Sony TC-FX4040 Manuale utente

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SERVICE

MANUAL

AEP

Model

‘Dolby’

and

the

double-D

symbol

are

the

trade

marks

Dolby

Laboratories

Licensing

Corporation.

Noise

reduction

system

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

SPECIFICATIONS

Tape

Transport

Mechanism

Type

TCM-150V4.

Recording

system

Total

harmonic

distortion

4-track

2-channel

stereo

1.0%

(with

Sony

METAL-ES

cassette)

Fast-forward

and

rewind

time

Frequency

response

Approx.

100

sec.

(with

C-60

cassette)

DOLBY

OFF

Bias

frequency

105

kHz

With

TYPE

cassette

(Sony

METAL-ES)

Signal-to-noise

ratio

(NAB,

peak

level)

17,000

16,000

(+3

dB)

13,000

(+3

dB,

recording)

16,000

(DIN)

With

TYPE

cassette

(Sony

UCX)

17,000

14,000

(+3

dB)

—

16,000

(DIN)

With

TYPE

cassette

(Sony

HF-S)

16,000

13,000

(DIN)

Wow

and

flutter

0.05%

WRMS

(NAB)

+0.14%

(DIN)

SAFETY-RELATED

COMPONENT

WARNING!!

Inputs

Microphone

inputs

(phone

jacks)

Sensitivity

0.25

(-70

dB)

COMPONENTS

IDENTIFIED

SHADING

AND

MARK

For

low

impedance

microphone

THE

SCHEMATIC

DIAGRAMS

AND

THE

Line

inputs

(phono

jacks)

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

Sensitivity

77.5

(—20

dB)

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

Input

impedance

kilohms

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

Outputs

Line

outputs

(phono

jacks)

MANUAL

SUPPLEMENTS

PUBLISHED

SONY.

Output

level

0.44

(-5

dB)

load

impedance

4.7

kilohms

Load

impedance

over

kilohms

Headphone

output

(stereo

phone

jack)

Output

level

~28

load

impedance

8ohms

"cassette

Dolby

switch

B-TYPE

C-TYPE

TYPE

(Sony

METAL-ES)

55dB

65dB

TYPE

(Sony

UCX)

TYPE

(Sony

HF-S)

Continued

page

—

STEREO

CASSETTE

DECK

SONY.

TC-FX4040

General

Power

requirements

220

ac,

50/60

(240

adjustable

authorized

Sony

personnel)

Power

consumption

‘

watts

Dimensions

Approx.

430

105

245

(w/h/d)

(17

41/,

93/,

inches)

including

projecting

parts

and

controls

Weight

Approx.

3.6

Ibs

02)

Note

This

appliance

conforms

with

EEC

Directives

76/889

and

82/499

regarding

interference

suppression.

TC-FX4040

SECTION

OUTLINE

1-1.

FUNCTION

CONTROLS

TAPE

COUNTER

RESET

PEAK

LEVEL

METER

Rearieey,

FULL

LOGIC

FEATHER

TOUCH

MECHANISM

SEIT

SEG

OIE,

HEADPHONES

TC-FX4040

Each

number

the

text

keyed

that

the

illustra-

tions

pages

Front

panel

(Fig.

[A])

POWER

switch

Cassette

holder

TAPE

COUNTER

and

RESET

button

The

tape

counter

provides

numerical

reference

point

while

recording

which

can

used

index

recorded

cassette.

reset

zero,

press

the

RESET

button.

Function

indicators

PEAK

LEVEL

METERs

These

meters

show

the

peak

input

level

each

channel

during

recording,

and

recorded

levels

the

playback

mode.

(eject)

button

Press

this

button

open

the

cassette

holder.

HEADPHONES

jack

(stereo

phone

jack)

(rewind)

key

Press

this

key

advance

the

tape

rapidly

the

left.

also

used

for

the

auto

play

and

review

function.

tions.

(playback)

key

Press

this

key

playback

the

cassette.

record,

press

this

key

while

holding

the

key

down.

The

tape

transported

the

right.

(stop)

key

Opp

(fast-forward)

key

Press

this

key

advance

the

tape

rapidly

the

right.

also

used

for

the

cue

function.

tions.

(pause)

key

Press

this

key

stop

the

tape

running

for

moment

dur-

ing

recording

playback.

This

key

also

used

for

the

cue

and

review

functions.

(record

muting)

key

Press

this

key

eliminate

unwanted

material

and

in-

sert

blank

space

during

recording.

(record)

key

Press

this

key

together

with

the

key

start

recording.

