Mitsubishi DA-U630 User manual

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SPEAKERS

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foit

aoft

2on

aon

SPECIFICATIONS

1.

PREAMPLIFIER

SECTION

lnput

sensitivity/impedance

(at

continuous

rated

power

output,

8

ohms,

1kHz)

PDI:

brie

sae

Nadas

OOM,

we

Muh

Sept

aaa

AE

TUNER,

AUX,

PLAY

1,

2

(PIN)

PLAY

TDUND

4

Scop

dg

Re

eed

Se

Phono

overload

level

{at

1kHz,

with

0.1%

THD)

PHONO)

i

se

cence

et

wre

eee

ls

why

a

Output

levet/impedance

REC

1,

2

(PIN)

ECU

IMs:

3

aha

ct

te

aeareerue

A

Frequency

response

PHONO

- ©

©

&€

8

ww

m

@

&

©

=

©

ew

we

we e+

& 4

TUNER,

AUX,

PLAY

1,

2

2.

POWER

AMPLIFIER

SECTION

Power

output

Total

harmonic

distortion

Intermodulation

distortion

(70Hz

and

7kHz,

4:

1)

Power

bandwidth

(1HF)

Damping

factor

3.

GENERAL

Power

consumption

Dimnesions

(W

x

H

x

D}

Weight

POWER

LEVEL

W/An

le

;

ba

Se

ole

She

et

3

6

13

25

50

i

bP

i

[a

A

i

AT

AS

A

Seems

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atten

|

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tig

Jia,

Terenas.

ay

ae

ar

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C

):

+8

-10

+10

MITSUBISHI

AUDIO

SYSTEMS

SERVICE

MANUAL

INTEGRATED

AMPLIFIER

MODEL

DA-U630

VOLUME

POWER

LEVEL

TAPE

2

TAPE!

AUK/T¥Y

TUNER

LOUDNESS

Coa

|

oe

|

a

|

[a

7

Lott+-@

Loft

fon

*

2

0n

PrONO

[on]

SUBSONIC

FILTER

HIGH

FILTER

BOLANGE

center

0

@a

MITSUBISHI

pA—U630

STEREO

INTEGRATED

AMPLIFIER

Tone

control

Bios:

5a:

Ga

gam,

esta

tie

ct

De

eed

ee

+

10dB

at

100Hz

2.5mV/50k

ohms

Weve

Bice.

cn

ScG

eS

Gen

am aa

SB)

foace

ks

+

10dB

at

10kHz

150mV/45k

ohms

Fiiter

150mV/45k

ohms

SWBSONIC.

0

eGR

Be

oars

etace~

sy

Eos

20Hz

(6dB/oct)

(UK)

TRUCE

it

cose,

we,

ver

2k

Ae

Ge ak

Sng

ner

he

ee

ie

tae

ate

7kHz

(6dB/oct)

Loudness

(Volume

control

set

at

—30dB8

position)

+7dB

at

100Hz

150mV/600

ohms

+5dB

at

10kHz

5OmV/100k

ohms

Hum

and

noise

(

A

network

closed

circuit)

(UK)

PIG

INO

esis

tn

Bk

he

eh

ate

eat

ae

he

74dB

+9.5dB

from

20Hz

TUNER,

AUX,PLAY

1,2

.........

90dB

to

20kHz

Hum

and

noise

(DIN,

50mW

x

2)

(RIAASTD}

PHONG:

6

455

eye.

S

8

Se)

$s

ah

de

SS

63dB

"*

dB

from

TUNER,

AUX,

PLAY

1,2

.........

65dB

10Hz

to

60kHz

50W

continous

power

per

channel,

both

channels

driven

into

8

ohms

at

1kHz,

with

0.02%

THD

64W

continous

power

per

channel,

both

channel,

both

channels

driven

into

4

ohms

at

1kHz,

with

0.05%

THD

0.01%

at

25W

per

channel},

both

channels

driven

into

8

ohms

at

1kHz

0.03%

at

rated

power

per

channel,

8

ohms

0.02%

at

25W

per

channel,

8

ohms

10Hz

to

40kHz

at

0.1%

THD,

8

ohms

25

from

20Hz

to

20kHz,

8

ohms

260W

(IEC

nominal)

424

x

140

x

249

mm

6.1

kg

(13.4

Ib)

(16-3/4

x

5-1/2

x

9-13/16"’)

Design

and

specifications

are

subject

to

change

without

notice

for

improvement.

aa

MITSUBISHI

ELECTRIC

CORPORATION

DA-U630

DISASSEMBLY

(NOTE)

Excessive

tightening

of

the

molded

section

screws

should

be

avoided,

1.

