Technics SU-C800UM2 Bedienungsanleitung

Control

Amplifier

System:

SU-A900DM2

SU-C800UM2

SE-A900SM2

System:

SU-A800DM2

SU-C800UM2

Specifications

(DIN

500)

Total

harmonic

distortion

—

kHz

input

sensitibity/impedance

0.01

(Vol.

Max.)

PHONO

2.5

mV/47

TUNER,

CD,

AUX,

TAPE

200

mV/27

Phono

maximum

input

voltage

kHz,

RMS)

150

S/N

PHONO

(77

dB,

IHF

'66)

TUNER,

CD,

AUX,

TAPE

Frequency

response

PHONO

RIAA

standard

curve

(30

kHz)

TUNER,

CD,

AUX,

TAPE

(97

dB,

IHF

’66)

—

kHz

(+0,

—

dB}

dB,

—

0.3

(20

—

kHz)

Tone

controls

BASS

Hz,

+10

dB,

-10

TREBLE

kHz,

+10

dB,

-10

Service

Manu

Remote

Control

Transmitter

Because

unique

interconnecting

cables,

when

component

requires

service,

send

bring

the

entire

system.

ORDER

NO,

AD9707103C2

Amplifier

Colour

».

Remote

Control

(K)......Black

Type

Transmitter

oe:

Area

(E)

........

Europe.

System:

SU-A900DM2

Control

amplifier

SU-C800UM2

Power

amplifier

SE-AS00SM2

System:

SU-A800DM2

Contro!

amplifier

$§U-C800UM2

Power

amplifier

SE-A800SM2

Muting

—

Output

voltage

TAPE

REC

OUT

200

PRE

OUT1,

Channel

balance

(AUX,

250

—

6.3

kHz)

+1dB

Channel

separation

(AUX,

kHz)

GENERAL

Dimensions

430

69.3

307

Weight

2.7

Notes:

Specifications

are

subject

change

without

notice.

Weight

and

dimensions

are

approximate.

Total

harmonic

distortion

measured

the

digital

spectrum

analyzer.

ZA\WARNING

This

service

information

designed

for

experienced

repair

technicians

only

and

not

designed

for

use

the

general

public.

does

not

contain

warnings

cautions

advise

non-technical

individuals

potential

dangers

attempting

service

product.

Products

powered

electricity

should

serviced

repaired

only

experienced

professional

technicians.

Any

attempt

service

repair

the

product

products

dealt

with

this

service

information

anyone

else

could

result

serious

injury

death.

Technics

1997

Matsushita

Electric

Industrial

Co.,

Ltd.

All

rights

reserved.

Unauthorized

copying

and

distribution

violation

law.

SU-C800UM2

Contents

Page

Front Panel

Controls

.........cccsccssscerssecesereseeersencsseeee

nicdauidananctdea’.

Wiring

Connection

Diagram

......ussesssscssssessssesssscesssscseseestssstescstsenee

Operation

Check

and

Type

lilustration

IC's;

Transistors

and

Diodes

................:sseseeesese

Main

Component

Replacement

Procedures

...........:csscssecereeees

3,4

ERMC

DUST

55s

sesscincsttance

Gicivceves

Sevcrienennvicandonsannaiavenstrapsdsbncalnats

Supply

Power

Source

.0......

ccc

cesessesseeessseesereesereesneeeseecentesestassatens

Replacement

Parts

List

(Electrical)

.........ccsscsvsstscssscesserrsnersenees

15,16

Terminal

Function

IC'S

00...

cecesccnssecseseeseeeessesecseeeecevseeneneeacanenteenes

Replacement

Parts

List

(Cabinet)

............:.ccsscssssesssseeseessessesersaesneeee

Schematic

Diagram

«oo...

escsescsssessencsncssssessevesseceesessesseceeaesessesees

6-10

Replacement

Parts

List

(Resistors

and

Capacitors)...

Printed

Circuit

Board

Diagram

......

aat

aOR

eee

11,

Cabinet

Parts

Location

.0.........ccccscccccssceccnsccueeccessecsesesusnccesenssanensauanees

NOTE:

Refer

the

service

manual

for

Model

No.

SE-A900SM2

(ORDER

No.

