Technics QUARTZ SA-R330 Manuale utente

ORDER

NO.

AD8807200C2

Service

Manual

CQUARTZ

Synthesizer

AM/FM

Stereo

Receiver

SPECIFICATIONS

(DIN

45

500)

AMPLIFIER

SECTION

Power

output

DIN

1kHz

2x

70W

(8Q)

20Hz~20kHz

continuous

power

output

both

channels

driven

2x

60W

(8Q)

Total

harmonic

distortion

rated

power

at

20Hz~20kHz

0.008%

(8Q)

half

power

at

1kHz

0.003%

(8Q)

intermodulation

distortion

rated

power

at

60Hz:

7kHz=4:

1,

SMPTE,

80

0.5%

Power

bandwidth

both

channels

driven,

—3dB

10H2~40kHz

(89)

Damping

factor

20

(8Q)

Input

sensitivity

and

Impedance

PHONO

3mV/47kQ

CD,

VCR

1,

TAPE/VCR

2

200mV/22kQ

PHONO

maximum

Input

voltage

(1kHz,

RMS)

150mV

SIN

rated

power

(82)

PHONO

70d8B

(IHF,

A:

80dB)

CD,

VCR

1,

TAPE/VCR

2

Frequency

response

PHONO

RIAA

standard

curve

+0.8dB

(30

Hz~15kHz)

7HZ~70kHz

(+3dB)

63Hz,

—10dB~+10dB

160Hz,

—10dB~+10dB

400Hz,

—10dB~+10dB

1kHz,

—10dB~+10dB

2.5kHz,

~10dB~+10dB

6.3kHz,

—10dB~

+10dB

12.5kHz,

—10dB~+10dB

Technics

80dB

(IHF,

A:

90dB)

CD,

VCR

1,

TAPE/VCR

2

7

band

graphic

equalizer

Receiver

SA-R330

Color

(K)...Black

Type

Area

[color

[Awe

(EG)

F.R.

Germany.

Loudness

control

(volume

at

—30dB)

50

Hz,

+9dB

Output

voltage

VCR

1,

TAPE/VCR

2

REC

OUT

200mV

Channel

balance,

250

Hz~6,300

Hz

+1dB

Channel

separation

§5dB

Headphones

output

level

and

impedance

51OmvV/3300

Load

impedance

MAIN

or

REMOTE

4Q~160

MAIN

and

REMOTE

8Q~16Q

@

FM

TUNER

SECTION

Frequency

range

87.50~1

08.00

MHz

Sensitivity

S/N

30dB

1.5pV

(75Q)

S/N

26dB

1.3yV

(75Q)

SIN

20dB

{.2uV

(75Q)

IHF

usable

sensitivity

1.5uV

(IHF

58,

750)

IHF

46dB

stereo

quieting

sensitivity

22uV/75Q

Total

harmonic

distortion

MONO

0.2%

STEREO

0.3%

SIN

MONO

60dB

7

54B,

IHF)

STEREO

58dB

(7

14B,

IHF)

Frequency

response

20Hz~15kHz,

+1d

B~—2dB

Alternate

channel

selectivity

+

40(KHz,

65dB

Capture

ratio

1.0dB

Image

rejection

at

98

MHz

40dB

IF

rejection

at

98

MHz

70dB

Spurious

response

rejection

at

98

MHz

70dB

AM

suppression

50dB

Matsushita

Electric

Industrial

Co.,

Ltd.

Central

P.O.

Box

288,

Osaka

53)-91,

Japan

SA-R330

Stereo

separation

1kHz

40dB

@

GENERAL

10kHz

30dB

Cartier

leak

19kHz

—60dB

(—6548,

IHF)

Power

Consunpyon

a40W

Power

supply

AC

50H2/60Hz,

220V

s8kH2

—T00B

(=

7508,

INF)

Dimensions

(W

x

H

x

D)

430

x

102

290

Channel

balance

(250

Hz~6,300

Hz)

+1.50dB

eee

s

mm

(16-15/16"

x

4”

x

14-1/4")

Limiting

point

1.2pV

Weight

6.7

kg

(14.81b.)

Bandwidth

9

.7kg

(14.8Ib.

IF

amplifier

180

kHz

witex:

FM

demodulator

1000

kHz

oles

1.

