Sanyo JA 300 Manuale utente

SERVICE

MANUAL

POWER

AMPLIFIER

TA

300

(EUROPE)

SPECIFICATIONS

NOTE:

,

The

below

mentioned

specifications

are

mainly

based

on

the

[HF

measurements

standard.

They

can

therefore

not

directly

be

compared

with

specifications

based

on

the

DIN

standard

or

ther

standards.

Continous

output

power

.......

25Wx

2

(at

8.ohms,

Graphic

equalizer

controls

........

+10

dB

(63/250/1000/

0.3%

distortion)

4000/16000

Hz)

Total

harmonic

distortion

......

0.1%

(20

W

output,

High

filter

response

......,.......

7

kHz

(—6

dB/oct.)

8

ohms)

Loudness

control

response

Input

sensitivity

and

impedance

WORZTOKH?

cacanecscesasd

+8

dB/+4

dB

PHONO

os

cckaee

ean

ads

2.5

mV/47

kohms

Signal

to

noise

ratio

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

90

dB

|

AUX/TUNER/TAPE

PLAY

...

150mV/47

kohms

Power

requirements

..:.........

AC:

220V,

50Hz

Phono

overload

ifevel

..........

130

mV

RMS

(at

1kHz)

Powerconsumption

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

130

W

Output

level

AC

output

socket

............5.

AC:

18

V,

300

mA

_TAPE.REC

...........;.

150mV

Dimensions

(Approx.)

...........

420

(W)

x

220

(D)

x

Frequency

response

......

~«e.

20—20000

Hz.

85

(H)

mm

|

(16-1/2”

x

8-5/8"

x3-3/8”’)

Weight

(Approx.)

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

4

kg

(9

Ibs.)

*

Specifications

subject

to

change

without

notice.

WM-8507

DISMOUNTING

OF

CABINET

AND

FRONT

PANEL

Perform

disassembly

of

amplifier

after

removing

the

power

supply

cord

with

out

fail.

@

Revove

parts

in

order

of

disassembly

as

numdered.

1.

TO

DISMOUNT

CABINET

(4),

Take

out

total

4

screws

(Binding

head

tapping

4

x

8mm

1)

from

cabinet.

|

(2).

Take

out

1

screw

(Binding

head

tapping

3

x

6mm

2

)

from

cabinet.

2.

TODISMOUNT

FRONT

—

PANEL

(1).

Remove

volume

control

knob

and

function

select

knob.

—

(2).

Take

out

total

6

screws

(Binding

head

tapping

3

x

12mm

6)

from

front

panel.

ADJUSTMENT

OF

BIAS

ii

CONDITIONS

VOLUME

KNOB

:

“Q”

(Minimum)

GRAPHIC

EQUALIZER

KNOB

-

:

“0”

(Center)

BALANCE

KNOB

:

“OQ”

(Center)

FUNCTION

KNOB

:

“aux”

MONITOR

BUTTON

;

“source”

Hi

—

FILTER

BUTTON

:

“ott”

LOUDNESS

BUTTON

:

ott:

SPEAKER

BUTTON

:

“on”

Note

:

No-Input

@

No-Load

R758

R858

a.

O;

To

DC

Volt

Meter

7

To

DC

Voit

Meter

SVR701

(L-ch)

SVR

801

(R-ch)

MAIN

AMP

PCB

After

the

power

switch

is

turned

on,

adjust

SVR701

and

SVR801

respectively

as

follows.

L

—

Channel

:

SVR701

for

3mV+0.5mV

reading

beteen

the

both

leads

of

R758.

R

—

Channel

:

SVR801

for

3mV+0.5mV

reading

beteen

the

both

leads

of

R858.

EXPLODED

VIEW

__

PARTS

LIST

PARTS

LIST

PACKING

&

ACCESSORY

PHONO

AMP

C.

B.

ASS’'Y

GRAPHIC

EQUALIZER

AMP

P.

C.

B.

ASS'Y

MAIN

AMP

P.C.B.

ASS‘Y

141-4-250T-61671

|

P.C.B.

