Technics SU-8022 Service Manual

U-S022!X

ORDER!.NfY:SD7902-1!i·-

,

• CHANGE

OF

Notes:

PARTS

LIST

(0), (OG), (XGH), (XE), (XSW) ,(EB)

This

parts

list

included

only

the

change

of

the

model

SU-8022

Change

of

Ref.!

No-l

1 I S8NS13

I

2 , SBN815

i

SGWUS022D

3

i

4

SBD21

,

SHR5037

5

i

I

SHR5043

6

!

9 S8C211

I

13

S8C209

I

SGP1790A

!

SGPUS022D

i

I

20

i

SGPUB022L

!

I

SGPUB022W

I SGP1790-1A

I

RJA23ZC [D, XGH, XGF, : RJA23ZC [D, DG,

,

23

I

RJA45ZC SJAll1 QFC1207M

i

SU-8022

[XE, XGF, DG,

EB,DG,XSWI

XGH,

[X,

i SHR127

24 i SHR129

I SKA 10676

25

I SKAU8022E

~

I XTB4+8FFN

XTB3+8BFN XTB3+SFFZ I Screw, Cabinet M'tg

~i

:

SPS2177

P2

SPS2177-1

1

l

SPS2179

P3 I SPS2179-1

SPG2077 [01 SPG2079

I

[XE,XGH,EB,DG.XSWI

!

SPG20Bl

P5

i

[xEI

[XE,

[XALI

[xALI

[X,

I SPG2083

I

SPG20B7 SQF10199 [D, XGH,

XGF, EB, DG,

1

P6

SQF10201

[XE,

X,

XA,

are available in

available in

available

United

in

Belgium

Notes:

I

ID)

(XGH)

(XE)

(XSW) (EB)

and

lOG)

is

available in is

is

available in

Part No.

..

,

SU-8022K

CABINET

S8NS33 S8NS35 SGWU8022KD S8D21-1

and

CHASSIS

! SHR5037-1 1 Spacer, Loudness

SHR5043-1

i

S8C211-1

I

I S8C209-1

[01

I

I SGP17908

E81

[xALI

SGPUB022KD [DG, XGH,

[XSWI

XAI

I SGPU8022KW

[X

El I

XAI

i RJA45ZC

[xALI

I

I SHR127 !

;

[0,

DG, XGH, E8,

only i SHR129

SKA10677[D.

xswl

SKAU8022KE

SCREWS

XTB4+SFFZ

SPS2177

only

i SPS2179

only

PACKING

[01

E8,XEI

[xSWI

E8,

XGH,XSWI

[XEI

xswl

IXEl

DG,XGH,EBiI

[XSW, XEI ! Cabinet IBlack)

and

WASHERS

PARTS

I

XAI

I SPG20S5

[xALI [XGFI

!

I SQF10199

xswl 1 [0,

XALI

Holland

Switzerland

I SQF10201

I

Scandinavia

only.

Kingdom

only.

DG, XGH, EB,

and

European

only.

xswl

[XEI

i

!

[,nstructions Book, Printed Matter

only.

parts

list_

I

Part Name & Description

i

PARTS

I Knob. Volume Control I Knob,

Bass,

I

Input

i Panel, Front Ass'y 18lack)

I Knob, Loudness,

I

MOnitor

!

Spacer

I Switch ,Button,

I Filter

!

Button.

i

I

Rear

I

i

Rear

I

Name

I.Rear Panel, SGP17908

Name

I

AC

,

AC

8ushing,

:

Bushing,

Cabinet IBlack)

I Screw, Cabinet M'tg

I

Pad,

i

Pad,

Carton

Instructions

Treble, Balance &

Selector

Switch

Rec

Switch

Rec

Mode,

High Filter, Subsonic

and

Speaker Switch

Power

Switch

Panel Panel, SGP17908

Plate ISGT20150)

Plate ISGT2061

Cord,

with

Plug

Cord

AC

Cord

AC

Cord

Left Side

Right

Side

Box

Book,

Mode, Tape

Tape

with

0)

Printed

Monitor

Matter

·

..

t:~.

0·

S

SU-8022K

..

