Pioneer A-09 Manuale utente

@)

PIONEER’

The

Art

of

Entertainment

Service

Manual

STEREO

AMPLIFIER

A-09

THIS

MANUAL

IS

APPLICABLE

TO

THE

FOLLOWING

MODEL(S)

AND

TYPE(S).

ORDER

NO.

ARP2858

CONTENTS

1.

EXPLODED

VIEWS,

PACKING

AND

PARTS

LIST

-::

2

2.

SCHEMATIC

AND

PCB

CONNECTION

DIAGRAMS:::

8

3.

PCB

PARTS

LIST

cccccsreerecceeee

eee

seeceseeeeeeaeerneeressea

51

4.

BLOCK

DIAGRAM

cereccccrcccerettettteerreeneteeeeeenennneres

55

5.

CIRCUIT

DISCRIPTION

coreeceeccecresteeeeteceesteeeeeeereees

56

6.

ADJUSTMENTS

ccccccecerreeecceeeceeerereeceeeeeeenteesseanen

57

7.

PANEL

FACILITIES

rerrretecrcereteeteecceccecereteeteenseanes

58

8.

SPECIFICATIONS

ccccececcececcreeeeceseeeeeeeeeeeeensaneeeene

60

PIONEER

ELECTRONIC

CORPORATION

2-1,

Meguro

1-Chome,

Meguro-ku,

Tokyo

153,

Japan

PIONEER

ELECTRONICS

SERVICE

INC.

P.O.

Box

1760,

Long

Beach,

California

90801

U.S.A.

PIONEER

ELECTRONICS

OF

CANADA,

INC.

300

Allstate

Parkway

Markham,

Ontario

L3R

OP2

Canada

PIONEER

ELECTRONIC

[EUROPE]

N.V.

Haven

1087

Keetberglaan

1,

9120

Melsele,

Belgium

PIONEER

ELECTRONICS

AUSTRALIA

PTY.

LTD.

178-184

Boundary

Road,

Braeside,

Victoria

3195,

Australia

TEL:

[03]

580-9911

©

PIONEER

ELECTRONIC

CORPORATION

1994

SEE

ee

eeerna

ree

A-09

1.

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

A\

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.

1.1

PARTS

LIST

Mark

No.

Description

Parts

No.

Mark

No.

Description

Parts

No.

1

ROTARY

KNOB

L

AAB1285

46

SHEET

AEE1014

2

ROTARY

KNOB

§S

AAB1286

47

TOP

PAD

AHA2031

3.

POWER

KNOB

ASSY

AAD2281

48

BOTTOM

PAD

AHA2032

4

ESCUTCHEON

AAH1059

49

PACKING

CASE

AHD2757

5

INDICATOR

LENS

AAK2303

50

DIODE

1

ASSY

AWZA863

6

ESCUTCHEON

AAK2304

51

PHONO

BALANCE

ASSY

AWZ4864

7

SASH

SPACER

AAK2305

©

52

POWER

R

I/O

ASSY

AWZA250

8

BONNET

ESCUTCHEON

AAK2306

©

(POWER

L

I/O

ASSY)

AWZA249

9

ESCUTCHEON

S

AAK2317

NSP

53

VINYL

POUCH

AHG1163

10

AL

PANEL

AAP1250

A

54.

TERMINAL

2—P

AKC

-—071

11

INPUT

ASSY

AWZ4861

NSP

55

GROUND

TERMINAL

AKE

—046

12.

VOLTAGE

AMP

ASSY

AWZA862

56

SPEAKER

TERMINAL

1—P

AKE1046

13.

WASHER

WS40PKI

57.

SPEAKER

TERMINAL

1

—P

AKE1047

14.

BINDER

AEP—215

58

FUSE

HOLDER

AKR1005

15

SCREW

ABA

—298

NSP

59

DUST

COVER

AKT1046

16

SCREW

(STEEL)

ABA1006

NSP

60

CHASSIS

BASE

AMAI1010

17.

