Sony Ta-f45 User manual

US

Model

Canadian

Model

AEP

Model

UK

Model

INTEGRATED

STEREO

AMPLIFIER

Ju

SPECIFICATIONS

GENERAL

Power

Requirements:

120

V

ac,

60

Hz

(US,

Canadian

model)

AC

Outlets:

1

switched,

100

W

(at

max.)

220

V

ac,

50/60

Hz

(AEP

model)

(US,

Canadian

model)

2

unswitched,

total

100

W

(at

max.)

240

V

ac,

50/60

Hz

(UK

model)

Dimensions:

Aoprox.

430

(w)

x

80

(h)

x

335

(d)

mm

Power

Consumption:

90

W

(US

model)

17

(Ww)

x

3%

(h)

x

13

%

(d)

inches

140

W

(Canadian

mode!)

ncluding

projecting

parts

and

controls

220

W

(AEP

model)

Weight:

Acorox.

4.4

kg,

9

Ib

12

0z

(net)

260

W

(UK

model)

Acorox.

5.5

kg,

12

Ib

3

oz

(in

shipping

carton)

—

Continued

on

page

2

—

SAFETY-RELATED

COMPONENT

ViARNING!!

COMPONENTS

IDENTIFIED

BY

SHADING

AND

MARK

N

ON

THE

SCHEMATIC

DIAGRAMS,

EXPLODED

VIEWS

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

TO

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL

OR

!N

SUPPLEMENTS

PUBLISHED

BY

SONY.

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

TRAME

ET

UNE

MARQUE

,1\

SUR

LES

DIAGRAMMES

SCHE-

MATIQUES,

LES

VUES

EXPLOSEES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REMPLACER

CES

COMPOSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

AARNING!!

THIS

SET

USES

THE

SWITCHING-TYPE

POWER-SUPPLY

CIRCUIT,

WHICH

'S

DIRECTLY

CONNECTED

TO

THE

AC

POWER

LINE.

AN

ISOLATION

TRANSFORMER

SHOULD

BE

USED

BETWEEN

THE

AC

OUTLET

AND

THE

AC

PLUG

OF

THE

SET

DURING

ANY

SERVICE

TO

AVOID

POSSIBLE

SHOCK

HAZARD

WHEN

REPAIR-

ING

THE

POWER

SUPPLY

CIRCUIT.

SONY

SERVICE

MANUAL

TA-F45

AMPLIFIER

SECTION

Power

Output

and

Total

Harmonic

Distortion:

(US,

Canadian

model)

Continuous

RMS

Power

Output:

(Less

than

0.008%

THD,

both

channels

driven

simultaneously)

{AEP,

UK

mode!)

Power

Bandwidth:

(IHF)

Harmonic

Distortion:

Intermodulation

(IM)

Distortion:

(60Hz

:

7kHz

=

4:

1)

Frequency

Response:

Residual

Noise:

Dampting

Factor:

Inputs:

With

8

Q

loads,

both

channels

driven,

from

20

—

20,000

Hz;

rated

SOW

per

channel

minimum

RMS

power,

with

no

more

than

0.008

%

total

harmonic

distortion

from

250

mW

to

rated

output.

|

Maximum

S/N

_

|

input

Sensitivity:

Impedance

|

capability

|

(TkHz)

Setting

of

the

CARTRIDGE

LOAD

selector

(weighting

network,

-

input

Jevel)

|

90

dB

:

78dB*

(A,

2.5

mV)

At

20

—

20,000

Hz

50W

+

50W

(8

2)

According

to

DIN

45500

50

W

+

50

W

(8

2)

5

—

30,000

Hz

(AEP,

UK

model)

(A,

0.25

mV)

104

dB

78

dB*

(A,

150

mV)

Less

than

0.008

%

at

rated

output

150

mV

50

kN

Less

than

0.006

%

at

25

WY

output

Less

than

0.008

%

at

rated

output

*

"78

IHF

Less

than

0.006

%

at

25

WV

output

Measured

with

rated

output

cower

into

8-ohm

loads

(both

channels

driven

PHONO

RIAA

equalization

curve

+0.2d8

simultaneously)

at

1

kHz

TUNER

AUX

5

—

70,000

Hz

Ae

dB

Outputs:

TAPE

1,2

Less

than

130

uV

(8

2,

Network

A)

Impedance

50

(8

2,

1

kHz)

(—14.5

aB)

SPEAKER

A,B

HEAD-

PHONES

Accepts

speakers

cf

2-162

Accepts

low

ard

hich

impedance

headphones.

BASS

=

10

4B

at

100

Hz

(turnover

frequency:

500

Hz)

TREBLE

=10dB

at

25

kHz

(turnover

frequency:

5

kHz)

Tone

Controls:

Loudness:

+1008

at

100

Hz,

+3

dB

at

10

kHz

(att.

30dB)

Low

Filter:

6

dB/octave

attenuation

below

15

Hz

0dB=0.775

V

MODEL

IDENTIFICATION

Specification

Label

INTEGRATED

STEREO

AMPLIFIER

|

MODEL

NO.

