Panasonic Sg-250r/25q User manual

Service

Manual

Compact

Stereo

SG-250R/25Q

FM/LW/MW/SW

STEREO

RECEIVER

ORDER

NO.

TSD-7601-247

Specifications

AMPLIFIER

SECTION

Power

Output

.......

cs

eeeeeeeeee

Frequency

Response.............

input

Sensitivity

and

Impedance:

Phono

Rec.

Out

and

Impedance

ted

Tone

Controls

Bass....

FM

TUNER

SECTION

Frequency

Rangé..........-

intermediate

Frequency

........

Sensitivity

00...

eeee

Image

Ratio...

cece

Signal

to

Noise

Ratio

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

DIStOrtion.......cccccececeeeeeeneneenees

Stereo

Separation..........006

.

10.7

MHz

AM

TUNER

SECTION

MPO

2

x

32

W(THD

1%,

4

ohms)

RMS

2

x

27

W(THD

1%,

4

ohms)

One

Channel

Driven

RMS

2

x

22

W(THD

1%,

4

ohms)

Both

Channel

Driven

10

Hz

~

25

kHz,

+1.5

dB

(DIN)

2

mV,

47k

ohms

300

mV,

100k

ohms

Sensitivity...

eee

..

300

mV,

30k

ohms

DIN:

30

mV,

82k

ohms

Image

Ratio....ccssseseeee

+10

dB

~

—10

dBat50

Hz

+10

dB

~

—16

dBat

10

kHz

—6

dB/oct.

from

7

kHz

POWER

CONSUMPTION

..........

POWER

SUPPLY

87.5

MHz

~

108

MHz

25

pV

(IHF)

Center

Unit...

3.5

nV

(S/N

26

dB,

MOD

40

kHz)

(DIN)

45

dB

(98

MHz)

WEIGHT

60

dB

(at

1

kHz,

60

dB,

40

kHz)

Center

Unit...

cece

(Unweighted)

(DIN)

0.6%

(MONO)

{at

1

kHz,

60

dB,

100%)

0.8%

(STEREO)

(at

1

kHz,

60

dB,

100%)

35

dB

(at

1

kHz,

60

dB,

30%)

>

30

dB,

250

Hz~

6.3

kHz

(60

dB,

30%)

(DIN)

=

18

dB,

6.3

KHz

~

12.5

kHz

(60

dB,

30%)

(DIN)

*

Specifications

are

subject

to

change

without

notice

for

further

improvement.

National

Panasonic

Frequency

Range............

Intermediate

Frequency

DIMENSIONS

(W

x

H

x

D)

MW:

525

kHz~

1,605

kHz

(572

m

~

187

m)

LW:

145

kHz

~

285

kHz

(2,070

m

~

1,050

m)

SW:

5.9

MHz

~

18

MHz

(50.8

m

~

16.7

m)

455

kHz

(except

UK:

470

kHz)

MW:

100

nV/m

for

50

mW

(1

MHz)

LW:

250

nV/m

for

50

mW

(220

kHz)

SW:

8zV

for

50

mW

(12

MHz)

MW:

45

dB

(1

MHz)

LW:

43

dB

(220

kHz)

SW:

15

dB

(12

MHz)

155

W

..

AC

100

V,

120

V,

220

V,

240

V,

50/60

Hz

552

mm

x

105

mm

x

306

mm

(21-25/32")

x

(4-

1/8")

x

(12-3/64")

7.4

kg

(16

Ib.

5

02.)

Matsushita

Electric

Trading

Co.,

Ltd.

P.O.

Box

288,

Central

Osaka

Japan

DISASSEMBLY

INSTRUCTIONS

®

To

Replace

Faulty

Components

=

To

Remove

Escutcheon

from

Chassis

1.

Remove

seven

(7)

knobs

from

escutcheon.

1.

Refer

to

above

instructions

1

to

4.

2.

Remove

three

(3)

rear

board

mounting

screws

2.

Remove

three

(3)

escutcheon

mounting

screws

Nos.

6

~

8,

as

shown

in

Fig.

3.

Nos.

9

~

11,

as

shown

in

Fig.

3.

Remove

four

(4)

bottom

board

mounting

screws

3.

To

reassebmle,

reverse

above

procedure.

Nos.

1

~

5,

as

shown

in

Fig.

3.

.

Lift

cabinet

from

chassis

assembly.

5.

Unsolder

faulty

components

and

replace

it

with

new

one.

6.

To

reassemble,

reverse

above

procedure.

A

DIAL

CORD

STRINGING

GUIDE

\

(2

turns)

CH14

(five)

CH9

(four)

Tuning

Capacitor........

Opened

Position

Dial

Cord

Length........

165

cm

SG-250R/25Q

LOCATION

OF

PARTS

FIG.

