Pioneer Sx-255r User manual

dW)

PIONEER’

The

Art

of

Entertainment

ervice

Manual

STEREO

RECEIVER

M-255

SX-205

THIS

MANUAL

IS

APPLICABLE

TO

THE

FOLLOWING

MODEL(S)

AND

TYPE(S).

The

voltage

can

be

converted

by

Rower'Recwremeny

the

following

method.

AC120V

AC110V/120-127V/230V/240V

With

the

voltage

selector

AC240V

CONTENTS

1.

SAFETY

INFORMATION.

...........::0cceeneeeeeeeees

2

6.

PCB

PARTS

LIST...........-ccceeceeeeeeeeaneeeeeeeeees

23

-

CHECKING

FOR

PCB

PATTERN

OF

7.

ADJUSTMENTS

.....

0...

2c

cecees

seen

neces

eerenen

sean

26

MOTHER

ASSY..........ceceecsceeceeeeeeeeesseaeeenenee

3

8.

IC

INFORMATION

............

eerie

uncDukaretiuas

aad

28

3.

EXPLODED

VIEWS,

PACKING

AND

9.

FL

INFORMATION

..........cccc

cence

eee nee

eeneee

eerie

30

PARTS

LIST...

cc

ccceseseeecseseeeceeeereeeeseeeeseees

4

10.

FOR

SX-255R/KCXJ,

YPWXJ,

SX-205/KUXJ

4,

BLOCK

DIAGRAM

...........

SeesiteT

ich

aevcs

swede!

7

AND

SDXU

uo.

ec

ee

cee

cece

eee

e

reece

cen

eeeeeenetes

31

5.

SCHEMATIC

AND

PCB

CONNECTION

11.

SPECIFICATIONS

.....

0...

cece

eee

ee

teen

erence

34

DIAGRAMG............ccsecesseceeteeeeeeeereeseeneeeeees

8

412.

PANEL

FACILITIES

.......

0...

ccc

eeeeeeeee

eee

neees

35

PIONEER

ELECTRONIC

CORPORATION

4-1,

Meguro

1-Chome,

Meguro-ku,

Tokyo

153,

Japan

PIONEER

ELECTRONICS

SERVICE

INC.

P.O.

Box

1760,

Long

Beach,

CA

90801-1760,

U.S.A.’

PIONEER

ELECTRONIC

[EUROPE]

N.V.

Haven

1087

Keetbergiaan

1,

9120

Meisele,

Belgium

PIONEER

ELECTRONICS

ASIACENTRE

PTE.

LTD.

501

Orchard

Road,

#10-00

Lane

Crawford

Place,

Singapore

0923

©

PIONEER

ELECTRONIC

CORPORATION

1996

O-DFG

JAN.

1996

Printed

in

Japan

SX-255R,

SX-205

1.

SAFETY

INFORMATION

This

service

manual

is

intended

for

qualified

service

technicians;

it

is

not

meant

for

the

casual

do-it-yourselfer.

Qualified

technicians

have

the

necessary

test

equipment

and

tools,

and

have

been

trained

to

properly

and

safely

repair

complex

products

such

as

those

covered

by

this

manual.

Improperly

performed

repairs

can

adversely

affect

the

safety

and

reliability

of

the

product

and

may

void

the

warranty.

If

you

are

not

qualified

to

perform

the

repair

of

this

product

properly

and

safely,

you

should

not

risk

trying

to

do

so

and

refer

the

repair

to

a

qualified

service

technician.

WARNING

Lead

in

solder

used

in

this

product

is

listed

by

the

California

Health

and

Welfare

agency

as

a

known

reproductive

toxicant

which

may

cause

birth

defects

or

other

reproductive

harm

(California

Health

&

Safety

Code,

Section

25249.5).

When

servicing

or

handling

circuit

boards

and

other

components

which

contain

lead

in

solder,

avoid

unprotected

skin

contact

with

the

solder.

Also,

when

soldering

do

not

inhale

any

smoke

or

fumes

produced.

NOTICE

(FOR

CANADIAN

MODEL

ONLY)

Fuse

symbols

-§&—#}

(fast

operating

fuse)

and/or

-§E——%

(slow

operating

fuse)

on

PCB

indicate

that

replacement

parts

must

be

of

identical

designation.

REMARQUE

(POUR

MODELE

CANADIEN

SEULEMENT)

Les

symboles

de

fusible

-J&—

(fusible

de

type

rapide)

et/ou

-§E—

(fusible

de

type

lent)

sur

CCI

indiquent

que

les

piéces

de

remplacement

doivent

avoir

la

méme

désignation.

(FOR

USA

MODEL

ONLY)

1.

SAFETY

PRECAUTIONS

ANY

MEASUREMENTS

NOT

WITHIN

THE

LIMITS

The

following

check

should

be

performed

for

the

continued

protection

of

the

customer

and

service

technician.

LEAKAGE

CURRENT

CHECK

Measure

leakage

current

to

a

known

earth

ground

(water

pipe,

conduit,

etc.)

by

connecting

a

leakage

current

tester

such

as

Simpson

Model

229-2

or

equivalent

between

the

earth

ground

and

all

exposed

metal

parts

of

the

appliance

(input/output

terminals,

screwheads,

metal

overlays,

control

shaft,

etc.).

Plug

the

AC

line

cord

of

the

appliance

directly

into

a

120V

AC

60

Hz

outlet

and

turn

the

AC

power

switch

on.

Any

current

measured

must

not

exceed

0.5

mA.

-—

Leakage

F

current

Device

tester

under

test

Reading

should

not

be

above

0.5

mA

Test

ali

exposed

metal

surtaces

Also

test

with

piug

reversed

(Using

AC

adapter

plug

as

required)

+

Earth

ground

AC

Leakage

Test

OUTLINED

ABOVE

ARE

INDICATIVE

OF

A

PO-

TENTIAL

SHOCK

HAZARD

AND

MUST

BE

COR-

RECTED

BEFORE

RETURNING

THE

APPLIANCE

TO

THE

CUSTOMER.

2.

