Technics St-7600 User manual

—

S

I

-

_(XGH),

(XE)

ORDER

NO.

SD7603-1057

—

TECHNICAL

SPECIFICATIONS

(IHF)

Specifications

are

subject

to

change

without

notice

for

further

improvement.

FM

TUNER

SECTION

Frequency

range:

Antenna

terminals

:

Sensitivity

:

Total

harmonic

distortion

(400Hz,

100%

modulation)

:

S/N:

Frequency

response

:

Alternate

channel

selectivity

:

Capture

ratio

:

image

rejection

(at

98MHz):

IF

rejection

(at

98MHz):

Spurious

respnnse

rejection

(at

98MHz):

AM

suppression

:

88~108MHz

300

(balanced)

750

(unbalanced)

2.0

pV

MONO

0.2%

STEREO

0.4%

75dB

20Hz~15kHz

*o-2dB

75dB

(NORMAL)

90dB

(NARROW)

1.0dB

S608

82

dB

90dB

55dB

Stereo

separation

:

Leak

carrier

(19kHz,

38kHz):

AM

TUNER

SECTION

Frequency

range:

45dB

at

1KHz.

35dB

at

10kKHz

—65dB

525

~1605kHz

TECHNISCHE

DATEN

(DIN

45

500)

Spezifikationen

kénnen

infolge

von

Verbesserungen

ohne

Ankundi

igung

geandert

werden.

UKW-TUNERTEIL

Empfangsbereich

:

Antennenanschliuss

:

88

~108MHz

300

(symmetrisch)

752.

(asymmetrisch)

Empfindlichkeit

:

a

OV,

30dB

Fremdspannungsabstand

3009

1.4uV,

20dB

Fremdspannungsabstand

3000

1.0uV,

30dB

Fremdspannungsabstand

759

0.7

uV,

20dB

Fremdspannungsabstand

759

Fremdspannungsabstand

:

MONO

68dB

.

STEREO

60dB

Frequenzgang

:

20H2~15kHz,

+92

dB

Selektivitat

:

75dB

(NORMAL)

.

90dB

(NARROW)

Gieichwellen-Selektion

:

.

1.0dB

Harmonische

Verzerrung

:

MONO

0.2%

STEREO

0.4%

Spiegelselektion

bei

98MHz:

So08

ZF-Festigkeit

bei

98MHz:

82dB

Sensitivity

:

30

nV

Selectivity

:

25dB

image

rejection

(at

1000kHz)

:

45dB

IF

rejection

(at

1000kHz):

40dB

GENERAL

Output

voltage

:

0~0.7V

|

Power

supply

:

50/60Hz2

110/120/220/240V

Power

consumption

:

13W

|

Dimensions

(W

xH

xD):

410

«140

x352mm

(163°x5

$-"x13

2")

Weight:

4.9kg

(10.8

Ib.)

ert

Unselektivitatsfestigkeit

bei

98MHz

:

90dB

AM-Unterdruckung:

lays

(is)

Stereo-Ubersprechdampfung

:

45dB

bei

1kHz,

35dB

bei

10kHz

Tragerrest

:

—65dB

Begrenzung,

Einsatzpunkt:

L2uV

Bandbreite

:

ZF-Verstarker

250kKHz

UKW-Demodulator

820kKHz

MW-TUNERTEIL

Empfangsbereich

:

525~1605kHz

Empfindlichkeit

:

30

pV

Selektivitat

:

os

25dB

Spiegelselektion

(bei

1000kHz):

45dB

ZF-Festigkeit

(bei

1000kHz):

40dB

ALLGEMEINE

DATEN

Ausgangsspannung:

O~0.7V

Leistungsaufnahme

:

13W

Netzspannung

umschaltbar

:

110/120/220/240V

Abmessungen

(B

xH

«T):

410

«140

x352mm

Gewicht:

4.9kg

Matsushita

Electric

Trading

Co.,

Ltd.

P.O.