AD9707099C2)

SE-A800SM2

(ORDER

No.

AD9707098C2)

for

information

“Accessories”,

“Connections”

and

“Packaging”.

Front

Panel

Controls

Power

“STANDBY

/ON”

switch

(POWER,

STANDBY

(ty

ON)

Press

switch

the

unit

from

standby

mode

vice

versa.

standby

mode,

the

unit

still

consuming

small

amount

power,

The

control

amplifier

switches

between

and

the

standby

mode

only

the

power

amplifier

POWER

switch

the

“=

ON’

position.

Input

selector/indicators

(SELECTOR)

@®

Muting

indicator

(MUTING)

—

Tone

contro!

button

(TONE)

Tone

controis

(BASS,

TREBLE)

Volume

control

(VOLUME)

“STANDBY”

indicator

(STANDBY)

When

the

power

ampiifier

POWER

switch

is in

the

“

ON”

position,

this

indicator

lights

standby

mode

and

goes

out

when

the

unit

turned

on.

Remote

control

signal

sensor

(SENSOR)

Tape-monitor

button/indicators

(TAPE

MONITOR)

“ADVANCED

VIRTUAL

BATTERY

OPERATION”

indicator

Balance

control

(BALANCE)

SU-C800UM2

Operation

Check

and

Main

Component

Replacement

Procedures

This

section

describes

procedures

for

checking

the

operation

the

major

printed

circuit

boards

and

replacing

the

main

components.

For

reassembly

after

operation

checks

replacement,

reverse

the

respective

procedures.

Special

reassembly

procedures

are

described

only

when

required.

Checking

for

the

operation

P.C.B.

and

main

P.C.B.

Remove

the

top

cabinet.

Operation

P.C.B.

Check

the

operation

P.C.B.

this

condition.

GND

plate

Connect

the

lead

wire.

Main

P.C.B.

Remove

the

rear

panel.

SU-C800UM2

remove

each

P.C.B.

Foliow

the

GED

item

page

ane

(CN701)

Connector

Gaz

(CN702A/B)

Remove

the

front

’

‘

Connector

panel

ass’y.

(CN301A/B)

Remove

the

connectors.

Connector

(CN203)

Connector

(CN201)

Connector

eens)

Pull

out

the

Pull

out

the

bass

knob

and

balance

knob.

treble

knob.

Remove

the

selector

knob

and

nut.

ower

switch

P.C.B,

Operation

P.C.B.

Remove

the

volume

—

knob

and

nut.

Remove

the

tone

P.C,B:

Remove

the

baijance

level

P.C.B..

Remove

the

volume

P.C.B..

ech

aoe

switch

P.C.B..

su-ceooum2_

Supply

Power

Source

This

unit

SU-C800UM2

designed

operate

power

supplied

from

the

Power

Amplifier

SE-A900SM2

SE-

A800SM2.

When

operating

the

unit

SU-C800UM2

alone

for

testing

and

servicing,

without

having

power

supplied

from

the

Power

Amplifier

SE-A900SM2

SE-A800SM2,

use

the

following

method.

Power

Supply

Main

Circuit

Apply

power

the

section

between

the

point[TP1]and

the

point[TP2].

Connect

the

+12

+15

(more

than

0.1

the

point[TP5],

and

the[GND]terminal

the

point[TP4]using

the

power

supply.

Connect

the

-12

-15

(more

than

0.1

the

point[TP3},

and

the

GND

terminal

the

point[TP4]using

the

power

supply.

Operation

Check

1,input

signal

kHz,

100

mV)

the

each

line-in

terminal.

Connect

the

oscilloscope

the

speaker

with

the

built-in

amplifier

the

PRE

OUT

terminals

and

check

the

signals

are

outputting

from

this

unit.

power

supply

{+DC12

£15

than

0.1

PRE

OUT

Terminals

TAPE

PLAY

(IN)

TAPE

PLAY

(IN)

AUX

TUNER

cite

PRE

OUT

Terminals

(Main

P.C.B.)

Fig.