Specifications

are

subject

to

change

without

notice.

Weight

and

dimensions

are

approximate.

2.

Total

harmonic

distortion

is

measured

by

the

digital

spectrum

analyzer

(H.P.

3045

system).

Antenna

terminals

75Q

(unbalanced)

WAM

TUNER

SECTION

Frequency

range

§22~1611kHz

(9kHz-steps)

530~1620kHz

(10kHz-steps)

Sensitivity

(S/N

20dB)

20uV,

330nV/m

Selectivity

at

999kHz

55dB

Image

rejection

at

999kHz

40dB

(IF

rejection

at

999kHz

§5dB

Mm

CONTENTS

Page

ACCESSORIES

si

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2

BLOCK

DIAGRAN

........scccsssccssscscserersersnsensrsrsescenstnonsces

22~24

LOCATION

OF

CONTROLS...

~

3~5

DESCRIPTION

OF

FLUORESCENT

DISPLAY.............00.0+

25

CONNECTIONS.

........ccccssecceene

.

6,7

TERMINAL

GUIDE

OF

IC’S,

PROTECTION

CIRCUITRY...

vee

7

TRANSISTORS

AND

DIODES.......

BEFORE

REPAIR

AND

ADJUSTMENT..

ae

7

PRINTED

CIRCUIT

BOARDG................

DISASSEMBLY

INSTRUCTIONG................

--

B~10

WIRING

CONNECTION

DIAGRAM

.

MEASUREMENTS

AND

ADJUSTMENTS

.....

+

11,

12

SCHEMATIC

DIAGRAM

..........scsscsssecssseseccssentecerseaenensee

FUNCTION

OF

TERMINAL

..........sscssssrssersesrsseesnserseeseces

13,

14

CABINET

PARTS

LOCATION

...........:scccssscsssssssseessneeneses

RESISTORS

&

CAPACITORS

........sssssssssstonessntersearenes

15~17

REPLACEMENT

PARTS

LIST

..........scsrscereee

REPLACEMENT

PARTS

LIST

.......ssccssscssssssosssseseesrecorene

18,

19

REMOTE-CONTROL

PARTS

LOCATION...

eaeee

42

SCHEMATIC

DIAGRAM

OF

REPLACEMENT

PARTS

LIST

........sssscscssssesssrsensnenereosseneees

42

REMOTE-CONTROL

TRANSMITTER

...........20:0000

20,

21

Mi

ACCESSORIES

*

FM

indoor

antenna

(1)

©

AM

loop

antenna

(1)

¢

AM

antenna

holders

(2)

¢

Screws

(2)

(SSA270M)

(SPB1162T)

(A)

ear

&

S&S

(SMA233-1M)

(SMA231M)

(XTN3+

10AFZ)

¢

Connection

cable

for

remote-control

(1)

¢

Flat

cable

for

remote-control

(1)

¢

Remote-control

©

Batteries

(2)

(SJP2257T)

(SWKST11M-1),

transmitter

(1)

(UM-4NE/28)

(EUR64758)

Mi

LOCATION

OF

CONTROLS

Amplifier

section

Muting

Indicator

(muting)

Loudness

indicator

(loudness)

This

indicator

will

illuminate

when

the

muting

button

(on

the

remote-control

transmitter

only)

is

pressed.

To

cancel

the

muting

function

without

using

the

remote-con-

trol

transmitter,

press

and

hold

the

‘‘phono”

input

selector

of

this

unit.

Spectrum

analyzer

display

(spectrum

analyzer)

Tape

indicator

memory

(TAPE)

HNSHNES

°

Power

“standby

¢),

on”

Equalizer

controls

(graphic

equalizer)

switch

These

controls

are

used

to

adjust

the

levels

within

each

frequency

band.

The

levels

can

be

(power

“standby

,

on”)

varied

continuously

over

a

range

of

+10

dB~

—10

aB.

By

sliding

the

controls

at

each

of

the

This

switch

switches

ON

and

OFF

indicated

frequencies

in

the

“+”

direction,

the

frequencies

in

that

band

are

boosted,

and

by

the

secondary

circuit

power

only.

sliding

them

in

the

“—"

direction,

the

frequencies

in

that

band

are

attenuated.

2.