Box

288,

Central

Osaka

Japan

LOCATION

OF

CONTROLS

oO

2)

vy

1)

FM

STEREO

INDICATOR

(2)

FM

TUNING

METER

(3)

FM/AM

SIGNAL

METER

4)

POWER

SOURCE

PUSH

SWITCH

‘S)

BAND

SELECTOR

SWITCH

(6)

FM

MUTING

PUSH

SWITCH

7)

EM

IF

SELECT

PUSH

SWITCH

8)

HIGH

BLEND

PUSH

SWITCH

(9)

OUTPUT

LEVEL

CONTROL

10

TUNING

CONTROL

1)

VOLTAGE

SELECTOR

SWITCH

12

AM

FERRITE

ANTENNA

COIL

13

AM

ANTENNA

TERMINAL

14

FM

ANTENNA

TERMINALS

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

752)

15)

FM

ANTENNA

TERMINALS

.....000.3.

30020

19

OUTPUT

TERMINALS

12)

GROUND

TERMINAL

Mi

SERVICE

AID

®

FM-IF

selector

-

This

unit

includes

an

FM-IF

selector

switch

which

makes

it

possible

to

choose

between

either

the

usual

wide

band

of

the

FM

intermediate

frequency

(“NORMAL”

position),

or

the

“NARROW”

position,

at

which

the

audio

frequency

characteristics

are

not

changed

and

the

band

is

narrow

in

order

to

increase

selectivity.

If,

at

the

“NORMAL”

position,

the

difference

between

the

desired

reception

frequency

and

the

adjacent

frequency

is

300

kHz

and

the

selectivity

is

75

dB,

selectivity

can

be

improved

to

90dB

by

setting

the

selector

to

the

“NARROW”

position.

-

This

circuitry

is

shown

in

figure

2.

When

the

selector

is

set

to

the

“NORMAL”

position,

the

FM-IF

passes

through

CF3,

and

then

from

TR65,

through

C19,

to

TR7.

From

TR8

through

C26,

it

is

then

applied

to

the

IF

amplifier

of

the

When

the

selector

is

set

to

the

“NARROW”

position,

however,

the

transistor

TR/

does

not

operate,

because

no

bias

is

applied

to

its

base.

Conversely

TR6

becomes

operational

when

bias

is

applied.

When

a

narrow-band

FM-IF

signal

is

applied,

from

TR4

and

through

the

muting

IFT,

to

TR6,

TR6

becomes

operational,

the

signal

flows

as

pO

described

in

the

diagram

by

the

symbol

(.--}

wise

tara

/*

)

and

the

circuitry

becomes

narrow-band

ooh,

FM-IF

circuitry.

a

i

}

as

A

C19

¢

f

C26

ue

ay

et

To

iF

Amplifier

/

Sf

He)

Desired

frequency

oy

|

Adjacent

frequency

|

NORMAL

|

NARROW

=e

ne

ra,

fan

wae

yeah

Gaee

ho

\

/

i

eee

/

=

vs

“

To

muting

circuit

NORMAL

NARROW

Pagact

rig.

2

2)

sT-7600

@

ALIGNMENT

INSTRUCTIONS

Notes

:

1.

MUting

SWIICH........ccccrcccccccnscrocscsrsnsenssssessensssesrseasnssonneses

OFF

4.

Maintain

line

voltage

at

rated

voltage.

2.

Band

selector

switch............

AM,

FM

AUTO

(FM-RF,

FM-IF)

5.

Output

of

signai

generator

shouid

be

no

higher

than

necessary

3.

3002

FM

dummy

Antenna

wu

eeeeeeesreenees

Refer

to

fig.

1.

to

obtain

an

output

reading.

FM

MPX

PILOT

ALIGNMENT

When

use

the

frequency

counter

When

not

use

the

frequency

counter

@

98MHz

Non-modulation

mono

signal

applied

to

set.

|

@D

Stereo

signal

applied

to

set

or

receiverthe

stereo

station.

SIGNAL

GENERATOR

sate

|

INDICATOR

ITED

13

@

Muting

switch

to

ON.

|

@

Adjust

VR3

to

lighting

point

of

stereo

indicator

and

sement

or

SWEEP

GENERATOR

(VTVM

or

SCOPE)

SOIITS

Li

REMARKS

3)

Connect

the

frequency

counter

to

TP4

through

resistor

(100k).

contactor

of

VR3

as

shown

fig.

