Sony TC-D3 User manual

TC-D3/WM-D3

SERVICE

MANUAL

Refer

MDR-W20L/B

Service

Manual

issued

previ-

ously

for

information

headphones

supplied

with

this

set.

TC-D3:

FRANCE

Model

WM-D3:

Model

Canadian

Model

TARE

ode!

ROLAy

SPECIFICATIONS

Recording

system

Wow

and

flutter

4-track,

2-channel

stereo

+0.13%

(DIN)

0.08%

WRMS

(NAB)

Fast

winding

time

Approx.

2min.

with

Sony

Cassette

HF-60

Frequency

response

(DOLBY

OFF)

60-—15,000

+3dB

with

TYPE

(Sony

HF-S)

TYPE

(Sony

UCX-S)

cassette

40-16,000

with

TYPE

(Sony

HF-S)

TYPE

lt!

(Sony

UCX-S)

cassette

S/N

(NAB,

peak

level)

Total

harmonic

distorsion

1.0%

with

Sony

UCX-S

cassette

Line

input/microphone

(stereo

minijack)

(the

same

jack)

microphone

sensitivity

0.83

(-68

dB),

plug

power

type,

for

low

impedance

microphone

Line

input

sensitivity

77.5mV

(47kilohms)

Line

output

jack

(stereo

minijack)

output

level

0.25V

(less

than

4.7

kilohms)

headphones

(stereo

minijack)

load

impedance

8-300

ohms

+20

(at

10%

harmonic

distortion,

load

impedance

ohms)

Input

Output

Power

output

(DC)

Battery

life

(hours)

Receralng

Tape

playback

Batteries

TYPE

(power

output

(Normal)

(Cro,)

0.5

mW)

Sony

SUM-3

(NS)

New

Super

batteries

Approx.

2.5

Approx.

3.5

Sony

Eveready

AM3

alkaline

batteries

Approx.

“

t2,

Model

Photo:

WM-D3

Tape

Transport

Mechanism

Type

MT-WM-D3-24

Power

requirements

Dimensions

Weight

Supplied

accessories

Two

IEC

designation

batteries

(size

AA)

jack

can

used

with

the

following:

Sony

AC-D2

power

adaptor

(optional)

for

use

120V

ac,

(available

US,

Canadian

model)

for

use

240V

ac,

(available

UK,

model)

for

use

220V

ac,

(available

AEP,

FRANCE

model)

for

use

100V

ac,

120V

220V

ac,

50/60

Hz*

(available

model)

There

are

three

types:

one

for

100V

ac,

one

for

120V

and

one

for

220V

ac,

Sony

DCC-70

car

battery

cord

(optional)

for

use

with

car

battery

Approx.

124.2

x34.4

82.3

(w/h/d)

(5x134x3*4,inches)

not

incl.

projecting

parts

and

controls

Approx.

125.4

37.3

x82.3mm

(w/hid)

(6x1'/,x3%,igches)

incl.

projecting

parts

and

controls

Approx.

370g

(13.1

02)

incl.

batteries,

not

incl.

other

accessories

Stereo

headphones

(open-air

type)

(1)

Electret

condenser

stereo

microphone

(1)

Plug

adaptor

(1)

Connecting

cord

(1)

Carrying

case

and

carrying

strap

set)

‘Dolby’

and

the

double-D

symbol

are

the

trade.

marks

Dolby

Laboratories

Licensing

Corporation.

Noise

reduction

system

manufactured

under

license

from

Dolby

Laboratories

Lice

nsing

Corporation.

STEREO

CASSETTE-CORDER

SONTY.

TC-D3/WM-D3

FEATURES

Dolby*

B-type

system

reduces

tape

hiss

noise.

Disc

drive

capstan

servo

system

assures

stable

tape

transport,

reducing

wow

and

flutter.

Tape

selector

offers

two

positions.

@®

5-LED

peak/battery

indicator

shows

both

the

peak

level

and

the

battery

strength.

Plug-in

power

type

microphone

jack

can

supply

power

the

supplied

microphone.

Amorphous

head

for

recording/playback

spovides

wider

dynamic

range.

Stereo

minijacks

can

easily

connected

audio

components.

