Service Manual for PIONEER A207

ORDER NO.

RRV1912

T - IZK APR. 1998 Printed in Japan

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923

PIONEER ELECTRONIC CORPORATION 1998

c

1. SAFETY INFORMATION ...................................... 2

2. EXPLODED VIEWS AND PARTS LIST ................ 3

3. SCHEMATIC DIAGRAM ....................................... 6

4. PCB CONNECTION DIAGRAM .......................... 14

5. PCB PARTS LIST ............................................... 22

6. ADJUSTMENT .................................................... 25

CONTENTS

7. GENERAL INFORMATION ................................ 26

7.1 IC ................................................................. 26

7.2 DISASSEMBLY ........................................... 27

7.3 BLOCK DIAGRAM ....................................... 28

8. PANEL FACILITIES AND SPECIFICATIONS .... 29

A-307R

STEREO AMPLIFIER

A-207R

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

PHONES

A SPEAKERS B

OFF

ON

STEREO AMPLIFIER

Direct Energy MOS

TAPE 1

/MD

TAPE 2

MONITOR

LINE

TUNER

PHONO

CD

BASS

+

TREBLE

+

VOLUME

MIN

MAX

LOUDNESS

DIRECT

BALANCE

R

L

INPUT SELECTOR

TAPE 2

MONITOR

POWER

Type

Model

Power Requirement

A-307R

A-207R

MYXJ/EW

AC220-230V

MYXJ/GR

AC220-230V

MVXJ

AC220-230V

SAMXJ

AC110V/120-127V/220V/240V

With the voltage selector

SDXJ

AC110V/120-127V/220V/240V

With the voltage selector

The voltage can be converted by the

following method.

The illustration shows the A-307R.

2

A-307R, A-207R

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

(slow operating fuse) on PCB indicate that replacement parts must

be of identical designation.

REMARQUE

(POUR MODÈLE CANADIEN SEULEMENT)

Les symboles de fusible

(fusible de type rapide) et/ou

(fusible de type lent) sur CCI indiquent que les pièces

de remplacement doivent avoir la même désignation.

ANY MEASUREMENTS NOT WITHIN THE LIMITS

OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL

SHOCK HAZARD AND MUST BE CORRECTED BEFORE

RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance

have special safety related characteristics. These are

often not evident from visual inspection nor the protection

afforded by them necessarily can be obtained by using

replacement components rated for voltage, wattage, 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.

The use of a substitute replacement component which does

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 continuously 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 additional copies of, PIONEER

Service Manual may be obtained at a nominal charge from

PIONEER.

1. SAFETY PRECAUTIONS

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 60Hz outlet and turn the AC power switch

on. Any current measured must not exceed 0.5mA.

(FOR USA MODEL ONLY)

Leakage

current

tester

Reading should

not be above

0.5mA

Device

under

test

Test all

exposed metal

surfaces

Also test with

plug reversed

(Using AC adapter

plug as required)

Earth

ground

AC Leakage Test

3

A-307R, A-207R

2.1 PACKING

Mark No.

Description

Part No.

2. EXPLODED VIEWS AND PARTS LIST

NOTES:

· Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.

· The 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.

· Screws adjacent to mark on the product are used for disassembly.

1

Operating Instructions

See Contrast table(2)

(English)

2

Operating Instructions

See Contrast table(2)

(German)

3

Operating Instructions

See Contrast table(2)

(French/Italian/Dutch/Swedish/Spanish/Portugese)

NSP

4

Warranty Card

See Contrast table(2)

5

Remote Control Unit (CU-A014) AXD7163

6

Battery Cover

AZN2249

NSP

7

Dry Cell Battery (R6P,AA)

VEM-013

8

Side Pad L

AHA7205

9

Side Pad R

AHA7206

10

Sub Pad

AHA7218

11

Packing Case

See Contrast table(2)