SCREW

(STEEL)

ABAIOI1

61

HOLDER

AMR1178

18

SCREW

(STEEL)

ABA1050

NSP

62

POWER

SWITCH

HOLDER

AMR2405

19

SCREW

ABA1056

NSP

63

FOOT

AMR2468

20

SCREW

ABA1022

NSP

64

VOLUME

STOPPER

AMR2458

21

SCREW

ABA1I156

NSP

65

SIDEPANELR

ANA1203

22

WASHER

(COPPER)

ABE1001

NSP

66

SIDE

PANEL

L

ANA1204

23

BUSH

ABFI015

67

FRONT

PANEL

A

ANB1516

24

COIL

SPRING

A

ABH1056

68

FRONT

PANEL

B

ANB1537

NSP

25

SPACER

RING

AEB1080

NSP

69

REAR

PANEL

L

(MTL)

ANC2236

NSP

26

RUBBER

RING

AEB1185

NSP

70

REAR

PANEL

R

(MTL)

ANC2237

NSP

27.

AC

CORD

HOLDER

AEB1200

71

TOPPLATEA

ANE1358

NSP

28

DAMPERA

AEB1204

72

TOP

PLATE

B

ANE1359

NSP

29

DAMPER

B

AEB1205

NSP

73

BOTTOM

PLATE

ANF1089

NSP

30

DAMPERC

AEB1206

NSP

74

PCB

HOLDER

ANGI745

NSP

31

VR

DAMPER

RUBBER

AEB1207

NSP

75

EARTH

PLATE

ANG1664

NSP

32

RUBBER

AEB1210

NSP

76

CHASSIS

HOLDER

ANG1665

NSP

33

RUBBER

AEB1211

NSP

77

PCB

HOLDERC

ANG1667

NSP

34

RUBBER

STOPPER

AEB1215

NSP

78

PCB

HOLDERG

ANG1668

NSP

35

MOUNTING

PLATE

AKF1021

NSP

79

SIDE

SASH

HOLDER

ANG1737

NSP

36

COVER

AEC

—294

NSP

80

AC

CORD

COVER

ANG1672

37.

BINDER

AEC

—826

NSP

81

CHEMICON

METAL

BAR

ANG1673

38

NYLON

RIVET

AEC1160

NSP

82

PCB

HOLDER

H(MTL)

ANG1675

39

HOLDER

-

AEP

—098

NSP

83

EARTH

PLATEB

ANG1696

NSP

40

AC

CORD

CATCHER

AEC1397

NSP

84

CHEMICON

BAND

ASSY

L

ANG1721

NSP

41

SHIELD

PLATE

ASSY

AEC1401

NSP

85

CHEMICON

BAND

M

ANG1722

NSP

42

PVC

PANEL

AEC1409

NSP

86

CHEMICON

PLATE

ANG1723

NSP

43

SHIELD

PLATE

ASSY

AEC1432

87

TRANSISTOR

COVER

L

ANG1724

NSP

44

SHIELD

PLATE

ASSY

AEC1458

88

TRANSISTOR

COVER

M

ANG1725

NSP

45

SHIELD

PLATE

ASSY

AEC1434

@

89

PROTECTION

ASSY

AWZA251

A-09

Mark

No.

Description

Parts

No.

Mark

No.

Description

Parts

No.

NSP

90

HEAT

SINKR

ANH1382

As:

138

)~—-

Q26(Q25)

TRANSISTOR

2SA1837

NSP

(HEAT

SINK

L)

ANH1380

A139

——-

Q30(Q29)

TRANSISTOR

2SA1837

NSP

91

HEAT

SINK(MTL)

ANH1385

A140

Q18(Q17)

TRANSISTOR

28C4793

NSP

92

REAR

BOX

A(MTL)

ANK1486

A.

141_~—s

Sl

PUSH

SWITCH

ASG

—

353

NSP

93

REAR

BOXB

ANK1206

A

142_—s

Tl

POWER

TRANSFORMER

ATS1

487

NSP

94

REAR

BOXC

ANK1207

143.

