back

this

manual.

FEATURE

COMPARISON

CHART

A-6100::

A-6300

Tape

Speed

(ips)

15.

VA.

Automatic

Reverse

play

YES

Counter

Repeat

(Playback)

YES

Memory

ADT0-ST0P

YES

Mic

Attenutor

YES

Peak

Level

Indicators

YES

Flip

Open

Head

Housing

YES

Marker

for

OUTPUT

YES

Playback

Track

Selector

YES

Output

Level

Selector

YES

Other

minor

design

changes

were

also

incorporated

for

specific

differences

parts

and

circuitry

please

consult

the

Parts

List

and

Schematic

Diagrams.

DIMENSIONS

»j

•V

2-1.

SPECIFICATIONS

ELECTRICAL

A-6100

FREQUENCY

RESPONSE:

Overall

from

recording

INPUT

playback

OUTPUT

lSlps

•••

40Hz'v26kHz

±3dB

7-l/2ips

•••

40Hz'v24kHz

±3dB

(Measured

below

the

Specified

Level)

INPUT

IMPEDANCE:

MIC:

lOkfl

(600SPvl0kQ)

LINE:50kO

OUTPUT

LOAD

IMPEDANCE:

LINE:

approx.

0.3V/10kO

HEADPHONE:

0.3mW/8fi

0.775

V/10kS2

EQUALIZATION:

15ips

••

NAB

50psec.

3180psec.

7-l/2ips

••

NAB

50psec.

3180psec.

INPUT

LEVEL:

OUTPUT

LEVEL:

BIAS

FREQUENCY.:

MIC:

-70dB±!dB

(0.25mV)

min.

LINE:

-8dB

(308m

-18dB

SdB

(97mV)

min.

DIN:

-38dB

±2dB

min.

OUTPUT:

-8dB,

OdB

selector

HEADPHONE:

-24dB±SdB(4.9mV)

DIN:

-8dB

100kHz

(±5kHz;

Push-pull

oscillator)

CHANNEL

SEPARATION:

45dB

more,

channel

1kHz

ERASE

EFFICIENCY:

65dB

A-6300

FREQUENCY

RESPONSE:

Overall

from

recording

INPUT

playback

OUTPUT

7-l/2ips

•••

40Hz't24kHz

±3dB

3-3/4ips

•••

40Hz

vl6kHz

±3dB

(Measured

below

the

Specified

Level)

INPUT

IMPEDANCE:

MIC:

10kQ

(600S2vL0kSO

LINE:50kS2

OUTPUT

LOAD

IMPEDANCE:

LINE:

approx.

0.3V/10kR

HEADPHONE:

0.3mW/8fl

EQUALIZATION:

7-l/2ips

••

NAB

50psec.

3180psec.

3-3/4ips

••

NAB

90psec.

3180psec.

INPUT

LEVEL:

OUTPUT

LEVEL:

MIC:

-7OdB

SdB

(0.25mV)

min.

LINE:

-8dB

(308mV)

-18dB

SdB

(97mV)

min.

DIN:

-38dB

±2dB

min.

OUTPUT:

-8dB

-2dB±$dB(610mV)

max.

HEADPHONE:

-24dB±SdB(4.9mV)

DIN:

-8dB

-2dB±IdB

max.

BIAS

FREQUENCY.:

CROSSTALK

REJECTION:

CHANNEL

SEPARATION:

ERASE

EFFICIENCY:

100kHz

(±5kHz;

Push-pull

oscillator)

45dB

more,

adjacent

track

125

50dB

more,

channel

1kHz

68dB

NOTE

Value

"dB"

the

test

refer

dB=0.775V,

except

where

specified.

-If

Test

Set

VTVM

calibrated

used,

appropriate

compensation

should

made.

Refer

the

TEAC

DECIBEL

TABLE

page

obtain

conversion

millivolts

should

your

meter

not

have

scale.

2-2.

SPECIFICATIONS

MECHANICAL

A-61QO

TYPE:

HEADS:

REEL

SIZE:

track

channel

stereophonic

track

channel

monophonic

track

channel

monophonic

Erase

head

Record

head

2-T

Playback

4-T

Playback

10-1/2"

maximum

NAB

reel

TAPE

SPEED:

15ips

(38cm/s),

7-l/2ips

(19cm/s)

MOTORS:

WOW

AND

FLUTTER:

6-pole

eddy

current

motors

for

reel

drive

4/8

pole

hysteresis

synchronous

motor

for

capstan

drive

0.15%

15ips

(RMS)

0.18%

7-l/2ips

(RMS)

Wow

and

flutter

measured

according

unweighted

(RMS)

NAB

standard

using

TEAC

YTT-2004/2003

flutter

free

tape.

