Teac W-760R Bedienungsanleitung

TEAC

SERVICE

MANUAL

CONTENTS

SPECIFICATIONS

scccrrecteeccreteeee

eter

tere

tees

nec

reece

ft &R

ADJUSTMENT

AND

CHECKS

veers

CHES

EXPLODED

VIEWS

AND

PARTS

LIST

+------rrrrrrree

SARI

BOARDS

AND

PARTS

LIST

rrr

16.

BRM

CN-YUA

INCLUDED

ACCESSORIES:

rrrsrsrsrttreresttererererenees:

‘tian

Effective

November,

1995

D00215700A

W-760R

SPECIFICATIONS

Track

System

Track,

2-Channe!

Stereo

Heads:

Deck

Playback

(Rotating)

Deck

Erase

and

Record/Playback

(Rotating)

Type

Tape

Cassette

tape

C-60

and

C-90

(Philips

type)

Tape

Speeds

4.76

om/sec

(1-7/8

ips)

9.5

cm/sec

(3-3/4

ips)

(High

speed

dubbing)

Motors:

servo

motors

ea.

deck)

Wow

and

Flutter

0.06

(WRMS)

Frequency

response

(Overall,

dB):

25-19,000

Hz,

Metal

tape

25-18,000

Hz,

CrO,

tape

25-17,000

Hz,

Normal

tape

Signal

Noise

Ratio

(Overall)

(NR

off,

THD

Level,

Weighted)

(Dolby

on,

over

kHz)

(Dolby

on,

over

kHz)

Fast

Winding

Time

Approximately

110

seconds

for

C-60

Input

Line:

mV,

ohms

Outputs

Line:

0.46

for

load

impedance

ohms

Headphones

ohms

Power

Requirements

120/230

AC,

50-60

(General

Export

model)

120

AC,

(U.S.A./Canada

model)

230

AC,

(Europe

model)

240

AC,

(Australia

model)

Power

Consumption

Dimensions

D):

435

147

297.5

(17-1/8"

5-13/16"

11-3/4"

)

Weight

(net):

4.2

(9-1/4

Ibs.)

Standard

Accessories

input-output

connection

cords

Specifications

were

determined

using

metal

tape

except

noted.

;

@improvements

may

result

specification

feature

changing

without

notice.

Dolby

noise

reduction

and

Pro

headroom

extension

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

Pro

originated

Bang

Olufsen.

“DOLBY”,

the

double-

symbol

and

“HX

PRO”

are

trademarks

Dolby

Laboratories

Licensing

Corporation.

boy

HEX

AKhDyD2FeURAID

AFUT

A»

KBR

Deck

BHA

Deck

RB/

BEN»

HEAy

teAsr-7

C-60,

C-90947

Atybr-TF

7>-T#E

4.8cm/sec,

9.5em/sec

(FARE

7H)

E-F7=—

Deck

DCU-#KRE-9—-*X

Deck

DOH—-#E-9—~x

99-7534I—

0.06%(W.

RMS)

0.1%

(W.

Peak)

FRRUSE

GS)

AFI:

25~20,000Hz

(30~19,000Hz

3dB*)

Jo-dL:

25~19,000Hz

(30~18,000Hz

3dB*)

J-Vib:

25~18,000Hz

(30~17,000Hz

3dB*)

SNES

58dB

(NR

OFF,

MEER

NIL)

69dB(KJLDE-B

ON,

CCIR-

ARM)

79dB(KJLDE-—C

ON,

CCIR-ARM)

SABE

110#(C-60

5-7)

547:

97mV

(ARAL

YVE-FYZR

50k

54:

0.52V

(BBY

VE-FYZ

50k

QUE)

E74

:8Q

Bik

100V

AC,

50-60Hz

BREA

14W

WET

435

144

298mm

4.2kg

;

*tigda

AtAI—

F24(1

HB),

RAAB,

OPHIR

LIKRBERS,

SRE

—-PEBAL

THELKLOCT.

;

OLS

KOMI,

BEOR

MPH

BETS

CEMEDETS

@*«

His,

ARERR

LES

(EIAJ

CP-2311)

BUBIKED

MEK

ESbOCT

NVE-/4

RUFF

YRUUXTONy

BI-LEIA

FUYaVIs

EVE-SRIRU-KRITEYYYTIA—R

L—Y

YDS

ORMBICBIOZ

BEEN

THET,

Told

NUTS

EAWICYOBRCS.

