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TX-SV545

Ref.

No.3582

ONKYO.

SERVICE

MANUAL

AUDIO

VIDEO

CONTROL

RECEIVER

MODEL

TX-SV545

Black

and

Silver

models

BMD

BMP,BMPT,BMPA,SMP

BMWT

120V

AC,60Hz

220-230V/120V

AC,50/60Hz

220V

AC,50Hz

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

A\

ON

THE

SCHEMATIC

DIAGRAM

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

FOR

RISK

OF

FIRE

AND

ELECTRIC

SHOCK.

REPLACE

THESE

COMPONENTS

WITH

ONKYO

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL.

MAKE

LEAKAGE-CURRENT

OR

RESISTANCE

MEASUREMENTS

TO

DETERMINE

THAT

EXPOSED

PARTS

ARE

ACCEPTABLY

INSULATED

FROM

THE

SUPPLY

CIRCUIT

BEFORE

RETURNING

THE

APPLIANCE

TO

THE

CUSTOMER.

ONKYO.

AUDIO

COMPONENTS

TABLE

OF

CONTENTS

Specifications.

Service

procedures..

Adjustment

procedures...

Tuner

sectlon.........06

Amplifier

section.........0+0+

Microprocessor

connection

diag:

Microprocessor

terminal

description:

IC

block

diagrams

and

descriptions,

Printed

circuit

board

parts

list....

Volume

section..........

Tuner

section......

Video

section......

50

Block

diagrams.

Amp.

section.

Tuner

section......

Printed

circuit

board

vie

Main

circuit

section...

Volume

sectton.........

Display

and

switch

secttons..

Power

supply

and

amp.

sectlons.

Power

amplifier

section........

we

37

Tuner

sectlon.......

Video

section.......

wwe

49

Schematic

diagrams.

Main

circult

section...

Volume

section...........2+

ives

Display

and

switch

sections.

Power

supply

and

amp.

secti

Power

amplifier

section:

Tuner

section......

Video

section

Exploded

view..

Parts

list.......

Packing

view

TX-SV545

SPECIFICATIONS

AMPLIFIER

SECTION

Power

Output

U.S.

&

Canadian

models:

Front

L/R

channels:

Front

LAR

and

Center

channels:

Surround

L/R

channels:

(Rear

only

driven)

Other

area

models:

Front

L/R

channels:

Front

L/R

and

Center

channels:

Surround

L/R

channels:

(Rear

only

driven)

IM

Distortion:

Damping

Factor:

Input

Sensitivity/Impedance

PHONO:

CD/TAPE

1,

2/VIDEO-1,

2,

3:

MULTICHANNEL

INPUT

(FRONT

L/R,

SUR-

ROUND

L/R,

CENTER):

MULTICHANNEL

INPUT

(SUBWOOFER):

Output

Level/Impedance

REC

OUT:

PRE

OUT:

Phono

Overload:

Frequency

Response:

RIAA

Deviation:

Tone

Control

Bass:

Treble:

Signal-to-Noise

Ratio

(Surround

OFF)

Phono:

CD/Tape:

Muting:

VIDEO

SECTION

Input

Sensitivity

and

Impedance

Video

(Composite):

Output

Level

and

Impedance

Video

(Composite):

75

watts

per

channel,

min.

RMS

at

8

ohms,

both

channels

driven

from

20

Hz

to

20

kHz

with

no

more

than

0.08%

total

harmonic

distortion.

65

watts

per

channel,

min.

RMS

at

8

ohms,

three

channels

driven

from

20

Hz

to

20kHz

with

no

more

than

0.08%

total

harmonic

distortion.

25

watts

per

channel,

min.

RMS

at

8ohms,

both

channels

driven

from

20

Hz

to

20

kHz

with

no

more

than

0.3%

tetal

harmonic

distortion.

25

watts

per

channel,

min.

RMS

at

8

ohms,

both

channels

driven

from

20

Hz

to

20

kHz

with

no

more

than

0.08%

total

harmonic

distortion.