:

The

unit

is in

the

“standby”

condi-

When

the

power

switch

is

set

to

the

“on”

position,

the

tips

of

these

level

controls

will

illuminate.

tion

when

this

switch

is

set

to

the

“standby

6"

position.

Regardless

of

the

switch

setting,

the

primary

circuit

is

always

“live”

as

long

as

the

power

cord

is

connected

to

an

electrical

outlet.

Remote-control

signal

sensor

(remote

sensor)

Loudness

switch

(loudness)

Set

to

the

“on”

position

(The

loudness

indicator

will

il-

ltuminate.)

when

listening

to

music

at

low

volume.

Auditory

perception

of

sound

in

the

low

frequency

range

falls

off

at

low

volume

but

when

the

switch

is

in

this

position,

this

deficiency

is

compensated

for,

so

that

the

full

impact

of

the

musical

per-

formance

can

be enjoyed.

Balance

control

(balance)

,

Volume-control/indicator

(volume)

The

indicator

will

move

in

accor-

dance

with

the

volume

level.

“standby

(|)

”

indicator

This

indicator

will

illuminate

when

the

unit

is

switched

to

the

standby

condition

by

the

power

“standby

&

Jon”

switch

on

the

unit

or

the

ON/OFF

switch

on

the

remote-control

transmitter.

Headphones

jack

(phones)

Speaker

selectors

(speakers)

These

selectors

are

used

to

switch

the

speaker

systems

ON

and

OFF.

Input

selectors

(input

selector)

These

selectors

are

used

to

select

the

sound

source

to

be

heard,

such

as

a

disc,

radio

broadcast,

etc.

The

selected

sound

is

shown

on

the

audio

input

selector/frequency

display.

Tape-monitor

switch

(monitor)

Press

this

button

to

listen

to

tape.

No

other

sources

selected

by

the

input

selector

can

be

heard

while

the

tape

indicator

is

illuminated.

To

listen

to

some

other

source,

press

this

button

once

again.

SA-R330

Tuner

section

Audio

input

selector/frequency

display

(audio

input

selector/frequency)

FM

stereo

indicator

(stereo)

This

indicator

automatically

illuminates

when

an

FM

stereo

broadcast

is

being

received.

Note:

It

will

not

illuminate

if

the

FM

mode

selector

is

pressed.

Memory

indicator

(memory)

This

indicator

illuminates

when

the

memory

button

is

pressed.

Quartz-lock

indicator

(quartz

lock)

This

indicator

iNuminates

when

tuned

1

2

3

4

5

6

7

8]

jmemory|

Preset

channel

9]

fo}

bo)

2}

(5)

[4)

(5)

6

|

Hesiliis

OMNIS

S

. .

FM

MHz

7}

118}

$19}

j20)

}21)

[22] |23)

j24

;

matrix

display

fs

precisely

to

an

FM

or

tuner

matrix

beta

[muting]

|loudness]

|

quartz

tock

(tuner

matrix)

AM

station.

FM

mode

selector

(FM

mode)

This

unit

automatically

switches

to

the

stereo

mode

when

a

stereo

broadcast

is

received.

Press

this

selector

to

listen

in

the

monaural

mode.

The

stereo

indicator

will

not

illuminate

in

the

monaural

mode.

Memory

button

(memory)

This

button

is

used

when

preset

memory

setting

of

the

preset-tuning

buttons

is

made.

Preset

tuning

buttons

(1

~

0)

(24

channel

random

preset

tuning)

These

buttons

are

used

to

preset

FM

and

AM

broadcast

frequen-

cies

into

the

memory

of

this

unit,

and

are

also

pressed

to

select

the

desired

preset

frequencies.

Note:

The

buttons

marked

[3]

~

[6]

are

also

used

to

listen

to

radio

broad-

casts

arranged

in

convenient

groups.

Group

select

button

(select)

Assort-mode

select

button

(assort)

Change-mode

select

button

(change)

Character-input/tuning

buttons

(character/tuning)

Memory-scan/group-search

button

(-M.

scan/—group

search)

Band

selectors

(band

selector)

FM

-AM

FM:

Press

this

button

to

listen

to

an

FM

broadcast.

AM:

Press

this

button

to

listen

to

an

AM

broadcast.

allocation:

When

the

AM

button

is

pressed

for

about

4

seconds,

the

AM

frequency

step

will

change

to

10

kHz

per

step.

