Technics QUARTZ SA-R177 Manuel utilisateur

ORDER

NO.

AD8907222C3

Service

Manual

Receiver

CYUARTZ

Synthesizer

A-

AM/FM

Stereo

Receiver

Color

(K)...

Black

Type

Area

Country

(gn)

SPECIFICATIONS.

nin

500)

AMPLIFIER

SECTION

Power

output

Headphones

output

level

and

impedance

430

mV/330

DIN

1kHz

50W(8Q)

Load

impedance

Hz~

kHz

continuous

power

output

AorB

8O~160

both

channels

driven

40W(8Q)

and

Q~16

Total

harmonic

distortion

rated

power

Hz~

kHz

0.3

TUNER

SECTION

half

power

kHz

0.07

Frequency

range

87.50

108.00

MHz

intermodulation

distortion

Sensitivity

rated

power

Hz:

kHz=

4:1,

SMPTE,

0.5%

SIN

1.5

(75

Power

bandwidth

SIN

1.3

(75

both

channels

driven,

—3

Hz~40

kHz

SIN

1.2

(75

Damping

factor

(8Q)

IHF

usable

sensitivity

1.5

(IHF'58,

pclae

and

impedance

ileres

IHF

stereo

quieting

sensitivity

pV/75

mv/4

CD,

VCR

TAPE/VCR

200

mV/22

ste

eri

almontion

soe

PHONO

maximum

input

voltage

kHz,

RMS)

150

STEREO

SIN

Sin

rated

power

(8Q)

MONO

(75

dB,

!HF)

PHONO

(IHF,

dB)

STEREO

(7!

dB,

IHF)

Seatac

SO/GE

(IRIE

Oe)

Frequency

response

Hz~15

kHz,

~—-2

PHONO

RIAA

standard

curve

lee

tiled

selectivity

+0.8

(30

Hz~

kHz)

;

CD,

VCR

TAPEIVCR

Hz~70

kHz

(+3

dB)

Ermeceeaieeue

band

graphic

equalizer

Hz,

—10

dB~

+10

Spurious

response

rejection

MHz

eae

eupresion

Stereo

separation

kHz,

—10

dB~

+10

kHz

12.5

kHz,

-10

d(B~+10

kHz

Loudness

control

(volume

at—30

dB)

Hz,

Carrier

leak

Output

voltage

—30

(—3§

dB,

IHF

VCR

TAPEIVCR

REC

OUT

200

ante

ero

dG.

Channel

balance,

250

Hz~6,300

Channel

balance

(250

Hz~

6,300

Hz)

+1.5

Channel

separation

Limiting

point

1.2

echnics

Matsushita

Electric

Industrial

Co.,

Ltd.

Central

P.O.

Box

288,

Osaka

530-91,

Japan

SA-R177

Bandwidth

GENERAL

amplifier

180

kHz

demodulator

1000

kHz

Antenna

terminals

(unbalanced)

For

Oceania

Hz/60

Hz,

240

For

Third

Region

Hz/60

Hz,

110

V/127

V/220

V/240

TUNER

SECTION

Danenstons:(WHtx:P)

430

114

300

Frequency

range

522

kHz~

1611

kHz

(9-kHz

steps)

Weight

cou

530

kHz

1620

kHz

(10-kHz

steps)

(13:90)

Sensitivity

(S/N

dB)

pV,

330

pV/m

Selectivity

999

kHz

Note:

Image

rejection

999

kHz

Total

harmonic

distortion

measured

the

digital

spectrum

rejection

(at

999

kHz)

analyzer.

CONTENTS

Page

CONNECTIONS

EQUIPMENT

............00e

eeee

BLOCK

DIAGRAM

.........

000

ence

eee

BEFORE

USE

teers

INTERNAL

CONNECTION

FL...

2...

eee

REMOTE

CONTROL

OPERATION

...........0

eee

SCHEMATIC

DIAGRAM

........0

eee

ACCESSORIES

0...

eee

PRINTED

CIRCUIT

BOARDS

.......

2205

enae

FRONT

PANEL

CONTROLS

AND

FUNCTIONS.........

4,5

WIRING

CONNECTION

DIAGRAM

..........-.0.

e002

DISASSEMBLY

INSTRUCTIONS

............--e+005

6~9

EXPLODED

VIEW...