2X

100

watts

at

6

ohms,

1

kHz

(DIN)

3

X95

watts

at

6

ohms,

|

kHz

(DIN)

2

x

35

watts

at

6

ohms,

|

kHz

(DIN)

2

X

30

watts

at

6

ohms,

|

kHz

(DIN)

0.08%

at

rated

power

(Front)

60

at

8

ohms

(Front)

2.5

mV/S0

kohms

200

mV/S0

kohms

200

mV/50

kohms

36

mV/50

kohms

200

mV/2.2

kohms

1

V/

470

ohms

120

mV

RMS

at

|

kHz,

0.5%

T.H.D.

20

Hz

to

30

kHz,

+1

dB

(Surround

OFF)

20

Hz

to

20

kHz,

+0.8

dB

+10

dB

at

50

Hz

+10

dB

at

10

kHz

80

dB

(IHF

A,

5

mV

input)

100

dB

(THF

A)

-co

dB

1

Vp-p/75

ohms

1

Vp-p/75

ohms

TUNER

SECTION

FM

Tuning

Range:

Usable

Sensitivity

Mono:

Stereo:

50

dB

Quieting

Sensitivity

Mono:

Stereo:

Capture

Ratio:

Image

Rejection

Ratio

U.S.

&

Canadian

models:

Other

area

models:

IF

Rejection

Ratio:

Signal-to-Noise

Ratio

Mono:

Stereo:

Alternate

Channel

Attenuation:

Selectivity:

AM

Suppression

Ratio:

Total

Harmonic

Distortion

Mono:

Stereo:

Frequency

Response:

Stereo

Separation:

Muting

level:

AM

Tuning

Range

U.S.

&

Canadian

models:

European

&

Australian

models:

Worldwide

models:

Usable

Sensitivity:

Image

Rejection

Ratio:

IF

Rejection

Ratio:

Signal-to-Noise

Ratio:

Total

Harmonic

Distortion:

GENERAL

Power

Supply

Power

Consumption

U.S.

&

Canadian

models:

Other

area

models:

Dimensions

(W

X

H

X

D):

Weight:

U.S.

&

Canadian

models:

Other

area

models:

REMOTE

CONTROL

U.S

&

Canadian

models:

Other

area

models:

Transmitter:

Signal

range:

Power

supply:

87.5

—

108.0

MHz

(50

kHz

steps)

11.2

dBf,

1.0

pV

(75

ohms)

17.2

dBf,

2.0

pV

(75

ohms)

17.2

dBf,

2.0

nV

(75

ohms)

37.2

dBf,

20

uV

(75

ohms)

1.5

dB

40

dB

85

dB

90

dB

76

dB

70

dB

55

dB

50

dB

(DIN)

50

dB

0.1%

0.2%

30

Hz

—

15

kHz,

+1.0

dB

45

dB

at

1

kHz

30

dB

at

70

Hz

—

10

kHz

17.2

dBf

530—1,710

kHz

(10

kHz

steps)

$22—1,611

kHz

(9

kHz

steps)

531—1,602

kHz

(9

kHz

steps),

530—1,710

kHz

(10

kHz

steps)

30

pV

40

dB

40

dB

40

dB

0.7%

AC

120

V,

60

Hz

AC

220

V,

60

Hz

AC

230

V,

50

Hz

AC

220-230

V

and

120

V

switchable,

50/60

Hz

3.5A

310

W

435

x

175

X

390

mm

17-1/8"

X

6-7/8"

X

15-3/8"

11.7

kg,

25.8

Ibs.

12.5

kg,

27.6

lbs.

RC-343M

RC-344S

Infrared

Approx.

5

meters,

16

ft.

Two

“AA”

batteries

(1.5

V

x

2)

Specifications

and

features

are

subject

to

change

without

notice.

SERVICE

PROCEDURES

1.