REMOVAL

OF

TOP

AND

BOTTOM

COVERS

(1)

First,

remove

the

4

set

screws

of

the

top

cover.

Then,

remove

the

cover

by

sliding

it

backward

with

the

rear

part

slightly

lifted

up.

(NOTE)

As

the

set

screw

on

the

right

rear

side

is

provided

with

a

crown

washer,

due

attention

should

be

paid

when

removing

it.

(2)

The

bottom

cover

will

come

off

when

the

two

set

screws

are

removed,

In

this

condition,

it

is

possible

to

inspect

the

pattern-

side

of

Board

PMA-14.

(power

AMP

and

power

supply)

SETTING

OF

LEVEL

INDICATOR

BOARD

AS-

SEMBLY

TO

UPRIGHT

POSITION

Following

the

instructions

given

in

1-(1),

remove

the

top

cover.

Unscrew

screw

(1)

shown

in

Fig.

1.

The

board

can

be

set

upright,

by

slowly

sliding

the

whole

board

to

the

right

and

raising

it.

*

REMOVAL

OF

PANEL-ASSY

(FRONT)

Following

the

instructions

given

in

1-({1),

take

off

the

top

cover.

Pull

off

all

the

VR

knobs

and

remove

securing

nut

from

the

VR.

Remove

the

four

screws

(1)

:

(2)

and

(3)

shown

in

Fig.

1.

The

front

panel

will

come

off

when

the

two

set

screws

are

removed

from

the

bottom

side.

SETTING

OF

BOARD

PA-89

(PRE

AMP

AND

EQUALISNTION

)

TO

UPRIGHT

POSITION.

Following

the

instructions

given

in

1-(1),

remove

the

top

cover.

Pull

off

the

VOLUME

and

BALANCE

knobs

shown

in

Fig.

1.

Then

remove

the

securing

nut

of

the

VR.

Unscrew

the

two

screws

(3)

shown

in

Fig.

1.

Remove

the

screw

provided

behind

the

SW

at

the

left

end

of

the

upper-side

board

and

take

off

the

jack

from

the

board.

Now,

the

board

can

be

set

upright,

Level

indicator

P.

C.

Board

Black

lead

wire

with

tug

terminal

t

VOLUME

Top

view

of

front

panel

Fig.

1

SETTING

OF

BOARD

PMA—14

(POWER

AMP

AND

POWER

SUPPLY)

TO

UPRIGHT

POSITION

a.

Following

the

instructions

given

in

‘’3,

remove

the

front

panel.

b.

Unscrew

the

screws

descrided

in

‘’4-a"

and

set

board

DA-89

to

an

upright

position,

c.

Unscrew

the

six

screws

(1)

shown

in

Fig.

2.

Now,

board

PMA-14

can

be

raised

to

an

upright

position.

Black

lead

wire

with

lig

terminal

Onc

oe

|

co

male

Ae

®,

“Dee

_

—

Fig.

2

ADJUSTMENT

OF

LEVEL

METER

OFFSET

VOLTAGE.

1.

Following

the

disassembly

instructions

give

in

“2”,

set

the

level

indicator

board

to

an

upright

position,

2.

Adjustment

is

to

be

performed

at

“‘no-signal”’.

3.

Connect

a

DC

voltmeter

between

the

earth

and

Terminal

No.

5

of

1C481

and

!C581.

4.

By

turning

VR481

and

VR581

respectivly,

adjust

for

minimum

voltage.

ee

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DA-U630

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TRANSFORMER

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CASE

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PANEL

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|

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BRIN

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Ss

a

5

JN

: :

BORG

J

:

POWER

LEVEL

W.

/

Bo

|,

The

colors

of

wire

material:may.

be

different

from.

nae

4

-

:

Left

TTL.

those

of

the

actual

sets

|

FOOA

BL

JEL

ad

:

|

JN

s5

14

eA

0:2:0,4:08.

1S

326.

1325.50

BLK--Black

BRN--Brown

—

RED----Red

|

aa

sé

sev

joe

POWER

Pi

|

i

ny

ed

ea

Right

WHT.

)

Se

34

ORG:

Orange.

.YEL----

Yellow

GRN----

Green

BLK

JP2I

:

.

AGI:

Dek

:

;

BLU---Blue

PPL.

----Purple

GRY+---

Grey

:

iW

;

WHT---

White

PNK---

Pink

:

!

EST

GERMANY)

i

2.components

marked

with

J

are.

critical

,

ur

for

continued.

safety.

and

performance

:

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of:

this:unit..

Replace.

with

components

of.

exact

type

as

specified.