VARIABLE

RESISTOR

ACW

—133

NSP

95

REAR

BOX

D

ANK1208

NSP

144

SHIELD

PLATE

ASSY

AEC1437

NSP

96

REAR

BOXE

ANK1209

NSP

145

SHIELD

PLATE

ASSY

AEC1436

NSP

97

SHAFT

ASSY

ANL1054

146

SCREW

(STEEL)

ABA1047

NSP

98

LONG

SHAFT

ASSY

ANL1051

147.

SCREW

ABAI114

99

SCREW

BMZ30P140FCC

148

SCREW

ABZ35P080FCU

100

SCREW

IPZ30PO80FCC

149

SCREW

ABZ35P250FCU

101

SCREW

IPZ30P120FCU

150

SCREW

AMZ30P0SOFCU

102.

INSTRUCTION

MANUAL

ARE1321

151

SCREW

IBZ30P250FCU

(English/French/German/Italian/

152.

SCREW

PMZ30P0SOCAD

Swedish/Dutch/Spanish/

Portguese)

153.

SCREW

PMB40P160FCU

@®

103

FUNCTON

ASSY

AWZA252

154

SCREW

PMB40P300FCU

@©

104

DIODE

2

ASSY

AWZA4253

155

WASHER

WB40FCU

@®

105

LED

ASSY

AWZA274

156

NUT

ABN—073

©

106

POWER

R

NPN

ASSY

AWZ4530

157

NUT

NB40FCU

@

(POWER

L

NPN

ASSY)

AWZA4528

158

NUT

NK70FCU

107

SCREW

BMT30P080FCU

NSP

159

DAMP

PLATE

A

ANK1214

108

SCREW

BMZ30P080FCU

NSP

160

DAMP

PLATE

B

ANK1215

109

SCREW

BPZ30P120FZK

NSP

161

DAMP

PLATEC

ANK1216

110

NUT

NK90FCU

NSP

162

TAPE

AEH1020

111.

NAME

PLATE

PAN1262

NSP

163

TAPE

AEH1021

112

SCREW

PMZ40P060CAD

NSP

164

TAPE

AEH1022

113.

SCREW

BBZ40P120FCU

165

RUBBER

SHEET

AEB1012

114

SCREW

(STEEL)

ABA1009

NSP

166

SPACER

AEB1216

115

Cl

ELECTR.CAPACITOR

ACH1221

NSP

167

RUBBER

AEB1222

(33000,1F/50V)

168

WASHER

ABF1016

116

C2

ELEBCTR.CAPACITOR

ACH1221

169

WASHER

ABF1027

(33000LLF/S0V)

170

WASHER

ABE—053

117.

C3

ELECTROLYTIC

CAPACITOR

ACHi222

NSP

171

PCB

HOLDER

ANL1052

(12000

F/56V)

NSP

172

SHIELD

PLATE

ASSY

AEC1455

118

C4

ELECTROLYTIC

CAPACITOR

ACH1223

(12000,F/56V)

173

SCREW

ABA1054

174

SCREW

PMZAOPO80FCU

A

119)

C5

CAPACITOR

(0.01/AC400V)

|

ACG1003

175

BINDER

AEC

—093

A

120.)

C6

CAPACITOR

(0.01/AC400V)

ACG1003

“A

121.)

AC

POWER

CORD

ADG1093

A

122.

FUSE

I=T2.5A,V=250

AEK

—512

@©

123.

POWER

R

PNP

ASSY

AW7ZAS531

Note:

The

descriptions

in

parentheses

for

No.

52,

90,

106,

123,

and

125--140

are

for

the

L

side

heat

sink

assy.

©

(POWER

L

PNP

ASSY)

AWZA4529

@

124

REC

SEL.

SW

ASSY

AWZA4532

A125.

Q4(Q3)

TRANSISTOR

2SA1265N

A126

~—-

Q8(Q7)

TRANSISTOR

2SA1265N

A

127.

