Onkyo A-7022 Manuale utente

SERIAL

NO.

3006

ONKYO

SERVICE

MANUAL

OLID

STATE

STEREO

PRE

MAIN

AMPLIFIER

model

A-7022

UDO

COMPOREN

SPECIFICATIONS

Main

Amplifier

Section

Power

Output

Dynamic

200W

(THF

42)

150W

(IHF

8Q)

72W

+72W

(4Q

both

channel

driven}

65W

/65W

(8Q

each

channel

driven)

52W

(8Q

both

channel

driven)

Continuous

Total

Harmonic

Distortion

0.1%

Rated

Output

0.03%,

1OW

Output

Inter

Modulation

Distortion

0.05%

Rated

Output

Power

Bandwidth

10-100,

000Hz(-3dB

THD

0.2%)

Signal

Noise

Ratio

110dB(IHF

NETWORK)

Damping

Factor

Rated

Input

and

Impedance

1V/100kQ

Load

Impedance

4-16Q

Pre

Amplifier

Section

{

PHONO-1/~2:1.

2/2.

4/4.

8mV

(50kQ)|

Inputs

TUNER,

AUX,

TAPE

PLAY:

Input

Sensitivity

100mV

(100k)

Total

Harmonic

Distortion

0.03%at

Rated

Output

Intermodulation

Distortion

0.05%

Rated

Output

Outputs

RIAA

Deviation

Phono

Overload

+0.

5dB

(30-15,

000Hz

)

300mV

RMS

1kHz,1.4V

RMS

10kHz

PHONO

-1/-2:75dB(THF

NETWORK)

TUNER/AUX:90dB(IHF

NETWORK)

Signal

Noise

Ratio

Features

Output

Voltage

Tone

Control]

with

2dB/step

Switch

and

Frequency

Shift

type

BASS

:400/125Hz

TREBLE:

2k/8kHz

Frequency

Shift

Bass

Control

Treble

Control

steps

Boost

and

Cut

steps

Boost

and

Cut

Filter

HIGH

8kHz(6dB

/oct.

)

LOW

30Hz

(6dB

oct.

)

Muting

~20dB

Power

Supply

Rating

Loudness

+5dB

70Hz,

+5dB

10kHz

Semiconductors

Controls

POWER

SPEAKERS

(OFF,

A, B,

A+B)

SELECTOR(

AUX,

TUNER,

PHONO

MIC)

Weight

TAPE

MONITOR(PRINT

1-2,

TAPE-1,

SOURCE,

TAPE-2,

2-1)

Dimensions

MODE(REV,

NORM,

R+L,

VOLUME/BALANCE

TREBLE

BASS

FREQUENCY

SHIFT

SWITCH

BASS

(400Hz,

125Hz)

TREBLE(2kHz,

8kHz!

MUTING

LOUDNESS

FILTER

HIGH

LOW

PHONO

SENSITIVITY

(1.2/2.

4/4. 8mV)

PRE

MAIN

SEPARABLE

SWITCH(UNITE-SEPARATE)

PHONO-1,

PHONO-2,

TUNER,

AUX,

MIC

L/R

TAPE

PLAY-1,

TAPE

PLAY-2,

MAIN

SPEAKER-A,

SPEAKER-B

TAPE

REC-1,

TAPE

REC-2

PRE

OUT

OUTLET

UNS

WITCHED,

SWITCHED

PHONES

Phono

inputs

Tape

Monitor

and

Printing

2dB

Step

Tone

Controller

Choice

Turn

over

Frequency

ASO

type

protection

circuit

Transient

Killer

circuit

Main

Amplifier

incorporating

OCL

circuit

MIC

input

Big

Phono

Overload

110/120/220/240V

50/60Hz

Transistors,

Diodes,

Thermistors

5/8°W

53/8"H

3/4"D

423mm

136mm

373mm

10.5kgr,

23lbs

COMPONENT

LOCATIONS

DESCRIPTION DESCRIPTION

Amp

Box

assembly

Soft

Block

Front

Fiber

Board

Front

Cover

Eind

Cap

Flat

Screw(3S

+5F)

Joiner

Pan

head

Screw(3P+8F)

Knob—Push

Switch

Binder

Screw(3+6)

Knob—

Tone

Front

Panel

Facet

Knob—

Volume

Knob

—Balance

Knob

Sheet

Knob—

Selector

Rubber

Cushion

Tapping

Screw(4+12)

Bottom

Cover

Chassis

Toothed

Lock

Washer

Truss

Screw(4+20)

Soft

Block

Knob

Guide

Knob

—

Tape

Facet

Ring

Concave

Washer

Knob

—

Speaker

ADJUSTMENT

THE

IDLING

CURRENT

[40.5

cos

Ray

220/63

R329

0301

R328

aio

~----,

Reh.