3

SG-250R/25Q

ALIGNMENT

INSTRUCTIONS

(RADIO)

—1

AMIFT

455

kHz

(UK:

470

kHz)

455

kHz

(UK:

470

kHz)

T201

(AM

1st

IFT)

T203

(AM

3rd

IFT)

LW

_+_——

L205

(OSC

Coil)

145

kHz

L202

(ANT

Coil)

145

kHz

CT204

(OSC

Trimmer)

285

kHz

CT202

(ANT

Trimmer)

285

kHz

MW

L204

(OSC

Coil)

550

kHz

L201

(ANT

Coil)

550

kHz

CT204

(OSC

Trimmer)

1,500

kHz

CT201

(ANT

Trimmer)

1,500

kHz

sw

L206

(OSC

Coil)

5.9

MHz

L203

(ANT

Coil)

5.9

MHz

CT206

(OSC

Trimmer)

18

MHz

CT203

(ANT

Trimmer)

18

MHz

T101

(FM

1st

IFT)

10.7

MHz

T204

(FM

Disc.

IFT)

10.7

MHz

T205

(FM

Disc.

IFT)

10.7

MHz

L104

(OSC

Coil)

90

MHz

L101

(ANT

Coil)

...

90

MHz

L102

(DET

Coil)

90

MHz

CT103

(OSC

Trimmer)

106

MHz

CT101

(ANT

Trimmer)

106

MHz

CT

102

(DET

Trimmer)

106

MHz

FM

STEREO

T301

(MPX

Coil)

(Pre-aligned)

VR301

(Separation

Control),

VR302

(Stereo

Eye

Level

Adjust)

7

,

}

10.7

MHz

7

We

10.7

MHz

FIG.

5

FIG.

6

SG-250R/25Q

CT203

(SW

ANT)

CT202

(LW

ANT)

CT201

(MW

ANT)

TP

101

L101

T101(FM

1st

(FM

ANT)

L104

@'*?

CT102

cM

aa

(FM

8

T201

(FM

OSC)

(AM

1st

IFT)

T202

(AM

oh

L203

(SW

ANT)

TP201

a

[®)

oT

[D)

(FM

DISC)

ed

3rd

(SW

OSC

L205

(LW

osc)

0)

p

6sq@)

Fs

se

|

i

oom

iC301

ee

1

L201

bad

(MW

ANT)

CT204

(

7301

(FM

MPX)

FIG.

4

ALIGNMENT

POINTS

20pm

ee

sll

(FM

ANT)

se

=

+H

Se

SE

IFT)

MC5

Waa

Ky

VR301

21

3019

(FM

SEPARATION)

L206

I<

©)

cT206

(SW

OSC)

)

CT205

(LW

OSC)

MW

OSC)

=

Hecsings

ow

!o

SSG

752

|

Receiver

YS

ie

pF

(lm.

750),

1509

|

ot

anan-————!0

3202

400

pF

Gases

oe

oA

FIG.

7

FIG.

8

DUMMY

ANTENNA

ALIGNMENT

INSTRUCTIONS

(RADIO)

—2

ALIGNMENT

INSTRUCTIONS

(RADIO)

—3

SIGNAL

GENERATOR

or

SWEEP

GENERATOR

CONNECTION

FREQUENCY

DISTANCE

FROM

“START

POINT”

16.1

mm

195.0

mm

22.3

mm

FREQUENCY

AND

DISTANCE

ON

DIAL

SCALE

To

accurately

align

to

the

proper

frequencies

on

the

dial

scale,

refer

to

Table

at

right

and

mark

the

edge

of

the

dial

scale

accordingly,

using

the

“Start

Point’

mark

on

the

dial

scale

as

a

reference

point.

FREQUENCY

145

kHz

285

kHz

550

kHz

RADIO

DIAL

SETTING

INDICATOR

(VTVM

or

SCOPE)

ADJUST

REMARKS

FM-IF

and

DETECTOR

ALIGNMENT

Connect

vert

amp.

Adjust

for

maximum

1,500

kHz

191.2mm

High

side

through

.

-

;

1(F

;

:

{

0.001

mfd

to

point

oe

pe

eles

(on/

of

scope

to

point

a

ae

M

1st

IFT)

amplitude

and

Notes:

1.

Volume

Control................

Maximum

(AM-IF

and

RF,

5.9

MHz

8.4

mm

TP101.

SWP

about

98

MHz)

TP201.

(FM

Disc.

IFT)

symmertrical

curve

oe

FM-RF)

Minimum

(FM-IF)

18.0

MHz

206.2

mm

Common

to

chassis.

)

Common

to

chassis.

i

(Refer

to

Fig.

5)

2.

Bass

and

Treble

Control...

Center

-

F

,

3.

Balance

Control

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

Center

a

vile

a

High

side

through

40.7

MHz

Point

of

non-

Connect

vert.

amp.

ere

rae

Dial

4.

Band

Selector

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

LW,

MW,

SW,

FM

MONO,

;

2

|

9,001

mfd

to

point

|

(459

KHz

interference

(on/

|

ofScope

to

point

T205

linearit

Ceneen

P

FM

AUTO

TP

101.

SWP)

about

98

MHz)

TP201.

(FM

Disc.

IFT)

+100

He

aterkers

5.

Power

Switch

....

...

ON

Common

to

chassis.

.

Common

to

chassis.

(Refer

to

Fig.

6)

i

6.

High

Filter

...

