Sanyo JA 20 Manuale utente

SERVICE

MANUAL

@SANYO

STEREO

AMPLIFIER

(EUROPE)

ШИНЕ

NOTE:

SPECIFICATIONS

The

below

mentioned

specifications

are

mainly

based

the

IHF

measurements

standard.

They

can

therefore

not

directly

compared

with

specifications

based

the

DIN

standard

other

standards.

Continuous

output

power

...........

(at

ohms,

distortion)

Total

harmonic

distortion

...........

0.1%

(16

output,

ohms)

Input

sensitivity

and

impedance

PHONG

1.1.1...

2.5

mV/47

kohms

AUX/TUNER/TAPEPLAY

........

150

mV/47

kohms

Phono

overload

level

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

120

RMS

(at

kHz)

Output

level

pai

jan

.........

150

Frequency

тео

GG.

—

kHz

(AUX)

Tone

control

response

BASS

(at

100

Hz)

TREBEE2

eee

、。。。、.

(at

kHz)

High

filter

respone

KAN...

kHz

(—6

dB/oct.)

Loudness

control

response

(Vol.

—30

dB)

100

Hz/10

ketenes.

....

dB/+4

Signal

noise

таве

ЕЕ...

Power

requirements

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

AC:

220

Power

consumption

TM...

output

socket

ШШ

5...

AC:

300

(max.)

Dimensions

(Approx)

TET

E...

380

(W)

180

(D)

(H)

шы

жч,

ЧА

(15-3/16"

7-1/8"

3-1/2")

Weight

(Approx)

ass

ere

sc.

3.6

Ibs.

ozs.)

Specifications

subject

change

without

notice.

WM-6567

FRONT

PANEL

DISASSEMBLY

FITTING

LED

METER

PCB

ASS'Y

ADJUSTMENT

BIAS

CONDITIONS

ADJUSTMENT

PEAK

LEVEL

METER

CONDITIONS

VOLUME

CONTROL:

“0”

(Minimum)

BALANCE

CONTROL

VOLUME:

(Center)

BASS

CONTROL

VOLUME:

“0”

(Center)

TREBLE

CONTROL

VOLUME:

“0”

(Center)

FUNCTION

SWITCH:

TUNER

MONITOR

SWITCH:

SOURCE

HIGH

FILTER

SWITCH:

OFF

LOUDNESS

SWITCH:

OFF

OUTPUT

LOAD:

LOAD

After

the

power

switch

turned

on,

adjust

SVR703

and

SVR803

respectively

follows:

—

channel:

SVR703

for

3mV

reading

between

the

both

leads

R734.

—

channel:

R803

for

3mV

reading

between

the

both

leads

R834.

TEST

OSCILLATOR

(OSCILLATOR

ATTENUATOR)

INPUT

SIGNAL:

1kHz,

46mV

OUTPUT

LOAD:

8Q,

100W,

non-inductive

resistance

VOLUME

CONTROL:

"10"

(Maximum)

(1)

Introduce

test

oscillator

signal

the

TUNER

terminal.

(2)

Adjust

test

oscillator

signal

that

LED

“3”

the

right

side

peak

level

meter

begins

light.

(The

output

voltage

the

right

side

becomes

about

3.5V

this

time.)

Next,

check

that

the

output

voltage

left

speaker

same

the

right

side.

Adjust

with

SVR762

that

LED

“3”

peak

level

meter

begins

light.

—

OSCILLOSCOPE

OUTPUT

(SP)

„©

DIGITAL

VOLT

METER

(DC)

H-

R734

R834

703

SVR803

raw.

Y10-©

jih

Мр

PHONO

C701

БК

47u/25V

R702

ens

sli

(CQ

R801

C801

C921

C922

.01

psi

R704

330

|C704

22u/10V

R804

Q721

722.821.822

2SA1016G

0724.824

2SA999F

Q723.823

2SA999F

Q725.825

2SC536KF

DS442X

428(

с)

一

S3-1

сч

chil

R724

560

+27.3V

C924

0.047

С721

R721

1u/50V

ncz^725»v

R903

2.2K

220u125V

R904

2.2K

-wv|

C905

220u/25V

L...

51.

S2...

ЭЗ...

S4....

SS...

ITCHES

...FUNCTION

SWITCH

.MONITOR

SWITCH

.HIGH

FILTER

SWITCH

LOUDNESS

SWITCH

.POWER

SWITCH

MAIN

(

TUNER

PHONO

AUX

)

(SOURCE

TAPE

)

(

TUNER

OUT~

18V

300mA

CONTROLS

BALANCE

CONTROL

VR702.

802

...

VOLUME

CONTROL

VR704.

804

...BASS

CONTROL

VR705,

805

...TREBLE

CONTROL

9726.826

2SC2235Y

Q728.828

2SD313D

9727.827

2SA965Y

9729.829

25B507D

9911

Q728

FUSE

701

T2.0A

73V

D761—765

R761

R763

10K

R735

5.6(1/2W)

C728

0.047

SVR762

10K

(12

S|R912

É)

ape

jaka

Jajah

Q82

R766

“7

416v

330

D764

(1)

349

PLI

чл!”

R767

330

D765

C907

1u/50V

R908

330

R862

47K

со

R861

Ф)

ЫС

gaya

cpm

= =

аб.

20.

16V

he)

866

1С861

£28

+16V

NGGE

—

D861

9548

(7)

nce

е -

16V

EFT

DNE

(9)

ETE.

TENDER

220072W)

SPEAKERS

РНОМЕ5

epee

Tol]

PEAK

LEVEL

METER

used

nis

——

145°C

FUSE

901

T630mA

YELLOW

PHONO

TUNER

AUK

—

LEFT

——RIGHT

PHONES

IC701...TA7558

Q728,

828....25D3130

Q729,

829....25B507

a829

a828

Q728

D824

Q827

0825

—+-

Q826

0826

——@

,—

R733

R834

—

SVR803

a825

0822

R831

9823

C925

|“

gin

—

R827t4p—

R826

——

о»

T+

R822

C821

"MUT

C924

ORE,

ХЕ

E925

0971

gagy

“Tenan

PNE

eer

———

i910;

R743

Bn».

LES

Sos

MES

10146

ant

ftf

eJ.

lotos

SAE

cag

[jd

го

ficia

let

-—

Igi

вет

ет

"attt

io!

|19!

Laga

ves

АШ

tadi

edj

101

Ноо

-a

R814

R811

10761,

861......BA6124

R763

se,

r9-8-7-6-5-4-3-2-1,

———

9985295555

1C761

pond

|076

0721,

821

0726,

826.....2SC

2235

9€]

0763

0722.

822

2541016

0727,

827...

25А965

(€)

0765

0723,

823

0761

0724,

825....25А999

0725,

825...

25С536

SPEAKERS

TUNER

RIGHT

LEFT

OUT

18У

300mA

—

一

PHONES

со

BLUE

T901

50Hz

SWITCHES

Sie

FUNCTION

SWITCH

Ponce

tert

MONITOR

SWITCH

Som

HIGH

FILTER

SWITCH

S4............,

LOUDNESS

SWITCH

55............

POWER

SWITCH

CONTROLS

VR701...........BALANCE

CONTROL

VR702,

CONTROL

VR704,

804...

CONTROL

VR705,

805.......

CONTROL

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