Q305

(21)

—

0327

;

KS)

Q311.0"

0.047

+13

kK)

ty?

]

O71

10P/500

100

rat

R319

—N,

22K

Rad7

(1/2

R367

TRL

($23,

R369

(17

33725

yenmoss

Gum

jeouT

£50my

R307

0.047

680

R321

L301

1apH

#313

339

R309

100

mov)

‘@

Q005

6.067

0309

Scar

Yas

(i)

W2-210

‘sp.

R323

R369

0307

ax4

\-24V

4.7K

ELK

S471

(172)

1472)

[~4.3¥]

30P

IN6O

R339

5329

R371

333

22k

D311

R325

D305

wv?)

(172)

1001

680

191555

1K)

“8

ool

(nau

7470/50

Rech

LoL

ORO

Instrument

required

Ammeter

50mA

100mA.

Voltmeter

50mV

VTVM.

When

replacing

the

POWER

transistor

(Q003,

Q004,

Q005,

Q006)

the

DRIVER

transistor

(Q311,

Q312,

Q313,

Q314),

check

the

idling

current

the

POWER

transistor.

adjust

normal

value

(40+5)mA,

proceed

follows.

(Leh)

(1)

Cut

the

connection

between

and

collector

Q003

MAIN

Amp

assembly,

and

connect

Ammeter.

(2)

Adjust

the

current

(40+5)mA,

with

R319(2.2kQ)

after

switching

for

minutes.

(3)

After

adjusting,

connect

original

wiring.

Voltmeter

(50mV)

VIVM

available,

connect

the

Voltmeter

betweenE]

and

terminals.

Adjust

the

voltage

(20+2.5)mV

with

R319(2.2kQ).

(Rech)

Using

R320(2.2kQ),

adjust

the

same

manner

indicated

above.

Note:

Volume—Minimum.

Open

Load.

PARTS

LIST

DESCRIPTION

SPECIFICATION

|Q’TY|

STOCK

NO.

Equalizer

Amp

ass’y

NAEQ-206

12939506

Tone

Amp

ass’y

NATC-186b

12939586B

Main

Amp

ass’y

NAMA~187a

12939587A

Power

Supply

ass’y

NAFI-207

12939507

Protector

ass’y

NAPC-208

12939508

Transistor

25C945(P)

2210353

ZSD¢27

D218(M

2200042

2200142

25899

PARTS

NO.

DESCRIPTION

SPECIFICATION

(QTY

STOCK

NO.

PL0O1

Pilot

Lamp

6.3V0.15A

210003

T001

Transformer-Power

NPT-552ADGQ

230056

ore

Capacitor-Electrolytic

CE62W50V8200uF

3504035A

CE04W50V33uF

325783301A

C305,

306

Capacitor-SP

SP04C25V2.

2uF

392250229

cea8

SP04C25V10uF

Volume

RO15

Variable

Resistor

N24RDGSOOKMN250KB2T

5104006

Balance

S001

witch-Rotaly

NRS-385-20Y

250165-1

Selector

S003

NRS~465-15Y

350175-2

Tape

Monitor

S004

NRS-125-15Y

250180-1

Mode

S008,

S009

”

NRS-2211-20Yb

250117

Tone

S013

NRS-124-20Y

250118-1

Speakers

S002

Switch-Slide

NSS-2323

250121

Phono

Sens

S012

NSS-4224

250122

Pre

Main

$005,010

Switch—Lever

NLS-122-29S

2501191

Mvtng

adness

S006,

007

NLS~-142-29S

L 2

250120-1

Frequency

Shift

S01

witch-Power

NPS111LA2

250157

S015

Klixon

9700L-26-11

252009

S016

9700L-21-11

252011

Jack-Stereo

Head

Phone

3P64M

250126

Jack-Microphone

HJ-631S-H-3

250176~1

F001

Fuse

1.5A-T

252015

F002

2A-T

252002

Amp

Box

ass’y

280762

Front

Panel

280759

End

Cap

280367

Facet

280556

Joiner

280376

Knob-Tone

283085

Knob-Selector

283086

Knob-Volume

283087

Knob-Balance

283088

Knob-S

peaker

283096

Knob-Tape

ass'y

283103

Knob-Power

283071

Bottom

Cover

270295

Rubber

Cushion

280379

Master

Carton

Box

290378

Side

Pad

290203-1

NATC-186b

Q201~

Q204'

Transistor

—

A493(GR)

2210235

Q205,

Q206

”

25C1000(0-1)

2210280

Q207,

Q208

25C733(GR)

2210085

Q209

2SC734(0-1)

2210060

D201,

D203

Silicon

Diode

1S1554

223106

C201,C202

Capacitor-Electrolytic

CE04W

25V0.