.

eMce

TECHNICAL

[DIN

45

AMPLIFIER SECTION

20

Hz -20 both

40

Hz

-16

both

1

kHz

continuous

both

Power

bandwidth

both

Total

harmonic rated rated rated half half

-26 SOmW

Intermodulation

rated rated

ReSIdual Damping Input

sensitivity PHONO TUNER.AUX TAPE

PHONO

SPECIFICATIONS

500]

kHz

continuous

channels

channels channels

channels

power power

power power power

dB

power power hum

factor

maximum

kHz

distortion at at

at 1 kHz at at 1 kHz

power

at at

& noise

and

1.

PLAYBACK

driven

continuous

driven

power

driven driven.

20 40

20

Hz ~ 20

at 1 kHz at 1 kHz distortion

250

60

Hz: 7 kHz = 4:1.

impedance

input

. • "

Specifications

power

output

power

output

dB

kHz

kHz kHz

(1

2 x 40 W

2 x

kHz.

output.

-3

Hz ~ 20 Hz -16

Hz: a kHz = 4:1.

voltage

(40),2 x 35

45 W (4D1,

5

Hz

5

Hz ~ 30

0.05%

(40),0.03%

0.05%

(40),0.03%

0.05%

(401.

40

SMPTE.

aD 0.03%

0.6

mV

16

RMS)

2 x 35W (SO)

W (SO)

2 x

38 W (SDI

~

30

kHz kHz

0.03%

0.02%

0.008%

0.15%

0.2% (4D1

0.05%

(0.6

mV,

(4D),

32

2.5

mV/47

150

mV/27

lS0

mV/33

150

are

(4D) (SDI

(SO) (SO) (SD) (SDI (SDI (40)

IHF) (SDI

mV

subject

kO kO kO

M··"':

-:

to

change

without

SIN

rated

power

-26

dB

50

mW

Frequency

Tone

controls

High

filter Subsonic Loudness

Output

Channel balance Channel Headphones Load

GENERAL

Power Power Dimensions

Weight

filter

switch

voltage

separation

impedance

consumption supply

. . .

.•.

,.~--

anua

Stereo I ntegrated Amplifier

SU-80:22

(0), (OG), (XGH), (XGF),

(XE), (XSW),

SU-8022K

(0), (OG), (XGH), (XSW) , (EB)

'~~models

,re

:The

are

•

The

•

The

available

•

The available

•

The available

•

The Latin

The

• only.

notice

at

TUNER.AUX

power power response

and

(250

output

(50

(W x H x

available

models

available

model model

in

models

in

models

in

models

America,

model

for

40

PHONO

at

40

at

40

TUNER. BASS

TREBLE

(volume

impedance

Hz

at 1 kHz

level

Hz/60

D)

SU-S022

in

Scandinavia

SU-8022

in

Holland SU-S022 SU-8022

Belgium SU-S022

United

SU-8022

Switzerland

SU-S022

Middle

SU-S022

further

PHONO TUNER. PHONO TUNER.AUX

PHONO

AUX.

at

-30

~6300

AUX and

impedance MAIN MAIN + REMOTE

Hz)

(X),

(XA),

(0,

DG)

and

SU-8022K

and European

IXGH)

and

only.

(XGF)

is

(ES)

only.

Kingdom

(XAU

improvement.

TAPE

dB) REC REC/PLAY

Ht).

or

(

16-29/32"x3-13/16"x9-7/16")

available in France

and

SU-8022K

(XE)

and

SU-8022K

only.

(XSW)

and

only,

(X,

XA)

are

East and

is

available in Australia

72

S6

AUX

R I

30

Hz ~ 15

20

Hz ~ 20

10

Hz

50

Hz,

20

kHz,

OUT

AUX

REMOTE

11

OV

430

Africa

dB dB

30

/120V

only.

SU-S022K

(ES)

(XE)

SU-8022K

available in Asia

only.

(IHF,

A:

(IHF,

A:

AA

standard curve

kHz,

±O.S

kHz,±0.5

~50

kHz,

+10

dB

~-10

+10

dB

~-10

7

kHz,

-6

Hz,

-6

50

Hz,

150

30

mV/S2

± 1.0

330

mV/3300

4~160

8~160

/220V

x 97 x

240

5.4

kg

(11.9 Ib.)

dB/oct. dB/oct.

..

(EB),

(XAL)

(XE),

ID,

DG)

(XGH)

only.

are

(XSW)

are

'

80 dB) 97

dB)

62 dB

63

dB

62 dB

62dB

dB dB

-1

dB dB dB

+9 dB

mV

kO

dB

55

dB

400W

/240V

mm

Printed

in Japan

7902-6S00G

Technics

Matsushita

PO.