PRODUCT

SAFETY

NOTICE

Many

electrical

and

mechanical

parts

in

the

appli-

ance

have

special

safety

These

are

often

not

evident

from

visual

inspection

nor

the

protection

afforded

by

them

necessarily

can

be

ob-

tained

by

using

replacement

components

rated

for

voltage,

watiage

,

etc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

in

this

Service

Manual.

Electrical

components

having

such

features

are

identified

by

marking

with

a

/\

on

the

schematics

and

on

the

parts

list

in

this

Service

Manual.

Z

The

use

of

a

substitute

replacement

component

whic

dose

not

have

the

same

safety

characteristics

as

the

PIONEER

recommended

replacement

one,

shown

in

the

parts

list

in

this

Service

Manual,

may

create

shock,

fire,

or

other

hazards.

Product

Safety

is

continuousiy

under

review

and

new

instructions

are

issued

from

time

to

time.

For

the

latest

information,

always

consult

the

current

PIONEER

Service

Manual.

A

subscription

to,

or

ad-

ditional

copies

of,

PIONEER

Service

Manual

may

be

obtained

at

a

nominal

charge

from

PIONEER.

SX-255R,

SX-205

2.

CHECKING

FOR

PCB

PATTERN

OF

MOTHER

ASSY

1.

Remove

lower

set

screw

©

at

the

center

of

the

Chassis

and

Rear

Panel.

2.

Cut

binder

@

and

remove.

3.

Remove

the

three

screws

©

fastening

the

MOTHER

Assy,

and

the

two

screws

®

fastening

the

Radiator.

4.

Grip

the

Radiator

and

Rear

Panel,

and

lift

up

about

3

cm.

Then,

lift

up

the

MOTHER

Assy

as

shown

in

Fig.

2

so

that

it

can

be

checked.

Radiator

REG

Assy

b.—

@O

MOTHER

Assy

;

Rear

Panel

Fig.

1

Rear

Panel

SLANG,

Cree

BD

9

2

MOTHER

Assy

Fig.

2

SX-255R,

SX-205

3.

EXPLODED

VIEWS,

PACKING

AND

PARTS

LIST

NOTES

:

@

Parts

marked

by

“

NSP”

are

generally

unavailable

because

they

are

not

in

our

Master

Spare

Parts

List.

@

The

4.

mark

found

on

some

component

parts

indicates

the

importance

of

the

safety

factor

of

the

part.

Therefore,

when

replacing,

be

sure

to

use

parts

of

identical

designation.

@

Parts

marked

by

“@)

"are

not

always

kept

in

stock.

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable.

Parts

List

of

Exterior

and

Packing

(For

SX-255R/KUXJ)

Mark

No.

PPPS

bE

Apb>

NSP

om

WN

Re

Description

FL

Panel

Front

Panel

Transistor

(Q1)

Transistor

(Q2)

Transistor

(Q3)

Transistor

(Q4)

Power

Transformer

(T1)

AC

Power

Cord

Fuse

(6.3A,

FU1)

Fuse

(1A,

FU3)

Fuse

(1A,

FU4)

Chassis

Rear

Panel

Radiator

Foot

Binder

PCB

Support

Mica

Sheet

Strain

Relief

Binder

PCB

Mold

Name

Plate

Round

Knob

S

Round

Knob

L

Push

Button

Power

Button

Hinge

Button

A

Hinge

Button

B

Function

Button

Panel

Holder

Bonnet

Case

MOTHER

Assy

FL

AND

UCOM

Assy

SP

SW.

AND

HP.

Assy

TRANS

Assy

REG

Assy

VOL.

Assy

POWER

SW.

Assy

FM/AM

TUNER

FE

MODULE

Parts

No.

AAK7239

AMB7331

28C5200

28A1943

ATS7114

PDG1015

REK1085

REK1075

ANA1228

ANC7339

ANH1458

AEC1505

ZCA-BK1

AEC1581

AEE1014

CM-22C

RNE1277

AMR2533

AAK2553

PAM1608

AAB7083

AAB7082

AAD7282

AAD2531

AAD7279

AAD7280

AAD7281

ANG7087

ANE7109

AWZ8086

AWZ8090

AWZ8096

AWZ8097

AWZ8389

AWZ8092

AWZ8094

AXQ1002

Mark

No.

NSP

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

Description

PRIMARY

Assy

BARRIER

Assy

Screw

(3X14)

Screw

(3X8)

Screw

Remote

Control]

Unit

(CU-SX108)

Battery

(R6P,

AA)

Loop

Antenna

FM

Antenna

Battery

Cover

Operating

Instructions

(English)

Warranty

Card

Sub

Pad

Side

(A)

Pad

Side

(B)

Packing

Case

Packing

Sheet

Parts

No.

AWZ8369

AWZ8371

ABA1194

ABA7009

ABA7019

BBZ30P200FMC

BBZ30P080FZK

BCZ30P080FZK

BPZ26P080FMC

AXD7085

VEM-013

ATB7004

ADH1017

‘AZA7123

ARB7064

ARY1051

AHAT7051

AHA7121

AHA7122

AHD7265

AHG7026

SX-255R,

SX-205

@

Exterior

NOTE

:

Screws

adjacent

to

V

mark

on

the

product

are

used

for

disassembly.

|

Except

SX-205/SDXJ

only

$X-255R/

YPWXJ

=o

oh

ey

|

52)

20

SX-255R/

YPWXJ

and

SX-205/SDXJ_

only

SX-205/SDXJ_

only

["

|

10

|

SX-205/KUXJ.

SDXJ

9

|

4k,

|

ee

|

SX-255R/KUXJ,

KCXJ,

|

N\

YPWXJ

only

38

'

4

52

54

_

36

a

;

27

9

Ce

@

Packing

RK

59

SX-205/KUXJ,|

Se"

>

SDXJ_only

|

By

SX-255R/YPWXJ

[35

|

PNY

&

9

ox

Inte

x

BS

:

aU

>

etal

owe

SAY

Qe

SAK)

ODS

3t

|

ee

a:

|

'

Ne

Oem

S

SECT

{

5

ed

KS

SSS.

Oa

RK

oe)

a

>

Sy

oR

SO

Pee

SANK

SUPERS

.