RILE-—,

DOLBY,

FFL

D#S

RUHX

FOE

BILE-F

KU-AXSALVVYYII—-RL—-Y

VOBRRECS.

W-760R

ADJUSTMENT

AND

CHECKS

«SS

2-1

MECHANICAL

ADJUSTMENT

2-1-1

Wow

and

flutter

(playback

method)

Note

:In

both

FWD

and

REV

play

modes,

these

measurements

should

made

the

beginning,

middie,

and

the

end

the

tape.

Connect

wow

-and-flutter

meter

the

deck

shown

Fig.

2-1.

Load

and

play

TEAC

MTT-ILIN

test

tape.

Check

that

the

readings

the

wow~and-flutter

meter

within

0.15%

(WRMS).

OUTPUT

2-1-2

Tape

speed

Connect

frequency

counter

the

deck

shown

Fig.

2-1.

Load

TEAC

MTT-111N

test

tape

and

play

FWD

direction

the

beginning

the

test

tape.

Adjust

each

variable

resistor

get

the

following

values.

CONTROL

PCB

—

Short

HIGH

SPEED

Open

LOW

SPEED

2-1

ORE

21419975549

(BAK)

FE:

FWD,

REVESA

—

OARS,

BK)

SHES.

lL.

Fig.

2-1D

E399

FPG

R-V-EERT

SS.

2FALF-TMTT-1LINEBETS.

3.97+75

7§820.15

(WRMS)

CHSC

LEER

FS.

Frequency

Counter

2-1-2F7-FAE-F

lL.

Fig.

2-LOK3

ICRA

ERET

2.FARF-PMTT-1LLUN

OBIS

OME

FWD

CHET

AREBUBA

ROMBA

KS,

SEAM

(Fig.

2-2)%

ETS.

HIGH

speed

check

—y

——

LOW

speed

}

VR2

5,840~6,160Hz

2,995~3,005Hz

pLaysack

(measured

value

Deck

high

speed)

30Hz

FytLALRZE-K

30Hz

2,995

~3,005Hz

HIGH:

speed

rec/pLay

LOW

speed

VR4

Fig.

2-2

4.1%

play

mode,

check

that

the

following

values

are

obtained

the

beginning

and

end

the

tape.

Speed

drifting

Within

120Hz

(HIGH

speed)

Within

60Hz

(LOW

speed)

BIBDD

OBR

ECHEL.

BENE

ETERS

ZESIR:

120H2LIN

RE-F)

6OHzLIN

(a—-RE-~

W-760R

2-1-3

Reel

torque

2-1-3

U—JIbR

IVD

Load

the

cassette

torque

meter

the

deck

and

read

Aey

KALB

A-FH

IKE

SHED

FILOMAN

CHS

the

pointer

indication

the

dial

scale

for

each

tape

CERES

transport

operation.

The

measured

torque

should

FADFTIAT

ERIM

:35~70g*cm

within

the

following

specified

values.

NyPIFUvYVaybhw7

:2.5~6g*cm

Take-up

70g°*cm

BEY

/ARLRIVZ

80~170g*cm

Supply:

2.5

6g+*cem

FF/REW:

170g+cm

Voltage

Conversion

(General

export

models

only)

sure

remove

the

power

cord

from

the

outlet

before

repositioning

the

voltage

converter

switch.

VOLTAGE

Locate

the

voltage

selector

the

rear

panel.

SELECTOR

Using

flat-bladed

screwdriver,

set

the

appropriate

230

120

position

according

your

area.

2-2

ELECTRICAL

ADJUSTMENT

2-2-1

Precautions

Before

performing

adjustments

and

checks

clean

and

demagnetize

the

entire

tape

path.

general,

adjustments

and

checks

are

made

the

order

Lch

then

Rch.

Double

REF.

Nos.

indicate

Lch

/Rch.

(Example

;

R11/R21)

OdB

referenced

0.775V.

The

voltmeter

used

the

procedures

must

have

input

impedance

IMQ

more.

;

Unless

specified

otherwise,

adjustments

and

checks

are

made

FWD

direction.

2-2-2

Adjustment

locations

243£(@/At

W-760R

2-2

7YTROWE

2-2-1

PRORMS

MBO,

—~TEAROTM

CRE

HRW.