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SUBSONIC

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=

:

POWER

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FILTER

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13,1219,

10,958

NOTE)

C

1.

Units

of

Capacitor

&

Resistor

4.

Of

the

indicated

values,

LN

denotes

“Low

Noise’

the

specified

figures

are

subject

to

change

without

Ss

SP

C

....

NO

symboliuF

Roo.

2

Ne

symbol:@

and

NP

the

“‘No

polarity’

type.

-

prior

notice

for

improvement.

p-symbol:pF

:

k-symbol

:kQ

5.

The

voltages

of

the

respective

sections

are

those

7.

—

Indicates

signal

flow.

|

2.

Unless

otherwise

specified,

resistors

are

“W

resistors.

_

measured

with

a

DC

1MQ/V_

digital

voltmeter.

L-ch

signal

=o

c'S

Capacitors

without

any

voltage

indication

have

a

6.

A\o

‘marked

components

are

those

that

are

critical

R-ch

signal

_

SOV

withstand

voltage.

for

the

continued

safety

and

perfomance

of

this

oe

a

.

86

EC

ache

3.

Values

of

components

without

any

specific

figure

unit.

Replace

only

with

components

of

the

exact

ee

:

2SCI735

indication

are

the

same

as

those

of

the

other

channel.

type

as

specified.

As

this

is

a

basic

schematic

diagram,

|

es

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2eSA850

2SA798G

2SBE82

2SA999

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DA-U630

—

DA-U630

|

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CIRCUIT

BOARD

PA-89

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[:

3

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SYM!

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address

Symbol

|

address

Soot

No. No.

a

No.

Pac

cens

e

,

JPIZ.

UP

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JPIS

aes

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C11

A-6

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B-6

D14

B-6

R451

C5.

R882

B-4

8

C15

B6

D451

B-4

R452

C5

R883

B-4

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C16

BS

D452

B-4

R453

BS

R884

B-3

Ce

ee

|

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D-6

D551

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R454

BA.

Ress

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ee

|

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3

C432

D-6

D552

B-1

R455

B-S.

R886

—6—~B

4

|

Symbol

|

Symbol

|

a,

Symbol

:

Symbol

tee

:

C433

C5

D881

B-4

R456

B-5

Reser

|

C8

fe

|

Address

||

yg.

Address

No:

Address

No.

Address

Hddress

C434

D-6-

D882

B-3

R457

BS

RE88

BA

,

:

|

Soe

|

!

7

C435

C-5

D883

B-6

R458

BS

R889

B-3

|

as

C52

C5

C504

B-1

D485

A-5

IC581

|

=

B-5

R481

AS

Bee

aa

C-3

C451

C5

R460

B-4

R891

B-3

a

|

C53

C-5

C505

B-1

D486

A-4

R482

AS

Ree

De

oe

C452

B-5

1C451

AS

R461

B-5

R892

B33

C54

C-6

C506

Ct

D487

A-4

O51

D-5

R483

A-S

R526

D-2

C-3

C455

B-4

1C551

A-2

R462

A-5

R893

C6

C61

C5

C507

B-1

D488

A4

061

B-6

R484

A-6

R576

C2 C4

C457

A-5

oe

:

R463

AS

C62

BS

C508

C4

D489

a4

a851

6

|

eee

ee

eee

ae

D6

C458

B-5

K881

B-3

||

R464

A5

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PRINTED

CIRCUIT

BOARD

PS42

AS

..

.for

Australia

SN

..

.for

Singapore

PARTS

LIST

UK

..

.for

United

Kingdom

WG

. .

.for

West

Germany

Symbol

No.

Description

T-SCREW

(1-3X10)

SCREW

WASHER-TOOTHED

3

WASHER

SCREW

NUT

M7

KNOB-

ASSY

M07496211

OMAN

Oa

F

WN

|

KNOB-ASSY

M07493210

CUSHION

U561C054H04

|

CASE

SCREW

HOLDER

U700A122H12,;

CABINET

U771D084H03|

LEG

U580C048H01

|

BASE

T-SCREW

(1-4X16)

19

U540D013H11!

CLAMPER

(AS)

(SN)

za

|uboiaa|

ceAMPER

TUM)

U540D016H13|

CLAMPER

(UK,WG)

U292D066H02!

SHIELD

LUG-TERMINAL

PCB-ASSY

RADIATOR

SCREW-B

(M3

X

14)

PCB-ASSY

WASHER-PAPER

HOLDER-ASSY

HOLDER

HOLDER-L

INLAY

(AS,

UK,

WG)

PANEL-ASSY

(Front)

U713D231H01

37

U712C202G01

NOTE:

/\

and

ne

marks

components

on

Parts

Jist

have

special

characteristics

to

keep

safety

performance

of

this

unit.