Ass’y,

Phono

Amp

141-6-133T-38

802

|

Individual

Carton

1

71

| )

1

76

141-4-250T-62102

|

P.C.B.

Ass’y,

Graphic

1

77

141-4-250T-62273

|

P.C.B.

Ass’y,

Main

Amp

PCB

1

141-6-144T-85000

|

Foam

Plastic

Case

2

4-240T-06900

|

Socket,

4p

RCA

1

Equalizer

Amp

P.C.B.

,

4-240T-11276

|

Socket,

9p

1

141-6-331T-11

600

|

Protector

Sheet

1

4-240T-07000

|

Socket,6p

RCA

1

Q709,809

Transistor

2SA1016

2

—

'1441-2-381T-04200

|

Bracket

Fuse

4

141-6-231T-35600

|

Inner

Polye

Cover

1

1C701

|

IC

LA6458SS

1

Q710,711,

Transistor

2SC2362

4

SVR701,801

4-222T-73573

|

Semi-Variabie

Resistor

1K

ohm

2

141-6-410T-81

802

|

Instruction

Manual

1

CAPACITORS

.

810,811

:

701,801

4-265T-07930

|

VHF

Coil

2

141-6-415T-32

300

|

Notic,

FTZ

1

C704

,804

Electrolytic

4.7uF

25V

2

Q706,806

Transistor

2SAGO8K

2

4-240T-11200

|

Socket,

3p

1

C713,813

Electrolytic

1uF

(Nonpolar)

50V,

2

Q701,702,

Transistor

2SC536

AUD

SP

5

Q714,814

Transistor

2SC3179

2

C710,711

Electrolytic

220uF

25V

2

703,704,

Q715,815

Transistor

2SA1262

2

C707

807

Electrolytic

22uF

10V

2

705

Q712,812

Transistor

2SC2274K

2

C708,808

Mylar

0.018uF

15%

SOV

|

2

Q801,802,

Transistor

2SC536

AUD

SP

5

Q713,813

Transistor

2SA984K

2

C709,899

Mylar

0.0047uF

+15%

SOV

|

2

803,804,

|

Q716,816

Transistor

2SD612

2

CABINET

C712,812

Mylar

0.0039uF

+10%

50V

|

2

305

|

0707,807

Diode

DS442

X

2

C706,806

Mylar

0.0015uF

#+10%

50V

2

Q707,708,

Transistor

2SA999

NF

4

D901

,902

Diode

DS135

D

4

1

141-0-122T-46500

|

Front

Panel

Ass’y

C705,805

Ceramic

220pF

+10%

50V

2

807,808

903

904

2

141-0-111T-54901

|

Cabinet

Ass’'y

C702,703,

Ceramic

0.01uF

+80—20%

3

D703,801,

Diode

DS442X

4

D906

Diode

DS135D

1

3

141-2-163T-91

900

|

Rotary

Knob

701

50V

802,803

4

141-2-163T-81

730

|

Rotary

Knob

C717,718

Ceramic

0.01yF

+10%

50V

2

D708

Zener

Diode

GZA15Y

1

CAPACITORS

7

5

141-2-164T-30700

|

Slide

Knob

C001

,002,

Ceramic

220pF

+10%

50V

6

;

.

C903,904

4-163T-10100

|

Electrolytic

3300ynF

35V

2

6

141-2-160T-09700

|

Push

Button

003,004,

CAPACITORS

C907

908

Electrolytic

220uF

35V

2

7

141-2-160T-16500

|

Push

Button,

Power

SW

005,006

C909

Electrolytic

220uF

16V

1

C906

Electrolytic

220uF

25V

1

8

141-2-174T-11200

|

Stand

RESISTORS

|

C733,833

Electrolytic

10QuF

16V

2

C739

839

Electrolytic

1uF

(Nonpolar)

504

2

All

Resi

eae

+5%

%W.

unl

C730,830

Electrolytic

10uF

16V

2

C902

4-2237-13771

|

Capacitor

0.022uF

+£20%

200V|

1

|

esistors

are

Carbon

|

-type

to

AW,

unless

C732,832

Electrolytic

4.7uF

25V

2

C738

,838

Mylar

0.047yF

+10%

50V|

2

otherwise

noted.