ANI

AINE

NETO

EEN

RNS

ARN

RTL

ANY

ARENT

ANS

NANI

SSRN

ANIA

ARNT

IONAMIN

NIST

ONSTAR

SERVICING

NOTES

Flexible

Circuit

Board

Repairing

Keep

the

temperature

the

soldering

iron

270°

10°C

during

repairing.

You

can

maintain

the

temperature

the

soldering

iron

around

270°C

using

the

ther-

mal

controller.

not

touch

the

soldering

iron

than

seconds

times

the

same

conductor

the

circuit

board.

not

apply

force

the

conductor

when

soldering

unsoldering.

Tip

soldering

iron

good

wrong

(CaS

Replacing

chip

components

All

chip

components

should

connected

and

disconnect-

ed,

using

tapered

soldering

iron

[temperature

the

iron

tip:

less

than

280°C

(536

F)],

pair

tweezers

and

braid-

wire.

Precautions

for

replacement

not

disconnect

the

chip

component

forcefully.

Otherwise,

the

pattern

may

peel

off.

Never

re-use

disconnected

chip

component.

Dispose

all

old

chip

components.

protect

the

chip

component,

heating

time

for

attach-

ing

the

component

should

within

seconds.

Removing

chip

components

(1)

Removing

solder

electrode

Remove

the

solder

the

electrode,

using

thin

braided

wire.

not

remove

the

solder

the

part

(chip

component)

attached

adjacent

the

electrode.

Land

Pattern

Soldering

iron

(2)

Disconnecting

chip

components

Turn

the

tweezers

with

the

soldering

iron

alternately

applied

both

electrodes,

and

the

chip

component

will

disconnected.

Take

careful

precautions

while

disconnecting,

because

the

chip

component

force-

fully

removed

the

land

may

peel

off.

Never

re-use

disconnected

chip

component.

Turn

Tweezers

(3)

TC-D3/WM-D3

Smoothing

the

soldered

surface

After

disconnecting

the

chip

component,

remove

the

solder

using

braided

wire

smooth

the

land

surface.

Connecting

chip

components

The

value

chip

components

not

displayed

the

main

body.

Take

due

precautions

avoid

mixing

new

chip

components

with

other

ones.

(1)

(2)

Applying

solder

land

one

side

Apply

thin

layer

solder

the

land

one

side

where

the

chip

component

connected.

Too

much

solder

may

cause

bridging.

Small

quantity

solder.

Speedy

soldering

Hold

the

chip

component

the

desired

position,

using

tweezers,

and

apply

the

soldering

iron

the

arrow-marked

direction.

protect

the

chip

compo-

nent,

heating

time

should

within

seconds.

Soldering

iron

Land

Printed

circuit

board

(3)

Speedy

soldering

electrode

the

other

side

Solder

the

electrode

the

other

side

the

same

way

(2)

above.

TC-D3/WM-D3

PARTS

IDENTIFICATION

[1]

(fast

forward)

button

Cassette

holder

[2]

PLAY

(playback)

button

(external

power

input)

jack

[3]

STOP

button

connect

the

power

adaptor

car

battery

cord.

[4]

PAUSE

knob

OPEN

catch

Slide

the

direction

the

arrow,

and

the

tape

stops

Battery

compartment

momentarily.

restart,

slide

back

the

original

position.

[5]

REC

(record)

button

[6]

REW

(rewind)

button

Peak

level/battery

meter

and

indication

selector

PEAK

LEVEL:

shows

the

recording

level.

BATT:

shows

the

battery

condition

OFF:

indication

Tape

counter

and

reset

button

Use

the

counter

index

the

tape

contents.

Push

the

reset

button

set

the

counter

000.

[9]

DOLBY

selector

TAPE

selector

NORM:

TYPE

(normal)

tape

CrO,/METAL

(PB)

(playback):

When

playing

back

and

recording

with

TYPE

(CrO,)

tape,

when

playing

back

with

TYPE

(metal)

tape.