N

w

S

Replacing

the

fuses

TT

This

symbol

located

near

the

fuse

indicates

that

the

fuse

used

is

fast

operating

type.

For

continued

protection

against

fire

hazard,

replace

with

same

type

fuse.

For

fuse

rating

refer

to

the

marking

adjacent

to

the

symbol.

=

Es

Ce

symbole

indique

que

le

fusible

utlise

est

a

rapide.

Pour

une

protection

permanente,

n'utiliser

que

des

fusibles

de

meme

type.

Ce

darnier

est

indique

la

qu

le

present

symbol

est

appose.

CIRCUIT

NO.

PARTNO.

DESCRIPTION

F901

252198

8A-UL.,

Primary

fuse

<D/W>

F902

252077

4A-SE-EAK.

Primary

fuse

<P/T/W/A/K>

F903

252075

2.5A-SE-EAK,

Fuse

<P>

252074

2A-SE-EAK,

Fuse

<T/A>

F915.F916

252166

6.3A-UL/T-237,Secondary

fuse

<D>

252079

6.3A-SE-EAK,

Secondary

fuse

<P/T/W/A/K>

NOTE:

<D>: 120V

model

only

<P>:

European

model

only

<T>:

Asian

mode!

only

<W>:

Wolrdwide

model

only

<A>:

Australian

model

only

<K>:

Korean

model

only

To

Initialize

the

unit

This

device

employs

a

microprocessor

to

perform

various

functions

and

operations.

If

interference

generated

by

an

external

power

supply,

radio

wave,

or

other

electrical

source

results

in

accident

which

causes

the

specified

operations

and

functions

to

operate

abnormally.

To

perform

a

result,

please

follow

the

procedure

below.

1.

Press

and

hold

down

the

CD

button,

then

press

the

POWER

button.

2.

After

"clear"

is

displayed,

the

prest

memory

and

each

mode

stored

in

the

memory,

such

as

surround,

are

initialized

and

will

return

to

the

factory

settings.

Safety-check

out

(Only

U.S.A.

model)

After

correcting

the

original

service

problem,

perform

the

following

safety

check

before

releasing

the

set

to

the

customer.

Connect

the

insulating-resistance

tester

between

the

plug

of

power

supply

cord

and

the

screw

on

the

back

panel.

Specifications:

3.3

Mohm+10%

at

500V.

Change

of

voltage

Worldwide

models

are

equipment

with

a

voltage

selector

to

conform

with

local

power

supplies.

This

switch

is

located

on

the

back

panel.

Be

sure

to

set

this

switch

to

match

the

voltage

of

the

power

supply

in

your

area

before

turning

the

power

switch

on.

This

switch

is

set

to

220V

at

the

factory.

Voltage

is

changed

by

sliding

the

groove

in

the

switch

with

the

screwdriver

to

the

right

cm

TX-SV545

or

left.

Confirm

that

the

switch

has

been

moved

all

the

way

to

the

right

or

left

before

turning

the

power

switch

on.

VOLTAGE

SELECTOR

220V~

120V~

Memory

preservation

This

unit

does

not

require

memory

preservation

batteries.

A

built-in

memory

power

back-up

system

preserves

contents

of

the

memory

during

power

failures

and

even

when

the

unit

is

unplugged.

The

unit

must

be

plugged

in

and

the

power

switch

turned

on

and

off

once

in

order

to

charge

the

back-up

system.

Note

that

since

this

is

not

a

permanent

memory,

the

power

switch

must

be

turned

on

and

off

a

few

times

each

month

the

keep

the

back-up

system

operative.

The

period

of

the

time

during

which

memory

contents

are

preserved

after

power

has

last

been

turned

off

varies

depending

on

climate

and

placement

of

the

unit.

On

the

average,

memory

contents

are

protected

over

a

period

of

3

to

4

weeks

(a

minimum

of

2

weeks)

after

the

last

time

power

has

been

turned

off.