DOLBY

NR*

switch

For

recording

playback

with

Dolby

B-type

system,

set

the

DOLBY

switch

For

recording

playback

with

Dolby

C-type

system,

set

For

recording

without

Dolby

system,

set

OFF.

*“Dolby”

and

the

double-D

symbol

are

trade

marks

the

Dolby

Labora-

tories

Licensing

Corporation.

Noise

reduction

system

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

The

Dolby

system

reduces

tape

hiss

and

improves

the

signal-to-

noise

ratio

low-level

high-frequency

signals.

@TAPE

select

buttons

Depress

one

the

TAPE

select

buttons,

depending

which

type

tape

you

use.

The

optimum

bias

current

adjustment

for

recording

and

the

optimum

equalization

adjustment

for

both

recording

and

playback

are

set.

@®

MIC

jacks

(phone

jack)

Any

low-impedance

microphone

equipped

with

phone

plug

may

used.

REC

LEVEL

(recording

level)

controls

These

controls

adjust

the

recording

level.

Rear

panel

(Fig.

[B])

®LINE

(line

input)

jacks

(phono

jack)

tape

outputs

from

amplifier

for

tape

recording

and

line

outputs

from

another

tape

deck

when

dubbing

tape

from

that

unit.

LINE

OUT

(line

output)

jacks

(phono

jack)

tape

inputs

from

amplifier

for

playing

back

tape

and

line

inputs

from

another

tape

deck

for

dubbing

tape

onto

that

unit.

@SYNC

connector

(3-pin)

For

synchro

recording,

connect

the

SYNC

connector

the

turntable

system.

For

further

details,

refer

the

instruction

manual

the

Sony

turntable

system.

CONTROL

connector

Connect

the

CONTROL

OUT

connector

Sony

audio

equipments

equipped

with

4-pin

remote

control

connector.

CONTROL

OUT

connector

Connect

the

CONTROL

connector

Sony

audio

equipments

equipped

with

4-pin

remote

control

con-

nector.

power

cord

1-2.

BLOCK

DIAGRAM

JIG!

LINE

nx]

aoe

qa-5

J30I-1

MIC

AMP

iyo

icsouv21

Ato]

RPIOI-1

AMP

epee

1€304(V4)

1c304(/4)

(9)

OFF

$303-2

RY301

CTION

730)

BIAS

OSC

HEI!

BIAS

OSC

EF206-36

0301,

0302

Q403

REMOTE

CONTROL

SIRCS

SWITCH

402

YPE

NORMAL

FYPE

HETAL

RELAY

DRIVE

‘

Q306

‘

et)

cn4oi

9404

REMOTE

CONTROL

rad

; :

RESET

((3)

TC-FX4040

RvIOl

REC

LEVEL

DOLBY

AMP

10320

pear

63)

TC-FX4040

JI02

[Line

our

alo!

LINE

MUTING

fEADEHONE

$363

S&S

1¢3031V2)

HEADPHONES

R-CH

(59V)

DOLBY

were

onwve

“4

DI0t

102

$302

$301

Icl0l

[PEAK

LEVEL

METER

}

Df]

OFF

Df]

B-TYPE

[wove

$304-2

$305-2

BIAS

SWITCH

REC

SWITCH

Q305~

307

Q417

$304-3

orr

[fs

‘

$305-3

OFF

{fg

$304-4

oFF

[IS

“4

BIAS

SWITCH

‘{tyPEw]

[typen]

[TyPew|

[TYPE

RESET

CUE

MUTING

SWITCH

Q418

LINE

MUTING

SWITCH

Qai9

(8)

(9)

RECT

0502-505

Cees

(59V)

REEL

MOTOR

{Py

Q4l2

SWITCH

MOTOR

DRIVE

Q4ll

POWER

SWITCH

REC

MUTE

—_LINE

MUTE

ety)

6.5V

REG

avis

0501,0502,05

MOTOR

FWD

REEL,

MOTOR

M402

Wal

ats

REEL

MOTOR

REV’

9407-410

1501

eal

TRANSFORMER

MECHANISM

PSTAN

CONTROLLER

HEAD-PM

PM02

CAPSTAN

140i

/\J

HEAD

SOLENOID

PAUSE

-PM

PM401

PAUSE.

SOLENOID

B—

~65V

REG

(-62V)

19602,0604,0600

TURN

DETECTION

Pet

ail

$ai0

sao

$408

s407

$406

$405

405

DETECTION

(4)

d°

“a

fe)

“a

2i)

({?)