SIR

‘

ZS:

Te

S

.

Ma

Slits

yy

SW

SS,

\-

>

Rut

See

,

Ae

“4

y

b

1

:

i

|

t

”

Except

$X-205/SDXJ_

only

62

63

64

Except

—

$X-

205/SDXJ

57

Except

<

SX-255R/

|

SX-205/KUXJ

YPWXd

only

|

5p

[and

2

1SX~

205/

SDXJ

Except

|

peceror

fsa

Ls

7}

"7

1SX-255R/

SX-205/KUXJ.[55

>

1

eee

ley

&

52

’

\

<

SDXJ_

only

r

se

ir)

7

L-2_

<4

JYPWXJ

only

o—~

£Xy

fe

’

ee

one

—

(Pp

EN

>

SX-255R/KUXJ,

KCXJ,

YPWXJ

only

28

Except

SX-255R/YPWXJ

43

29

SX-255R,

SX-205

4.

BLOCK

DIAGRAM

;

|

5.

SCHEMATIC

AND

PCB

CONNECTION

DIAGRAMS

5.1

OVERALL

SCHEMATIC

DIAGRAM

"KU",

"KC",”

SD"

mark

means

to

use

for

"YPW"

mark

means

to

use

for

a

SX-255R/KUXJ,

KCXJU

and

SX-255R/YPWXJ

models.

|

$X-—205/KUXJ,

SDXJ

models.

e)

i

Rear

WES

Geek

te

CU

ee

ae

a

bce

ay

'

J21_DBO1SNBO

for

SD

O

2

!

:

J26

DB920EB0

'

eed

x:

6

j

\

1

J21

DBO1SNBO

for

KU,

KC

a.

(—————

a

4

J25

DB220EB0

3x

A

JS5

a

i

J24

0B420EB0

i

aa

=

v4

rt

io

'

i

x>D>0A

i t

Bi

Q

A

Ruse!

J23

DB815NB0

for

KU,

KC

>

¥

-

~

ai

VOLTAGE

SELECTOR

i

[|

CC)

>

Ma

=|

1

J21

DBO15NBO

for

YPW

iO

ino

I

1

VNNNN

9

1

J27

DBS20EB0

[Tt

]

mntiilid

2

1

xxx

<j

)

a)

(4)

ace

J23

DB815NB0

for

YPW

LHRH

=)

me

es

Oi

Sate

eS

sl

Ra

ma

m

tm

7

a.

f

.

ol

j2e|pes20es0

i

J22

DB115NBO

for

SD

ee

ae

05

OQe-————__-

imi

ama

-

52)

BR

RSEEDO

:

=

NS NS

iS

iD

|

3

!

=z

224

u

|

§X-20S/SDXJ

ONLY

!

A

SS

H

§

1

|

:

1

I

8

Sono

i

.J22r

yas

J21

aetre

j

AC120V

6OHz

he

pecvay

exued

paca

reed

ost

\

'

H

SX-255R/YPWXJ

—

\

A

'

|

AC240V

SOHz

:

ip

;

j

Live

col

FU2

SX-205/SDXU

BROWN

tect

p

toeceeeS

4

|

AC1

101

20-127/230/240V

A

ARF

ods

A

REG

ASSY

CARY

canon

enon

ements

Cs

ss

mm

2

ee

He

ot

ACG

POWER

CORD

ae

(AWZ8389)

(PDG1015:

SX-255R/KUXJ,

KCXJU

FUt

(a>

SCH-4)

so

ao

sw

is

oan

Ss

oe

an

a

ee

eR

pea

peers

(>

(ADG1159:

SX-255R/YPWXJ)

FU2

REK1061~(125V

3.15A)

AKT1024—

Oe®

$X-205/SDXJ

ONLY

(ADG1157

+

SX-205/SDXJ)

op

isi

iteinicniektneseieaiiael®

4

heme

2|

E

Fu1

REK1085—~

(125V

6&.3A)

s

seems pence

©

tae)

6

EE

ES

A

OO

RY

DS

SS

SR

©

AS

EY

GG

Atte

B

ore

©

oO:

5

SX-255R/KUXU,

KCXU

,

SX-205/KUXU

ONLY

:

|

pimenseg

arene

res

teste

ae

ere

I>

7]

|

rs

CN6

AEK1058~(T2,5A

L

250V)

=

D1

5A03-150-2651

’

|

\§

Fa

w

KPD10

SX-255R/YPWXJ

ONLY

|

i

-

i

ei

al

8

coon

ee

IsIo)

!

|

we

CN9

!

Bd]

Lf

KPE3

i

ao

MOTHER

ASSY

SP

SW.

AND

(AWZ8086

:

SX—-255R/KUXJ,

KCXU)

DYY10-300—2651

QO@ORQOOOHVO

@O@QOQQ@OOODO

Pon

creer

ner

ns

eae

meee

eg

HP.

ASSY

(AWZ8087

:

SX—255R/YPWXV)

>

(AWZ8036)

(AWZ8088

:

SX-205/KUXu)

%

(se

SCH-4)

eo)

(AWZ8089

:

SX-205/SDXu)

3

(@>SCH-3,

4)

Ss

CN4

CN5

Q

KPE1S

KPE15

.

z

©

OOGGOOGHSSHOGF-O0OHHO9HOOS9OOOOD

ool

e

.

_I

D1

SA15—400-2651

D15A15-—300-2651

r

oo

8

mums

Bc

2

La

a

Ts

to

so

3

.

°

r

acs

hd

ils

ses

sha

at

“nk

cl:

al

gece

cg»

Wi,

sa

gu

sa

i

cc

in,

Seta

igen

pa,

1

.

:

;

3

a)

&

1

:

Power

sw.

assy]

|

[va

se

|

j

}

(AWZ8034)

|

AKT1019—

J3

i

(@SCH-6)

i

le

ae

ee ee

|

2

uy

o%0’%0%0

gd

o

64d

9

t

|

FR:

ya ae

CT

FL

AND

UCOM ASSY

ai

29

lt

Cs

*

(AWZ8090

:

SX-255R/KUXJ,

KCXu)

cj

|

a/A\

el.