BicSEOR

UBD.

Bla

Lch,

Roh

OMY

SW.

RU/R2DE

DIENT

OZABSS

Leh

Rch®ARULET.

0dB=0.775V

HEKBATSUAVHOANT

VE-FVAWIMQUED

HOLMER

SW.

RIUHEOKUIBA,

BES

EOWIE

FWD

ACTS

CHEW,

Grece

L103 L203

C125

~{Ho

C225

R14

R24

rec/PLay

PLAYBACK

Ri1

OPO

rea

Fig.

2-3

R13

ec)

pos

MAIN

PCB

L101

460

C118

C218

‘L201

W-760R

2-2-3

Playback

performance

B44

TEAC

test

tapes:

MTT-150C

For

Dolby

level

calibration

MTT-25702:

For

playback

frequency

response

check

NORMAL

tape

Deck

settings:

Mode

PLAY

DOLBY

Switch

OFF

Head

azimuth

adjustment

FUT

ARE

Connection

Fig.

2-5

Check

“adjust

FWD,

REV

respectively

FWD,

REVEnZn

27)

MTT-5512

MTT-

150C

MTT-25702

(12.5kHz)

For

S/N

check

NORMAL

tape

Azimuth

screws

FUT

AREAL

OUTPUT

Phase

within

45°

#8:

45°

(Fig.

2-6)

OUTPUT

Maximum

output

level

R-ch

Leh,

Roch

SHARA

FWD

azimuth

REV

azimuth

DOLBY

level

RIDE

bAly

Playback

output

level

BEAL

AIL

Meter

level

A-F-VAIP

PHONES

output

level

PHONES

HAVAIL

Playback

frequency

response

BER

Ree

Connection

Fig.

2-7

FWD

PLAY

Connection

Fig.

2-4

FWD/REV

PLAY

Connection

Fig.

2-8

Connection

Fig.

2-4

MTT-

150C

MTT-

150C

MTT-

1500

MTT-

150C

MTT-25702

R1I1/R21

R12/R22

;C118O,/C2180

-6dB

(388mV)

OUTPUT

454

1dB

(411mV~518mvV)

PEAK

LEVEL

METER:

mark

1dot

PHONES

-19+3dB_

(61.6mV~

123mV)

Ref.

output

level

AEWA

AIL

load

Bis

—4dB

12.5k(Hz)

Playback

S/N

ratio

RES/NEE

Attenuator

Connection

Fig.

2-4

Oscillator

LINE

Distorion

Analyzer

MTT-5512

Playback

the

leader

tape

portion

Check

OUTPUT

FTE

Oscilloscope

Fig.

2-4

Basic

test

setup

1kHz

Filter

voltmeter

Ratio

ref.

level

noise

REWALANIVE

KOK

W-760R

2-2-4

Monitor

performance

£24

—H%

Deck

settings:

Mode

REC-

PAUSE

DOLBY

Switch

OFF

Min.

LINE

Connection

Fig.

2-4

LINE

IN:

OUTPUT

input

level

REC

LEVEL

Control!

:MAX

400Hz/—

19dB

—45

3dB

UR)

RHI

BALANCE

Control

:Center

(87mV)

(327mV~652mV)

Specified

After

adjusting,

LINE

input

LINE

IN:

REC

LEVEL

OUTPUT

not

move

level

Connection

Fig.

2-4

400Hz/—

9dB

—

4.5dB

(Specific

position)

URE

(275mV)

BALANCE

(462mV)

WELD

RADA

;

GREK)

—+-

10.

Monitor

Ratio

ref.

level

LINE

IN:

S/N

ratio

E-5—

Connection

Fig.

2-4

signal

60dB

min.

BALL

ULE

S/N

JAZOL“E

Oscilloscope

voltmeter

MAIN

PCB

C1184

cais

voltmeter

OUTPUT

Fig.

2-5

Test

setup

for

azimuth

check

Fig.

2-7

Test

setup

for

DOLBY

level

adjustment

voltmeter

O°(in

phase)

45°

90°

135°

180

°(out

phase)

(

falizte

)

;

(Be24B

)

W-760R

PHONES

©|

CID

DES

Test

load

resistors

Fig.

2-6

Confirming

phase

relationship

Fig.