Above

value

measured

during

play¬

back.

FAST

WINDING

TIME:

Approx.

140

seconds

less

with

1800

tape

OPERATING

POSITION:

Horizontal

vertical

POWER

REQUIREMENT:

100V/50Hz,

60Hz

100,

117,

220,

240V/50Hz,

60Hz

TCA:

117V/60Hz

TCA

models

for

TEAC

CORPORATION

AMERICA

POWER

CONSUMPTION:

DM:

90W,

EX:

122W,

TCA:

122W

WEIGHT:

net

MECHANICAL

A-6300

TYPE:

HEADS:

REEL

SIZE:

track

channel

stereophonic

track

channel

monophonic

track

channel

monophonic

Erase

head

Record

head

Playback

head

10-1/2"

maximum

NAB

reel

TAPE

SPEED:

7-l/2ips

(19cm/s),

3-3/4ips

(9.5cm/s)

MOTORS:

6-pole

eddy

current

motors

for

reel

drive

4/8

pole

hysteresis

synchronous

capstan

motor

WOW

AND

FLUTTER:

0.18%

7-l/2ips

(RMS)

0.20%

3-3/4ips

(RMS)

Wow

and

flutter

measured

according

unweighted

(RMS)

NAB

standard

using

TEAC

YTT-2002/2003

flutter

free

tape.

Above

value

measured

during

play¬

back.

FAST

WINDING

TIME:

Approx.

160

seconds

less

with

1800

tape

OPERATING

POSITION:

Horizontal

vertical

POWER

REQUIREMENT:

POWER

CONSUMPTION:

WEIGHT:

100V/50HZ,

60Hz

100,

117,

220,

240V/50HZ,

60Hz

TCA:

117V/60HZ

TCA

models

for

TEAC

CORPORATION

AMERICA

DM:

101W,

EX:

135W,

TCA:

135W

net

NOTE

-----

result

continuing

changes

and

improvements

during

the

pro¬

duction

run,

minor

difference

may

found

between

early

and

later

machines.

Refer

TEAC

TECHNICAL

INFORMATION

sheet

for

information

concerning

modifications.

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

0^4

(CK8

lbs),

0V300

(O'VLO

ozs)

FLUTTER

METER

Meguro

Denpa

Co.,

Model

MK665B

(preferred)

Sentinal

Co.,

Model

FL-3D-1.

DIGITAL

COUNTER

Range

Hz^lOO

kHz

BANDPASS

FILTER.TEAC

Model

M-206A

kHz)

VTVM.

Hewlett-Packard

Co.,

Model

4302B

OSCILLOSCOPE

General

purpose

BLANK

TAPE

TEAC

YTT-8013

and

YTT-8003

TEAC

TEST

TAPE.

Refer

the

page

EMPTY

REEL

TEAC

RE-702

(2"

hub)

and

RE-701

(4"

hub)

RE-1002

10-1/2"

reel

TEAC

TEST

SET*.M-826A

Use

the

TEAC

M-826A

Test

Set

recommended.

This

set

incorporates

VTVM,

Audio

Oscillator,

Channel

Selecting

switch.

Variable

Atte¬

nuator,

Monitor

Speaker

and

Cables.

TEAC

M-826A

measures

the

EMS

value

the

Voltage

0.775V).

Characteristics

this

Test

Set

are

similar

the

standard

VU-meter.

Fig.

3-3

Spring

Scale

-4

TEAC

TEST

TAPE

-VTT

SERIES

PLAYBACK

ONLY

TEAC-YTT

Series

Test

Tapes

are

designed

for

aligning

and

checking

the

playback

system

performance

any

tape

recorder.

They

have

been

manufactured

within

tolerance

the

NAB

Stand¬

ard,

and

the

recorded

signal

format

has

been

arranged

for

maximum

convenience

during

test

procedures.