|

C721,821

Mylar

0.15uF

+10%

50V|

2

C910,911

Mylar

0.1uF

+20%

100V/

2

CHASSIS

R703,803

330

ohm

2

C723,823

Mylar

0.33uF

~

+10%

50V|

2

|

{C912

Ceramic

0.1uF

_+10%

50V|

1

|

R706,806

560

ohm

2

C725,825

Mylar

0.0082uF

+10%

50V|

2

|

|C735,835

Ceramic

47pF

+10%

50V}

2

441-2-311T-43800

|

Chassis

4

|

R707,

801

1.5K

ohm

2

C727

827

Mylar

0.0018uF

+10%

50V|

2

|

|C743,744,

Ceramic

2200F

+10%

50V|

4

141-2-125T-29600

|

Bottom

Lid

1

R705

,805

15K

ohm

2

C729,829

3

Mylar

470pF

+10%

50V|

2

843,844

|

141-2-126T-41302

|

Back

Lid

1

R702

802

47

ohm

2

C734,

834

Mylar

470pF

+10%

50V|

2

|

C903

Ceramic

0.1uF

+80—20%

50V/

1

141-2-310T-68400

|

Bracket,

Heat

Sink,

Right

1

R707

,807

100K

ohm

2

C737,837

Mylar

0.01uF

+10%

50V|

2

141-2-310T-68500

|

Bracket,

Heat

Sink,

Left

1

R704,804

270K

ohm

2

C731,831

Ceramic

220pF

+10%

50V!

2

RESISTORS

141-2-143T-92601

|

Marking

Plate

1

R700

10

ohm

1

C742,842

Ceramic

3pF

+10%

50V

2

Alli

Resistors

are

Carbon

T-type

5%,

“W

unless

141-2-329T-08700

|

Reflector

1

R001

,002,

1K

ohm

6

C913

Mylar.470pF

+10%

50V

|

1

otherwise

noted.

141-2-464T-14400

|

Fixer,

AC

Cord

1

003,004,

RESISTORS

R758,759,

Metal

0.33

ohm

P-type

1W

4

141-2-310T-69700

|

Bracket

1

005,006

All

Resistors

are

Carbon

T-type

+5%

%W,

unless

858,859

,

141-2-135T-86702

|

Cover

1

otherwise

noted.

R760

860

FP-Carbon

5.6

ohm

P-type

AW

2

141-2-464T-40500

|

Fixer

1

FUNCTION

SWITCH

P.

C.

B.

ASS‘Y

R752

,852

FP-Carbon

390

ohm

P-type

2

R901

FP-Carbon

1

ohm

P-type

1

141-2-464T-29900

|

Fixer

1

R908

FP-Carbon

4.7K

ohm

P-type

1

R757,857

FP-Carbon

82

ohm

P-type

2

141-2-421T-28800

|

Special

Screw

1

141-4-250T-61771

|

P.C.B.

Ass’y,

Function

Switch

1

R749

849

15K

ohm

2

R762,763

FP-Carbon

33

ohm

P-type

2

141-2-464T-20600

|

Fixer

|

5

4-238T-56000

|

Rotary

Switch

1

'R742,842

330K

ohm

2

R906

Metal

82

ohm

P-type

1W

1

141-2-453T-01701

|

Washer

3

x

10x

Imm

1

R725,726,

150K

ohm

5

R909

Metal

100

ohm

P-type

2W

1

727,728,

R748

848

56K

ohm

2

729

R764

864

100K

ohm

2

SWITCH

P.

C. B.

ASS‘Y

R825

826,

150K

ohm

5

R903,904

2.2K

ohm

2

EIXING

PARTS

:

reg

ee

ae

re

827,828

R775

,875

1.5K

ohm

2

:

—_—

73

141-4-250T-61871

|

P.C.B.

Ass’y,

Switch

1

829

R774

874

3.9K

ohm

2

Y

1

Pan

Hd.