(AWZ8091

:

SX-205/KUXJ,

SDXu)

Ej

g

.

Z

(AWZ8374

:

SX~255R/YPWX

J)

o|

5

i

|

(=>

SCH-6)

:

|

ee

:

SX-255R/KUXJ,

KCXJ,

YPWXJ

ONLY

:

fe

te

ate

ee

ee mF

eB

a

ne

ea

sd

ee

a

ed

SCH-1

7

8

OVERALL

SCHEMATIC

DIAGRAM

@NOTE

FOR

FUSE

REPLACEMENT

CAUT[ON-FOR

CONTINUED

PROTECTION

AGAINST

RISK

OF

FIRE,

REPLACE

ONLY

WITH

SAME

TYPE

AND

RATINGS

ONLY.

TRANS

ASSY

(AWZ8

097

:

SX-255R/KUXJ,

KCXJ

SX-205/KUXJ)

(AWZ8378

:

SX-255R/YPWXJ

SX-205/SDXJ)

(=>

SCH-4)

FU3

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SX-255R/KUXd,

KCXJ

FU4

125V

1A

9

SX-205/KUXJ,

SDXJ

ONLY

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|

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SX-255R/YPWXJ

ONLY

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250V

A

A,

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AKT1085—

(ATS

7114!

SX-255R/K

UXJ

=

:

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(ATS

7115

:SX—255R/KCXJ)

(ATS

7120

:

SX-255R/YPWX

J)

(ATS7117:SX-205/SDXv)

DYY1

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AKT

1

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VOL.

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KCXJ,

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:

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SDXJ)

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(e>

SCH-S)

SX-255R,

SX-205

SX-255R/YPWXd

SX-205/SDXJU

ONLY

NOTE

FOR

SCHEMATIC

DIAGRAMS

1.

When

ordering

service

parts,

be

sure

to

refer

to

“PARTS

LIST

of

EXPLODED

VIEWS”

or

"PCB

PARTS

LIST”

.

Since these

are

basic

circuits,

some

parts

of

them

or

the

values

of

some

components

may

be

changed

for

improve-

ment.

_

3.

RESISTORS:

Unit:

k:kQ,

M:MQ,

or

Q

unless

otherwise

noted.

Rated

power:

1/4W,

1/6W,

1/8W,

1/10W

unless

otherwise

noted.

Tolerance:

(F):

1%,

(G):

2%,

(K):

10%,

(M):

+20%

or

5%

un-

less

otherwise

noted.

4.

CAPACITORS:

Unit:

p:pF

or

pF

unless

otherwise

noted.

Ratings:

capacitor

(uF)

/

voltage

(V)

unless

otherwise

noted.

Rated

voltage:

50V

except

for

electolytic

capacitors.

5.

COILS:

Unit:

m:mH

or

nH

unless

otherwise

noted.

.

VOLTAGE

AND

CURRENT:

(--V]_

:

SIGNAL

voltage

at

rated

output.

VT

or

+V:

DC

voltage

(V)

at

no

input

signal

unless

otherwise

noted.

Value

in{

)

is

DC

voltage

at

rated

power.

<=

mA

or

—mA:

DC

current

at

no

input

signal

unless

otherwise

noted.

7.

OTHERS:

©

@

or

@

:

Adjusting

point.

o

<q

:

Measurement

point.

eThe

A\

mark

found

on

some

components

parts

indicates

the

im-

portance

of

the

safety

factor

of

the

parts.

Therefore,

when

re-

placing,

be

sure

to

use

parts

of

identical

designation.

8.

SCH-C)

ON

THE

SCHEMATIC

DIAGRAM:

e

SCH-O

indicates

the

drawing

number

of

the

schematic

dia-

gram.

(SCH

stands

for

schematic

diagram.)

.

SWITCHES

(Underline

indicates

switch

position):

Voltage

Selector

(SX-205/SDXJ

only)

AC110V/120—-127V/230V/240V

(TYPE

1A)

MOTHER

Assy

$401

9k/10k

(SX-205/SDXJ

only)

FL

AND

UCOM

ASSY

$826

STATION

UP

$827

STATION

DOWN

$828

CLASS

$829

MPX

MODE

$830

FREQUENCY

UP

$831

FREQUENCY

DOWN

$832

BAND

$833.

PHONO

$834

TAPE

2

$835

TAPE

1/VCR

$836

S.

BASS

S837

MEMORY

$838

CD

$839

LD/DVD

$840

TUNER

POWER

SW.

Assy

S876

POWER

STANDBY/ON

(for

SX-255R)

$401

POWER

(for

SX-205)

SP

SW.

AND

HP.

Assy

$701

SPEAKER

A

ON/OFF

$702.

SPEAKER

B

ON/OFF

SCH-1

OVERALL

SCHEMATIC

DIAGRAM

5.2

MOTHER

ASSY,

FM/AM

TUNER

FE

MODULE,

SP

SW.

AND

HP.

ASSY,

@

FM/AM

TUNER

FE

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ASSY,

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SN

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SO

RRSLERRNNN

cP

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0.047

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C844

0.047

V+5V

RO51

47k

47m/5.5

100

ACH7013

SX-205/KUXJ,

SDXJ

ONLY

EXCEPT

SX-205/KUXJ,

SDXJ

g-679ZNWV

TONE

CONTROL

R511

C509

4

‘

rl

'

E

|

Boe

a

ms

|

Bee

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s

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mean

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eeesTs

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REMOTE-CONTROL

SIGNAL

BUFFER

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6

TTT

100

0.

47/50

ie

sn

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hh

“Saal

“pc,

nin:

ea

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pee

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sa

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5834

$3838

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UP

TAPE2

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100k

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=

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5831

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3839

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FL

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ASSY

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(AWZ8030

:SX-255R/“KUXU,

KCXJ)

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7

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(AWZ8091

:SX-205/KUXJ,

SDXWJ)

STANDBY

IND

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$

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$628

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3836

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z

iy

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ba

g

bs

was

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TUNER

(AWZ8

374

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bs4

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|

Be

ce

Woo

ASey

Pe

ale

hae

ae

FLanp

ucom

assy,

|

GSCH—6

POWER

SW.

