Teac Eqa-220 User manual

TEAC

EQA-220

Graphic

Equalizer

¢—cemeammmnmrany

~~

or

eer)

memcemnmrencmrner

er

SERVICE

MANUAL

EQA-220/EQA-110

Graphic

Equalizer

NOTES

@

PC

boards

shown

are

viewed

from

parts

side.

@

Parts

marked

with

*

require

longer

delivery

time.

@

The

parts

with

no

reference

number

or

no

parts

number

in

the

exploded

views

are

not

supplied.

@

As

regards

the

resistors

and

capacitors,

refer

to

the

circuit

diagrams

contained

in

this

manual.

@

A\

Parts

marked

with

this

sign

are

safety

critical

components.

They

must

be

replaced

with

identical

components

-

refer

to

the

appropriate

parts

list

and

ensure

exact

replacement.

@

Parts

of

[

]

mark

can

be

used

only

with

the

version

designated.

[EX/T]:

U.S.A.

and

GENERAL

EXPORT

[C]:

CANADA

[GE]:

GENERAL

EXPORT

[E]:

EUROPE

Effective

:

March,

1993

570464300

$02

:QA-220/EQA-110

|

1.

SPECIFICATIONS

EQA-220

Number

of

Channels:

2

Number

of

Bands:

10

Center

Frequencies:

30,

60,

125,

250,

500,

1k,

2k,

4k,

8k,

16kHz

Boost/Cut

Range:

+12

dB

Input

:

Impedance:

47

k

ohms

Nominal

Level:

0.3

V

Outputs:

impedance:

1

k

ohms

Maximum

Level:

6

V

Frequency

Response*:

10

Hz

~

100

kHz,

+1

dB

Total

Harmonic

Distortion:

0.01

%

Signal-to-Noise

Ratio*:

90

dB

(IHF

A

Weighted)

Power

Requirements:

115/230

V

AC,

50/60

Hz

(U.S.A./General

Export

Model)

120

V

AC,

60

Hz

(Canada

Model)

230

V

AC,

50

Hz

(Europe

Model)

240

V

AC,

50

Hz

(U.K./Australia

Model)

Power

Consumption:

12

W

Dimensions

(W

x

H

x

D):

435

x

83

x

213

mm

(17-1/8"

x

3-1/4"

x

8-3/8")

Weight

(net):

2.7

kg

(5-15/16

Ibs.)

Standard

Accessories:

RCA

pin-plug

cords

EQA-110

Number

of

Channels:

2

Number

of

Bands:

10

Center

Frequencies:

30, 60,

125,

250,

500,

1k,

2k,

4k,

8k,

16kHz

Boost/Cut

Range:

+

12

dB

Input

:

Impedance:

47

k

ohms

Nominal

Level:

0.3

V

Outputs:

impedance:

|]

k

ohms

Maximum

Level:

6

V

Frequency

Response®*:

10

Hz

-

100

kHz,

+1

dB

Total

Harmonic

Distortion:

0.01

%

Signal-to-Noise

Ratio*:

90

dB

(IHF

A

Weighted)

Power

Requirements:

115/230

V

AC,

50/60

Hz

(U.S.A./General

Export

Model)

120

V

AC,

60

Hz

(Canada

Model)

230

V

AC,

50

Hz

(Europe

Model)

240

V

AC,

50

Hz

(U.K./Australia

Model)

Power

Consumption:

8

W

Dimensions

(W

x

H

x

D):

435

x

83

x

213

mm

(17-1/8"

x

3-1/4"

x

8-3/8")

Weight

(net):

2.5

kg

(5-1/2

Ibs.)

Standard

Accessories:

RCA

pin-plug

cords

*

Measured

with

the

equalizer

sliders

set

to

center-flat

frequency

response.

@

Improvements

may

result

in

the

specifications

and

feature

changing

without

notice.

@

Illustrations

may

differ

slightly

from

production

models.

EQA-220/EQA-110

2.