2.

SETTING

|

[DISTORTION

METER]

455kHz

High

side

through

T5

(ist

JFT)

(P)

Note

:

1.

Stereo

modulator

....

Connect

stereo

modulator

output

to

EXT.

MOD.

terminal

of

signa!

generator.

1|

0.001uE

to

TPs

:

Sane

|

Baronets

|

eee

om

ies

ut

Lita

(S)

eerie

mae

|

Internal

OSC

......

eee,

1kHz

Pilot

signal

modulation

.............00.

Common

to

chassis.

470kHz

|

6

(2n

}

2.

Signal

generator...

eee

Frequency

approximately

98MHz.

Output

level

72dB

(IHF).

Modulation

mode

to

FM.

|

3.

Band

selector

switch

ou...

Adjust

for

maximum

2|

turns

of

wre

andradiote

|

(GO%

Mod.

|

ssoKtz

|

L°Sech

armel

creer,

|

Loot

ANT

Com

gare

of

Ls01

by

SISSONNECTION

|

MODE

and

MOD.

RATE

|

(VTVMor

SCOPE)

POINTS

REMARKS

o

outpu

inal

o

Ol

core

0

1

by

an

,

or

|

N

signal

into

loop

of

tuner.

:

with

400H2z)

|

screw

driver.

|

Adjust

for

maximum

FM

antenna

terminal

L

(and

R)

30%

Modula-

Connect

VTVM

or

scope

to

|

Adjust

for

minimum

right

3

ee

|

30%

Mod

ee

Connect

VTVM

or

scope

|

CTs

(OSC

Trimmer)

output.

14

|

through

dummy

antenna.

tion.

output

terminals

through

low

|

(and

left)

output.

signal

into

loop

of

tuner.

|

with

400Hz)

to

output

terminal

of

set.

|

CT4

(ANT

Trimmer)

aes

steps

(2)

and

i

pass

filter.

M@

ALIGNMENT

POINT

:

Connect

vertical

ampli-

;

oy

;

Point

of

non-

|

¢

T1

(DISCRI

IFT)

(P)

Adjust

for

maximum

4

tae,

|

No

Signat

fier

of

scope

to

output

ie

inter-ference.

|

farminalot

set

|

Brown

Core

noise

level.

es,

|

eS

|

;

Point

of

non-

ee

Tt

(DISCRI

IFT)

(S)

Adjust

for

center

°

Peas

|

No

Signal

|

inter-ference.

|

TUnINg

meter

of

set.

|

Green

Core

|

position.

EM

ANT

AM

OSC

!

|

AM

ANT

106MHz

550kHz

7

VR101

TT

”OCOCOCOCSCSCSCSCSRMSR

ALIGNMENT

L501

SEPARATION

Connect

to

FM

antenna

90MHz

;

L3

(OSC

Coil)

,

terminal

through

FM

(100%

Mod.

Connect

VTVM

or

scope

|!

L2

(DET

Coil)

.

|

Adjust

for

maximum

L1

(ANT

Coil)

ONPuy

AM

ANT

AM

Ist

IF

FM

DISCRI

~=-FM

DISCRI

1500kHz

dummy

antenna.

'

with

400HZ)

|

to

output

terminal

of

set.

455kHz

(Primary)

(Secondary)

.

PLL

V

(Refer

to

fig.

1)

CO

Adjust

for

maximum

aed

at

eee

|

cone

Lica

'

Connect

VTVM

or

scope

ae

ee

output.

ecminars

nous

(iC

oe

to

output

terminal

of

set.

2

(

rimmer)

Repeat

steps

(6)

and

dummy

antenna.

with

400Hz)

CT1

(ANT

Trimmer)

(7).

Connect

to

FM

antenna

|

98MHz

|

Adjust

for

minimum

8|

terminal

through

FM

|

(100%

Mod.

|

98MHz

|

eee

rina

cee

a

Lape

eee

(P)

|

of

distortion

meter

dummy

antenna.

|

with

400H2)

|

:

|

indication.