(This

step

is

set

to

9

kHz

before

shipment.)

In

order

to

return

to

the

original

frequency

indication,

press

this

button

for

about

4

seconds

again.

SA-R330

*

Remote-control

transmitter

(EUR64758)

on/off

3

muting

Vvolume

&

Amplifier

controls

Power

button

Tuner

controls

Cassette

deck

controls

Compact

disc

player

controls

Remote

Control

Transmitter

EUR64758

WNotes

concerning

use

of

dry

batteries

©

Do

not

use

chargeable

batteries

(Ni-Cd

type).

¢

Be

sure

the

batteries

are

inserted

so

that

the

positive

(+)

and

negative

(—)

polarities

are

correct.

Batteries

install-

ed

with

incorrect

polarities

may

leak

and

damage

the

remote-control

transmitter.

°

Never

subject

the

batteries

to

excessive

heat

or

flame;

do

not

attempt

to

disassemble

them;

and

be

sure

they

are

not

short-circuited.

¢lf

the

remote-control

transmitter

is

not

to

be

used

for

a

long

time,

remove

the

batteries

and

store

them

in

a

cool

dark

place.

*

Always

remove

old,

weak

or

worn-out

batteries

promptly

and

dispose

of

them

properly.

Never

mix

old

and

new

batteries,

nor

batteries

of

dif-

ferent

types

(carbon

or

alkaline).

2

Insert

the

batteries

and

close

the

cover.

Use

two

AAA

[RO3(UM-4):

1.5

V]

batteries.

1

Open

the

cover.

Bottom

panel

of

remote-

control

transmitter

MiTo

remove

the

batteries

Reverse

procedure

2.

@

Battery

life

About

1

year.

(Depending

on

frequency

of

use.)

Operation

notes

Face

it

toward

the

remote-control

signal

sensor.

Be

sure

the

transmitter

part

of

the

remote-control

transmitter

and

the

sensor

part

of

this

unit

are

free

from

dust.

Excessive

dust

might

prevent

reception.

Use

the

remote-control

transmitter

within

6

meters.

Remote-control

transmitter

(Obstacles

should

be

avoided.)

6

meters

(20

ft.)

Notes:

1.

The

control

panel

of

the

remote-control

transmitter

may

be

covered

by

a

clear

plastic

protective

sheet.

This

sheet

may

be

removed

if

desired.

2.

If

this

unit

is

placed

in

an

audio

rack,

the

distance

that

the

remote

control

transmitter

can

be

used

from

might

be

reduced

due

to

the

thickness

or

color

of

the

glass

door.

—5—

Mi

CONNECTIONS

¢

Connections

to

equipment

“PHONO”

terminals

Connect

a

turntable.

Note:

For

remote-control

operation,

be

sure

to

connect

the

ground

wire

correctly.

Turntable

(option)

eT

ae

“VCR

1”

terminals

Connect

a

video

cassette

recorder

or

an

audio

tape

deck

etc.

(Refer

to

the

operat-

ing

instructions

of

VCR,

etc.)

Video

cassette

recorder

(option)

(GND)(R)

()

(L)(R)(Y(R)

G

id

wi

ti

reunite

(onten

Stereo

connection

Stereo

—

cable

(option)

connection

cables

(option)

“PRE

OUT/MAIN

IN”

terminal

(See

above.)

This

unit

(GND)(R)

(L)

(L)(R)(L)(R)

“PRE

OUT/MAIN

IN”

terminals

Do

not

remove

the

shorting

pins

from

these

terminals

unless

you

plan

to

use

an

independent

preamplifier

or

main

amplifier.

(No

sound

will

be

heard

if

they

are

removed).

To

use

it

in

this

way,

consult

the

operating

instructions

for

the

additional

amplifier

or

preamplifier

that

you

plan

to

use.

Cooling

fan

The

cooling

fan

operates

only

at

high

output

power

levels.

PRE

MAIN

OUT

IN

C2

CD

(L)

(R)

Stereo

connection

cable

(option)

:

une

out

OC) CE)

©

REMOTE

,

CONTROL

Compact

disc

player

(option)

“CD”

terminals

Connect

a

compact

disc

player.

If

the

remote

control

terminal

on

the

tape

deck

is

1/8

inch

stereo

mini-jack.