PC

BOARDS

AND

PARTS

LIST

MAIN

PCB

Coot

g

Ne

3

Ne

f

R23

CoD

47K

BO

cyan

C808

4

COB

bet

-220P—-220P_

«220

Raramas:

ae

it

C725

2

VSR

}

x

ie

:

oe

c

a

:

=

o1

oF

|

3B

+

7

m

K

(230

RIS2

Co

47K

OKesgs

7

R155

C=)

10K

oR

3

26°

iia

one

R251)

12K

R2GC—)

10K

RB2C—

47K

S

emnmanenaiaanl

4]K

C226

R20

R228

pots

“

(0.068

)

aa

yk

:

ceo)

«

ne

R234

eee

Bane’

aS»

fay

st

R203

oa

|

{

(0082)

Seo

pont,

aa

a

<=

.

cae

;

—-

er

*

R206

68K.

:

Taw

i

uae

SN

es

Rte

(aoo3g)

Pfr.

63

—

SSI

martes

TOR

ge

4)

ee

CF

poo,

ae

«—

Cay”

be

ce

ie

|

.

ae

R26)

sex

|

Rah

208

10K

ud

j

:

9

i

3

an

2

ay

las

2

6

221

(2

tar

|

0209

R233

11K

C247

(@008?)

IK

C106

00:

PIA

OK

RIG3

390

R122

68K

C—S-

R128

10K

¢

&

ry,

R11

11K

R26

re

Ww

oO

wo

,ca

So

LK

Re]

231

48

tay

rod

@

J

[

20

Lane

2

cns

0.018

470

x

pare

tJ

x

C113

seaeememmemnanetncasd

“N41

tod

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uw.

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once

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ie

(95000

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on

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sl

>

4078

~:

;

citi

ey

art

P27

CD

ca

Pp,

ORE?

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"20

1

49S

Bees

49S

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W028

BEY

c

EC)

Co

-

Tak

ti

eS

+

3

:

ye

7a)

©

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aED

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OK

®

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(2

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VR

PCB

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VR

PCB

R

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ai

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pean

~—-

Gan)

WOOL

98H

ENED

DISPLAY

PCB

(EQA-220)

=“

=

nn

rn

S

C

ir

om

:

™

Ss

3S

cs

Sao

“ey

Ky

C

aie

‘

C

Qddd,

RB

OR

HOGIGLISZ

SEUS-WED

go

fn!

ne

s

5

mR

m

=

&

SEC

oh

ie

fi)

os

cy

OOOCOO0O0000'

lOO

O10010106

EQA-220/EQA-110

MAIN

PCB

ASSY

(EQA=220)

DISPLAY

PCB

ASSY

(EQA=220)

REFe

NO.

PARTS

NO.

DESCRIPTION

REF.

NO.

PARTS

NO.

DESCRIPTION

*9A04291400

MAIN

PCB

ASSY

I[EX/T,GE,C]

*9A04330200

DISPLAY

PCB

ASSY

¥*9A04291420

MAIN

PCB

ASSY

[E]

D303-312

9A04162200

DIODE,

IK60

9A04296500

PLATE,

EARTH

A

Q30)

9A04162300

TR,

2SD!450S

C401

A

9A04171900

C,

ELEC

!000UF/35V

Q30

2-3

|

9A03979200

TR,

2SC1815GR

C409

A

9A04!171800

C,

ELEC

I!000UF/I6V

U301-303

9A04162100

IC,

NJM2902N

D40

1-403

A

9A04166700

DIODE,

|N4003

U304-306

9A04162000

IC,

TC4066BP

D405

A

9A04166700

DIODE,

IN4005

U307,308

9A04161800

IC,

BA6I24

D406

9A04166800

DIODE,

RD5S.1E

U309

9A04161900

IC,

TC40!17BP

D407

9A04166700

DIODE,

IN4003

D410~-413

A,

9A04166700

DIODE,

IN4003

[EX/T,GE,C]

JS

9A04167200

JACK,

RCA

4P

YKC21-0349

VR

PCB

L

ASSY

(EQA=220)

I5Z

9A04167300

JACK,RCA

4P

YKC21-O0I18A

QIOl=110

9A04166900

TR,

28C732TM

REF.