(14]

LINE

OUT

(PB

ONLY)

(playback

only)

jack

PHONES

(headphones)

jack

{13}

LINE

IN/MIC

(line

input/microphone)

jack

and

selector

REC

LEVEL

(recording

level)

control

(15]

PHONE

VOL

(headphones

volume)

control

TC-D3/WM-D3

SECTION

BLOCK

DIAGRAM

TC-D3/WM-D3

(2.25V)

$303

$302-1

$302-2

DOLBY

MIC

OFF

RVIOZ

{

(REC

LEVEL

ADJ)

MIC

AMP

DOLBYAMP

REC

AMP

Cote

dene

seen

J301

QI01

1€302(1/2)

2.95V

“)

pecsit

1€305(1/2)

9105

RV30I~I

ef)

0305

REC

LEVEL

REC

AMP

0304

R-CH

MUTING

eae

R-CH

0303

[=i0]

(2.98V)

0205

$305

PEAK

LED

ORIVE

rapes

LED

DRIVE

Lloz

Q316

1C306

ork

att

BATT

igo

0308

(¥)

VOLTAGE

SHIFT

0302

AMP

cio

LINE

AMP

vee

HRPSOI-|

“_.

UINE

OUT

REC/

HEAD

1¢30

1C304

(PB

ONLY)

LINE

AMP

R-CH

MUTING

Q104

361

RIPPLE

FILTER

nya

(3V)

OUT

PUT

(2.25)

LEVEL

ADJ)

302

R-CH

RV302-

cla7

clee

SWITCH

(12)

ane

103

ADPHONE

3303

()

AMP

PHONES

R-CH

(C303

R-CH

HEADPHONE

AMP

FWD

PAUSE

PROTECTOR

MUTING

penn

9303

9304

ania

B+

SWITCHING

OUT

PUT

B+

0319

Q305

(3V)

T301

BIAS

OSC

HE9O!

+—O

MUTING

FWD

SWITCH

|FWO/REW

SWITCH

B+

ERASE

HEAD.

0306

307

0317

93/8

PROTECTOR

Q3ll

9321

BIAS

OSC

REC/PB

MUTING

Q308

BIAS

TIMING

SWITCHING

314,323

PLAY

R~CH

(8.2V)

Q3l2

REC

BIAS

SWITCHING

ay)

CN30

LOC

IN 3V

DRY

BATTERY

MOTOR

DRIVE

Si7E

"AA"

R-CH

SAME

L-CH

(IEC

DESIGNATION

R6)

2PCS,

Q315

STOP

MUTING

$902

(FF/REW)

960

(3)

SERVO

AMP

(9)

IC601

FG901

(1)

(4)—65)

(TAPE

SPEED

ADJ)

TC-D3/WM-D3

SECTION

DISASSEMBLY

the

disassembly

procedure

order

given.

COMTREL

PANEL

REMOVAL

CASSETTE

PANEL

REMOVAL

special

head

screw

When

installing

control

panel,

careful

not

get

out

M1.4x

2.5

switch

position.

cassette

panel

special

head

screw

M1.4x25

special

head

screw

M1.4x4

OPEN

knob

Reinstallation

special

head

screw

M1.4x

2.5

special

head

screw

M1.4x

REC

BOARD

REMOVAL

MAIN

BOARD

REMOVAL

SIDE

PANEL

precision

screw

precision

screw

P1L4AX

3.5

PIL4AX

3.5

B1.7x

When

installing

side

panel,

careful

not

get

out

switch

position.

When

installing

main main

board

board,

careful

not

get

out

switch

position.

(2)

Open

the

cassette

panel.

side

panel

TC-D3/WM-D3

MECHANISM

DECK

REMOVAL

P1.4x

1.6

precision

screw

PIL4AX

precision

screw

P1.4x4

mechanism

deck

REC/PB

HEAD

(HRP901),

ERASE

HEAD

(HE901),

PINCH

ROLLER

REMOVAL

compression

spring

steel

ball

1.2mm

precision

screw

holder’

P2x

spring

compression

spring

precision

screw

‘3

P2x

3.5

Spring

;

steel

ball

1.2mm

“are

tly

pinch

roller

tension

spring

Spring

HRP9O1

erase

head

board

seam

(t=0.

7,2

son

‘

spring

erase

head

retainer

haad

Ghassis

lead

clamp

screw

P2x

P1.4x

1.6

HE901

—9—

TC-D3/WM-D3

SECTION

ADJUSTMENTS

3-1.