ASSY

(for

SX-255R)

POWER

SW.

ASSY

(for

SX-255R)

a

[

SX-255R,

SX-205

6.

PCB

PARTS

LIST

NOTES

:

©

Parts

marked

by

“

NSP.”

are

generally

unavailable

because

they

are

not

in

our

Master

Spare

Parts

List.

e

The

A\

mark

found

on

some

component

parts

indicates

the

importance

of

the

safety

factor

of

the

part.

Therefore,

when

replacing,

be

sure

to

use

pares

of

identical

designation.

e

Parts

marked

by

“

©”

are

not

always

kept

in

stock.

Their

delivery

time

may

be

longer

than

usual

or

they

may

be

unavailable.

@

When

ordering

resistors,

first

convert

resistance

values

into

code

form

as

shown

in

the

following

examples.

Ex.1

When

there

are

2

effective

digits

(any

digit

apart

from

0),

such

as

560

ohm

and

47k

ohm

(tolerance

is

shown

by

J

=

5

%,

and

K

=

10%).

560.2

+

56

x

10!

=

56]

47k.

Q

—

47

x

10?

=

473

0.5.02

—-

ORS

1

>

1RO

ee

eee

ee

er

erry

RDI/4PU[SI(6)

I

RDIAPULIBI

RN2H

[0]

[R]

[5]

K

RSIP

(1)[R)

[0]

K

Ex.2

When

there

are

3

effective

digits

(such

as

in

high

precision

metal

film

resistors).

RNIAPC([5\(6)(2]

0)

F

5.62kQ

—

562

x10!

=

5621

Parts

List

for

SX-255R/KUXJ

Mark

No.

Description

Parts

No.

Mark

No.

Description

LIST

OF

PCB

ASSEMBLIES

Q401

TRANSISTOR

NSP

COMPLEX

ASSY

AWK7254

Q402,Q403_

TRANSISTOR

tL-MOTHER

ASSY

AWZ8086

Q404

TRANSISTOR

FM/AM

TUNER

FE

MODULE

AXQ1002

Q406

TRANSISTOR

|—FL

AND

UCOM

ASSY

AWZ8090

Q407

TRANSISTOR

i

VOL.

ASSY

AWZ8092

I+

POWER

SW.

ASSY

AWZ8094

D301-D308

DIODE

SP

SW.

AND

HP.

ASSY

AWZ8096

D309-D312

ZENER

DIODE

TRANS

ASSY

AWZ8097

D381-D386

DIODE

REG

ASSY

AWZ8389

D387,D388

ZENER

DIODE

NSP

|-

PRIMARY

ASSY

AWZ8369

_

D389-D392

DIODE

NSP

__

BARRIER

ASSY

AWZ8371

D393,

D394.

ZENER

DIODE

D401

DIODE

D402-D405

DIODE

COMPLEX

ASSY

D406

ZENER

DIODE

OTHERS

D407

ZENER

DIODE

J21

LEAD

WIRE

UNIT

DBO15NBO

J23

LEAD

WIRE

UNIT

DB815NBO

D408

ZENER

DIODE

D409

ZENER

DIODE

D411,D412

DIODE

D413

ZENER

DIODE

MOTHER

ASSY.

D414

ZENER

DIODE

SEMICONDUCTORS

1C131

PLLIC

LM70013

D415

DIODE

IC151

AM/FM

IC

LA1851N

D416

ZENER

DIODE

10201

OP-AMP

IC

NJM4558D--D

D417

DIODE

1C202

E-SW

IC

TC9164AN

D418,D419

ZINER

DIODE

1C203

OP-AMP

IC

NJM4558D-D

RELAYS

1C301

IC

UPC4570C

RY401

RELAY

Q102

TRANSISTOR

2SA1529

Ry402

RELAY

Q1038

TRANSISTOR

2802668

Q104

TRANSISTOR

2S8A854S

COILS

AND

FILTERS

Q1301,

Q1302

TRANSISTOR

2802878

F101

CERAMIC

FILTER

Q131

N-FET

28K246

F102

-

CERAMIC

FILTER

F151

CERAMIC

FILTER

Q132

TRANSISTOR

2SC1740SLN

L131

AXIAL

INDUCTOR

Q151

TRANSISTOR

2SA933S

L151

COIL

Q191,Q192

TRANSISTOR

2SA933S

Q301,

Q302

TRANSISTOR

2802705

L152

AXIAL

INDUCTOR

Q303-Q306

TRANSISTOR

2SA1145

Q307,

Q308

TRANSISTOR

2802705

Tver

oMen

a

Q309,

Q310

TRANSISTOR

2SC1740S

ae

EOWEH

TARE

ORME

Q311,

Q312

TRANSISTOR

2804793

7\

Q313,Q314

‘TRANSISTOR

2SA1837

CAPACITORS

Q381,

Q382

TRANSISTOR

2802240

C101

CERAMIC

CAPACITOR

C102,C103

CERAMIC

CAPACITOR

C104

CERAMIC

CAPACITOR

C106,C108

©

CERAMIC

CAPACITOR

C109

CERAMIC

CAPACITOR

23

Parts

No.

DTC143ES

28C17408

28C2240

2SA965

28C2235

185252

MTZJ3.3B

188252

MTZJ10B

188252

MTZJ10B

D5SBA20(B)

S5688G

MTZJ8.2A

MTZJ13B

MTZJ6.2B

MTZJ6.8A

188252

MTZJ4.7B

MTZJ5.6A

85688G,

MTZJ5.6A

185252

MTZJ8.2A

ASR1044

ASR7001

ATF-119

ATF-107

ATF-208

LAU2R2J

ATE7001

LAU220I

ATT1223

CGCYX103M16

CGCYX473M16

CGCYX103M16

CKPUYY103M16

CCPUCH100J50

Parts

No.