OFF

9.

7.

Tape

Monitor

*

Before

aligning

step

1,

turn

the

core

of

T205

fully

counterclockwise.

8.

rans

of

signal

generator

should

be

no

higher

than

necessary

to

obtain

output

FM-RF

ALIGNMENT

9.

Make

certain

that

speaker

system

is

connected

to

the

tuner

when

aligning.

Connect

to

EXT.

FM

a;

antenna

terminal

through

|

90

MHz

90

MHz

Output

meter

across

|

L104

(FM

OSC

Coil)

Adjust

for

maximum

SIGNAL

GENERATOR

or

1

Dummy

antenna.

30%

Mod.

(28.7

mm)

speaker

jack

(L).

L101

(FM

ANT

Coil)

a

ut

SWEEP

GENERATOR

RADIO

DIAL

INDICATOR

Common

to

chassis.

with

400

Hz

;

(Imp.

4

Q)

L102

(FM

DET

Coil)

put.

ADJUST

REMARKS

(Refer

to

Fig.

8)

SETTING

(VTVM

or

SCOPE)

CONNECTION

FREQUENCY

|

Connect

to

EXT.

FM

CT103

AM-IF

and

RF

ALIGNMENT

antenna

terminal

through|

106

MHz

ein

Output

meter

across

La

ae

for

maximum

Fashion

loop

of

Point

ofnon-

|

Output

meter

2

|Dummy

antenna.

—

30%

Mod.

179.3

speaker

jack

(L).

EM

ANT

Tri

Repea’

several

turns

of

wire

aoe

hed

interference.

across

speaker

T201

(AM

1st

IFT)

Adjust

for

maximum

Common

to

chassis.

with

400

Hz

(

mm)

(Imp.

4

@)

Oe

ne

oo

Steps

(ang

and

radiate

signal

with

400

Hz

(on/about

he

(.

‘all

7203

(AM

3rd

IFT)

output.

(Refer

to

Fig.

8)

(FM

DET

Trimmer)

mp.

4

2)\(UK:

8

Q)

into

loop

of

receiver.

600

kHz)

1

*

As

three

output

readings

will

be

present,

adjustments

must

be

made

at

center

frequency.

Fashion

loop

of

several

turns

of

wire

and

radiate

signal

into

loop

of

receiver.

145

kHz

30%

Mod.

with

400

Hz

145

kHz

(16.1

mm)

Output

meter

across

speaker

Jack

(L).

(Imp.

4

9)(UK:

8

9)

|

L205

(LW

OSC

Coil)

L202

(LW

ANT

Coil)

Adjust

for

maximum

output

by

sliding

coil

L202

along

ferrite

core.

Fashion

loop

of

285

kHz

Output

meter

L

Adjust

for

maximum

*

To

correct

drift

at

the

FM

dial

scale

(87.5

or

108

MHz),

adjust

coil

L104

and

trimmer

CT103

with

each

other.

285

kHz

(195

mm)

CT205

(LW

OSC

Trimmer)

CT202

(LW

ANT

Trimmer)

output.

Repeat

steps

(2)

and

(3).

several

turns

of

wire

and

radiate

signal

into

loop

of

receiver.

Fashion

loop

of

across

speaker

jack

(L).

(Imp.

4

Q)

(UK:

8

)

Output

meter

30%

Mod.

FM

STEREO

ALIGNMENT

with

400

Hz

Notes:

1.

Stereo

Modulator:

Connect

Stereo

Modulator

to

EXT.

Mod.

terminal

of

signal

generator

2.

Signal

Generator:

550

kHz

550

kHz

Adjust

for

maximum

several

turns

of

wire

30%

Mod.

across

speaker

and

radiate

signal

into

loop

of

receiver.

with

400

Hz

(22.3

mm)

jack

(L).

(Imp.

4

Q)

(UK:

8

9)

L204

(MW

OSC

Coil)

L201

(MW

ANT

Coil)

output

by

sliding

coil

L201

along

ferrite

core.

Modulation

Rate

of

19

kHz

Pilot

Signal

10%

Output

Level

*

..

30

dB

Fashion

loop

of

several

turns

of

wire

and

radiate

signal

into

loop

of

receiver.

1500

kHz

30%

Mod.

with

400

Hz

1500

kHz

(191.2

mm)

Output

meter

across

speaker

jack

(L).

(Imp.

4

0)

(UK:

8

Q)

CT204

(MW

OSC

Trimmer)

CT201

(MW

ANT

Trimmer)

Adjust

for

maximum

output.

Repeat

steps

(4)

and

(5).

Connect

to

EXT

antenna

and

ground

through

SW

Dummy

antenna.

(Refer

to

Fig.

7)

5.9

MHz

30%

Mod.

with

400

Hz

5.9

MHz

(8.4

mm)

Output

meter

across

speaker

jack

(L).

(Imp.

4

Q)

(UK:

8

Q)

L206

(SW

OSC

Coil)

L203

(SW

ANT

Coil)

_

Adjust

for

maximum

output

by

sliding

coil

L203

along

ferrite

core.

3.

Tuner:

Frequency.....