MECHANICAL

ADJUSTMENTS

AND

MEASUREMENT

PRECAUTION

Clean

the

following

parts

with

danatured-

alcohol-moistened

swab:

record/play

back head

pinch

roller

erase

head

rubber

belts

capstan

Demagnetize

the

record/playback

head

with

head

demagnetizer.

(Do

not

bring

the

head

de-

magnetizer

the

erase

head.)

not

use

magnetized

screwdriver

for

the

adjustments.

After

the

adjustments,

apply

suitable

locking

compound

the

parts

adjusted.

The

adjustments

should

performed

with

the

rated

power

supply

voltage

unless

otherwise

noted.

Perform

with

2.5

power

Torque

Measurement

Torque

Meter

Reading

Torque

Meter

—

g-cm

CO-102C

Forward

(0.30

—

0.63

oz-inch)

Fast

Forward

than

g-cm

and

Rewind

(More

than

0.89

oz-inch)

eOe0re

;

1—3g-cm

Each

Temson||

(O.014.

10.04

orinehye

Tape

Tension

Measuremerit

Meter

Reading

CQ-403A

100

—

150

(3,53

—

5.29

oz)

Pinch

Roller

Pressure

Measurement

Procedure:

—

playback

mode

Pull

the

spring

scale

the

direction

the

arrow.

Slowly

return

the

pinch

roller

and

read

the

spring

scale

just

when

the

pinch

roller

starts

rotate.

Specifications:

150

20g

Head

Height

Adjustment

Procedure:

Prepare

adjustment

cassette

shown

below.

Cut

out

hatched

tape

cassette

portions.

record

mode

and

viewing

from

the

front,

adjust

the

head

heights

eliminate

tape

curl

and

tape

twist

arrowed

portions.

erase

head

record/playback

head

3-578-138-0171

(t=0.1)

3-578-138-1171

(t=0.2)

Shim,

head

height

adjustment

necessary,

adjust

the

height

the

erase

head

turning

the

adjustment

screw.

adjustment

screw

Apply

locking

compound

adjustment

screw.

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.

@Set

the

TAPE

switches

according

the

tape

follows.

CS-121

NORMAL

@®

Switches

and

controls

should

set

follows

unless

otherwise

specified.

DOLBY

..........

Meare

Bite

OFF

Standard

Record:

Deliver

the

standard

input

signal

level

the

input

jack

and

set

the

REC

LEVEL

control

obtain

the

standard

output

signal

level.

—

Record

Mode

—

osc

aK)

10kQ

attenuater

o—-O

olt,000

——_

6002

315Hz

Standard

Input

Level

source

0.25,V

(—10dB)

0.775mV

(—60dB)

Standard

Output

Level

output

level

0.44V

(—SdB)

TC-D3/WM-D3

Playback

Head

Azimuth

Adjustment

Procedure:

Mode:

playback

test

tape

P-4-A100

(100kHz,

—10

dB)

LINE

OUT

Turn

the

adjustment

screw

for

the

maximum

output

levels.

these

levels

not

match,

turn

the

adjustment

screw

where

both

output

levels

match

together

within

0.5

dB.

R-CH

Screw

peak

position

Phase

Check

Mode:

playback

test

tape

P-4-A063

oscilloscope

(6.3

kHz,

—10

dB)

LINE

OUT

47kQ.

R-CH

Screen

pattern

DOOD

135°

=180°

eas

teeeepee

phase

45°

good

wrong

Adjustment

Location:

(9)

adjustment

screw

TC-D3/WM-D3

Tape

Speed

Adjustment

Setting:

VOLUME

knob:

center

click

Procedure:

Mode:

playback

speed

checker

digital

frequency

test

tape

counter

WS-48B

(3kHz,

OdB)

LINE

OUT

Specifications:

Speed

checker

Digital

frequency

counter

+2%

2,940

—

3,060

Adjustment

Location:

——

Playback

Level

Adjustment

Setting:

TAPE

select

switch

NORM

DOLBY

switch

OFF

Procedure:

Mode:

playback

test

tape

P-4-L.300

(315Hz,

OdB)

LINE

OUT

Adjust

RV101

(L-CH)

and

RV201

(R-CH)

for

245

—

256

(—10

—9.6

dB)

reading

VM.

Adjustment

Location:

main

board

RV201

(R-CH)

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