SIGNAL

METER

ALIGNMENT

98MHz

|

Adjust

for

maximum

9]

Connect

to

FM

antenna

(Input

level

Signal

meter

of

set.

|

12

(MUTING

IFT)

(P)

of

signal

meter

indi-

terminal

through

FM

are

18

dB)

|

cation.

dummy

antenna.

|

aes

eens

98MHz

:

|

Adjust

for

minimum

TO|

verre

le

(30%

Mod.

(Inlet

leve!_

|

Signal

meter

of

set.

T3

(MUTING

IFT)

(S)

_,

of

signal

meter

indi-

with

400Hz)

|

are

18dB)

|

cation.

[12

|

(P)

l

FM

DET

FM

OSC

AM

OSC

FM

OSC

FM

DET

AM

2nd

IF

MUTING

FM

SIGNAL

MUTING

98MHz

!

|

Adjust

for

about

4.7

9OMHz

9O0MHz

1500kHz

106MHz

1O6MHz

455kHz

&

METER

IF

METER

44)

Guteut

ae

es

(Input

level

|

Signal

meter

of

set.

VR

|

point

of

signal

meter

ee

-

are

60dB)

|

indication.

ee

oe

me

Note:

Muting

switch

to

ON

(1)

Remove

four

(4)

cabinet

mounting

screws

(side}

:

Nos

1~4,

as

shown

in

fig.

3.

welled,

ey

ene

one

Cree

clans

|

(2)

Remove

metal

fitting

of

cabinet

from

holes

A

and

42

sean

Seana.

(100%

eu

|

(input

level

|

Connect

VIVM

or

scope

_

Adjust

so

that

output

B

of

front

panel

in

arrow

direction

1,

as

shown

in

Output

level

of

S.G.

with

400Hz)

|

are

18dB)

to

output

terminal

of

set.

:

can

be

obtained.

119..3;

eons

30

dB

(IHF).

|

(3)

Remove

cabinet

from

chassis

in

arrow

direction

2,

as

shown

in

fig.

3.

Ride

Gee

7

a

ae

R~®,

6

~€:

Stereo

OFF

(4)

To

reassemble,

reverse

above

procedure.

—

|

112.50

ss

Position

(SG

imp.

752),

750

Ene

erg

@~

©:

Stereo

ON

Position

150

|

(Indicator

Lighting)

Adjust

Point

of

Pilot

Circuit.

(e)

3009

FM

Dummy

Antenna

Fig.

1

Figs:3

ST-7600

3. 4)

sT-7600

Schematic

Diagram........Model

ST-/7600

—

cue

ques

queues

anne

Gee

eee

ee

eee

owe

ee

oo

aa

oe

eee

a

eg

SS

A

na

a

ae

ay

as

ct

a

re

I

ere

et

ote

he

eee

he

——

ed

-

7

15

K

a

>

TR3

=

@ce

2SCI674

*

KIOP

ear

>

FM

L.OSC

VRS

(7)

@cio

K39P

xl)

ie.)

2

SS

=

x

2

n

wo

a

N

[ed

mx

oO

rd

©

a

TR2

©

13SK39

M

MIX

L4

]@ce

ciz

MO.Ol

C5

{8OP

x

©

wo

pl

x

{C1

AN2!7

FM

ist~4th

AM

RFE

AMP

L.

OSC

MIX

IF

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|

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|

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|

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war

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|

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rot

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VR301

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240V!

|

9

C16)

(2.0)

15.)

= z

lIOKA

|

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|

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(3.3) (2.3)

(2.3)

z

é

¥

|

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|

6

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|

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54

TRi04

|

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sl:

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|

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AF

AMP

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|

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|

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{-

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|

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|

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|

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ye

dk

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ante

ee

a

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|

220V/

240V

|

Po

ee

errr

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ae

dnintinisigetieiia

=

eee

ee

eee

Se

eS

ee

eS

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a

eee

ee

J

g

3

L50!

IC2

03

40

08

:

Si

ie

07

120

Notes

:

=

cae

“es

a

1.

$1-1~S1-4:

Band

selector

switch

in

“FM

MONO”

position.

7.

DC

voltage

measurements

are

taken

with

DC

VTVM

from

i

(Cl

FM

AM

BAND

SELECTOR

DY

AM<

@®

FM

AUTO

@

FM

MONO

chassis

ground.