Volume

Control

....

Treble

and

bass

Co

Band

Selector

.

Balance

Control...

Band

Selector

Approx.

98

MHz

Audible

level

of

speaker

sound

N

19

kHz

AMP.

ALIGNMENT

EQUIPMENT

CONNECTION

SIGNAL

GENERATOR

OSCILLOSCOPE

ADJUST

7

(SW)

|

Connect

to

EXT

antenna

and

ground

through

SW

Dummy

antenna.

|

(Refer

to

Fig.

7)

18

MHz

30%

Mod.

with

400

Hz

seeks

18

MHz

(206.2

mm)

|

Output

meter

across

speaker

jack

(L).

(Imp.

4

Q)

(UK:

8

Q)

L

CT206

(SW

OSC

Trimmer)

CT203

(SW

ANT

Trimmer)

Adjust

for

maximum

output.

Repeat

steps

(6)

and

(7).

Connect

to

EXT.

FM

antenna

terminal

through

dummy

antenna.

(Refer

to

Fig.

8)

(T301)

REMARKS

Pre-aligned.

Do

not

touch

it.

SEPARATION

ALIGNMENT

Note:

1202

is

pre-aligned.

Do

not

touch

it.

SG-250R/25Q

.

Signal

Generator

Modulation

Rate

of

19

kHz

Pilot

Signal

Modulation

Rate

of

Right

and

Left

Sign

Output

Level

.

Tuner

(Balance

Control):

Adjust

balance

control

Level

so

that

output

le

.

Treable

and

bass

Control

.

Set

pointer

of

FM

tuning

meter

to

center.

EQUIPMENT

CONNECTION

SIGNAL

GENERATOR

connect

to

EXT.

FM

an-

tenna

terminal

through

dummy

antenna.

(Refer

to

Fig.

8)

SG-250R/25Q

VTVM

OSCILLOSCOPE

ADJUST

REMARKS

Connect

across

speaker

jack.

(left

side)

(Imp.

4

Q)

Connect

vertical

amp.

input

of

scope

to

ter-

minals

of

VTVM.

VR301

(Separation

Control)

Adjust

VR301

for

minimum

indication

on

VTVM

from

the

left

side

output

when

the

right

side

of

stereo

modulator

is

modulated.

Adjust

VR301

in

the

same

way

for

the

right

side.

Adjust

for

best

balance

between

“L

to

R”

and

“R

to

L”

separation.

SCHEMATIC

DIAGRAM

OF

MODEL

SG-250R/25Q

UK

only

roy

UK

Oniy

:

a

RIPPLE

FILTER

RECT

RE

S|

b

aroun

|

H

FM

RF

AMP

FM

OSC

FM

MIXER

AM

CONV

FM,AM

IF

AMP

FM

MPX

TUNING

TR901

2SC1383

Dogo)

SIRBIO

FM

t

J

T

BLUE

|

TR

2SK49

TRioz2SCi675-L_

TRi03

2SCIG75-L_

TR2o1

28C1359

1C2o1

AN

217

IC301

AN271

TR2oz

2SC828

STABILIZER

De03,90410DCIR

LINE

ANT

!

H

FM

AFC

FM

AGC

AM

DAGC

FM

DET

AM

DET

AM

RECT

AOC

Ds0z2

02Z9.5A

Os08.906

IODC!

rOa

H

Dios

SC-15

Dioi.102

OASO

Deo1

CASO

D202.203

20490

02040A90

eos

OA90_DzoeVDII21

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PHONO

AMP

AF

AMP

S

rt:

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C3}:

1)

Si:

POWER

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"OFF"

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SFi~

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FUNCTION

SELECTOR

SWITCH

IN

"RADIO"

POSITION

TRsoi,502.503,504

2SC1I327

TRs05.506,507,508

2SC900

Pp

o

Sz:

POWER

VOLTAGE

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POSITION

TRI.

>

TRI9g

103.

201.

2085

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110V

2.

120V

3.

220V

4.240v)

2)

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J

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502,503,504,

$3:

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505,506,

507.508.

Sq

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OC

Voltages

are

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measured

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VTVM

under

no

signal

901

condition

in

"MW,

LW,

SW,”

"FM"

POSITION

101

102 106 107

108

3

213

212

214

215

223

216 218

221

227

224 226 228

229

230

231

520

519

553

537

529

902

7O1

703

705

1

R

103

105

9

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2

208 238

au

234

235

236

237

239

301

ae

305

217

219

220

3th

306

307

232

308 233

309310

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521

531

533°

903

901

702

704

706

2

104

201

203

204

205

209

210

302

303 304

503 560

505

507

509

S515

511

$513

5Ii7

561

563559

554 523

525

527

535

530

536

539

541

543

555

55i

557

545

549

S47

202

207

B12

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506 SOB

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SI6

SI2

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518

562

564

524

526

528

532 534

538

540

S42 544

556

552

558

546 550

548

206

201

104

108

13

110

109

16

817

218

22)

224

238 228

230

235

232

308 233

236

Sil

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903 902

3901

711

705

701

703

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114

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118

214

222

223

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239

226

237

306

307 235 309

310

905

907

712

706

702

704

708

TIO

203

103

106

207

209

208

2

216 219

241

27

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S05

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537

539

536

Si!