Screw

2

x

4mm

7

$5,6,7

4-238T-56100.

|

Push

Switch

1

R720,721,

56K

ohm

5

R865

3.3K

ohm

1

Y

2

Pan.

Hd:

Tapping

Screw

8

722,723,

R907

Metal

330

ohm

P-type

2W

1

W/Washer

3

x

6mm

CAPACITORS

724

R902,905

FP-Carbon

1.5K

ohm

P-type

2

Y

3

Pan.

Hd.

Tapping

Screw

2

C716,816

Mylar

0.056uF

+10%

50V

|

2

R820,821,

_

56K

ohm

:

5

R761,861

FP-Carbon

10

ohm

P-type

“%W

2

W/Washer

3

x

8mm

C714,814

Mylar

0.0068uF

+10%

50V

2

822,823,

Y

4

Pan.

Hd.

Tapping

Screw

4

C715,815

Ceramic

150pF

410%

50V

,

2

824

;

ee

eon

R730,731,

15K

ohm

5

|

|SPEAKER

SWITCH

P.

C.

B.

ASS’Y

Y

5

Binding

Hd.

Screw

3

x

6mm

8

RESISTORS

732,733,

Y6

Binding

Hd.

Screw

3

x

8mm

6

R710,711,

1M

ohm

4

734

141-4-250T-62373

|

P.C.B.

Ass'y,

Speaker

Switch

Y

7

Binding

Hd.

Tapping

Screw

10

810,811

R830,831,

|

15K

ohm

5

4-238T-49700

|

Switch

3

x

6mm

R712,812

10K

ohm

2

832,833,

Y8

Binding

Hd.

Tapping

Screw

9

R709

809

3.3K

ohm

834

3

x

8mm

R744,745,

10K

ohm

Y9

Binding

Hd.

Tapping

Screw

4

|

844,845

HEADPHONE

P.

C.

B.

ASS‘Y

3

x

10mm

R735,736,

1K

ohm

Y10

Binding

Hd.

Tapping

Screw

6

VOLUME

P.

C.

B.

ASS‘Y

737,738,

141-4-250T-62402

|

P.C.B.

Ass’y,

Headphone

3

x

12mm

=

739

4-240T-29971

Y11

Binding

Hd.

Tapping

Screw

4

74

141-4-250T-61971

|

P.C.B.

Ass’y,

Volume

R835

836,

1K

ohm

FP-Carbon

270

ohm

P-type

“ZW

4x

8mm

VR701,801

4-220T-03400

|

Variable

Resistors

837,838,

|

Y12

Spring

Washer

3

x

10

x

1t

| |

839

Y13

External

Tooth

Lock

Washer

R746,846

1.5K

ohm

2.

:

3x

6.5t

x

0.45t

R747

,847

330

ohm

2

AC

POWER

SWITCH

P.

C.

B.

ASS’Y

GRAPHIC

EQUALIZER

CONTROL

P.

C.

B.

ASS’Y

R750,751,

27

ohm

4

—_—_—___——-

850,851

141-4-250T-62573

|

P.C.B.

Ass’y,

AC

Power

Switch

ELECTRICAL

PARTS

“175

141-4-250T-62071

|

P.C.B.

Ass’y,

Graphic

Equalizer

R733,873

270K

ohm

2

4-238T-30100

|

Switch,

Power

heeneees

Control

R743

843

3.3K

ohm

2

4-223T-12100

|

Capacitor

0.01pF

400V

51

4-300T-GO600

|

Power

Transformer

VR703,704,

4-220T-03500

|

Variable

Resistor

R741,

5.6K

ohm

1

141-4-381T-04200

705,706,707

CAPACITORS

4-243T-84971

|

Power

Cord

141-2-368T-26100

|

Heat

Sink

4-240T-16571

|

Socket,

TUNER

AC

4-234T-10583

|

Fuse,

T800mA

250V

(F901)

4-234T-10588

|

Fuse,

T2.0A

250V

(F701,801)

141-2-243T-09800

|

Base

441-2-327T-26100

|

Insulator

Electrolytic

1uF

50V

Electrolytic

0.33uF

50V

Mylar

0.082uF

+10%

SOV

Mylar

0.022uF

+10%

50V

Mylar

0.0047uF

+10%

50V

C720,820

C722,822

C724,824

C726,826

C728

828

ODN

3

aaa

NNNNN

SCHEMATIC

DIAGRAM

|

PHONO

AMP

PCB.