This

unit

$$

Connection

cable

for

remote-control

(included)

(AX

(RY

Stereo

connection

cables

(option)

~_Flat

cable

for

(included)

Tape

deck

(option)

“TAPE/VCR

2”

terminals

Connect

a

tape

deck

or

second

VCR.

Tape

deck

(option)

INPUT

OUTPUT

-

REMOTE

GY

©

CONTROL

—-6-

Connection

cable

for

remote-control

(included)

%

eee

||

A

rr

SameEeS

If

the

remote-control

terminal

on

the

tape

deck

Is

3-pin

type.

remote-control

Connection

cable

for

remote-control

(option)

AC

power

supply

cord

(included)

The

configuration

of

the

AC

outlet

and

AC

power

supply

cord

differs

according

to

area.

ES

I

go

a

ee

eee

al

!

fe)

|

Household

AC

outlet

:

Compact

disc

player

(option)

INPUT

'

REMOTEG)

CONTROL

MED

SA-R330

e

Connections

to

speakers

WLoad

impedance:

MAIN

or

REMOTE:

4~16

Q

MAIN

and

REMOTE:

8~16

Q

This

unit

@

“REMOTE”

terminals

For

connection

to

a

second

pair

of

speakers.

Oo

©

&

©

+)

:

/

N

ae

eal

Speaker

connection

cords

(option)

Connection

of

speaker

wires

i i

Notes:

:

Kaha

dein

ae

wes:

eee

10

mm

1.

To

prevent

damage

to

circuitry,

never

©

@

Lift

up

the

lever,

and

insert

the

core

y

7

(13/32")

et

eee

hand

aie

es

until

it

can

no

longer

be

seen.

Twist

speaker

tareninala,

@

Press

down

the

lever,

and

pull

the

5

ee

sie

GA

Leite

BITS)

cord

gently

to

be

sure

that

it

is

secure.

©

~<am

Side

a5

seeane-

CLV

terri

ant

|

ti]

negative

(—)

cords

to

negative

(—)

terminals.

3.

Connections

of

speaker

wires

should

be

made

before

connecting

the

AC

power

supply

cords.

Mi

PROTECTION

CIRCUITRY

The

protection

circuitry

may

have

operated

if

either

of

If

this

occurs,

follow

the

procedure

outlines

below:

the

following

conditions

is

noticed:

1.

Turn

off

the

power.

©

No

sound

is

heard

when

the

power

is

turned

on.

2.

Determine

the

cause

of

the

problem

and

Correct

it.

©

Sound

stops

during

a

performance.

3.

Turn

on

the

power

once

again

after

one

minute.

The

function

of

this

circuitry

is

to

prevent

circuitry

Note:

damage

if,

for

example,

the

positive

and

negative

Speaker

connection

wires

are

‘‘shorted”,

or

if

speaker

systems

with

an

impedance

less

than

the

indicated

rated

impedance

of

the

amplifier

are

used.

When

the

protection

circuitry

functions,

the

unit

will

not

operate

unless

the

power

is

first

turned

off

and

then

on

again.

Mi

BEFORE

REPAIR

AND

ADJUSTMENT

1.

Turn

off

the

power,

Discharge

both

power

supply

2.

After

completion

of

repair,

slowly

apply

the

primary

capacitors

(C701,

C702

8200uF)

through

a

100

5W

voitage

by

using

a

variac

to

avoid

over

current.

resistor

to

ground.

‘Do

not

short

between

C701

and

Current

consumption

at

50Hz/60Hz

in

no

signal

C702.

It

may

damage

the

capacitors.

mode

should

by

shown

with

respect

to

supply

voltage

220V.

Power

supply

voltage

|

aczzov

|

Consumed

current

50/60

Hz

170~370mA

SA-R330

@

DISASSEMBLY

INSTRUCTIONS

How

to

remove

the

cabinet

How

to

remove

the

power

switch

P.C.B.

1.

Remove

the

5

screws

(O~@).

1.

Remove

the

power

switch

knob..

1

1>2>3

|

2.

Remove

the

2

screws

(@,

@).

Cabinet

Screwdriver

Power

switch

Qa

sei,

knob

How

to

remove

the

front

panel

pcre

1.