47uF

352754791A

C205,

C206

CE04W6.

3V100uF

352721011A

C203,

C204

CE04W35V220uF

352762211A

C229

C232

SP04C25V2.2uF(M)

3500023

Capacitor-SP

Relay

PARTS

NO.

DESCRIPTION

SPECIFICATION

(Q’TY|

STOCK

NO.

C233~

C234]

Capacitor-SNP

SNP04C25V22uF(M)

3500027

2.2uF(M)

3500025

NAMA-187a

Q301~

Q304|

Transistor

25C€1000(0-1)

2210280

313

Q314

”

A706(52)

2200032

Q307,

Q308

2SC735(GR)

2210245

Q309,

Q310

A562(GR)

2»

2210255

Q311,

Q312

25C1124(2)

2200016

Paes,

Dane

Silicon

Diode

1$1555

223105

D311

10D1

223801

Dag”

Daog

Germanium

Diode

1N60(N)FM

2231031

D309

Zener

Diode

Z-210

223921

1.301,

L302

Coil-Load

Compensation

S-1.

231001

C309,

C310

Capacitor-Electrolytic

CE04W

3V220uF

352722211A

C341

50V470uF

352784711A

R319,

R320

Resistor-Semi

Fixed

R-HK2.

2KB

5225005

TH301,

TH302

Thermistor

D-22A

4000003

NAEQ-206

Q101,

Q102

Transistor

2SA493(GR)

2210235

Q103,

Q104

2SC1000(0-1)

2210280

Q105,

Q106

2SC1124(3)

2200101

D101,

D102

Silicon

Diode

181555

223105

Capacitor—Electrolytic

CE04W

16V47uF

352744701A

”

6,3V220uF

352722211A

" »

25V100uF

352751011A

C101,

C102

Capacitor-SP

SP04C25V2.

2uF

3500023

C125,

C126

10uF

}

3500024

NAFI-207

Q401,Q407

Transistor

25D234(0)

2200113

Q403—

2SA561(0)

2210073

Q405

”

25C945(P)

2210353

D403

Silicon

Diode

10DC2R

223813

D405

10D1

223801

D401

Zener

Diode

WZ-270

223922

NAPC-208

Q501.

Transistor

25C945(P)

200353

Q503

2$C945(Q)

2210354

Q505

2SD235

2200013

Q507,

Q509

C634A

(70)

2210187

Dae’

Deis

Silicon

Diode

10D1

223801

D523)

D525

SR3AM-6B

223815

Des.

Deon

Germanum

Diode

1N60(N)FM

2231031

D513

Zener

Diode

BZ-120

223918

C501

Capacitor-Electrolytic

CE04W25V1uF

392750101A

C503

16V100uF

352741011A

C505

y ”

—

1000uF

352741021A

C513,

C515

CE04W50V

47uF

302784701A

C521,

C523

25V220uF

392752211A

S501

NRSP5A-DC12

250166

PACKING

PROCEDURE

Tighten

SPEAKER

terminals

hand.

Clean

AMP

BOX

assembly,

attending

your

fingerprints.

Set

SENSITIVITY

SWITCH

center

(2.

4mV).

Clean

REAR

PANEL

and

RADIATOR.

Insert

SHORTED

into

PHONO

—

1,2

terminals.

Wrap

POWER

CORD

with

CORD

WRAPPER

and

bind

with

rubber

band.

Wrap

unit

with

AMP

COVER

and

attach

SIDE

PAD

both

sides.

Put

CARTON

BOX

and

make

sure

the

front

marks

the

carton

matches

the

unit

front.

Put

ACCESSORY

BAG

including

INSTRUCTION

BOOKLET,

WARRANTY

CARD

ete.

the

box.

10.

the

CARTON

BOX

and

seal.

AMP

BOX

ASSEMBLY

pega

«|

©)

(AON

eicledeicte

REAR

PANEL

iSssss

SPEAKER

WSS

TERMINAL

ern

VOLT

CAUTION

TAG

WRAPPE

LABEL

TRANSIENT

KILLER

TAG

SIDE

PAD

S007

LOW

FREQUENCY

SHIFT

125Hz.