Electric

Box

Trading

288, Central Osaka

Co.,

Ltd_

Japan

U-B022/K

• CONTENTS

TECHNISCHE OATEN

Spezifikationen konnen

[DIN 45 500]

VERSTARKERTEIL

Dauertonleistung bei

beide Kaniile zusammen ausgesteuert

Dauertonleistung bei

beide Kaniile zusammen ausgesteuert

Dauertonleistung bei 1

beide Kaniile zusammen ausgesteuert

Leistungsbandbreite

beide Kaniile zusammen ausgesteuert,

Harmonische Verzerrungen

Nennausgangsleistung bei Nennausgangsleistung bei Nennausgangsleistung bei 1

Halber Ausgangsleistung bei Halber Ausgangsleistung bei 1

-26

dB

Ausgangsleistung bei 1

50

mW Ausgangsleistung bei 1

Intermodulationsverzerrung

Nennausgangsleistung bei Nennausgangsleistung bei

Brummen & Rauschen Diimpfungsfaktor Eingangsempfindlichkeit & Impedanz

PHONO 2,5 TUNER,AUX TAPE

PHONO Maximale Eingangsspannungen

1,

20

40

PLAYBACK

Hz

-

Hz -16

kHz

20

kHz

2 x

20

Hz -

40

Hz

-16

kHz

20

Hz -20

kHz

250

Hz: 8 kHz = 4:1,

60

Hz: 7 kHz = 4:1,

2x 2x

2 x

45

W

(4D),

2 x 38 W (SO)

-3

dB

5 Hz

-30

5 Hz - 30 kHz (SD)

20

kHz kHz

0.05%

(40),0,03%

0,05%

(4D),

kHz

SMPTE

0,6

mV

(0,6

16

(40),

150mV/27kD

kHz

RMS) 150

lS0

(1

infolge

35W 40W

35 W (So)

kHz

0,05%

0,03%

0,03% (SO) 0,02%

O,OOS%

0,15%

0,2%

4D

0,05%

8D

0,03%

mY,

32 (SO)

mV

/47

mV/33

von Verbesserungen oh ne

Fremdspannungsabstand (SO) (40)

(40)

(4D)

(So) (So) (S

D)-

(S

D) _

(40)

(4D)

IHF)

kD kD

mV

Nennausgangsleistung bei 4 D

-26 50

mW Ausgangsleistung bei

Frequenzgang

Klengragler

Unterschallfilter Hochton Gehorgerechte

AusgangtlPllnnungen & Impedanz

Kanalabweichung Kanaltrennung bei 1 Kopfhorerpagel Lautsprecher·Ausgangsimpedanz

ALLGEMEINE OATEN

Leistungsaufnahme

Netzspannung umschaltbar Abmessungen (B x H x

Gewicht

Ankundigung

PHONO

dB

TUNER,

Ausgangsleistung bei

PHONO

TUNER,

BASSE HOHEN

filter

Lautstiirkekonektur

(250

und

MAIN MAIN

geiindert werden.

AUX

4D

PHONO TUNER,AUX

4D

PHONO TUNER,AUX

AUX,

TAPE

(Lautstiirke

REC

-6300

AUX

REMOTE

(50

Hz/60

REC/PLAY

Hz),

Hz

kHz,

Ausgangsimpedanz

oder und

T)

72

dB

(lHF,

S6

dB

RIAA

30

Hz-15

20

Hz-20

10

Hz

50Hz,+10dB--l0dB

20kHz,+10dB--l0dB

OUT AUX

Hz)

110V/120V/220V/240V

430

A:

(lHF,

A:

Standardkurve

kHz,±O,S kHz,±0,5

-50

kHz,

30

Hz,

-6

7

kHz,

-6

bei

-30

50

Hz,

30

mV/S2

330

mV/330D

x 97 x

dB/oct. dB/oct.

dB) 150mV

±l,OdB

240

SO 97

62 63dB 62 62

-1

+9

55dB

400

mm

5.4

dB) dB)

dB dB

dB

kD

W

kg

LOCATION NOTE HOW

AND BEFORE HOW PRINTED SCHEMATIC BLOCK

OF

CONTROLS,

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

TO

REMOVE

FRONT

PANEL

STARTING

TO

REMOVE

CIRCUIT

DIAGRAM

• LOCATION

Speakers

Power

S'·lItf'h

.