NSP

12

Literature Bag

AHG1180

13

Packing Sheet

AHG7015

14

Operating Instructions

See Contrast table(2)

(Chinese)

15

Caution Label 220V

See Contrast table(2)

16

Case Label

See Contrast table(2)

NSP

17

Air Cap

See Contrast table(2)

18

Power Cord

See Contrast table(2)

19

Power Cord with Fuse

See Contrast table(2)

20

Fuse (T5A)

See Contrast table(2)

21

Operating Instructions

See Contrast table(2)

(Spanish/Chinese)

(1) PACKING PARTS LIST

(2) CONTRAST TABLE

A-307R/MYXJ/EW, MYXJ/GR, SAMXJ, SDXJ, A-207R/MYXJ/EW, MYXJ/GR and MVXJ are constructed the same

except for the following :

k

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k

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a

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R

7

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-

AR

7

0

2

-

A

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E

/

J

X

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MR

G

/

J

X

Y

MJ

X

M

A

SJ

X

D

SW

E

/

J

X

Y

MR

G

/

J

X

Y

MJ

X

V

M

P

S

N

P

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N

1

2

3

4

1

4

1

5

1

6

1

7

1

8

1

9

1

0

2

1

2

)

h

s

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E

(

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G

(

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I

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n

a

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I

/

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3

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C

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4

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7

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9

0

7

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1

7

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1

8

5

7

D

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A

6

8

1

7

C

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3

0

1

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A

2

3

0

7

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N

8

1

0

7

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1

7

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6

5

7

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1

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A

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0

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5

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7

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6

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N

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N

4

5

1

G

D

A

d

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s

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t

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8

3

1

7

B

R

A

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d

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s

u

t

o

N

9

0

7

Y

R

A

1

6

5

7

D

H

A

d

e

s

u

t

o

N

d

e

s

u

t

o

N

d

e

s

u

t

o

N

7

8

0

1

G

H

A

d

e

s

u

t

o

N

6

5

1

G

D

A

6

4

0

1

K

E

A

d

e

s

u

t

o

N

6

12

17

20

19

13

8

10

11

9

5

7

18

MVXJ type Only

Except

MVXJ type

1 (Except

MYXJ/GR type)

15

(SAMXJ type

Only)

3 (MYXJ/EW

type Only)

14 (SAMXJ

type Only)

21 (SDXJ

type Only)

16 (SAMXJ

type Only)

2 (MYXJ/EW and

MYXJ/GR types

Only)

4 (MYXJ/EW,

MYXJ/GR and

MVXJ types

Only)

FRONT

4

A-307R, A-207R

2.2 EXTERIOR

25

41

18

28

37

39

34

35

5

3

41

16

1

2

9

30 or 45

31

33

31

32

38

27

29 or 44

14

39

21

39

14

20

17

12

22

19

23

20

13

39

A-307R/SAMXJ

and SDXJ

Types Only

A-307R

/SAMXJ

Type Only

A-307R Only

42

39

40

46

39

7

15

39

4

43

8

15

6

39

11

17

39

24

39

26

39

36

A-307R Only

A-307R/

SAMXJ and

SDXJ Types

Only

A-307R

Only

5

A-307R, A-207R

1

FRONT L Assy

AWX7123

2

FRONT R Assy

AWX7124

3

OPT Assy

AWX7125

4

AC PRIMARY Assy

See Contrast table(2)

NSP

5

HEADPHONE Assy

AWX7114

6

VOLUME Assy

AWX7118

7

AF Assy

See Contrast table(2)

8

Fuse (FU1)

See Contrast table(2)

9

Flexible Cable (19P)

ADD7032

(AF CN202-FRONT R CN601)

10

· · · · ·

11

Power Transformer (T1)

See Contrast table(2)

NSP

12

Chassis

ANA7064

13

Rear Panel

See Contrast table(2)

14

Insulator

PNW2766

15

Screw

ABA1018

16

Screw

ABA1027

17

Screw (4

× 10)

ABA7047

18

Nut

ABN-065

19

PCB Support

AEC7006

20

Rubber Spacer

See Contrast table(2)

NSP

21

PCB Holder

AEC7057

NSP

22

Cord Clamp F

AEC7134

23

PCB Mold

AMR2533

NSP

24

Damping Plate

See Contrast table(2)

NSP

25

Shield Plate

ANK7043

Mark No.