10701

(112)

a

|

MAIN

AMP

PCB.

|

POWER

SWITCH

PCB,

A

1GS0¥

:

|

a

ee

F901

|

SWITCH

VOLUME

oth

3

Lae

ae

shi

|

jPce.

O18

re

220V

&110V—

ae

;

i

,

°

001

/40V

abel

0.0068

|

220.u/

25V

C711

4

a

-

ReOKCX2

|

’

1

t

R806

(NP)

a

IC

701(2/2)

ROO4

1K

LA6458SS

PCB.

}

weer

ROO3

IK

me

Pe

a

O

Ww)

ROO1

1K

C001

220P

LAMP

PCB.

|

}

0906

DS135D

2

R906

82

(1W)

C906

|

22040/

25V

330

(2W)

LED

METER

PCB.

10702

tae

ele

iG

2V

15.4V

O~

‘a

[

HEADPHONE

PCB.

|

L.

90059

S1----POWER

SW

(ON)

$2----SP

SW(ON)

R857

C835

S4

++

FUNCTION

SW

SVR801

R002

1K

—_C002_220P*

IK

t)

(4)

&)

&®

gs

R766

2

ROOG

1K

C006

220P

220

(1/2W)

:

R866

|

ROOS

1K

COOS

220P

SLP251B

x5

GRAPHIC

EQULIZER

&

AMP

PCB.

C730

tow

SSASGSEL

See

eet

SPEAKER

|

TERMINAL

Pe

dd

PCB

Q701~

705

ek

K

)Q712

1

2SC536G

SP

1

Y

@

4

1

Q701

:

Q703

Q704

‘se

fe

;

:

>

wn

~

0,33

§

=e

C007

pL

°

3

A

§

3

(1W)

00056

#

)

<a

.

t)

.

4

vi

|

270K

Q711

ames

9

=

sare

5

TT

F

c727

|

5

C729

|

pots

ONO

lasv

Grav

atl

aw

<

Aope

.

=

Toooe!

“|

|

Tooow

|

“|

|

Tap

ar

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PARTS

LIST

LAMP

P.

C.

B.

ASS’Y

141-4-250T

62673

|

P.C.B.

Ass’y,

Lamp

4612T-17400

|

Lamp

12V,

100mA

SPEAKER

TERMINAL

P.

C.

B.

ASS’Y

141-4-250T-62773

|

P.C.B.

Ass’

y,

Speaker

Terminal

4.237T-1107%3

|

Terminal

Board

Mylar

0.0056uF

+10%

50V

IC

BLOCK

DIAGRAM

-

LA

6458S

(Dual

Operation

Amplifier)

BA6124

(LED

Level

Meter)

vec

C007

,008

009,

(010

LED

METER

P.C.

8B.

ASS’Y

141-4-250T-64571

|

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Ass’y,

LED

Meter

IC

LB1403

oe

IC

BA6124

LED

SLP251B

Green

Electrolytic

10uF

16V

Carbon

10K

ohm

T-type

%W

BALANCE

P.

C.

B.

ASS'Y

141-4-250T-64671|

P.C.B.

Ass’y,

Balance

4-220T-03600

|

Variable

Resistor

Carbon

1K

ohm

T-type

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Carbon

1K

ohm

P-type

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a

a a

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Vcc

SANYO

ELECTRIC

TRADING

CO.,

LTD.

33,-Hiyoshi-cho

2-chome,

Moriguchi-shi,

Osaka-fu,

570

Japan.

-8-

a

|

mea:

ee

Aug./’82/2000

KM

Printed

in

Japan.

Sanyo JA 300 Manuale utente

Manuali Amplificatore popolari di altre marche