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SI9

521

$23

525

533 S27 S29

S3

204

205

okd

210

212

205

213

301

302

303

304

305

502

504

506 508

538 540

Siz

510

si4

S16

518

520

522

524

526

534

$28

$30

532

ev

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ee

re

*

This

diagram

might

be

modified

without

notice

for

further

development

of

technology.

SG-250R/25Q

REPLACEMENT

PARTS

LIST

NOTES:

1.

Part

numbers

are

indicated

on

most

mechanical

parts.

2.

indicates

that

only

parts

specified

by

the

manufacturer

be

used

for

replacement

in

critical

circuits.

3.

A~

Crank.

A

rank

parts

will

cover

80%

of

repair

needs.

A

+

B

rank

parts

will

cover

95%

of

repair

needs.

Description

Remarks

0S2/Yw0SZ-DS

0S2/H0S2-DS

C

rank

parts

are

less

necessary.

Description

Remarks

TRANSISTORS

TR101

TR102,103

TR201

TR202

TR501~504

TRS505

~

508

TR901

2SK49

28C1359

28C828

28C1327

2S8C900

2SC1383

Transistor,

(FET)

FM

RF

Amplifier

2SC1675-L

Transistor,

FM

Oscillator

and

Mixer

Transistor,

AM

Converter

Transistor,

Phono

Amplifier

Transistor,

RF

Tuning

Transistor,

AF

Amplifier

Transistor,

Ripple

Filter

1C201

1C301

1€701,702

ab

AN217

AN271B

STK025G

INTEGRATED

CIRCUITS

IC,

FM

and

AM

IF

Amplifier

'C,

FM

MPX

Amplifier

IC,

Power

Amplifier

1

DIODES

D103

D202,203

D101,102,201,204,

205

D206

0901

D902

D903,904

D905,906

SC-15

20A90

OA90

vb1121

$1RB10

0229.5A

10DC1R

10DC1

Diode,

FM

AFC

Diode,

FM

Detector

Diode,

FM

AGC,

AM

D.AGC,

AM

Detector

Diode,

AOC

Diode,

Rectifier

Diode,

Stabilizer

Diode,

Rectifier

Diode,

Rectifier

PL1,2,3

PL4,5,6,7

INDICATORS

XAMR53X300

XAMR34X500-1

Signal

Meter

FM

Tuning

Meter

LAMPS

AND

FUSES

Pilot

Lamp,

Dial

Pointer,

Signal

and

Tuning

Meter

Pilot

Lamp

Stereo

Eye

and

Function

Lamp

XBAS2A1201

XBAS2A1004

XBA2C31TRO

L101

L102

L103

L104

L105

L201,202

L203

L204

L205

L206

L207

L1,2

T101

7201

T202

7203

T204

T205

T301

CF201,202

71

SLA4N2-0

RLD4N30

RLQY30$1-O

SLO4N12-0

ELQ5A9R

SLF6G26-0

SLA3M2

SLO2M2-M

SLO1M2

RLO3M14

RLQY25S-5

SLQY35S-2S

RLI4M101

SLI2M102

RLI7W105R-T

SLI9W104P-T

RLI2M402

RLI4M501-M

RLI4M502-M

RLM1Z3Q-K

RVFCF10M12CRI

SLT5Z4-W

Fuse

1.25A

(Primary)

Fuse

1A

(Third)

E

Fuse

3.15A

(Secondary)

COILS

AND

TRANSFORMERS

Antenna

Coil,

FM

Coil,

FM

Collector

IF

Trap

Coil,

FM

Oscillator

Coil,

FM

Coil,

Choke

Ferrite

Antenna

Coil,

MW

and

LW

Antenna

Coil,

SW

Oscillator

Coil,

MW

Oscillator

Coil,

LW

Oscillator

Coil,

SW

Coil,

Choke

Coil,

Radio

Frequency

IFT,

FM

1st

IFT,

AM

1st

CFT,

AM

....

SG-250R

CFT,

AM

(UK

only)

....

SG-25Q

IFT,

AM

2nd

IFT,

FM

Discriminator

(Primary)

IFT,

FM

Discriminator

(Secondary)