YTT-l002/1003/1004

(FOR

PLAYBACK

ALIGNMENT)

TYPE

YTT-l

002

YTT-l

003

YTT-l

004

REMARKS

TITLE

PLAYBACK

ALIGNMENT

TAPE

WIDTH

1/4

INCH

BASE

MIL

1-1/2

MIL

TAPE

SPEED(ips)

3-3/4

7-1/2

Accuracy:

0.2%

Wow

and

Flutter:

0.1%(WRMS)

RECORD

TRACK

FULL

TRACK

Azimuth

Angle

Tolerance:

90°±1.5

RECORDING

STANDARD

NAB

CHARACTER¬

ISTICS

TIME

CONSTANT

(vs)

3180+90

3180+50

TOLER¬

ANCE

WITHIN

0.5dB

31.5-4KHz

31.5-lOKHz

31.5-16KHz

WITHIN

8K-14KHZ

12.5KHz-20KHz

18K-22KHZ

SECTION

FREQUENCY

(Hz)

USE

YTT-l002

YTT-l003

YTT-l004

400

OdB

30s

Operating

Reference

Level

Calibration

7,500

15,000

-lOdB

60s

Azimuth

Alignment

400

RECORDED

SIGNAL

14,000

12,000

10,000

8,000

6,300

4,000

2,000

1,000

500

250

125

31.5

20,000

18,000

16,000

12,000

10,000

6,000

4,000

2,000

1,000

500

250

125

31.5

22,000

20,000

18,000

16.000

12,500

10,000

6.300

4,000

2,000

1,000

500

250

125

31.5

15s

each

Frequency

Response

Check

OdB

recording

level

6dB

below

the

T.H.D.

level

YTT-2002/2003/2004

(FOR

TAPE

SPEED

AND

WOW-FLUTTER

TESTING)

TYPE

YTT-2002

YTT-2003

YTT-2004

REMARKS

TITLE

TAPE

SPEED

AND

FLUTTER

TSET

TAPE

WIDTH

1/4

INCH

BASE

MIL

1-1/2

MIL

TAPE

SPEED(ips)

3-3/4

7-1/2

WOW

AND

FLUTTER

0.07%

0.05%

0.03%

Weighted

RMS

RECORDED

WIDTH

FULL

TRACK

RECORDED

SIGNAL

FREQUENCY

3,000Hz

LEVEL

-5dB

OdB:

Operating

Reference

Level

TIME

MINUTES

Since

these

tapes

will

your

own

reference

standard,

care

should

exercised,

handling

and

storage,

not

expose

them

any

magnetic

flux

which

might

deteriorate

completely

destroy

the

recorded

signals.

High

temperature

and

humidity

are

also

harmful

the

tape.

TAPE

TRANSPORT

PARTS

LOCATION

Right-

Reel

Motor

Brake

Solenoid

—

Capstan

Solenoid

Flywheel

Control

—

PC.Board

Fuse

Holder

Left

Reel

Motor

—

Brake

Solenoid

(

-Cl

—

Freq.

Selector

50Hz^60Hz

Fig.

5-1

Tape

Transport

Parts

Location

NOTE

For

ordering

parts,

refer

the

exploded

view

the

PARTS

LIST.

accompanying

listing

provides

the

correct

part

numbers.

Fig.

6-1

Rear

Panel

and

Bottom

Plate

Fig.

6-2

Wood

Sides

Most

amplifier

checks

and

adjustments

can

made

from

the

bottom

with

the

plate

removed.

These

adjustments

should

performed

experienced

technicians,

and

then

only

when

going

through

the

complete

test

and

check

pro¬

cedures

the

unit

which

being

tested.

HEAD

ASSEMBLY

REPLACEMENT

change

the

head

assembly

unit,

remove

the

mounting

screws.

Note

the

positions

the

wires

the

circuit

board

before

unsoldering.

Solder

wires

the

new

assembly

ex¬

actly

the

same

positions.

Refer

Fig.

8-3

Head

Wiring

Section.

Fig.

6-3

Head

Assy

Removal

REMOVAL

CAPSTAN

MOTOR

Remove

the

screws

holding

the

capstan

motor.

Unsolder

the

wires

connecting

the

capstan

motor.

Remove

the

screws

holding

the

capstan

motor.

Watch

for

the

Rubber

Cushions.

Loosen

the

set

screws

(hex

head)

pulley

and

lift

off

pulley.

NOTE

Clean

the

drive

belt

with

TZ-261B

and

the

motor

pulley

and

capstan

flywheel

with

TZ-261A.

sure

note

the

color

code

the

wires

you

can

replace

them

correctly.

Fig.

6-4

Capstan

Motor

Removal

REMOVAL

CAPSTAN

ASSEMBLY

Unscrew

capstan

cover

(front

panel).

Remove

screws

from

rear

bracket,

allow

bracket

drop

toward

floor

case.

Remove

capstan

belt.

Loosen

screws

capstan

ass'y

flywheel.

Remove

flywheel.

Remove

screws

capstan

ass'y.

Gently

move

capstan

ass'y

and

down

until

slides

out

panel.

Fig.

6-5

Capstan

Assy

Removal

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