CGCYX473M16

CKPUYY103M16

CGCYX103M16

CCPUCH150J50

CEAS470M25

CKPUYY103M16

CEAS470M25

CFTXA224J50

CGCYX103M16

CGCYX473M16

CEAS470M25

CEAS100M50

CGCYX473M16

CEAS100M50

CKPUYB102K50

CGCYX183M25

CEAS4R7M50

CEAS010M50

CEASR33M50

CFTXA153J50

CEAS100M50

CKPUYB102K50

CEAS4R7M50

CKPUYY103M16

CCCSL470J50

CEAS4R7M50

CGCYX103M16

CEAS470M25

CEAS101M25

CEAS4R7M50

CKCYF103Z50

CEAS2R2M50

CKCYF103Z50

CEAS2R2M50

_

CKCYF103Z50

CEAS4R7M50

CKCYB102K50

CKCYF103Z50

CEAS100M50

CEAS2R2M50

CKCYB471K50

CEAS101M50

CCCSL151K500

CEAS2R2M50

CFTXA473J50

CEAS4R7M50

CEAS101M25

CKCYF103Z50

ACH7018

CEAS101M25

CEAS102M35

CEAS470M25

CEAS471M35

CEAS101M25

CEAS471M25

Mark

No.

Description

C110,C111

CERAMIC

CAPACITOR

C113

CERAMIC

CAPACITOR

C115,C116

CERAMIC

CAPACITOR

C119

CERAMIC

CAPACITOR

C131,

C132

CERAMIC

CAPACITOR

C133

ELECT.

CAPACITOR

C134

CERAMIC

CAPACITOR

C135

ELECT.

CAPACITOR

C136

AUDIO

FILM

CAPACITOR

C137

CERAMIC

CAPACITOR

C139

CERAMIC

CAPACITOR

C151,

C152

CERAMIC

CAPACITOR

C153

ELECT,

CAPACITOR

C154

ELECT.

CAPACITOR

C155

CERAMIC

CAPACITOR

C156

ELECT,

CAPACITOR

C157

CERAMIC

CAPACITOR

C158

CERAMIC

CAPACITOR

C159

ELECT.

CAPACITOR

C162,

C163

ELECT.

CAPACITOR

C164

ELECT,

CAPACITOR

C165,C166

AUDIO

FILM

CAPACITOR

C171

ELECT.

CAPACITOR

C172

CERAMIC

CAPACITOR

C173

ELECT.

CAPACITOR

C174,C175

CERAMIC

CAPACITOR

C185

CERAMIC

CAPACITOR

C191,C192

ELECT,

CAPACITOR

C193

CERAMIC

CAPACITOR

C194

ELECT.

CAPACITOR

C207,C208

ELECT,

CAPACITOR

C209,C210

PLASTIC

FILM

CAPACITOR

CQMA822J50

C211,C212

PLASTIC

FILM

CAPACITOR

CQMA242J50

C213,C214.

ELECT.

CAPACITOR

C215,C216

CERAMIC

CAPACITOR

C217,C218

ELECT.

CAPACITOR

C219,C220

CERAMIC

CAPACITOR

C221,C222

ELECT.

CAPACITOR

C223,C224

CERAMIC

CAPACITOR

C225,

C226

ELECT,

CAPACITOR

C227

CERAMIC

CAPACITOR

C228,

C229

CERAMIC

CAPACITOR

C231,

C232

ELECT.

CAPACITOR

C301,C302

ELECT.

CAPACITOR

C303,

C304

CHRAMIC

CAPACITOR

C305,

C306

ELECT.

CAPACITOR

C307-C310

©

CERAMIC

CAPACITOR

C311,

C312

ELECT.

CAPACITOR

C317,C318

AUDIO

FILM

CAPACITOR

C381,

C382

ELECT.

CAPACITOR

C383,

C384.

ELECT.

CAPACITOR

C385,

C386

CERAMIC

CAPACITOR

C401,

C402

ELECT,

CAPACITOR

(

8200

»

F/DC71V)

C403

ELECT,

CAPACITOR

C404

ELECT.

CAPACITOR

C405

ELECT.

CAPACITOR

C406

ELECT.

CAPACITOR

C407-C409_

ELECT.

CAPACITOR

C410

ELECT.

CAPACITOR

C411

CERAMIC

CAPACITOR

24

CKCYF103Z50

Mark

No.

Description

Parts

No.

C412

CAPA.

(0.022

1

FYAC400V)

ACG1030

C413

CAPA.

(0.01

»

F/AC250V)

ACG7020

C415

ELECT.

CAPACITOR

CEAS221M16

C417

ELECT.

CAPACITOR

CEAS101M25

C421

ELECT.

CAPACITOR

CEAS101M35

C423

ELECT.

CAPACITOR

CEAS470M25

RESISTORS

VR151

VR

(10k0,0.1W

)

ACP1043

R311,R312

CARBON

FILMRESISTOR

RD1/2PM821J

A

R821-R324.

CARBON

FILM

RESISTOR

RD1/4PMF102J

/\

R329-R332

CARBON

FILM

RESISTOR

RD1/4PMF680J

/\

R347-R350

FUSIBLE

RESISTOR

RFA1/4PS4R73

A\

R351—-R354

FUSIBLE

RESISTOR

RFA1/4P8470J

/\

R355—R358

CARBON

FILM

RESISTOR

RD1/4PMF1513

/\

R3863—-R366

FUSIBLE

RESISTOR

RFAI/4PS4R7S

JN

R369,

R370

RESISTOR

(0.330,

5W)

ACN-139

R371,

R372

METALOXIDE

RESISTOR

RS2LMF1003

R881-R384_

CARBON

FILMRESISTOR

RD1/4PMF222J

/\

R395,R396

CARBON

FILM

RESISTOR

RDI/4PMF101J

R403

CARBON

FILM

RESISTOR

RD1/2PM221J

R404

METAL

OXIDE

RESISTOR

RS3LMF681J

R405,

R406

METAL

OXIDE

RESISTOR

RS38LMF272J

R409

METAL

OXIDE

RESISTOR

RS2LMF121J

R410

CARBON

FILM

RESISTOR

RD1/2PM270J

R415

RESISTOR(2.2M0,

/2W)

ACN-208

R419

METAL

OXIDE

RESISTOR

RS3LMF182J

R420

METAL

OXIDE

RESISTOR

RS3LMF681J

Other

Resistors

RD1I/4PULDO

OTHERS

AM

RF

TUNING

BLOCK

AXX7025

EARTH

METAL

PLATE

VNF-091

JACK

(6P)

AKB7012

JACK

(4P)

AKB7014

CABLE

HOLDER

(12P)

AKT1085

AC

SOCKET

1-P

AKP1060

BN101

TERMINAL

4—P

AKA1016

CN2

CONNECTOR

(9P)

KPE9

CN4,

CN5

CONNECTOR

(15P)

KPEI15

CN9

CONNECTOR

(8P)

KPE3

CN901

SPEAKER

TERMINAL

8-P

AKET7021

JA203

JACK/12V

PKN1004

X131

CRYSTAL

RESONATOR

ASS1042

X151

CRYSTAL

RESONATOR

ASS1066

FM/AM

TUNER

FE

AXQ1002

MODULE

Note:

FM/AM

TUNER

FE

MODULE

has

no

service

part.