This

period

is

shorted

when

the

unit

is

exposed

to

very

high

humidity

or

used

in

an

area

with

an

extremely

humid

climate.

Setting

the

tuning

step

frequency

Worldwide

models

are

equipped

with

a

step

band

selector

switch.

This

switch

is

located

on

the

back

panel.

This

switch

is

set

to

9

kHz

at

the

factory,

but

may

have

to

be

reset

to

10

kHz

depending

on

the

area

where

the

unit

is

used.

AM

band

step

Europe:

9

kHz

U.S.A.:

10kHz

AM

FREQ.

STEP

9kHz

10kHz

.

Changing

the

band

step

With

the

exception

of

the

worldwide

models,

a

tuning

step

selector

switch

is

not

provided.

When

you

change

the

band

step,

change

the

parts

as

shown

below.

To

10

kHz

To

9

kHz

R745

No

connection

2.7

kohm

R746

10

kohm

1.5

kohm

ADJUSTMENT

PROCEDURES

FM

Item

Step

Connection

FM

SG

Stereo

modu-|

Tuning

Output

—"

instrument

output

lator

output

|frequency}

indicator

FM

IF/RF

:

Fig:

Stereo

=

Stereo

Par

99.0MHz

Ext.

mod.65dBf(60dB)

Channel

L

Distortion

orR

kHz

|

99-OMHz)

analyzer

|

L

Channel

R

AC

voltmeter

ome

OMHz

Channel

R

Channel

L

1kHz

AC

voltmeter

120V

model

indicator

AM

SG

Tuning

Output

Adjustment

530kHz

Bc

1.4+0.2V

voltmeter

600kHz

AC

i

400Hz

30%

mod.

|

600kHz

itm

Maximum

60dB/m

eae

block

L105

99.0MHz

Ext.

mod.

65dBf(60dB)

99.0MHz

19.2dBf(14dB)

400Hz

30%

mod.

60dB/m

Reference

Specification

FM

tuned

voltage:87.50MHz~

108.00MHz

More

than

1.3V~Less

than

9V

AM

tuned

voltage:530kHz~

1710kHz

1.4+0.4~Less

than

9.0V

Adjustment

Adjust

Rewarks

point

for

99.0MHz

IDC

voltmeter

|

voltmeter

[DC

voltmeter|

L101

_|

L

O+20mV_

|

+20mV

EM

MUTE/MODE

kHz

75kHz

devi.

99.0MHz

AC

vometr

voltmeter

acvimen|

ea

|

65dBf(60dB)

Distortion

;

L102

is

necessary.

990kHz

AC

999kHz

400Hz

30%

mod.

|

990kHz

voltmeter

L106

Maximum

400Hz

30%

mod.

60dB/m

60dB/m

Reference

Specification

FM

tuned

voltage:87.50MHz~

108.00MHz

More

than

1.3V~Less

than

9V

AM

tuned

voltage:522kHz~

161

1kHz

odin

switch:ON/STEREO

Repeat

the

steps

1

and

3

until

no

further

adjustment

Don't

turn

more

Minimum

|

than

+

180°

Minimum

Minimum

Maximum

and

same

separation

Digital

OSC

coil

DC

on

RF

1.4+0.2V

voltmeter

block

L105

AC

RF

coil

oltmet

on

RF

Maximum

vernnerer

block

L105

AC

;

AM

tuned

voltage:531kHz~

1602kHz

1.4+0.4~Less

than

9.0V

(Worldwide

model)

1.4+0.4~Less

than

9.0V

(230V

model)

SvSAS-XL

ANTENNA

TERMINAL

OUTPUT

TERMINAL

DISTORTION

SIGNAL

GENERATOR

ANALYZER

MILLIVOLT

<Fig.I>

METER

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OUTPUT

TERMINAL

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DISTORTION

FM

STEREO

MODULATOR

FM

SIGNAL

GENERATOR

ANALYZER

AC

See

VOLTMETER

ANTENNA

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iy

OUTPUT

OSCILLO-

SIGNAL

OO

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GENERATOR

RM

SCOPE

<Fig.3>

OUTPUT

TERMINAL

60cm

AC

st

re

VOLTMETER

or

GENERATOR

-

OSCILLOSCOPE

AM

LOOP

op

ANTENNA

:

ANTENNA

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+

of

C132

{Accessary)

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DRIVER

VOLUP

30

STBY/RCV

ov

29

B

pat

208.

fs

Q403

|

ae

C9213P

6

CWMUT

|__|

Q446.0447

,

H

FMUT

SWITCH

23

DSPRST

7”

22_SS2

|

HREO

19

DARST

|

g

SMMUT

=H

7_FUNC

404

ee

3

A

<<]

ol

w/o

QC

aw

J

a

8)

3 os

&

Si2

is)

|

FL

TUBE

DRIVER

)

M66004FP

\

Q181

BUI922

=

CIRCUIT

+B

oO.

AC

SFEKAER

RELAY

SWITCH

FLUORESCENT

TUBE

|2-0}—

oo.

405

ar

13P

CWSTB

SpSAS-X1L

MICROPROCESSOR

TERMINAL

DESCRIPTIONS

Pin

No.

Description

1

Connect

to

the

terminal

CS

of

FL

tube

driver.

2

Input

pin

of

Jog

A

3

OGB

Input

pin

of

Jog

B

MROFF

Multi-Room

control

output

pin

‘ower

source

contro}

output

pin

ystem

code

output

pin

ideo

output

control

pin

ideo

output

control

pin

Sa)

Oy}

i

5

No

s/o

o/s

G|a

[oe) mae)

7

ro)

Q}]<|<|<

=|]

Y1O/9

AY)

ala

+4

rc

wo

|

>

|

onnect

to

the

terminal

STAB

of

electro

volume

IC

ront

speaker

relay

control

output

pin

ulti

speaker

relay

control

output

pin

enter

and

surround

speaker

relay

control

output

pin

ata

output

pin

to

Function

switch,

PLL

and

electro

volume

Ics.

lock

output

pin

to

Function

switch,

PLL

and

electro

volume

Ics.

hip

enable

output

pin

to

PLL

IC.

trobe

output

pin

to

Function

switch

Ics

uting

output

pin

for

surround

multi

amplifier.

Reset

output

pin

for

D/A

converter

20

Muting

output

pin

for

tuner

circuit

21

Request

input

pin

from

terminal

HREQ

of

DSP

IC.

utput

pin

to

connect

the

terminal

SS

of

DSP

IC.

utput

pin

to

connect

the

terminal

RESET

of

DSP

IC.

= =

C,

Tl

lies)

a

=

tC

O):

is]

c

felfeliv)

“ry

se

z2\|zZ

ajo

to]

Zin

O1O

z2

23

DSPRST

24

25.

|FMUT

W ”

uting

output

pin

for

amplifier

of

front

channels

26

uting

output

pin

for

amplifier

of

center

and

sub

woofer

channels

27

trobe

output

pin

to

Electro

volume

28

3-D

BASS

control

output

pin

29

|

FSTB

Strobe

output

pin

to

Electro

volume

30.

|STBY/RECV

—

|STAND-BY

and

RECEIVED

indicator

output

pin

31

VOLDOWN

Volume

control

output

pin

32

|VOLUP

EES

wn

33

STEREO

Stereo

broadcast

detection

input

pin

Description

Broadcast

detection

input

pin

System

reset

input

pin

Input

pin

from

remote

control

System

code

input

pin

Power

failure

detection

input

pin

Clock

input

pin

from

RDS

decoder

Power

supply

pin

(+5V)

Ceramic

oscillator

connection

pins

of

main

system

clock

Connect

the

1OMHz

ceramic

oscillator.