400Hz

(400Hz)

$008

TREBLE

$10,

-8.-6.-4.+2.

FLAT.

«2.

24..6.+8.

«10

(FLAT)

S009

BASS

=10.-8

-6.-4.~+2,

FLAT

«2.64.

+658.

+10

(FLAT)

$010

LOW

FILTER

OFF.

ON.

$011

HIGH

FILTER

OFF.

ON.

(OFF

$012.

PRE-MAIN

UNITE.

SEPARATE.

(UNITE)

$013.

SPEAKERS

OFF.

A+B.

(A)

$014

POWER

OFF.

ON.

(OFF)

$017.

LOUDNESS

OFF.

ON.

(OFF)

Qidt

284493(GR)

Q103

25C€1000

(0-2)

Q105

2501124

(3)

Q201.0203

25A493(GR)

Q205

25C

1000

(0-1)

Q207.G208

25C733(GR)

Q209

28€

734

(0-1)

Q301.

4303

28C

1000

(0-1)

Q305

254706(52)

Q307

2SC

735

(GR)

Q309

2SA562

(GR)

Q311

28C€1124(2)

Q313

284706

(52)

Q401

280234(0)

Q403

2S4561

(0)

405

2S8C945(P)

Q407

280234

(0)

Q501

2SC945(P)

deer

osoo

fseeae

ool

decane

aoo1

2SC945(P

Q003

2$0218(M)

Q005

yitit

VOLTAGE

((—¥1)

MEASURED

WITH

VTVM

CHASIS

SIGNAL

INPUT.

ALL

RESISTORS

ARE

OHMS.

VGWATT

UNLESS

OTHERWISE

NOTED.

ALL

CAPACITORS

ARE

UNLESS

OTHERWISE

NOTED.

ELECTROLYTIC

CAPACITORS

(—-#R—)

ARE

pF/Wy.

NAEQ-206

PHONO

-1

Sees

coot

0047

PHONO

-2

(Q-¢———-—___—

'poos

GNO

TUNER

AUX

TAPE

-1

PLAY

SELECTOR

AUX.

TUNER.

PHONO-1.

PHONO-2.

MIC.(PHONO-1)

PHONO

SENS

1.2mV.

2amV.

48mV.(2.4mvV)

TAPE

MONITOR

12.

TAPE-1.

SOURCE.

TAPE-2.

2-~1.(SOURCE)

MODE

REV.

STEREO.

L+R.

(STEREO)

MUTING

-20dB.

(0)

HIGH

FREQUENCY

SHIFT

2KHz.

8KHz.

(2KHz)

REC

S003

=3:fi

aed

cis

cng

00036)

O01

S064:

coi?

cos

O15

BASS-

UNIT

R179

150K

NATC-

186b

err

R203

150K

Q201

-IN

R021

15M

zor

SOIT

Gen”

Lal

RO87

Rot

aoc!

$005

RoIS0

R017

SOOKMN

18K

—

nOwSe

7508

BALANCE

VOLUME

R601

3312)

wOOC2R

lah

Qi2/25

aoe

R201

‘he

33K

;

Fear

C225

O01)

"as

ral

A211

0047

R215

C209

2.2K

R217

aoee

@207

Digan

tour

or--7

gov)

181554

pomar®

©)

PRE

-OUT

RO3)

15M

ton

SOT

5012

©)

MAIN-

coo?

8200750

her

coos

8700/50

einen

(

‘

030)

428

181555

18)

C315

3307

151555

SPEAKER

-A

’

SPEAKER-

S016

THERMO

SWITCH

$013

aie

abo

rx)

Rech

Tar

Ren

390(2K)

0517

10D1

ADPHONE

LINE

VOLTAGE

AND

FUSE

The

model

A—7022

operates

one

the

four

line

voltages,

110V,

120V,

220V,

and

240V.

Set

the

unit

the

proper

line

voltage

following

the

procedure

described

below.

CHANGING

LINE

VOLTAGE

SETTING

AND

FUSE

Turn

the

voltage

selector

that

the

proper

line

voltage

marking

can

seen

through

the

slot

the

rear

panel.

Whenever

the

position

the

selector

changed,

check

the

rating

the

fuse.

fuse

used

for

either

220V

240V

operation

and

fuse

for

110V

120V

operation.

25h

(dow

—_

oeanas

(uP)

“

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