....<

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

THE

CABINET,

..........•..........

THE

REPAIRING

THE

POWER IC

BOARD

WIRING

.•.......•..........

OF

INTEGRATED

OF

CONTROLS

Bass

BOTTOM

....••............

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

VIEW

.........•

CIRCUITS

BOARD

Selector switch

(tuner - phono -

Ba

........

I

""""'

9

__

Treble

3-4

4-5

6

-12

4

5

-8

12

TERMINAL

REPLACEMENT BLOCK REPLACEMENT EXPLODED REPLACEMENT

Packing Parts)

PACKINGS

ACCESSORIES

CHANGE

GUIDE

DIAGRAM

VIEWS

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

OF

PARTS

OF

TRANSISTOR

PARTS

LIST

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

PARTS

LIST

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

PARTS

LIST

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

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

LIST

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

ubsonic filter

Tape

monitor switch

& IC

(Electric

(Cabinet and Chassis Parts)

(Accessories and

Parts)

(.

(tape 1 - source - tape 2) Recording mode switch (tape 1

~

2 - source - tape 2

udness switch

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

...........

off

.-on)

Volume

....

15 -16

~

12 13 14 14

17 17 17 18

1)

CARACTERISTIOUES TECHIOUES

[DIN 45 500]

PARTIE AMPLlFICATEUR

Puissance de sortie

les

deux canaux en

Puissance de sortie

les

deux canaux en

Puissance de sortie

les

deux canaux en

Largeur de bande de puissance

pour

I'ensemble des canaux excites,

Distorsion

pour

la puissance mesuree a 20

pour

la puissance mesuree a 40

pour

la puissance mesuree a 1

pour

la demi'puissance mesuree a

pour la demi·puissance mesuree pour

une

pour

une

Distorsion

pour

la puissance mesuree a

pour

la puissance mesuree a

Tension residuelle de Facteur d'amortissement 16 Sensibilite

PHONO TUNER,AUX TAPE

continue

harmonique

puissance mesuree de puissance mesuree de

d'intermodulation

& impedance d'entree

1,

PLAYBACK

circuit

totale

bruit

de 20

avec distorsion

de

avec distorsion

a 1

avec distorsion

Hz

- 20

40

Hz -16

kHz

-3

Hz

- 20

Hz

-16

0,05%

kHz

0,05%

20

Hz -20

a 1

kHz

-26

dB, 1 kHz

50

mW, 1 kHz

250

Hz: 8 kHz = 4:

60

Hz: 7 kHz = 4:1,

kHz

dB

kHz kHz

0.6

Sujet a changement

35 W (So)

2 x

2 x 40 W

2 x

35W

2 x 45 W

2 x 38 W (SO)

5 Hz -

30

0,05% 0,03% (SO)

(4D),

0,03%

(40),0,03%

kHz

0,02% (SO)

O,OOS%

0,15%

0,2%

1,

4D

8D

mV

(0.6

(4D),

2,5

mV/47

150mV/27kD

lS0

mV/33

kHz

mV,

32

5 Hz - 30 kHz

(4D)

(SD)

(4D)

(So)

(40)

(Sm (SD)

(So)

(4D) (4D)

0,05% 0,03%

I H

F)

(SO)

kD kD

sans

prElaris.

Voltage d'entree

Repport

pour

pour pour

Reponse de frilquence

PHONO TUNER,AUX

Reglage de la

BASS (graves) TREBLE

Filtre

subsonique

Filtre

haut Correction Tension de sortie

Equilibrage de canaux (250 Hz separation des canaux A!-,X 1 Niveau du casque Impedance de charge

maximum

signal/bruit la puissance nominale,

PHONO TUNER,AUX

une sortie de une sortie de

physiologique (volume a

-26 50

tonalite

(aigus)

& impedance

et

impedance de sortie

GENERALlTES

Consommation Alimentation Dimensions Poids

(50

(L

x H x Pr)

Hz/60

(PHONO, 1

dB,

mW,

MAIN MAIN

Hz)

kHz,

RMS)

4D

kHz

ou et

72

dB

(lHF,

S6

PHONO

TUNER,AUX PHONO 62 dB TUNER,AUX,TAPE

REC

REC/PLAY

6300

REMOTE

REMOTE-

dB

eou

30

Hz -

20

Hz -20

10

Hz

50

Hz,

20kHz,+10dB--l0dB

30

dB)

OUT

Hz),

AUX

. 5 D

110V

430 x 97-x240:mm

A:

(iHF,

A:

rbe standard R

15

kHz, kHz,

-50

kHz,

+10

dB

--10

30

Hz,

-6

7

kHz,

-6

50

Hz,

30

mV/S2

330

mV

-4s~

/120V /220V

150mV

SO

dB)

97 dB)

62dB 63dB

62dB

IAA ±O,S dB ±0,5

dB

-1

dB dB

dB/oct. dB/oct.