FL

AND

UCOM

ASSY

SEMICONDUCTORS

1C501

OP-AMP

IC

1C826

CONTROL

MCU

Q501,

Q502

TRANSISTOR

Q826

TRANSISTOR

Q827

TRANSISTOR

Q828,

Q829

TRANSISTOR

Q830

TRANSISTOR

D827-D831

DIODE

D836-D839

DIODE

SWITCHES

AND

RELAYS

826-S810

SWITCH

NJM4558D-D

PDG172A

28C1740S

DTC143ES

DTA124ES

DTA143ES

DTC143ES

188252

ASG1034

Mark

No.

Description

Parts

No.

COILS

AND

FILTERS

L801

AXIAL

INDUCTOR

LAU220J

L826

AXIAL

INDUCTOR

LAU2R25

L827

AXIAL

INDUCTOR

LAU0LOS

CAPACITORS

C501,

C502

ELECT.

CAPACITOR

CEAS100M50

C503,

C504

CERAMIC

CAPACITOR

CKPUYB151K50

C505,

C506

ELECT.

CAPACITOR

CEAS100M50

C507,

C508

AUDIO

FILM

CAPACITOR

CFTXA153J50

C509,

C510

ELECT.

CAPACITOR

CEASR47M50

C511,

C512

ELECT.

CAPACITOR

CEASOR1M50

C826

CERAMIC

CAPACITOR

CKPUYY103M16

C827

ELECT.

CAPACITOR

CEAS221M10

C828

CAPACITOR

(

47mF/DC5.5V

)

ACH7013

C829

CERAMIC

CAPACITOR

CKPUYY103M16

C831

ELECT.

CAPACITOR

CEAS2R2M50

C832,

C833

CERAMIC

CAPACITOR

CKPUYY103M16

C834

ELECT.

CAPACITOR

CEAS010M50

C835

CERAMIC

CAPACITOR

CKCYB3831K50

C836—-C838

CERAMIC

CAPACITOR

CGCYX473M16

C839

CERAMIC

CAPACITOR

CKPUYF473Z50

C841,

C842

CERAMIC

CAPACITOR

CKPUYY103M16

C848,

C844

CERAMIC

CAPACITOR

CKCYF103Z50

C845-C847_

CERAMIC

CAPACITOR

CGCYX473M16

C850

CERAMIC

CAPACITOR

CKPUYY103M16

RESISTORS

VR501,

VR502

VARIABLE

RESISTOR

ACS7005

VR503

VARIABLE(500k

2)

ACS7004

Other

Resistors

RDU4PULIDO

OTHERS

REMOTE

RECEIVER

UNIT

GP1U58X

V826

FL

TUBE

AAV7026

X826

CERAMIC

RESONATOR

ASS1055

:

(7.7MHz)

VOL.

ASSY

SEMICONDUCTORS

1C601

OP-AMP

IC

NJM4558D-D

Q612,Q613

TRANSISTOR

2SA1115

Q614,Q615

TRANSISTOR

2SC2603

Q631,

Q632

TRANSISTOR

DTC143ES

CAPACITORS

C605,

C606

ELECT.

CAPACITOR

CEAS2R2M50

C607,

C608

CERAMIC

CAPACITOR

CGCYX104M16

C609,

C610

ELECT.

CAPACITOR

CEAS4R7M50

C611

ELECT.

CAPACITOR

CEANP4R7M50

C612

ELECT.

CAPACITOR

CEAS470M25

C631,

C632

AUDIO

FILM

CAPACITOR

CFTXA153J50

C633,

C634

AUDIO

FILM

CAPACITOR

CFTXA823J50

RESISTORS

VR601

VARIABLE

RESISTOR

ACX7021

(100k-A5

X22)

Other

Resistors

RDU4PULOO

OTHERS

CABLE

HOLDER

AKT1023

CN3

CONNECTOR

(12P)

KPEI2

SX-255R,

SX-205

Mark

No.

Description

POWER

SW.

ASSY

SEMICONDUCTOR

D876

RED

LED

SWITCH

S876

SWITCH

RESISTOR

R876

CARBON

FILM

RESISTOR

SP

SW.

AND

HP.

ASSY

SWITCHES

$701

PUSH

SWITCH

$702

PUSH

SWITCH

RESISTORS

R701,

R702

METAL

OXIDE

RESISTOR

OTHERS

CN701

JACK

TRANS

ASSY

OTHERS

CABLE

HOLDER

(12P)

REG

ASSY

SEMICONDUCTOR

IC401

REGULATOR

IC

CAPACITORS

C419,C420

|

ELECT.

CAPACITOR

PRIMARY.

ASSY

PRIMARY

Assy

has

no

service

part.

BARRIER

ASSY

BARRIER

Assy

has

no

service

part.

Parts

No.

BR3371XJ30A

ASG1034

RDV/4PU331d

ASG1026

ASG1017

RS2LMF331

AKN7001

AKT1085

NJM78M12FA

CEASO10M50

(R25

SX-255R,

SX-205

7.

ADJUSTMENTS

ADJUSTMENT

OF

FM

TUNER

SECTION

e

Set

the

FM/AM

selector

to

FM

BAND.

e

Connect

the

wiring

as

shown

in

Fig.

1-1.

FM

SG

(1kHz,

+75kHz

dev.)