NO.

PARTS

NO.

DESCRIPTION

Qtti,211

9A04!67100

TR,

2SDI450S

Q201=-210

9A04166900

TR,

25C732TM

*9A04330800

VR

PCB

L

ASSY

R!1O0-19

9A04167500

VR,

SLIDE

250K

Q401,402

9A04!167000

TR,

2SAIOI5GR

9A04167700

LED,

3534HD

$33

9A04166400

SW,

PUSH

PBS-KS-002A

$40

|

Ay

9A04166100

SW,

PUSH

SPUFI2SE07-TK

UlLOl,201

9A04166500

IC,

NJM4560D

U40

I

A

9A04166600

IC,

NJM/824A

VR

PCB

L

ASSY

(EQA-110)

REF.

NO.

PARTS

NO.

DESCRIPTION

MAIN

PCB

ASSY

(EQA~1

10)

¥9A04329900

VR

PCB

L

ASSY

<<

—

wa

R10=—19

9A04167500

VR,

SLIDE

250K

REFe

NO.

PARTS

NO.

DESCRIPTION

*9A04291300

MAIN

PCB

ASSY

[EX/T,GE,C]

*9A04291320

MAIN

PCB

ASSY

[E]

VR

PCB

R

ASSY

(EQA=220)

9A04296500

PLATE,

EARTH

A

C401

4

9A04171900

C,

ELEC

IOO0UF/35V

REF.

NO.

PARTS

NO.

DESCRIPTION

0401-403

A

9A04166700

DIODE,

I|N4003

*9A04330900

VR

PCB

R

ASSY

D405

A

9A04166700

DIODE,

|N4003

R20~-29

9A04167500

VR,

SLIDE

250K

D406

9A04166800

DIODE,

RD5S.IE

9A04167700

LED,

3534HD

D407

9A04166700

DIODE,

IN4003

134

9A04167200

JACK,

RCA

4P

YKC21-0349

ID2

9A04167300

JACK,

RCA

4P

YKC21-O0!18A

VR

PCB

R

ASSY

(EQA=110)

QIOl-110

9A04166900

TR,

2SC732TM

Q1It,2il

9A04167100

TR,

2SDI450$

REF.

NO.

PARTS

NO.

DESCRIPTION

Q201-210

9A04166900

TR,

2SC732TM

Q401,402

9A04167000

TR,

2SAIOI5GR

*9A04330000

VR

PCB

R

ASSY

S3l

9A04166200

SW,

PUSH

PBS=-22LP3~F

18

R20-29

9A04167500

VR,

SLIDE

250K

Soe

9A04166300

SW,

PUSH

PBS-42LP3-F

18

S40

|

A

9A04166100

SW,

PUSH

SPUFI|2SE07-TK

UlOt,201

9A04166500

IC,

NJM4560D

U40|

4

9A04166600

IC,

NJM/824A

LED

PCB

ASSY

(EQA=110)

REF.

NO.

PARTS

NO.

DESCRIPTION

¥9A04330100

LED

PCB

ASSY

D301

9A04167900

LED,

333AD

(ORENGE)

D302

9A04167800

LED,

33310C

(RED)

'QA-220/EQA-110

3.

EXPLODED

VIEW

AND

PARTS

LIST

po

—

a

eH

HH

ae

EQA-220

(

|

f

!

i

°

p

re

EQA-220

|

REF.

NO.

|

2

PP

BPBPBP

oO

Oo

~]

A

10

A

lt

A

13

14

15

16

17

18

19

20

21

22

23

3

|

32

33

34

35

36

aT

38

39

PARTS

NO.