1...

cer

ener

eens

one

33,

PROTECTION

CIRCUITRY

0...

cee

eee

tee

REPLACEMENT

PARTS

LIST

........-

0000

BEFORE

REPAIR

...

20...

eee

EXPLODED

VIEW...

eee

wees

MEASUREMENTS

AND

ADJUSTMENTS

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

10,

RESISTORS

CAPACITORS

..........2-

00 ee

ueee

39,

TERMINAL

FUCTION

IC...

eee

CONNECTIONS

EQUIPMENT

Antenna

connection

terminals

Speaker

connection

terminals

“GND”

terminal

Voltage

selector

(For

(G)

area

only.)

~AC

REMOTE

CONTROL

OUT

TAPE

OUT

BACK{}oUT

BACK

socket(

IN)

“PHONO”

terminals

(about

150pF)

Remote-control

tape

tersninal

(Connect

tape

deck.)

Remote-control

terminal

“TAPE/VCR

2”

terminals

(Connect

tape

deck

and/or

conmpact

disc

player.)

“VCR

1”

terminals

“CD”

terminals

;

Phono

input

capacitance

about

140pF.

BEFORE

USE

sure

disconnect

the

mains

cord

before

adjusting

the

voltage

selector.

Use

minus

(—)

screwdriver

set

the

voltage

selector

(on

the

rear

panel)

the

voltage

setting

for

the

area

which

the

unit

will

used.

REMOTE-CONTROL

OPERATION

Tuner

controls

play

Compact

disc

player

controls

Ped

ShID

dor

ACCESSORIES

loop

antenna

(1)

(SPB1162T)

indoor

antenna

(1)

(SSA269M)

Screws

(2)

(XTN3+10AFZ)

®Remote-control

transmitter

(1)

(EUR64747)

®@

Flat

cable

for

remote-controi

(1)

(SWKST11M—1)

‘FM

preset

tuning

Pplay

Bye

Use

See

Techni

Remote

Controt

Transmitter

System

SA-R177

(If

the

power

supply

your

area

117

120

set

the

“127

position.)

Note

that

this

unit

will

seriously

damaged

this

setting

not

made

correctly.

(There

voltage

selector

for

some

countries;

the

correct

voitage

already

set.)

Amplifier

controls

eck

Bstoc

sMoause

Cassette

deck

controls

Gise

Disc

number

controls

ferries

antenna

holders

(2)

(SMA233—1M)

(SMA231M)

power

supply

cord

(1)

(RJA0004)

(SJA173)

Connection

cable

for

remote-control

(1)

(SJP2257T)

Batteries

(2)

(UM-4NEP/2S)

SA-R177

FRONT

PANEL

CONTROLS

AND

FUNCTIONS

Tuner

section

[1]

Power

switch

(power)

[2]

stereo

indicator

(FM

stereo)

This

indicator

automatically

illuminates

when

stereo

broadcast

being

received.

Note:

will

not

illuminate

the

mode

selector

set

the

monaural

mode.

[3]

Remote-control

signal

receptor

(remote

sensor)

Receives

the

signals

from

the

remote-control

transmitter.

[4]

Band

selectors

(band

selector)

FM:

Press

this

button

listen

broadcast.

AM:

Press

this

button

listen

broadcast.

allocation:

When

the

button

pressed

for

about

seconds,

the

frequency

step

will

change

kHz

per

step. (This

unit

set

kHz

before

shipment.)

order

return

the

original

frequency

indications,

press

this

button

for

about

seconds

again.

[5]

Preset

channel

matrix

display

(tuner

matrix)

When

entry

made

the

memory,

the

figure’s

outer

frame

illuminates.

The

outer

frame

the

“channel”

continuously.

now

being

received

flashes

[6]

Band

indicators

(AM/FM)

Indicates

the

selected

band.

Memory

indicator

(memory)

This

indicator

illuminates

when

the

memory

button

pressed.

[8]Audio

input

selector/frequency

display

(input

selector/frequency)

Displays

the

selected

source

broadcast

frequency.

Geers

Pero

[9]

Quartz-lock

indicator

(quartz

lock)

This

indicator

illuminates

when

the

unit

tuned

precisely

broadcast

station.