(5)

Pak

‘

“

lan

X401

(hh

@©®®

ray,

HALF

p42

D4i3

DETECTION

itt

$403

$402

cassetre

TAPE

DET

accipeNe

PREVENTION

TC-FX4040

SECTION

DISASSEMBLY

Note:

the

disassembly

procedure

the

numerical:

order

given.

CASE

Remove

four

(4)

screws

and

case.

Remove

screws,

+BVTT3

(two).

FRONT

PANEL

Remove

counter

belt

and

temporarily

hang

the

protrusion

the

—

mechanism.

chassis.

protrusion

mechanism

chassis

counter

belt

Remove

screw,

tBVTT3

and

solder

lug.

Remove

screws,

+BVTT3

(

three).

Pull

front

panel

forward.

Take

care

not

break

lead

wires

extracting

from

boards.

Front

panel

contains

six

(6)

boards.

Unlock

front-panel

claws

(both

sides)

from

chassis,

TC-FX4040

DECK

MECHANISM

Remove

screws,

+BVTTS

(two).

BOARDS

FROM

FRONT

PANEL

Remove

appropriate

screws

unlock

appropriate

claws

from

boards

shown.

screws,

#BTP3

screws,

+BTP3

screws,

+BTP3

screws,

+BTP3

REC

LEVEL

control

power

switch

board

photo

coupler

board

function

button

block

meter

board

AUDIO

BOARD

‘

‘N

screw,

*BVTT3

‘x

audio

board

shield

plate

TC-FX4040

LOCATION

PRINTED-CIRCUIT

BOARDS

remote-control

board

photo-coupler

board

audio

board

Pin-jack

board

detection-switch

board

Power-switch

board‘

headphone

jack

board

function-switch

board

meter

board

REC

LEVEL

control

board

RECONNECTING

CONNECTORS

white;

4-pin

from

function-switch

block

P52

white;

8-pin

from

deck

mechanism

red;

4-pin

from

;

function-switch

block

gray;

3-pin

from

white;

6-pin

shielded

cable

from

deck

mechanism

deck

mechanism

white;

2-pin

shielded

cable

from

;

gray;

6-pin

from

deck

mechanism

deck

mechanism

TC-FX4040

SECTION

ADJUSTMENTS

3-1.

MECHANICAL

ADJUSTMENTS

PRECAUTION

Clean:

the

following

parts

with

denatured-

not

use

magnetized

screwdriver

for

the

alcohol-moistened

swab:

adjustments.

record/playback

head

pinch

roller

After

the

adjustments,

apply

suitable

locking

erase

head

rubber

belts

compound

the

parts

adjusted.

capstan

The

adjustments

should

performed

with

the

Demagnetize

the

record/playback

head

with

rated

power

supply

voltage

unless

otherwise

head

demagnetizer.

noted.

Torque

Measurement

Head

Height

Adjustment

Prepare

adjustment

cassette

shown

below,

Tome

PRA

Meter

reading

mirror

cassette.

Forward

CQ-102C

eteoe

Back

Tension

CQ-102C

©.

eee

Rewind

C2208

12.0

onincn)

C-120

Cut

out

hatched

Pinch

Roller

Pressure

Measurement

tape

cassette

portions.

2...

playback

mode

and

viewing

from

the

front,

—

Playback

Mode

—

adjust

the

head

heights

eliminate

tape

curl

and

tape

twist

the

portions

shown

the

Slowly

return

the

pinch

roller

atrows

and

read

the

spring

scale

just

when

the

pinch

roller

starts

rotating.

(The

capstan

should

first

contact

here.)

erase

head

—

record/playback

head

eee

‘

tension

gauge

3-513-237-01

(t=0.1)

200—300

g-cm

bebe

eae

ser

(2,774.16

oz-inch)

Shim,

head

height

adjustment

3-2.

ELECTRICAL

ADJUSTMENTS

Note:

The

adjustment

should

performed

the

order

given

this

service

manual.

The

adjustments

should

performed

for

both

L-CH

and

R-CH.

TAPE

switches

are

automatically

set

according

the

tape.

TYPEI

NORMAL

TYPE

II:

CrO2

CS40(CS-412)]

TYPEIV :METAL

Switches

and

controls

should

set

follows

unless

otherwise

specified.

DOLBY

switch:

OFF

Standard

Record:

Deliver

the

standard

input

signal

level

the

input

jack

and

set

the

REC

LEVEL

control

obtain

the

standard

output

signal

level.