TA—F45

ae

MADE

IN

JAPAN

{

aes

SERIAL

NO.

US

modei

AC

120V

60Hz

SOW

Canadian

mocel

:

AC

120V

60Hz

140W

AEP

modet

AC

220V

~50/60Hz

220W

UK

model

AC

240V

~650/60Hz

260W

1.

REPLACEMENT

OF

THE

TRANSFORMERS

IN

THE

INVERTER

CIRCUIT

The

lead

wire

arrangement

for

each

of

T901

and

T902

in

the

inverter

circuit

are

shown

in

Fig.

1.

As

the

repair

parts,

T901

and

T902

are

formed

by

only

iron

core.

Thus,

if

the

coils

are

defective,

arrange

TA-F45

2.

INVERTER

CIRCUIT

TRANSISTOR

REPLACE-

MENT

When

any

of

the

inverter

transistors

‘Qv03.

Q904)

is

broken,

replace

their

transistors

together.

A

pair

of

transistors

with

the

same

r2nk

is

provided

for

service

field.

a

new

transformers

as

shown

below.

Note

that

the

lead

lengths

must

be

exact.

Also

wind

the

coil

carefully.

_

PartNo.

|

i

X-4863-506-1

Transiszez

Ass’y,

service

Description

Q903,

904

T902

core

{1-543-100-00)

one

turn

Q

|

wire

length:

40mm

(1%

inches)

|

diameter:

0.45mm

T901

core

Erne

.

1-543-100-00.

white

i

two

turns

U

__—_

9

|

wire

length:

55mm

(2%

inches)

|

diameter:

0.45mm

(one

turn

@

|

wire

ength:

50mm

(2

inches)

\diamezer:

0.26mm

two

turns

wire

length:

70mm

(2%

inches)

siameter:

0.26mm

four

turns

,

wire

lengen:

120mm

(4%

inches)

|

diameter:

0.45mm

|

two

turns

|

wire

length:

70mm

(2%

inches)

!

diameter:

0.2mm

pulse

power

supply

board

Fig.

7

TA-F45

s

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"6

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SECTION

2

DISASSEMBLY

Note:

Follow

the

disassembly

procedure

in

the

numericai

order

given.

TOP

COVER

AND

BOTTOM

PLATE

REMOVAL

top

cover

screw

_.

top

cover

_

wy

|

ee

_

top

os

j

i

\

i

cover

screw

S

SS

i

8

;

2

y

bottom

plate

-

Sa

;

——~

PTPWH3

x

6

——-

FRONT

PANEL

REMOVAL

OBVTT3x6

A

Gi

AS

@O

knob

(VOLUME)

a

&0

BVTT3

x

6

5

TA-F45

Under

the

condition

shown

below,

the

circuit

boards

can

be

checked

except

for the

pulse

power

supply

board.

i

d

BVTT3x

10

audio

boar

:

y

ae

input

board

=

eres

ae

ee

omy

Ji

OVLUIL

Hari

(Uitatakakithakax

4

pulse

power

supply

case

oN

|

1)

NUINUAT

pulse

power

supply

board

|

>

_

ope

aes

speaker

output

board

(A)

LED

meter

board

we

“.

BYTT3x8

speaker

output

board

(B)

Photo

:

US,

Canadian

model

PULSE

POWER

SUPPLY

BOARD

REPAIRING

—

With

pulse

power

supply

board

grounded

—

When

checking

the

pulse

power

supply

board

out

to

connect

the

ground

pattern

of

circuit

board

with

i

of

the

pulse

power

supply

case,

use

the

two

lead

wires

pet

eed

2

roa

a

the

chassis

as

shown

below.

BVTT3

x

10

lead

wires

from

e

audio

board

g

1

of

pulse

power

supply

board

supoly

board

TA-F45

SECTION

3

ADJUSTMENTS

Note:

1.

DC

bias

and

DC

balance

adjustments

should

be

made

serveral

minutes

later

after

the

POWER

switch

is

turned

on

(POWER

ON.).

2.

Make

DC

bias

adjustment

first.

3.

Repeat

DC

bias

and

DC

balance

adjustments

two

or

three

times.

4.

After

replacing

the

power

vransistors,

DC

bias

and

DC

balance

adjustments

should

be

made.

DC

Bias

Adjustment

(With

no

signal

input)

DC

Balance

Adjustment

Procedure:

Adjust

RT301

(L-CH)

and

RTS!

(R-CH)

for

OV

readings

with

no

signal

input.

-L-CH-—

—R-CH—

Adjust

RT302

for

16mV

Adjust

RT352

for

16mV

dc

reading

on

VOM.

dc

reading

on

VOM.

Adjustment

Location:

VOM

(de

range)

{de

range)

—

R-CH

—

~—LCH—

VOM

(dc

range)

(de

range)

SPEAKER

terminals

:

‘A

Re

"ee

\

;

NU

Satccttl

MAMMA

SA

was

sin

ceatcaee)

aot

reteteanaie

ami

ae

wrvbiinitits

wee

ee

er

tended

ttt

eat

ON

-RT302

ahs

(L-CH)

dye

WS

DC

bias

;

ae

adjustments

|

:

RT352

RT301.