Memory

button

(memory)

This

button

used

when

presetting

broadcast

station

frequen-

cies

into

memory.

[11]

Group

registration

buttons

(group)

These

buttons

are

used

assign

memory

presets

the

desired

group

select

the

desired

group.

[12]

Music-scan/group-search

button

(-M.

scan/—

group

search)

This

button

used

scan

the

memory

presets

within

group

(for

about

three

seconds

each)

for

the

desired

group.

[13]

Preset-tuning

buttons

(1—0)

(24

channel

random

preset

tuning)

These

buttons

are

used

preset

broadcast

frequencies

into

the

memory

this

unit,

and

recall

the

desired

Preset

sta-

tions.

[14]

Tuning

buttons

(tuning)

These

buttons

are

used

for

tuning

the

desired

broadcast

station.

the

button

pressed

momentarily

and

then

releas-

ed,

the

frequency

will

change

intervals

0.05

for

and

kHz

(or

kHz)

for

AM.

fis]

mode

selector

(FM

mode)

This

unit

automatically

switches

the

stereo

medé

when

stereo

broadcast

received.

This

selector

used

select

the

mode

(stereo

monaural)

FNM

broadcast

signals.

SA-R177

Amplifier

section

macie

band

elector

merary

oxen

nana

Ceamoe

anon

OC)

Cra

(CEEEREr

hes

[1]

Speaker

selectors

(speakers)

These

selectors

are

used

select

the

speaker

system(s)

and/or

B).

(2]

Tape

indicator

(TAPE)

This

indicator

will

illuminate

when

the

tape-monitor

switch

pressed.

[3]

Muting

indicator

(muting)

This

indicator

will

illuminate

when

the

muting

button

(on

the

remote-control

transmitter)

pressed.

cancel

the

muting

function

without

using

the

remote-con-

trol

transmitter,

press

and

hold

the

“phono”

input

selector

this

unit

for

about

seconds.

Note:

The

unit

will

switch

the

phono

mode.

[4]

Loudness

indicator

(loudness)

This

indicator

will

ituminate

when

the

loudness

button

pressed.

[5]

Equalization

controls

(graphic

equalizer)

These

controls

are

used

adjust

the

levels

within

each

fre-

quency

band.

The

levels

can

varied

over

range

+10

dB~—-10

dB.

[6]

Volume

control/indicator

(volume)

[7]

Balance

control

(balance)

[8]Input

selector

buttons

(phono/tuner/CD/tape

monitor/VCR

These

buttons

are

used

select

the

sound

source

heard,

such

disc,

radio

broadcasts,

etc.

The

selected

sound

source

shown

on the

audio

input

selector/frequency

display.

(VCR1,

tape

monitor/VCR2,

CD,

tuner,

phono)

[9]

Tape-monitor/VCR

switch

Press

this

button

listen

tape

second

VCR.

other

source

selected

input

selector

can

heard

while

the

tape

indicator

illuminated.

listen

some

other

source,

press

this

switch

once

again.

(10|Loudness

switch

(loudness)

Set

the

“on”

position

(the

loudness

indicator

will

il-

luminate);

when

listening

music

low

volume.

Auditory

perception

sound

the

low

frequency

range

falls

off

low

volume,

but

when

the

switch

this

position,

this

deficiency

compensated

for,

that

the

full

impact

the

musical

per-

formance

can

enjoyed.

Headphone

jack

(phones)

SA-R177

DISASSEMBLY

INSTRUCTIONS

“ATTENTION

SERVICER”

Some

chassis

components

may

have

sharp

edges.

careful

when

disassembling

and

servicing.

Removal

the

cabinet

Raa

Removal

the

front

panel

Procedure

Remove

the

screws

(Q@~

@).

pees

Remove

the

screw

(

@).

Remove

the

connector

(J705).

Remove

the

flat

cables

(J502,

J604,

J605).

Cabinet

Remove

the

volume

knob

and

nut.

Remove

the

screws

(Q@~@).

Pull

out

the

front

panel

the

direction

the

arrow.

Removal

the

power

switch

P.C.B.,

speaker

switch

headphones

jack

P.C.B.

and

power

source

P.C.B.

Ref.

No.