WHT

—

BLK

—YEL

2.

$2-1:

FM

muting

switch

in

“ON”

position.

ON<>OFF

["_]

FM

mono

signal

reception.

30

0630

08

3.

$2-2:

FM

IF

selector

switch

in

“NORMAL”

position.

<

>

FM

stereo

signal

reception.

ETE

62

Oe

ECB

6

$0

=o]

ie

al

is

al

(e:

NORMAL<

NARROW

cr

3

FM

muting

in

ON

movement.

02

{

a

a}

4

4.

$2-3:

High-Blend

switch

in

“OFF”

position.

ON<>OFF

«

>>

FM

IF

selector

switch

to

“NARROW”

position.

O1

60

a

aia

S2-l

S2-2-$2-3

5.$3:

Power

source

switch

in

“OFF”

position.

ON<>OFF

(

)-AM

signal

reception.

Liot

oe

is

3SK39

25¢829

2SK49

FM

MUT.

FM

IF.

HI

BLEND

SWITCH.

6.$4:

Voltage

selector

switch

in

“240V”

position.

8c

1664

D

1N0V<>

@

120V

<>

G

220V<>

@

240V

ST-7600

(This

schematic

diagram

may

be

modified

at

any

time

with

the

development

of

new

technology.)

TR4,5

TR6,7,

8

TR9,

10

2SC829

2SCB29

Rea

100

2SCB29

FM

Sth

IF

AMP

FM

6th

IF

AMP

FM

7th

IF

AMP

86-240

9

tS

2-'0A99

&8

Ro

oa

FM

DET

5

oO

\

Zi

19

1OOP

|]

insne

va

4

S6.

eases

eee

Cc

:

@y

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Part

Name

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Ref.

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Part

Name

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C12,26,37,71,

|

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1

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3

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27

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6

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10

63,73

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SDH339

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4

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Pin)

4

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2

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Washer,

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Fuse,

315mA({T)

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3

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38

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38

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SHR113

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39

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SJA81

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40

SMA207

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AM

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1

41

SMA205

Holder,

AM

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1

42

SJF3207

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Output

1

43

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Panel

1

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Selector

43

[XE]

SGP390-1B

Rear

Panel

(for

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[XE]

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1

S2

|

SSH307S

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1F

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Hi-Biend

44

[X,XE]

SKA8330

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Brown

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[X]

&

1

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[XE})

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[XG]

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[XE]

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Part

No.

Part

Name

&

Description

PACKINGS

Soft

Cover

Polyethylene

Bag

Pad,

Left

&

Right

Side

Carton

Box,

Inner

(for

[X]

Only)

Carton

Box,

Outer

(for

[X]

Only)

P5

(XG,XE]

SPG629

Carton

Box

(for

Germany[XG]

&

45

[X,XE]

SQXA4067

Caution

Label,

for

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Cabinet

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45

[XG,XGH]

|

SQXA4112

Caution

Label,

for

Black

Cabinet

Use

XWG4FZ

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Cabinet

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XTB4+16FFZ

Screw,

Cabinet

M’tg.

England

[XE]}

P5

[XGH]

SPG631

Carton

Box

(for

Holland

[XGH]

Only)

P6

[XGH]

SPS333

Pad,

Under

(for

Holland

[XGH]

Only)

P7

[X.XG,

XGH]|

SQF1161

Printed

Matter

P7

{XE}

SQF

1183

Printed

Matter

(for

England

[X€}

Only)

P8&

SPS481

Pad,

Bottom

Side

ACCESSORIES

SSA251

Cord,

752

FM

Antenna

SJP2129

Cord,

Connection

RJPI6AS

Ptug,

AC

(for[X]

Only)

NOTE:

Set

for

[X]

are

European,

Asia,

Latin

America,

Oceania,

Middle

East

and

Africa.

M@

PACKING

PARTS

FRONT

PANEL

INSTALLATION

‘Yo

etteds

(for

Holland

[XGH]

Onty)

P6

Pa

(for

[X]

Onty)

PS

25)

Set

for

England

Only

Front

View

Technics ST-7600 User manual

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