Q12(Q11)

TRANSISTOR

2SA1265N

A128

~—-

Q16(Q15)

TRANSISTOR

2SA1265N

A

129s

Q2(Q1)

TRANSISTOR

2SC3182N

A

130)

Q6(Q5)

TRANSISTOR

28C3182N

A131.

Q10(Q9)

TRANSISTOR

2SC3182N

A132.

Q14(Q13)

TRANSISTOR

2SC3182N

A

133

Q24(Q23)

TRANSISTOR

28C4793

A134.

~—-

Q28(Q27)

TRANSISTOR

28C4793

A

135)

Q32(Q31)

TRANSISTOR

2SC4793

A

136

=

Q20(Q19)

TRANSISTOR

2SA1837

A137

Q22(Q21)

TRANSISTOR

2SA1837

A-09

|

1.2

PACKING

47

(2/2)

102

<a

48

(2/2)

47

(1/2)

7

53

NOTE:

Screws

adjacent

to

v

mark

on

product

are

used

for

disassembly

R

side

heat

sink

assy

(Top

view)

(The

L

side

heat

sink

assy

is

symmetrical

with

the

R

side

heat

sink

assy.)

#3.

.No.

151

iY,

5)

Te

SBN

CY

7

ee

R

side

heat

sink

assy

Bottom

view

Rear

box

section

&

>

o

S

c

2

o

3

3S

a

8

E

a

4

oO

L

side

heat

sink

assy

Front

panel

section

(Rear

view)

\\

3°

WAN

1.3

EXPLODED

VIEWS

Rear

box

section

(Top

view)

A-09

2.

SCHEMATIC

AND

PCB

CONNECTION

DIAGRAMS

2.1

OVERALL

SCHEMATIC

DIAGRAM

eS

NOTE

FOR

SCHEMATIC

DIAGRAMS

(Type

1A)

'

SS

1.

When

ordering

service

parts,

be

sure

to

refer

to

7%

OTHERS:

=~

i

“PARTS

LIST

of

EXPLODED

VIEWS”

or

“PCB

ao

ake

Aen

point

”

°

:

Measurement

point.

PARTS

LIST”.

e

The

A

mark

found

on

some

component

parts

indicates

the

im-

POWER

L

NPN

ASSY

(AWZ4528)

(ap

SCH-6)

POWER

L

POWER

R

PNP

ASSY

NPN

ASSY

(AWZ4529

)

(AWZ4530)

(=>

SCH-6)

(=>

SCH-7)

POWER

R

PNP

ASSY

(AWZ4531)

(=®

SCH-7)

Tt?

portance

of

the

safety

factor

of

the

parts.

Therefore,

when

re-

2.

Since

these

are

basic

circuits,

some

parts

of

them

or

the

;

:

placing,

be

sure

to

use

parts

of

identical

designation.

values

of

some

components

may

be

changed

for

improve-

ment.

8.

SCH—O

ON

THE

SCHEMATIC

DIAGRAM:

3.

RESISTORS:

e

SCH—D

indicates

the

drawing

number

of

the

schematic

dia-

Unit:

k:kQ,

M:MQ,

or

Q

unless

otherwise

noted.

gram.

(SCH

stands

for

schematic

diagram.}

Rated

power:

1/4W, 1/6W,

1/8W,

1/10W

unless

otherwise

9.

SWITCHES

(Underline

indicates

switch

position):

OC

DETEC

CONTROL

+12V

oe

6

Ala

4

POWER

L

1/0

170

noted.

Si

POWER

auetiaek

ASSY

ae

ascsiabe

tas

Tolerance:

(F):

+1%,

(G):

+2%,

(K):

+10%,

(M):

+20%

or

+5%

un-

MGS

eee

19)

A

At

eee:

14)

A

less

otherwise

noted.

REC

SEL.

SW

ASSY

2sc3iaen

2saszenn

asc3ieen

25al2ese

4.

CAPACITORS:

$802

REC

SELECTOR

avs

any

aes,

aes

Unit:

p:pF

or

pF

unless

otherwise

noted.

A

<9)

QS

A

Ay

14)

A

Ratings:

capacitor

(uF)/

voltage

(V)

unless

otherwise

noted.