+9

dB

150

mV

kD

± 1

,g

~~

/33g

~6D

400W

/240V

5:~g

REC/PLAY (DIN

Tape deck

1-EPLAYn""

.. ,,---,

Voltage adjuster

REC

AC

outlets

Grou

HO

Input TUN

-E

AUx-----'

* This

photo

D

*

The

shows only

products for

other

the

products

destinations

for

(X) and (XA).

except

(X) and (XA) are

circuit protection fuses

not

equipped with AC outlets.

"022/K

·

...

12

·

...

13

·

...

14

·

...

14

.15~16

·

...

17

·

...

17

·

...

17

·

...

18

SU-S022/K

Left

ch.

power amplifier I

Right

ch.

power amplifier

Equalizer

amplifier circuitry

le

y-®

~

T

~

(9)@

,9

@

SU-8022/K

~

T

r®

~

~set

Foot

Bottom Board

i

19

2 ~ 1)

Jtlets

• NOTE

The

unit

is

provided prevent the power IC function blowing.

• HOW

How

1.

2.

upon

TO

to

remove the cabinet

Remove the 4 setscrews

Shift

the

cabinet backward

with

from

completion

main Ctmplifier

the speaker

destruction, should the speaker terminals

of

the speaker connections, check the speaker

ci

circuit

protection

fuses at the right and

be

short-circuited.

circuit

left

channels respectively. The fuse

Accordingly,

protection

fuses

first

if

the

of

all

unit

for

is

fails

possible

REMOVE THE CABINET, BOTTOM BOARD AND FRONT PANEL

(CD

~

and

Fig. 1

@ in Fig.

lift

it

1)

upward.

on the side and 4 setscrews

(Arrow

G in Fig.

1)

(@~

® in Fig. 2) on the back

Fig. 2

of

the cabinet.

to to

Fig. 3

• BEFORE STARTING THE REPAIRING

Before adjusting or repairing,

of

the

opposite poles resistor charged voltage . Short-circuiting dangerous, but may destroy transistors should therefore

• HOW

1.

2. Remove the 3 setscrews

3.

4.

5.

approximately

TO

Remove the solder and Rch.

to

fasten the heat sink

Remove the heat sink along

direction

the Remove the 2 setscrews to

secure the power

then pull the power IC in

@.

When

mounting compound back

of

power I

- 4 reversely.

8200pF

of

with

a screw driver and the like

be

avoided.

REMOVE THE POWER IC

of

power

from

of

arrow G (Fig.

IC

the power IC,

(or equivalent heat diffuser)

C,

and then

be

sure

to

capacitors (C501, 502)

"50[2,

5W"

for

discharging the

and

IC

for

both

(CD

- ®

in

Fig.

5)

the center bracket.

with

power IC in

6)

(@,

CID

in Fig.

6)

used

on the heat sink,

the

direction

follow

of

apply

the steps 1

arrow

silicone

to

short-circuit

with

is

not

only

diodes,

Lch

use

and

the

and

a

Lspeaker Tenniral J

Fig. 4

Electrolytic

Speaker Circuit

Protection Fuses

Capacitor

Resistor(500,50W)

r=J

Rear

Panel

LEFT

CH

POWER le

How

to

detach the bottom board

1.

Remove the 4 setscrews

secure

bottom

Fig. 3)

detached.

for

board and 4 setscrews ( ®

the

legs.

(@

~

Then the

@ in Fig. 3)

bottom

board

~

used

@ in

can

to

be

10

How

1.

detach the front panel

Remove the 4 setscrews ( @ - ® in Fig. 4) carefully pull the

front

panel toward you.

and

then

POWER

IC

IIC3031

CENTER BRACKET

Fig. 5

POWER

IIC3041

PRINTED

CIRCUIT

BOARD

Fig. 6

IC