¥*9A04

156200

9A04

156900

9A0415

7000

9A04157100

9A04

157200

9A04

157300

9A04157400

9A04157500

9A04157600

¥*9A0429

1300

¥9A0429

1320

¥9A0429

|

400

¥9A04291420

¥9A04330

100

¥9A04330200

¥9A04

156600

¥*9A04

156700

¥9A04

156800

¥*9A04

159600

9A04

158200

¥*9A04

156300

¥9A04309600

*9A04309700

¥*9A04309800

¥9A04309900

*¥9A043

10000

*#9A043

10100

*9A043

10300

¥9A04

16

1

700

*9A04

157800

¥9A04

157700

¥*9A04

156400

*9A04

156500

*9A0429

1000

9A04

158000

9A04158100

*9A04

157900

*9A043

10400

9A04291

100

9A04

158300

*9A04330800

*9A04329900

*9A04330900

¥9A04330000

*9A04

158600

*9A04

158700

*9A04

159000

¥9A04

158900

*9A04

158800

¥*9A04

159300

*9A04

159100

*9A04

159200

*9A04

159400

INCLUDED

ACCESSORIES

REF

e

NO.

PARTS

NO.

*9A04

160500

*9A0407

1200

*9A0412

1600

*9A0407

|

300

¥#9A04121700

DESCRIPTION

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.

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SCREW,

CAP-S

T3*6

(BLK)

SCREW,

C=TITE

T3*8

(BLK)

SCREW,

BTT=S

SCREW,

CAP=S

SCREW,

PTT-P

SCREW,

BTT=S

SCREW,

BIT-P

SCREW,

BTT=S

SCREW,

BTT=S

DESCRIPTION

Tors

T3760

T3*8

F3*6

pos

T4*8

T3*10

RCA

PIN-PLUG

CORDS

EQA=110

OWNER'S

MANUAL

(MULTI.

»)

EQAm110

OWNER'S

MANUAL

(ENG.

/SPANI

SH)

EQA=220

OWNER'S

MANUAL

(MULTI.)

EQA=220

OWNER'S

MANUAL

(CENG./SPANI

SH)

REMARKS

EQA~110

C

EQA@

110

E

EQA-220/EQA-110

EQAm110

EX/T,

GE

EQA=220

C

EQA=220

E

EQA=220

EX/T,

EQA~

220

EQA~1

10

EQA~!10

EX/T,

EQA-II0

E

EQA=220

EX/T,

EQA=220

E

EQA~110

EQA-220

EX/T,

C

GE

E

EX/T,

GE

EQA=110

EX/T

EQA-110

C

EQAwI10

E

EQA=|10

GE

EQA=220

C

EQA=

220

E

EQA-220

GE

EQA=220

EX/T

EQA=220

EQA~

220

EQA=

110

EQA-220

EQA~220

EQA=110

EQA=1

10

EQA-

220

EQA*220

EQA-

110

EQA~220

EQA-110

REMARKS

GE

EQA-110

EX/T

EQA=220

C,

E,

GE

EQA=220

EX/T

‘(QA-220/EQA-110

|

IC

BLOCK

DIAGRAM

BA6124

Di

D2

D3

D4

GN

DS

AMP

OUT

IN

Vec

5.

BLOCK

DIAGRAMS

EQA-220

O)

F

LINE

IN

|

2

TAP

re

REC

EQ

|

=

CIRCUIT

EQUALIZER

'

ee

ree

ae

INPUT

cN-o

py

SOURCE

|,

ee

if

TAPE

PLAY

%

OFF

A

TAPE

O

|

LINE

OUT

|

a

MONITOR

EQA-110

Oy

as

ea

ee

cee

ge

a

pacts

kis

es

ed

|

LINE

U)

0

TAPE

ee

ae

INPUT

|

TAPE

PLAY

|

EQA-220/EQA-110

6.

EQA-220

SC

H

E

MATI

C

D

|

AG

RAM

INSTRUCTIONS

FOR

SERVICE

PERSONNEL

BEFORE

RETURNING

APPLIANCE

TO

THE

CUSTOMER,

MAKE

LEAKAGE-

CURRENT

OR

RESISTANCE

MEASUREMENTS

TO

DETERMINE

THAT

EXPOSED

PARTS

ARE

ACCEPTABLY

INSULATED

FROM

THE

SUPPLY

CIRCUIT.

Ad

Parts

marked

with

this

sign

are

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10

Teac EQA-220 User manual

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