Remove

the

4

screws

(@~@).

Note:

Remove

the

knob

by

pushing

it

from

behind

the

panel.

aires

How

to

remove

the

FL

P.C.B.

1.

Remove

the

3

screws

(@~®).

1>2-4

2.

Release

the

tab.

2.

Remove

the

flat

cables

(J501

and

J502).

Removing

the

flat

cable

(No

1

side)

White

line

@pn

—d

ush

1

2

QO.

|

73m

Connector

SA-R330

How

to

remove

the

power

!C

Procedure

|

4

Unsolder

the

power

IC.

1425-6!

92.

Remove

the

2

screws

(@,

@).

l

tf

ZA

Utd

(A

:

((,

cs

i

2

QO

\

How

to

remove

the

tuner

P.C.B.

and

main

P.C.B.

Procedure

1.

Remove

the

18

screws

(@~®).

2.

Remove

the

tuner

P.C.B.

and

main

P.C.B.

Main

P.C.B.

|

Oo;

|

Tuner

P.C.B.

|

Q\

we

os

Unsolder

the

power

IC

Note:

When

mounting

the

power

IC,

apply

silicon

terminal

compound

(SZZOL15)

to

the

rear

of

the

power

IC.

How

to

check

the

main

P.C.B.

1.

Remove

the

7

screws

(@~@)

in

above

figure.

3.

Remove

the

bottom

chassis

in

the

direction

of

the

2.

Remove

the

9

screws

(O~®@).

arrow

(@).

eae

e@

Si

ES

se

i

Eo

20

y

i

re

Ni

;

ag!

|

SA-R330

Ref.

No.

How

to

remove

the

balance

control

Ref.

No.

:

7

P.C.B.

and

volume

P.C.B.

‘i

How

to

remove

the

key

switch

P.C.B.

Procedure

|

4

Remove

the

balance

control

knob.

1.

Remove

the

2

screws

(@,

@),

and

1+2+4-T)

9.

Remove

the

2

screws

(@,

@).

1+2>4>8

remove

the

P.C.B.

holder.

3.

Remove

the

balance

control

P.C.B.

2.

Remove

the

2

screws

(@,

®).

4.

Remove

the

3

screws

(@~®).

3.

Remove

the

2

tabs.

5.

Remove

the

volume

P.C.B.

4.

Remove

the

key

switch

P.C.B.

Balance

control

P.C.B.

Balance

control

knob

Ref.

No

How

to

disassemble

the

remote

control

Procedure

|

4

Remove

the

Battery

cover

lid.

Mounting

main

volume

control

9

2.

Remove

screws

@.

1.

Insert

the

motor

volume

shaft

into

volume

base

Fo

(@)

and

secure

it

with

nut

(©).

y

2.

Insert

the

shatter

plate

(©)

into

volume

knob

(@),

then

mount

the

volume

light

guide

(@),

volume

knob,

and

volume

ring

(@)

on

the

volume

shaft.

lid

Note:

Slip

one

end

of

the

shatter

plate

eanencaern

inside

the

volume

light

guide.

hg

3.

Insert

a

flat

blade

screwdriver

between

the

upper

and

lower

covers

inside

the

battery

compartment

and

then

slowly

loosen

the

bottom

cover.

.

SA-R330

Mi

MEASUREMENTS

AND

ADJUSTMENTS

FM

STEREO

DISTORTION

ADJUSTMENT

FM

SIGNAL

GENERATOR

CONDITION

Modulation

Stereo

“L”

mode

or

"'R”

m@FM

1.

Test

equipment

connection

Is

shown

in

figure.

mode

45%,

Pilot

10%

2.

Set the

unit

to

“FM”

mode.

Modulation

frequency

eae

2

3.

Set

the

radio

f

cy

displ

d

signal

generator

to

Output

level

Control

positions

and

equipment

used

SaadGMiias

Co

¢

FM

signal

generator

(AM

and

FM-SG).

*AC

and

DC

electronic

voltmeter

(EVM)

4.

Adjust

L1

so

that

the

distortion

factor

of

L-CH

is

minimized.

¢

Stereo

modulator

«Frequency

counter

5.

Make

sure

that

the

distortion

factors

of

L-CH

and

R-CH

are

©

Distortion

analyser

¢

Resistor

(100kQ)

nearly

the

same

with

each

other

to

minimum.