(R-CH)

(L-CH)

|

BC

dalance

|

acjustments

RT3§1

|

(R-CH)!

audio

board

Photo

:

US,

Canadian

model

TA-F45

SECTION

4

|

TA-F45

T

4-1.

DIAGRAMS

A

B

Cc

D

E

F

G

H

sea

tk

eT

BR

eo

cor

ge

|

a

ee

om

;

409

405

401

351

502

503

30!

151

iol

at

~~

=

a

A

8

406

8.70

408

eae

3h

303508

=

1

{INPUT

BOARD]

©

cuassis

EARTH

ROR

:

=

78

4

ey

4

Meh

0310

[AUDIO

BOARD)

ae

TOAD

(a.

"ay

€18°)

ANOS

S-98N-dl

TN-I

SPEAKER

A

?

CHASSIS

EARTH

ir

410)

[

out

Pur

|

PUT

K

[Lowreut]

oi

'

[SRAKee

BOARD

A

PHONO

0!

TUNER

O1

AUX

OR

PHONO

ON

QUI

VW

PHONO

ON

O.7V

€

>

Q

ee

—

:

(TUNER

ON

6.6

VY

(TUNER

ON-13v)

29

Jeli

tani

hic

i

AUX

ON

66V/

‘AUX

—

ON-I3V

J

heb)

Es

We

:

I

eo

Gam

1D

CHD

15.6

x

SPEAKER

B

[SOURCE]

a

5

=

Sm

s.

)

o

.

we

«

Seti

co

Ve

ete

I

as

.

. .

.

i

%

-

SON

Y

_

IP-NB8-S

|

60)

44

(1592614

3)

{SWITCH

BOARD]

1C501

‘$4

ON

$5

ON

sé

ON

S7

ON

SB ON so

ON

S10

ON

sil

ON

source]

|

i

t

OFF

|

(2=1]

+

i~2]

}

(Low

Fitter]

|

[Loupness]

OFF

Ic

401

TAPE

COPY

1

OFF

—=ON

2

OFF

—=

ON

3

OFF

—-

ON

[1

Note:

©

oem

>a

:

Signal

path

@

oO—

:

parts

extracted

from

the

component

side.

©

meee

©

L-CH

signal

path

e

:

B

+

pattern

©

mem

semeep

©

R-CH

signal

path

—8-—

°

PEON.

8

-

pattern

©

-

:

Connect

VOM

as

illustrated

in

Fig.

1.

—9—

TA-F45

E

F

G

H

fete

409

405

401

35!

502

503

391

902303

1c251

«1201

ial

LY

BOARD]

©

cuassis

EARTH

[PULSE

POWER

SUPP

42V

Sis

CARTRIDGE

LOAD

DB

ra02

1.3K

(1/2w)

ah

7

(c402

0.47

0.047

h

ee

»

Ra

G54

0

P|

mma

fe

(=)

r=

a

a7Op

cs

[souce|

(TAPE

a

pelle

gs

“cli

tgs)

Ye

P-tite

z

«

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:

is

pd

ot

Babin

Ab

C

0

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3

.

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was.

mara,

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.

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x

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cet

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2

5k

fh,

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9°98

at

SONY

IP

NBE-S

~~

*

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er

1

bua

Wad

:

eee

a

soo

CCS

he

cial

Rudi

:

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592614

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ON

$5

ON

sé

__ON

S7_

ON

$8

ON

$9

ON

slo

on

_

SII

ON

[VOLUME

BOARD]

IRCE]

|

TAPE-2]

{

Tape-1]

ft

(OFF

]

4

(2=1]

t

[i=2]

}

{Low

Fitter]

+

[LovoNESsS|

fe

fF

OFF

oF

OFF

te)

|__

rave

cory}

mass

(1

I

SI4

Dore

|

AC

DETECTION

]

A)

|

peace

CNP

I

DEL

5

AC

IN

120V.

6OHz

©

mm

>

men:

Signal

path

——

©

mes

meme

©

L-CH

signal

path

©

memo

©

R-CH

signal

path

®

+

:

Connect

VOM

as

illustrated

in

Fig.

1.

—9-

|

!

|

2

m

i]

/

ne

faa

so]

S|

;

AER

UK

(220~50/60He}

iM

ODEL

UK

MODEL

-

TA-F45

|

A

B

C

D

E

F

G

H

4-2.

SCHEMATIC

DIAGRAM

|

”

7

Q101,10?

28c2545

zi

DIO!

151

1S1555

‘

1c20)

M52

141.

D30I

HZ6c2L

Q301

258646

Q302

2SA796

[INPUT

BOARD]

[tavo10

BOARD}

sina

ihisawt

alos

2SK30A

p10

~——EQAOI=138

te

0302

SV

04

Q303

25C2291

0304

P5H64B

'

ROO?

tt

Wy

IClOl

CX550

0307

1S1555

Q305

2S0668

yay

A

:

330

CLASS

A

AMP»

—————-

1

ft

|

aie

|

RIO3,

3311/2)

SI5-I-2

—

£0

AMP

—

ee:

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Sony TA-F45 User manual

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