MPX

Coil,

FM

CFT,

FM

Power

Transformer

COMPONENT

COMBINATION

Z201

Z202

Z901~904

EXASDLO4C

EXAF2032471

EXNF2SL04C

REPLACEMENT

PARTS

LIST

Description

RESISTORS

R108,204

R111,207,215,310

R208,214

R112

R102,549,550

R113,703,704

R231,507,508,527

528

R211

R228

R205

R104,212,216,217,

232,304,503,504,

554,559,701,702

R209

R513,514,539,540,

543,544

R301

R203,210,306,307

R103,213,521,522,

525,526,547,548,

901

R224,511,517,

518,551,552

R202,230,233,305

R227

238,537,538

R107

R201,203,535,536,

541,542,555,556,

563,564

R220,223,229,237,

531,532

R561,562

R105,505,506.509,

510,515,516,529,

530,533,534

R101,106,219,226,

308,309,519,520

R234,236,302

R312

R109,110,221,222

R235

R218

R557,558

R523,524,545,546

R903

R239,560

R311

R553,902

ERD25TJ100

ERD25TJ470

ERD25TJ101

ERD25TJ151

ERD25TJ221

ERD25TJ331

ERD25TJ471

ERD25TJ561

ERD25TJ681

ERD25TJ821

ERD25TJ102

ERD25TJ152

ERD25TJ222

ERD25TJ272

ERD25TJ332

ERD25TJ472

ERD25TJ682

ERD25TJ103

ERD25TJ153

ERD25TJ183

ERD25T

J223

ERD25TJ333

ERD25TJ473

ERD25TJ683

ERD25TJ104

ERD25TJ154

ERD25TJ184

ERD25TJ224

ERD25TJ334

ERD25TJ474

ERD25TJ105

ERD25TJ155

ERG1ANJ150

ERG1ANJ220

ETG1ANJ330

ERG1ANJ470

1/4W

+5%

1/4W

+5%

1/4W

+5%

Carbon

1/4W

+5%

Carbon

1/4W

t+

Carbon

1/4W

+

Carbon

1/4W

Carbon

1/4W

Carbon

1/4W

Carbon

1/4W

Carbon

1/4W

+

Carbon

1/4W

1W

+5%

Metal

Film

1W

+5%

Metal

Film

1W

+5%

Metal

Film

a

zx

Carbon

it

ik

le

aan

zk

a

x

Carbon

Mit

I

+

aaa

a

Rk

1W

+5%

Metal

Film

=

Pana

kM

AB

haw

Remarks

Part

No.

Component

Combination

330pF

(Three)

4.7K

(two)

Component

Combination

0.02mfd

(two),

470

ohm

Component

Combination

0.01mfd

(two)

Description

BAneen

nnn

nn

owner

ni

iin

Per

Set

(pes.)

>>rrrrrrrrrworrrrrrrrrrprrp

O°

Remarks

qaoa0a0q0

00

aa00

ie)

aennngnagagnagaaan

R705,706

R1,2

ERD50TJ4R7

ERDS50TJ331

CAPACITORS

C114

C110

C205

C109,117

C107,116,216

C113,214

C104

C112

C222,231

C201

C204

C503,504,507,508

C102,203,232

C230

C115

C106,111,202,206,

706

C533,534

C519,520

C207,208,237

C308,309

C223,226,209,210,

523,524

C239,241,303

C302

C521,522

C108,505,506,515,

516,529,530

C310,31

1,902,103,

105,118,218,221,

224,228,236

C215

C212

C211

C219

C213

C539,540

C304

C908

C537,.538

C709,710

ECCD1H020C

ECCD1H040C

ECCD1H050D

ECCD1H070D

ECCD1H080D

ECCD1H100D

ECCD1H120K

ECCD1H220K

ECCD1H270K

ECCD1H330K

ECCD1H470K

ECCD1HS60K

ECCD1H101K

ECCD1H131K

ECCD1H100KV

ECKD1H102MD

ECKD1H332MD

ECKD1H682MD

ECKD1H103MD

ECKD1H153MD

ECKD1H223MD

ECKD1H222MD

ECKD1H333MD

‘ECKD1H683MD

ECKD1H102PF

ECKD1H223PF

ECQS1151JZ

ECQS1241JX

ECQS1361JdZ

ECQS1152dZ

ECQS

1392JZ

ECQM05103MZ

ECQM05153MZ

ECQM05223MZ

ECQM05333MZ

ECQM05473MZ

Ceramic

SOWV

+0.25pF

SOWV

+0.25pF

5OWV

+0.5pF

5OWV

+0.5pF

50WV

+0.5pF

5OWV

+0.5pF

SOWV

+10%

SOWV

+10%

SOWV

+10%

5OWV

+10%

S5OWV

+10%

SOWV

+10%

SOWV

+10%

S5OWV

+10%

SOWV

+10%

Ceramic

Cermaic

Ceramic

5SOWV

+20%

5SOWV

+20%

SOWV

+20%

SOWV

+20%

SOWV

+20%

Ceramic

SOWV

+20%

SOWV

+20%

SOWV

+20%

SOWV

+20%

Ceramic

5SOWV

+100,—0%Ceramic

0.022

SOWV

+100,—0%Ceramic

150pF

1OOWV

+5%

Styrol

240pF

100WV

+5%

Styroi

360pF

100WV

+5%

Styrol

1500pF

100WV+5%

Styrol

3900pF

1OOWV

+5%

Styrol

0.01

100WV

+20%

Polyester|

0.05

100WV

+20%

Polyester|

0.022

1OOWV

+20%

Polyester

0.033

1OOWV

+20%

Polyester|

0.047

100WV

+20%

Polyester

BA

awh

onnaoannowonaa

a

yy

eA

ay

aa

a

aoagqqgqgqgqgqaagaagagnqngaaaaa

aagaqg00

aa00

o)

g9oagagqgqgagqagnanagaaa

TR102

E

1.0V

Ie

1mA

1C301

WIRING

DIAGRAM

OF

MODEL

SG-250R/25Q

(FOR

UK

ONLY)

FM

ANT

AM

ANT

ee

eet

nes

paCeARTH

SP

TERMINAL

S2

POWER

VOLTAGE

TERMINAL

FM

LINE

ANT

TERMINAL

PEAY

N

TERMINAL

SPEAKERS

(42)

SELECTOR

SWITCH

—

D

5

RED

ety]

Ce

ee

—19)

”

=e

eee!