I

nternal

connection

pin

Operation

key

connection

pins

50

BAND

Initializing

input

pin

for

band

and

RDS

function

32

MODE—lnivalizing

npurpin

for

operationmode

[783

[IPM____]Detection

input

pin

of

Intelligent

Power

Management

operation

__

SE

[VOLP__

Position

detection

input

pin

of

master

volume

-35JAVDD

[Analog

power

supply

pin

of

A/D

convener

$7

58

59

Video

output

contro!

pin

VCTLD

Video

output

control

pin

Muting

output

pin

of

video

RDSSIG

RDS

broadcast

detection

input

pin

Input

pin

from

terminal

MOSI

of

DSP

IC

Data

output

pin

from

terminal

SDATA

of

FL

tube

Clock

input

pin

from

terminal

SCLK

of

DSP

IC

Clock

output

pin

to

connect

to

terminal

SCK

of

FL

tube

driver

62

63

64

+

fh

n”

<i

a1

>

ol

TX-SV545

IC

BLOCK

DIAGRAMS

AND

DESCRIPTIONS

TC9162AN

(Analog

Switch)

xX

7,

“

VV

Bi

V

{\

©

VV

Gia

bs

LEVEL

SHIFTER

LATCH

CIRCUIT

Oe

R

LATCH

CIRCUIT

Se

ee

Se

ee

©)

¢

FE

v

AN

j

’

@)

O-Ba

@

re

Tog

sv

sd

Powersupply

pin(+)

2,3,5,6,8,9,11

Switch

input/output

pins

5

”

witch

input/output

pins

1

1

COM1~COM4_

[Common

pins

Tis

(cK

_|Clockinputfordatatransfer_

|

[6

[DATA

_|

Serial

data

input

pin for

switch

setting

_

Q

TC9274N-008

(Analog

Switch)

a

wn

v

E) a]

>

©O-©O-O-)-O-O-O-O-O-O--O-O-O--)--©

E.

i

(i

x

mL

eae

ees

1S

uw

a

i]

-_

vis

tis

2

7

3

s

YALSIOIY

LUIS

NY

LSIHS

THA37

ais

Vivgd

w>

GND

E:

4

X

x

Ky

z

E

&

x

Pe

we

ag

we

x

HE

x

;

E

|

$

&

@—-®-—-©-®-@-©-©-®-@—-@--@

2

4

a a

us

@

gis

TC9163AN

(Analog

Switch)

LEVEL

SHIFTER

LATCH

CIRCUIT

LEVEL

SHIFTER

Funetion

Pt

iss

Powersupply

pint)

Pa

fcnp

Groundpin

Ps

tvpp

Powersupply

pints)

126,25,

1~S8

ST

CK

14

28

Pa

[st

|

Strobe

input

pin

for

data

interruption

_|

Pts

ck

clock

input

for

data

transfer

TA7291

(Volume

Motor

Driver)

Vcc

-*

Vref

CCW:Counter-clockwise

direction

CW:Clockwise

direction

INI

IN2

GND

TX-SV545

TX-SV545

TC9213P

(Electro

Volume)

YVss

DECODER

LEVEL

SHIFT

STORE

CIRCUIT

cinculT

K

|

GENERATION

re

CIRCUIT

ft

14bits

SHIFT

REGISTER

CIRCUIT

TC9164AN

(Analog

Switch)

CODE

DETECTOR

circuit

;

fi

L-S1

Bt

R-S1

~

O-d]

E]

-

L-83

p+

|

|

R-S3

-«

ete)

«IY

1

[ao

—,

~~

mal

aoe

FE)

13

2

|

|e

R-COMI

L-S5

ret

a

FS

a

R-S5

HB

LIS

o|

|

a

ss

@

ee

EPS

(Ms

(

ye

L-COM2

4

a

<

a

R-COM2

sacl

Pt

R-S7

sO]

C)

Dll

"

oe

AUTH

ee

=n

|

DATA

CK

SHIFT

REGISTER

-10-—