Procedure

Remove

the

screws

@).

Remove

the

speaker

switch

headphones

jack

P.C.B.

the

direction

the

arrow.

Front

panel

Removal

the

FL/graphic

equalizer

P.C.B.

Remove

the

screws

(@~

@).

Remove

the

FL/graphic

equalizer

the

direction

the

Speaker

switch

headphones

jack

P.C.B.

FL/graphic

equalizer

P.C.B.

Power

source

P.C.B.

SA-R177

Removal

the

operation

P.C.B.

Removal

the

balance

P.C.B.

Remove

the

screws

(

@).

Remove

the

balance

knob.

~>5

Remove

the

screw(

@).

Cellophane

tape

Ref.

No.

Procedure

1-7

Remove

the

connector

(J705).

Pull

out

the

volume

knob

the

direction

the

arrow.

Release

the

claws.

Volume

knob

Volume

knob

Pull

out

the

volume

P.C.B.

the

direction

the

arrow.

Procedure

12-2

Volume

P.C.B.

;

SA-R177

Ref.

No.

Removal

the

main

P.C.B.,

tuner

P.C.B.

and

speaker

terminal

P.C.B.

Procedure

+10

Remove

the

screws

(@~

@).

——

{~-

17)

Remove

the

tuner

P.C.B.

the

direction

the

arrow.

Speaker

terminal

P.C.B.

Remove

the

screw

(®

Remove

the

speaker

terminal

P.C.B.

the

direction

the

arrow,

How

check

the

main

P.C.B.

Remove

the

bottom

chassis.

Reinstall

the

power

transformer

the

rear

chassis.

Remove

the

screws

(Q@~@,

O~®)

Reinstall

the

front

panel

the

main

P.C.B.

above

figure.

Remove

the

volume

knob

and

nut.

Remove

the

front

panel.

Remove

the

screws

(@)

@).

Front

panel

Screws

SA-R177

Ref.

No.

anes

Removal

the

INLET

P.C.B.

Removal

the

power

Procedure

110

Release

the

claws.

1210

+12

Unsolder

the

power

IC.

Remove

the

screws

(@,

@).

INLET

P.C.B.

Unsolder

the

power

Note:

When

mounting

the

power

IC,

apply

silicon

terminal

compound

(SZZOL15)

the

rear

the

power

IC.

SA-R177

PROTECTION

CIRCUITRY

The

protection

circuitry

may

have

operated

either

the

following

conditions

noticed:

sound

heard

when

the

power

turned

on.

Sound

stops

during

performance.

The

function

this

circuitry

prevent

circuitry

damage

if,

for

example,

the

positive

and

negative

speaker

connection

wires

are

“shorted”,

speaker

systems

with

impedance

less

than

the

indicated

rated

impedance

the

amplifier

are

used.

BEFORE

REPAIR

this

occurs,

the

procedure

outlines

below:

Turn

off

the

power.

Determine

the

cause

the

problem

and

correct

it.

Turn

the

power

once

again

after

one

minute.

Note:

When

the

protection

circuitry

functions,

the

unit

will

not

operate

unless

the

power

first

turned

off

and

then

again.

(1)

Turn

off

the

power

supply.

Using

10Q,

resistor

connect

both

ends

power

supply

capacitors

(C701,

C702,

4700uF)

order

discharge

the

voitage.

(2)

Before

turning

the

power

supply

on,

after

completion

repair,

slowly

apply

the

primary

voltage

using

power

supply

voltage

controller

make

sure

that

the

consumed

current

50Hz/60Hz

SIGNAL

mode

should

shown

below

with

respect

supply

voltage

110V/127

V/220V/240V.

Power

supply

voltage

AC110V AC127V

AC220V

AC240V

Consumed

current

50/60Hz

170~470mA_

150

~450mA

~260mA

250mA

MEASUREMENTS

AND

ADJUSTMENTS

Note:

For

Z202

(AM-IFT),

and

Z201(AM

ANT

and

OSC

coil),

they

are

supplied

adjusted

parts.

So,

not

turn

the

cores

the

parts.

It is

not

necessary

adjust

the

circuit.

ADJUSTMENT

POINTS

MONO

DISTORTION

coil

—

VR301

MPX

VCO

Adj.

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