FUNCTION

SW

ASSY

ascsiein

Benl2eon

asesiabe

aoa

Rated

voltage:

50V

except

for

electrolytic

capacitors.

$801

INPUT

SELECTOR

4

ae3

‘

5.

COILS:

“©

3

2S5C3182N

'

A

At

yA

2804793

a1

ced

2SA1837

a2

16Or,

2Sal2esn

Unit:

m:mH

or

pH

unless

otherwise

noted.

6.

VOLTAGE

AND

CURRENT:

:

Signal

voltage

at

rated

output.

VL

jJor+

Vv:

DC

voltage

(V)

at

no

input

signal

unless

otherwise

noted.

Value

in{

)

is

DC

voltage

at

rated

power.

©

mA

or+

mA:

OC

current

at

no

input

signal

unless

otherwise

noted.

02

A

2SA1837

at

A

2SC4793

CND

on

PHONO

BALANCE

ASSY

aay

(AWZ4864

)

(=

SCH-3)

CNSo7

BALANCE

28C4793

2sc4793

Os;

A

CONTROL

DIODE

2

SOURCE!

2-1

+1eM

ASSY

eaunces®

DG

DETECT

(AWZ4253

)

:

ees

CONTROL

(=>

SCH-8)

3

GNo

+1ev

2

TUNER

OND

HONG

cx)

PROTECTION

[

PaRnTECTLON

:

CONTROL

ASSY

Fs

=

+lev

(AWZ4251

)

=

ena

(=>

SCH-8)

:

=

CONTROL

a

+12¥

J

4

|

CNO

:

=

CONTROL

ro!

+12V

oe

gD

mae

lh

rl

ire

GND

a

())

iT

=

+h

|

Sela

on

iar

eae

ee

=.

r]

a

rT

me

Bie

GND

ft

H

HH

:

{

z

REAR

BOX

PHONO

L

eS

-

fe

.

HH

Be

oe

HH

(|

GND

:

Space

8

PHONO

R

-

;

*

=

428V

z

ane

Sere,

Ua

gies

ye

_

"

ae

ota

:

Cee

-

ae

a

a“

—

ft

—th

128V

:

es

Se

tats

==

:

Ss

af,

Eaeies

|

as

-28V

vey

he

—3>

=

ane

—

eg

|

Ht

U.GND

pees

|

PHONO.

GND

.

aun.

a

fs

-

new

=

a

Si

t=

t

tT

R.GND

Ds

see

See

?

-

Cpe

i

—_-

3

-

Be

he

an

H

7

|

=

=o

HEAT

SINK

Oh

a

J

PLE

INPUT

ASSY

ot

uso

‘

(AWZ4861

)

fay

sono

(ean

i

=

TABED/DAT

(=>

SCH-2)

—!

<n

nes fac

oe

es

CONTROL

CEM1-CON

a

PLATE

GND

AMP

+tev

LLIN

(AWZ

4862)

=

(=>

SCH—-S)

:

4

ot

5

dst

4

VOLTAGE

AMP.L

ae

=

epee

raya

aks

3

=

we

:

F

Ty

nt

TRANS

GND

SCREW

GND

Scena

eet

=

iow

=

TTI

ea

DIODE

1

FROW

L

VOL.

lid

is

-

:

7

ASSY

TO

L

VOL.

1P710

AC

(AWZ

4863

)

GND

7

ene

-

oe

mar

;

wip,

ac

(=e

SCH~-8)

A

VOLTAGE

AMP.R

=

=f

:

-

=

FUNCTION

SW

“AC

POWER

CORD

GND

ball

i

ADG1093

ASSY

AC220-230V

S

CND

3

i

me

(AWZ4252)

TY

es

A

50/60Hz

a

|

er

=

a

POWER

5

pee

=

:

cra

f

REC

SEL.SW

ASSY

Pea

LED

ASSY

ioe

ai

2

C

2

(AWZ4532)

Leo

(AWZ4274)

foo

a

°

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17

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