WHITE

(@]

wate

iecan

fe

au

ack

ay

[ORS

To

TERMINAL

STRIP-1

2]

[E

1

Mace

se

Pe

ee

ere

|e

To

HEADPHONEVACK-7

-~-

To

TERMINAL

STRIP-2

wW|

|2

'

13

a

w

(FOR

UK

ONLY)

5]

|&

!

ral

fe

i[

(E====

GREEN

To

P2

-®

'

:

2

|

=

GBD

oe

ANTENNA

COIL

|e

Yettow

6

f——1

BLACK

SECONDARY

=

ma

lee

TW

POWER

TRANSFORMER

TERMINAL

STRIP

ci

Ce

100P

1Q0P

a

To

LINE

ANT

aro,

7

L

To

HEADPHONE

HBCKeS

WHITE

fozown

To

P2-@

”

TT

ett

tl

&

7

Alek

TERMINAL

a

PH

INPUT-8

STRIP

(UK

only)

|

a

—

PH

INPUT-A

i

RED

U

YELLOW

PL2

Fi

TUNING

POINTER

METER

LAMP

=S=====,

To

AUX

TERMINAL

Function

|

ffi

ea

HY

SPAY

3

PLs

28

LAMP

:

SIGNAL

58

5P

JACK

METER

LAMP

oS

a

aq

8

°°

is

—_

om

o a

To

P.

VIOLET

ob

iin

ul

uw]

=

To

RED

0

=8

To

P3-O

8.

3|

8

MC5

GREEN

TO

P3-

ree)

Sy

o|

o

[

woLeT

eo

a

Prt

she

san

ao

er

;

la

ae

a4

ltt

|

ie

1

w

TJ

L

2

q

RED

zz

I

a

>

sa

=

ag

U

&

ss

a

B

Ss;

ao

POWER

°%

SWITCH

Ee

nl

1

ales

s!

rs)

Ls

SIGNAL

METER

SBi~i2

Pla

SFi~e

VRs0

1.502

VRs03,504

VRso7

VR505,506

S3

S4

HIGH

CUT

HEADPHONE

FM

TUNING

BAND

SELECTOR

STEREO

EYE

FUNCTION

SELECTOR

TREBLE

CONTROL

BASS

CONTROL

BALANCE

CONTROL

VOLUME

CONTROL

TAPE

MONITOR

FILTER

SWITCH

JACK

METER

SWITCH

SWITCH SWITCH

*

This

diagram

might

be

modified

without

notice

for

further

development

of

technology.

'C701,

702

TRS501,

502

$G-250R/25Q

OS2/H0Sz-DS

SEPLACEMENT

PARTS

LIST

Ref.

No.

Part

No.

Description

ee

Remarks

Description

Remarks

pes.

tT

C907

ECQM05334MZ

|

0.33

100WV

+20%

Polyester}

1

c

SWITCHES

305,509,510

Eucneuse

33

SWY

Electrolytic

3

B

SF1,2,5,6

SSR74K

Rotary

Switch,

Function

Selector

501,502

ECEA6V47

47

6WV

Electrolytic

2

B

SB

SSR76K

Rotary

Switch,

Band

Selector

Cane

ECEAGV

100

10

SWy

Electrolytic

q

B

s1

ESB7067

Push

Switch,

Power

ON-OFF

ee

ie

ae

ee

i)

s

cses7d

|

Sich.

vonge

Soe

:

83

SSH52

Push

Switch,

Tape

Monitor

C536,903

ECEA10V100

100

10WV

Electrolytic

2

B

$4

SSH32

Push

Switch,

High

Filter

C217,220,312,535,

541

ECEA10V220

220

10WV

Electrolytic

5

8B

C227

,234,238

ECEA16V10

10

16WV

Electrolytic

3

B

c901

ECEA16V2200

2200

16WV

Electrolytic

1

B

C235

ECEA25V3R3

3.3

25WV

Electrolytic

1

B

C233

ECEA25V4R7

4.7

25WV

Electrolytic

1

B

C703,704

ECEA25V47

47

25WV

Electrolytic

2

B

CHASSIS

eos

SUV108-1

Plastic

Bracket,

Power

Switch

Taloocs

528,531,532.714

SDA32-1

Holder,

Dial

Pointer

1

Cc

712

ECEASOV1

1

50WV

Electrolytic

13

B

SHeee0:2

ous

ners

Sour

4

e

C701,702

ECAG16E3R3

3.3

50WV

Electroytic

2

B

Sco

Palaier,

Dial

:

904,905

ECET35R332SU

|

3300

35WV__

Electrolytic

2

B

Seay

euustion,

Lame

°

e

RGH3-1

Rubber

Cushion,

Lead

Antenna

1

Cc

C525,526

ECAG16ER15

0.15

16WV

Electrolytic

2

B

.