SU-C800UM2

Terminal

Function

IC's

1C701.(M37470M2362S)

Name

[soma

[RRSP

Orr

Fer

RTE

RTS

exaoe

[ee

aur

eee

[sees

[secon

saeco

[

vroown

eran

seroma

vounesom)

vaur

[vooraiesmnomucoune

[rome

[aos

mang

soriouon

Fie

owrives

freun

omesioond

revo

[Paweranonaa

Tener

onion

sar

Pia

[

Aswad

[pier

awn

S509

arto

Input

select

LED

drive

signal

output

Connect

the

ceramic

osciliator

[ie

[exw

—

[comer

Schematic

Diagram

MAIN

CIRCUIT

occ

ccccsssssesneesnnnetneen

[E]

TONE

SWITCH

CIRCUIT...............

eee

VOLUME

CIRCUIT.

ccecsecsccssssssctntsseneenen

PB]

BALANCE

CIRCUIT

cccccssssseu

POWER

SWITCH

CIRCUIT

000.

ecccccccccee

OPERATION

CIRCUIT

oo.

csccscscssssessseinen

[om

[ve[

Fen

Name

faz

[voc

[rowersmvean

fis

[

veset

[oiensctsotnoe

Pie

[enor

[Powertatresecsenainot

[20

[

Rencon

[Reneicorctsmrinet

far

[eanwe

[nesencomeceono

[os

|cnpsomtserainpu

Comte

sno)

fas

wri

[manele

ame

smo

Pax

snceie0

[soveetz0

Cet

aero

Fas

Trauizo

[tepe2

Coranesersionna

[wasn

[reer

neecwmmns

aioe

fae

earar

far

ortay

[peaynescnown

[

pwnecy

[rowercowoiserwoue

Not

used,

connect

GND

This

schematic

diagram

may

modified

any

time

with

the

development

new

technology.

Notes:

$301

Tone

control

switch

(TONE

BL:DEFEAT,

.m:ON)

$801

Power

“STANDBY

/ON”

switch

(POWER,

STANDBY

ru)

/ON)

$802

Tape

monitor

switch

(TAPE

MONITOR)

$804

Input

select

switch

(SELECTOR)

@VR201

Volume

control

(VOLUME)

@®VR202_

Balance

control

(BALANCE)

VR301

Tone

control

(BASS)

@VR302

Tone

control

(TREBLE)

Indicated

voltage

values

are

the

standard

values

for

the

unit

measured

the

electronic

circuit

tester

(high-impedance)

with

the

chassis

taken

standard.

Therefore,

there

may

exist

some

errors

the

voltage

values,

depending

the

internal

impedance

the

circuit

tester.

mark:

Power

Voltage

and

signal

line

Phono

Signal

(L-ch)

Line

=—-

Rec

Out

Signal

(L-ch)

Line

auupee

;

Positive

Voltage

Line

ssenPeres

Negative

Voltage

Line

Important

safety

notice:

Components

identified

mark

have

special

characteristics

important

for

safety.

Furthermore,

special

parts

which

have

purposes

fire-retardant

(resistors),

high-quality

sound

(capacitors),

low-noise

(resistors),

etc.

are

used.

When

replacing

any

components,

sure

use

only

manufacturer's

specified

paris

shown

the

parts

list.

Caution!

and

LSI

are

sensitive

static

electricity.

Secondary

trouble

can

prevented

taking

care

during

repair.

Cover

the

parts

boxes

made

plastics

with

aluminum

foil.

Ground

the

soldering

iron.

Put

conductive

mat

the

work

table.

not

touch

the

legs

LS!

with

the

fingers

directly.

SU-C800UM2

MAIN

CIRCUIT

(P.C.Board:on

page

12)

PHONO

SIGNAL(Lch)

E201

JK202

Ach

aah

TUNER

C201

100P,

A201

Leh

ale

JK202

R204

Loh

JK203

R208

Rech

rs)

400P

C203

12k

C206

100P

100P,

is]

AUX

R205

tch

alt

JK203

Ress

206

100P,

Reh

REC(OUT)

R207

Leh

TAPE2

uK204|

ATO

Rech

(iis

aie

PLAY

(IN)

Bee

‘Leh

ee)

sk204

Rete

Rch

REC(OUT)

exe:

Leh

(©

TAPE!

jogs

Rech

PLAYIN)

R213

SES

Lch

JK205

L303

Led

bch

(Oxy

—

PRE OUT

ong}

10.