2-8

Test

setup

for

PHONES

check

W-760R

2-2-5

Recording

performance

&a*%

Deck

settings:

Mode

REC/PLAY

DOLBY

Switch

OFF

REC

LEVEL

Control

Specified

position

#7E(Zia

(Item

BALANCE

Control

Specified

position

#3E

Zia

(Item

TEAC

recording

test

tapes:

MTT-5512

For

NORMAL

MTT-5562

For

CrO,

MTT-5571

For

METAL

Bias

osc

frequency

NAFTA

Essind

pees

Connection

Fig.

2-9

TAPE:

MTT-5512

Mode

REC

LINE

IN:

signal

Ries

P303-2:

100kHz

Step

coil

ATITP

a4)b

Record

bias

REINA

MPX

filter

MPX

J4/b9—

Record

level

BELA

Connection

Fig.

2- 10

TAPE

MTT-5571

Mode:

REC

Connection

Fig.

2-4

TAPE

MTT-5512

Connection

Fig.

2-4

Mode

REC

Connection

Fig.

2-4

TAPE

MTT-5862

MTT-5571

LINE

IN:

signal

L103/L203

LINE

IN:

250Hz/

10kHz

—

42dB

(6.16mV)

R14/R24

LINE

IN:

19kHz/—-

12dB

(195mV)

L101/L201

LINE

IN:

RI3/R23

400Hz/-

12dB

(195mV)

TP;

C125/C225

Min.

voltage

ax/)\

OUTPUT

Nearly

equal

level

both

frequencies

RRORS

YAN

SIL)

0.5dB)

30dB

min.

OUTPUT

-7.5dB

(327mvV)

—7.5

1dB

(291mV~367mvV)

Ratio

ref.

level

signal

REM

AIC

Slt

Total

harmonic

distortion

Connection

Fig.

2-4

TAPE

MTT-5512

MTT-5562

MTT-5571

LINE

IN:

A00Hz/-

12dB

(195mvV)

NORMAL

2.0%

less

CrQ,

25%

less

METAL

3.0

less

Overall

frequency

response

Pees

Goad

Connection

Fig.

2-4

TAPE

MTT-5512

MTT-5562

MTT-5571

LINE

IN:

A0Hz~

12.5kHz

—

42dB

(6.16mV)

~-6dB

12.5k(Hz)

Overall

S/N

ratio

MSS/NEL

Connection

Fig.

2-4

TAPE

MTT-5512

MTT-5562

MTT-5571

LINE

IN:

signal

RIES

NORMAL

45dB

min.

CrOQ.

46dB

min.

METAL

46dB

min.

Ratio

ref.

level

noise

EMAL

AIVE

AOE

Erase

efficiency

ARS

Connection

Fig.

2-4

TAPE

MTT-5571

1kHz

B.P.F

LINE

IN:

1kHz/+

1dB

(870mV)

W-760R

Ratio

the

1kHz

recorded

portion

the

erased

portion.

HIHABS

CRABS

REC

MUTE

function

REC

MUTE

Connection

Fig.

2-4

TAPE

MTT-5571

kHz

B.P.F

LINE

JIN:

1kHz/+

1dB

(870mV)

Ratio

the

1kHz

recorded

portion

the

“REC

MUTE

“portion.

SREB

REC

MUTE”

BAO

Lk.

Channel

seperation

FeUAlb

tiNy-Yyay

Connection

Fig.

2-4

TAPE

MTT-5562

1kHz

B.P.F

LINE

Leh

1kHz/—

9dB

(275mV)

Rch

signal

RES

Ratio

Leh

(1kHz)

Reh

(no

signal).

Loh(1kHz)

Roh

HES)

Okt

Adjacent

track

crosstalk

bow

fil

JOAK-F

Connection

Fig.

2-4

TAPE

MTT-5571

LINE

IN:

Lch

signal

Rech

125Hz/-9dB

(275mV)

Frequency

Counter

MAIN

PCB

Fig.

2-9

Test

setup

for

bias

OSC

adjustment

Invert

tape

and

play

Rech

track.

Check

leckage

level

against

the

output

reference

previously

recorded

portion.

>-JSeRe.CBELE

PFO

Roh

HAL

AILO

voltmeter

MAIN

PCB

C125

C225

Fig.

2-10

Test

setup

for

step

coil

adjustment

W-760R

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