When

replacing

any

of

these

parts,

be

sure

to

use

only

specified

parts.

Symbol

No.

D11

D12

D13

D14

D51

D641

D451

D452

D480

D481

D482

D483

D484

D485

D486

D487

D488

D489

D551

D552

D580

D581

D582

D583

D584

D585

D586

D587

D588

D589

D851

D852

D853

D854

D856

D857

D858

D859

D860

D881

D882

D883

D884

Q51

Q61

0451

oe

i

oe

M07447321

M07493320

M07492321

M07493320

M07492321

M07444320

M07492321

M07493320

M07492321

M07444320

MO07444320

M07444320

M07391320

M07493321

M07444320

M07492321

M07444321

M07492321

M07391320

DIODES

GP-30D

MZ320

IS2471

MZ320

1IS2471

oLP-154B

SLP-154B

oLP-154B

SLP-154B

oLP-154B

SLP-154B

1S2471

MZ320

IS2471

oLP-154B

SLP-154B

1SR34-100

MZ308

SLP-154B

1$2471

GL-ING10

GL-9NG10

182471

1$R34-100

TRANSISTORS

M07061304

M07493303

M07133303

25D330

25B514

2SA798

DA-U630

ge

na

ee

Hh

eek

gen

an

tte

dab

eeeenen=

=

Sedna

Ad

Lata

watt

20

aN

Tl

9

Beli

IP

beeps

DA-U630

PARTS

LIST

Symbol

No.

K881

Part

No.

M07133304

M07128303

M07133303

M07133304

M07128303

M07061304

MQ7390304

M07390304

MOQ7071307

M07071307

M07390303

M07363343

M07444343

M07447344

M07363343

M07444343

M07447344

ELECTRICAL

PARTS

/C-PAPER-450V:103M

A.

|

M07470360

..:

—_

‘|.

C-PAPER-450V:103M

AV")

|

M07470360

M07492360

MO07492360

M07492360

M07493360

M07493576

M07492475

M07493575

M07496471

M07447465

C-

Amc

ea

eed

se

TERMINAL

BOARD

(INPUT)

JACK

(HEADPHONES)

TERMINAL

BOARD

2SA850

2SC1735

2SA798

2SA850

2SC1735

2$C1735

2SD330

2SA999

2$C1211D

2SC1211D

2$C2320

2SC2320

M5213L

STKOO50

LB1409

M5213L

STKO050

LB1409

C-CERAMIC-500V

103M

C-CERAMIC-500V

103M

C-CERAMIC-500V

103M

C-CERAMIC-500V

103M

C-ELECT-50V

6800

(Speakers)

CONNECTOR-DIN

(UK,

WG)

RELAY

a

ye

Symbol

(VR522)

VR423

VR431

(VR531)

VR432

(VR532)

VR481

VR581

Part

No.

Description

M07492530

11.

|

M07459440

©

M07493450

M07493431

M07493430_

M07493401

M07493400

M07444402

M07444403

M07440435

“MAINS

LEAD

(AS)

Ayo

AAINS

LEAD

(SN)

Av

“MAINS

LEAD

(WG)

A

SWITCH-PUCH

(Selecter)

SWITCH-PUSH

(Filter)

SWITCH-

-PUSH

(Speakers)

ay

WITCH-F

-PUSH.

(Power)

Ay

©

|

-

|

SW-ROTARY

(SN)

_

HS

POWER

TRANSFORMER(SN)

POWER

TRANSFORMER(AS,

UK,WG)

VR-W-B250K20

VR-STD-W250K20

VR-W-A100K20

VR-SEMI-B1K

DA-U630

|

REAR

PANEL

MITSUBISHI

DA-U630

NOOOOUL

UUUUUOO

Gaines

—-

O0000

a

=e

219

DA-U630

PACKAGE

INSTRUCTION

TAPE

(

PARTSBAG

ae

INSTRUCTION

BOOKLET

ee

U87

1B005H65

(UNITED

KINGDOM)

Se

ES

ACCESSORY-Assy?

U871B005H66(WEST

GERMANY)

U871B005H67(AUSTRALIA)

(SINGAPORE

)

WARRANTY

CARD

U850B090H24

(UNITED

KINGDOM)

~<a

CUSHION

MOLD

U813A057H05

PACKING

COVER

U840D060H02

OLE

STAPLE

—

=

PACKING-

BOX

U800B094H

18

CARD

44.

Mitsubishi DA-U630 User manual

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