L310

;

bet

=§

C116

Oti4

0.022

6g00P

C104.

Bet

Ri28

Ctis

R192

§0V47

oe]+

GR"

faoe

q2e

ava7

C124

aay

est

&®

-14.6Viov

AN6S58F

PHONO

AMP

R101

REG

OUT

SIGNAL(Lch)

1201

cDOUOrR

7C9163N

SEE

Oem

(dm

pol

Jov

IC202

TCS9164N

INPUT

SELECTOR

14.5

SU-C800UM2

Phono

Signal

(L-ch)

Line

mum

Rec

Out

Signal

(L-ch)

Line

mapas

POSitive

Voltage

Line

seen

peeese

;

Negative

Voltage

Line

TONE

SWITCH

CIRCUIT

{P.C.Board:on

page

11}

C319

Catt

2200P

14.5

39P

oat

L303

CNSOIA

W301

‘8

Ba]

o—O

aXe

ORS

tee

ars

wife

14,1V

ASB

SS),

ares

2SA933QRSTA

MUTING

CONT.

4.6

351,352

£e

2SC3327ABTP

MUTING

L304

Syay

BA6218

MOTOR

DRIVE(VOLUME)

Q202

DTA124ESTP

RELAY

DRIVE

vR202

STOS

Ne,

kis

38x

(VOLUME)

Fey

VOLUME

CIRCUIT

BALANCE

Nooo

ert

(P.C,

Board:on

page

11)

CIRCUIT

(P.C.Board:on

page

11)

pao

tae

22K

im——-—--

Q201

DTC1t4YSTP

RELAY

DRIVE

(1)

Lot

feng

ala

Hoon,

SWITCH

CIRCUIT

OPERATION

CIRCUIT

Sepsis

(P.C.Board:on

page

11)

SU-C800UM2

MAIN

CIRCUIT

(P.c.Board:on

page

12)

13.4V

5§

Q623

fee

OTA124ESTP

RELAY

DRIVE

13.4

ae,

Q622

‘DTCG114YSTP

RELAY

DRIVE

‘R301

100K(C)

i=}

5.1V

DEFGHIJIK

;

D610,813

p911,812

SLR-305vC

SLR-305DC

A823

100K

Treas

east

——-Te7aHca2ap

De13

(STANDBY)

5.1

Veni

SU-C800UM2

Phono

Signal

(L-ch)

Line

sump

Rec

Out

Signal

(L-ch)

Line

amma

Positive

Voltage

Line

sana

penne

;

Negative

Voltage

Line

Q710

Q703,704

DET.

D710

R713

als

DTC114YSTP

MAIGSTA

"1K

LED

DRIVE

Q702

DTC114TSTP

POWER

ON/OFF

DET.

'ss2a1Ta

GED

mCP

*§*

=»

&®

Boe

gcrg

&§

-E

&€§

2.2

701

P-P

DTC114ESTP

-“N

RESET

F=4MHz

S9PfF

@@ae

I¢70%

(345)

M37470M2362S

MICRO

COMPUTER

Terminal

guide:

page

A724

eee

(S)

R707

100K

A708

100K

F=4MHz

#sa

RB?

R703

10K

D703

B A

[<4

Q601,602

DTA124ESTP

46)

POWER

SUPPLY

(+15V)

14.6V

‘

Q601

ast

14.7¥

MA165TA

aQ602

POWER

POINT

ee)

TPa

-14.6V

(Sots

Asjawio

S$)

DTCt44ESTP

POWER

SUPPLY

5.1V

AIc601

MSF78MO5L

REGULATOR

MAI67TA

JKeO1

LOGIC

GND

Lenz

(6}

POWER

ON/OFF

16031uH!

}

(5)

+B/VIRTUAL

SE-AS00SM2:

16041

2H}

}

JK791

coetiteen

©.

PRE

GND

(on

page

16)

pod

SE-A800SM2:

QUT

GND

ame

Feter

)

-BMIRTUAL

aoa

13)

BACKUP

(on

page

15)

Axwoo7

pH!

BACKUP

POWER

SUPPLY

POINT

Gé58

;

0.01

see

c7o0q

yoo0P

Cé57

Le]

—-10—

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