C1,C2

ECKDDS101MD

|

100pF

250W

+5%

Ceramic

SG-250R

2

B

oe

saw

:

°

x

RDS4170A

Spring,

Dial

1

Cc

:

C1

ECKDGS101MB3

|

100pF

250W

+5%

Ceramic

SG-250

1

B

aisles:

poor

i

:

RDR23

Pulley,

Dial

1

Cc

RNW150-2

Washer,

Pulley

5

c

RDZ05-A

Dial

Cord

1

Cc

SDT9302K

Tuning

Shaft

5

B

RDY36

Shaft,

Pulley

5

Cc

VARIABLE

RESISTORS

SHR112

Strain

Relief,

Power

Cord

2

c

RHR9YE9ZA

Latch

1

Cc

VR501~

504

EWK8EA331A54

|

Variable

Resistor,

50kA

eee

Spring.

noe

:

7

Bass

and

Treble

antral

2

A

RG

109

Cusnton.

FANT

2

c

VR505,506

EWFN3AK30A54

|

Variable

Resistor,

50kA,

Volume

SUA

Spacer

A:

Headphone

Vounting

1

8

Control

2

A

SUD74

Spacer

B,

Headphone

Mounting

1

B

VR507

EVHOUA363G54

|

Variable

Resistor,

50kG,

Balance

Sue

es

auide,,

Headphone

;

B

Control

1

‘i

SUD84

Spacer,

Power

Cord

(UK

Only)

1

B

VA301

EVLT4A00B14

|

Semi-fixed

V.R.,

10kB,

wiv

88

Screw.

Fecutcnecn

2

¥

:

XTW3-+

8ZFD

Screw,

Bottom

and

Rear

Cover

4

Cc

Separation

Control

1

A

, ;

XYN4+C10S

Screw,

Cabinet

Mounting

4

Cc

SNE416

Nut,

Headphone

Jack

1

c

S90

Headphone

Jack

1

8B

SMX124

Shield

1

B

SMX132

Barrier

1

B

1

_t

SJF104

Fuse

Holder

1

B

VARIABLE

CAPACITORS

RJF7A

Fuse

Holder,

Power

Circuit

6

B

CT101,102

SCVC158J124K

|

Tuning

Capacitor

1

A

esee0e-t

vack

Board:

FM

ANT

:

.

CT103

ECV1ZW10X32

Trimmer

Capacitor

1

A

Susence

yack.

Boar

dvAM

ANT

:

2

CT201,206

SCV3T12S

Trimmer

Capacitor

2

A

Suree0e

yack

Board.

REC

:

7

SJF9204

Jack

Board,

SPKR

1

c

SJR608

Terminal

Board,

6P

1

Cc

th

REPLACEMENT

PARTS

LIST

Part

No.

Description

Remarks

Part

No.

Description

Remarks

”

°

N

gr

°

2

ND

a

©

SQX5720

instruction

Book,

English

SJA116

Power

Cord

(UK

Only)

..

SG-250

Gama

SQX5722

Instruction

Book,

SJA88

Power

Cord

....

SG-250R

German/Danish/Spanish

SKE282

Guide,

Push

Button

SQX5724

Instruction

Book,

SWK132

Connector

Jack,

5P

German/French/English

$JS6502

Socket,

Phono

DIN

SJF4102

Terminal

Board,

Earth

SJF3204

Jack

Board,

2P

Phono

CABINET

SKA1600

Cabinet

Assembly

(Black)

...

SG-250R

SKA1602

Cabinet

Assembly

....

SG-250R

SKA1604

Cabinet

Assembly

....

SG-25Q

SYU292

Bottom

Cover

Assembly

SYL6-1

Foot

SHS3018

Felt

SKU2260

Rear

Board

....

SG-250R

SKU2261

Rear

Board

....

SG-25Q

SGL88

Indicator,

STEREO

SBN666K

Knob,

Tuning

(Black)

SBN676K

Knob,

Tuning

(Silver)

SBN668K

Knob,

Selector

and

Volume

Control

(Black)

SBN678K

Knob,

Selector

and

Volume

Control

(Silver)

SGL90

Indicator,

RADIO

SGL92

Indicator,

PHONO

SGL94

Indicator,

AUX

SBC196

Push

Button,

Power

(Black)

SBC186

Push

Button,

Power

(Silver)

SBC198

Push

Button

(Black)

RBC95ZA

Push

Button

(Silver)

SYP252

Escutcheon

Assembly

(Black)

...

SG-250R

SYP254

Escutcheon

Assembly

(Black)

...

SG25Q

SYP256

Escutcheon

Assembly

(Silver)

...

SG-250R

aoe

ae

nnn

wun

PACKING

SPN2470

Carton

SPN2466

Pad

(R)

SPN2468

Pad

(L)

Panasonic SG-250R/25Q User manual

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