Reception

Frequency

Display

Adjustment

Specifications

Location

ai

Adjust

so

that

the

DC

voltage

of

R151's

both

ends

becomes

.0V+50mV.

R154

Adjustment

V

=

O0VS0mV

DC

VOLTMETER

Front

End

Sencitivity

Less

than

10

dBy

V

Check

Stereo

Less

than

2%.

Distortion

Check

that

it

becomes

within

the

standard

by

Check

turning

the

IFT

T101

in

the

FM/AM

TUNER

MODULE

less

than

+90°

incase

out

of

standard.

Stereo

Separation

Less

than

23

dB.

In

case

out

of

standard,

cut

the

R157.

18

dB

V3

dB.

Adjust

so

that

the

indicator

of

TUNED

IND.

Lighting

Level

starts

to

light

up.

Note:

Make

indicator

adjustments

in

order

of

AM

—+

FM.

ADJUSTMENT

OF

AM

(MW)

TUNER

SECTION

@

Set

the

FM/AM

selector

to

AM

(MW)

BAND.

e

Connect

the

wiring

as

shown

in

Fig.

1-1.

AM

SG

(400Hz,

30%

Mod.

:

packieasds

Reception

Adjustment

Frequency

|

Adjustment

Specifications

Title

Frequency

Level

eye

ae

Location

"

(kHz)

(dBuV/m)

TUNED

IND.

,

Rae

‘

Less

than

65dB

u

V/m.

ichti

than

65

|

999kHz"!

#

<a

ca

oe

wae

|

—

|

neaiigs

mala

aes

*]

:

For

the

area

using

10

kHz

step,

frequencies

should

be

1000

kHz.

26

SX-255R,

SX-205

Loop

antenna

AM

antenna

terminal

PRODUCT

Fig.

1-1

FM

and

AM

Adjustment

Wiring

Diagram

wef

hs

DC

Voltmeter

FM

752

antenna

terminal

MOTHER

Assy

oo

FM/AM

TUNER

FE

MODULE

glee

oe

ee

Ax6100858,,,

bf

bk

ap

Seth

cnn

Ame

;

oP,

ia

ae

ecls

at.

ae

Being

Paarica

Mibien

Sao

|

POP

of

Lae:

=

”

[jfk

&,

Se

a

List

Le

Sus

3

see

sn

ae

OS

Aisi

Oman?

“Eth

otto

BRS

of

Cit

TE

os

ogee.

ies

eo

:

crane

z

R157

“TH

ae

es

ese

AMTUNE

™

Fig.

1-2

Adjustment

Points

27

SX-255R,

SX-205

8.

IC

INFORMATION

©

The

information

shown

in

the

list

is

basic

information

and

may

not

correspond

exactly

to

that

shown

in

the

schematic

diagrams.

li

PDG172A

(IC826:

FL

AND

UCOM

ASSY)

@

Receiver

Control

Micro-computer

@

Block

Diagram

INTO

INT!

TZ

NTS

EXTAL

XTAL

RST

voo

vss

1

ANO

to

ANT

(—8

A/D

CONVERTER

ik.

t

aad

sPc7oo

@

CPU

CORE

TOwlre

6

|

‘

&

18/826

+

:

ror

H

RAN

Lan

3

risvs71

Kh]

conrrotuers

|

vy

2

e

i)

so

10

$20

(2T]

ORIVER

H

80

BYTES

5

VFOPO

3

}

'

‘

AMCO

REMOCON

{FIFO

by

s

é

am

!

w

RON

csodg

SERIAL

t

pre

&

K

I

‘ex

ayres

S10Q-—~+]

INTERFACE

4

FIFO

a,

=

500

oe}

UNIT

0

!

BCKdO

Hy

$i

oe}

SERIAL

INTERFACE

UNIT

1

AQ

xa)

,

Garr

TIMER

t

SI

[ser

rename

©

I

KS

$6BtT

CAPTURE

we

[tien ewan:

RD

heE

Eo

ao

—-

ii

-

iz]

ee

a

ee

a

ee

@

Assignment

(Top

view)

@

Function

ee

PRESSES

es

ioe

e

pgs

PES/INT3O

OTs

PE4/AMCO

OTT

PES

OT8/S28

PES

OT9S2T

PET/TO

© O

TIO“S26

PRO/CINTO

OTIV/S25

PBI/ESO

O

POTIZ/S24

PB2/SCKOO

OTi3/S25

PBI/SIO

©

OTI4/522

P84/S00

©

OTIS/s2t

i

PDG172A

7

PBYSO1

©

sie

PCO/KRO

©

si7

PCIVERI

©

3

sis

PC2/KR2

0-1

FPO

PFILSIS

PC3/KR3

©

OPFE/SI4

PC4/KR4

O

OPFS/SI3

PCS/KRS

©

OPFA4sSI2

PC6/KRE

©

OPFYSIt

PC7/KRT

OM

OPF27510

PAOsANO

©

OPFI/SS

PAYvANt

©

OPFO/SE

PB4/SO0

PA2/aN2

©

OPD7/s7

6606006690666

4

PA3/AN3

PAA/ANA

PAS/ANS

PAT/ANT

28

PB2/SCKO

|

VO!

Serial

clock

(CH

0)

/O

terminal

|

PB3/SIO

I

|

Serial

data

(CH

0)

input

terminal

PB5/SCK1

|

W/O}

Serial

clock

(CH

1)

I/O

terminal

PB6/SI1

I

|

Serial

data

(CH

1)

input

terminal

CLOCK

GEN./

SYSTEM

CONTROL

RAM

624

BYTES

§=K_Y

{

Ke

_}

PEO

to

PES

KY

1

2

4Pes

to

PET

Description

External

interrupt

request

input

terminal

Remote

control

reception

circuit

input

terminal

16

bit

timer/counter

rectangular

wave

output

terminal

External

capture

input

terminal

to

the

16-

bit

timer/counter

Serial

interface

(CH

0)

chip

select

input

terminal

O

|

Serial

data

(CH

0)

output

terminal

O

|

Serial

data

(CH

1)

output

terminal

Pioneer SX-255R User manual

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