Standard

Input

Level

0.25V

(-104B)

Standard

Output

Level

LINE

OUT

CABSV

(508)

TC-FX4040

Speed

Adjustment

Procedure:

Mode:

playback

speed

checker

LFM-30

digital

frequency

test

tape

counter

WS-48A

(3kHz,

OdB)

LINE

OUT

Specification:

Speed

checker

Digital

frequency

counter

Frequency

difference

between

the

beginning

and

the

end

the

tape

should

within

0.8%

(25Hz).

Adjustment

Location:

—

capstan

motor

—

adjustment

control

inside

motor

TC-FX4040

Record/playback

Head

Azimuth

Adjustment

Procedure:

1...

Mode:

playback

test

tape

P-4-A063

VTVM

(6.3kHz,

—10dB}

Playback

Level

Adjustment

Procedure:

Mode:

playback

test

tape

P-4-L300

(315Hz,

OdB)

LINE

OUT

Turn

the

adjustment

screw

for

the

maximum

output

levels.

these

levels

not

match,

turn

the

adjustment

screw

until

both

output

levels

match

together

within

1.0dB.

0.435V.

LINE

OUT

(ea)

Adjust

RV104

(L-CH)

and

RV204

(R-CH).

Specification:

LINE

OUT

level:

0.46

—

0.42V

(—4.5

—

—5.5dB)

Level

difference

between

channels:

less

than

0.5dB

(0.05V)

Check.

that

the

LINE

OUT

level

does

not

change

playback

mode

while

chaging

the

Screw:

mode

from

playback

stop

several

times.

position

—»

angle

L-CH

R-CH

peal

peek;

Adjustment

Location:

Phase

Check

;

Mode:

playback

—

audio

board

—

test

tape

P-4-A063

oscilloscope

;

(6.3kHz,

—10d0B)

RV104

-L-CH

k2Q

R-CH

LINE

OUT

Screen

pattern

DOOOGS

phase

45°

90°

135°

ice

eae

good

wrong

Record:

Setting

Proced'

os.

Adjusti

jjustment

VTVM

[7]

for

the

maximum

not

match,

turn

both

.output

.OdB.

—»

angle

R-CH

peak

oscilloscope

Playback

Level

Adjustment

Procedure:

Mode:

playback

test

tape

P-4-1.300

(315Hz,

OdB)

0.435V

(—5aB)

LINE

OUT

Adjust

RV104

(L-CH)’

and

RV204

(R-CH).

Specification:

LINE

OUT

level:

0.46

—

0.42V

(—4.5

—

—5.5dB)

Level

difference

between

channels:

less

than

0.5dB

(0.05V)

Check

that

the

LINE

OUT

level

does

not

change

playback

mode

while

chaging

the

mode

from

playback

stop

several

times.

Adjustment

Location:

—

audio

board

—

RV104

RV204

(L-CH)

(R-CH)

Record

Bias

Adjustment

Setting:

REC

LEVEL

control:

standard

record

(See

page

11)

Procedure:

Mode:

record

osc

blank

tape

CS-17

10k2

attenuator

ott

’

oxeKe)

LINE

315Hz

het

25mV

(-30dB)

Mode:

playback

recorded

VTVM

portion

LINE

OUT

ADjust

CT101

(L-CH)

and

CT201

(R-CH)

that

the

LINE

OUT

level

10kHz

signal

OdB

+0.5dB

relative

that

315Hz.

Adjustment

Location:

—

audio

board

—

(L-CH)

(R-CH)

TC-FX4040

TC-FX4040_

Record

Level

Adjustment

Setting:

REC

LEVEL

control:

standard

record

(See

page

11)

Procedure:

Mode:

record

osc

blank

tape

€)

CS-17

_2tenvator

;

—

LINE

315Hz,

0.25V

(1008)

Mode:

playback

recorded

portion

LINE

OUT

Adjust

RV102

(L-CH)

and

RV202

(R-CH).

Specification:

LINE

OUT

level:

0.46

—

0.42V

(—4.5

—

—5.5dB)

Adjustment

Location:

—

audio

board

—

Rv202

RV102

(R-CH)

(L-CH)

Semiconductor

Lead

Layouts:

2S8A1175

CX10032A

2$D1020

cuz

letter

side

IR2E02

M50761-417P

M5218L

TC9310N-071

line

Wont)

slit

;

280945

(Top

view)

DTA114ES

DTA144WS

DTC114ES

EC’

2SB808

;

2SC2603F

HZ6A3L

2SD1012

HZ6B3L

1$S202-1

10E2

11E2

cathode

2SB731

2SD809-K

letter

side

GL-9PG4

cathode

anode

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