Description

Part No.

Mark No.

Description

Part No.

(1) EXTERIOR PARTS LIST

26

Screw

PBA1096

27

LED Lens

AAK2459

28

IR Filter

AAK7532

29

LED Lens T

See Contrast table(2)

30

Name Plate

See Contrast table(2)

31

Rotary Knob A

AAB7148

32

Rotary Knob B

AAB7149

33

Volume Knob

AAB7150

34

Speaker Button

AAD7435

35

Power Joint

AAD7439

36

Bonnet Case

ANE7183

37

Panel Base

AMB7489

38

Front Panel

See Contrast table(2)

39

Screw

BBZ30P080FZK

40

Screw

BCZ30P060FCC

41

Nut

NK90FUC

42

Voltage Selector (S2)

See Contrast table(2)

43

Fuse (FU2, FU3 : 2A)

See Contrast table(2)

44

LED Lens A

See Contrast table(2)

45

PIONEER Badge

See Contrast table(2)

46

Label (Rear Base)

See Contrast table(2)

(2) CONTRAST TABLE

A-307R/MYXJ/EW, MYXJ/GR, SAMXJ, SDXJ, A-207R/MYXJ/EW, MYXJ/GR and MVXJ are constructed the same

except for the following :

k

r

a

M.

o

Nn

o

i

t

p

i

r

c

s

e

D

d

n

a

l

o

b

m

y

S

.

o

N

t

r

a

P

s

k

r

a

m

e

R

7

0

3

-

AR

7

0

2

-

A

W

E

/

J

X

Y

MR

G

/

J

X

Y

MJ

X

M

A

SJ

X

D

SW

E

/

J

X

Y

MR

G

/

J

X

Y

MJ

X

V

M

P

S

N

4

7

8

1

3

1

0

2

4

2

9

2

0

3

8

3

2

4

3

4

5

4

6

4

y

s

A

Y

R

A

M

I

R

P

C

A

y

s

A

F

A

)

A

2

:

1

U

F

(

e

s

u

F

)

A

5

.

2

:

1

U

F

(

e

s

u

F

)

A

3

.

6

:

1

U

F

(

e

s

u

F

)

A

5

2

.

1

:

1

U

F

(

e

s

u

F

)

V

0

3

2

-

0

2

C

A

:

1

T

(

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f

s

n

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a

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T

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o

P

)

V

0

4

2

/

V

0

2

/

V

7

2

1

-

0

2

1

/

V

0

1

C

A

:

1

T

(

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a

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D

T

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L

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a

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N

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F

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2

S

(

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A

2

:

3

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F

,

2

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F

(

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A

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a

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N

O

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a

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a

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R

(

l

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b

a

L

3

1

7

X

W

A

9

1

7

X

W

A

5

2

0

1

K

E

R

d

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s

u

t

o

N

d

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u

t

o

N

d

e

s

u

t

o

N

8

1

7

S

T

A

d

e

s

u

t

o

N

3

4

6

7

C

N

A

4

3

0

7

C

E

A

6

1

2

7

R

M

A

4

5

7

K

A

4

0

7

M

A

4

1

7

B

N

A

d

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u

t

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N

d

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N

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u

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3

1

7

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9

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7

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8

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3

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M

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5

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9

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6

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9

8

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5

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N

A

4

3

0

7

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6

1

2

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R

M

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4

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K

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4

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7

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9

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4

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6

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PIONEER A207 Service Manual

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