*

Oscilloscope

Notes:

;

:

1.The

adjusting

screwdriver

used

should

be

made

of

resin.

Note:

For

2201, Z202,

Z321,

L321,

L322

and

L324,

adjusted

parts

are

supplied.

So,

do

not

turn

the

cores

of

these

parts.

2.L1

should

be

rotated

no

more

1/4

turn

(90

deg.)

on

elther

side.

Stereo

modulator

Output

mode...

Lor

R

FM

MONO

DISTORTION

ADJUSTMENT

FM

SIGNAL

GENERATOR

CONDITION

1.

Test

equipment

connection

is

shown

in

figure.

Modulation

2.

Set

the

unit

to

“FM”

position.

Modulation

tequeney

MONG)

3.

Set

the

radio

frequency

display

and

signal

generator

Output

level

to

100.10

MHz.

4.

Adjust

T201

core

so

that

voltage

measured

in

signal

mode

is

OmV

(0+20mV)

in

300mV

range.

.

Adjust

T202.so

that

the

distortion

factor

of

Lch

is

=

¢

Adjustment

points

minimized.

.

Repeat

steps

4

and

5

a

few

times.

a

.

Make

sure

that

the

distortion

factors

of

Lch

and

Rch

aga

5

AM

ANT

FM

ANT

8

(75Q)

are

nearly

the

same

with

each

other

to

minimum.

Note:

The

adjusting

screwdriver

used

should

be

made

of

resin.

MPX

VCO

ADJUSTMENT

FRONT

END

PACK

.

Test

equipment

connection

is

shown

in

figure.

.

Set

the

unit

to

“FM

auto”

position.

.

Place

the

radio

frequency

display

and

signal

FAROUENCY.

generator

to

100.10

MHz.

TERMINAL

=

COUNTER

.

Adjust

VR301

for

19.00+0.03kHz

on

frequency

counter

reading.

iar)

O

%*

USING

ALTERNATE

SYSTEM

1.

Apply

stereo

signal

from

generator

or

receive

the

_

stereo

broadcast.

5

©

2.

Adjust

VR301

until

stereo

indicator

lights

up.

cS

(indicator

lighting)

Cement

arm

of

VR301

as

shown

in

figure.

oO

5:

Adjust

point

of

Pilot

circuit

-—

©:

Stereo

OFF

position

:

Stereo

ON

position

FM

offset

coil

Modulation

Stereo

“L”

mode

or

“R”

2.Set

the

unit

to

“FM”

mode.

mode

90%,

Pilot

10%

3.Set

the

radio

frequency

display

and

signal

generator

to

Modulation

frequency

1kHz

(Pilot

19kHz)

FM

MONO

100.10MHz.

Output

level

DISTORTION

4.Adjust

VR302

so

that

the

R-CH

output

is

minimized

when

coil

stereo

modulator

is

in

“L”(L-CH

modulation)

mode.

FM

STEREO

1.Test

equipment

connection

is

shown

in

figure.

SEPARATION

Adj.

MPX

VCO

Adj.

LPF

(fc

=

15

kHz

~

19

kHz)

@

FUNCTION

OF

TERMINAL

e

10901

(LC6554H3682):

microcomputer

DESCRIPTION

OF

TERMINAL

Segment

signal

output

PPO

(S13)

PAO

Key

return

signal

input

B

PB2

PB3

(STAND

BY)

PCI

0

|

B

PCO

(OFF)

C

(STEREO)

PC2

(SD)

PC3

(DP)

PD

(RELAY)

PD1

(DK)

(MO)

(RFM)

(AFM)

ee

a

[|

a

Reset

signal

input

vU

m

fo)

v m

®

ms]

m

—

10

12

13

14

17

18

9

{

uv

m

tr

SA-R330

FO

DESCRIPTION

OF

TERMINAL

(a

a

ee

Control

signal

terminal

for

1C401

(TC9163N)

Not

connected

Loudness

control

output

Volume

motor

drive

output

Not

connected

Power

supply

terminal

(negative

voltage)

Segment

signal

output

Digit

signal

output

and

key

scan

signal

output

|

56

|

Of

Power

supply

terminal

(positive

voltage)

Technics QUARTZ SA-R330 Manuale utente

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