Sharp WF-1000W Bedienungsanleitung

WF-1000W

– 1 –

CONTENTS Page

SPECIFICATIONS ...............................................................................................................................................................2

VOLTAGE SELECTION.......................................................................................................................................................2

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ...................................................................................................2

NAMES OF PARTS .............................................................................................................................................................3

FITTING OF DIAL POINTER ...............................................................................................................................................4

DISASSEMBLY....................................................................................................................................................................5

ADJUSTMENT .....................................................................................................................................................................6

NOTES ON SCHEMATIC DIAGRAM ..................................................................................................................................7

TYPES OF TRANSISTOR AND LED...................................................................................................................................7

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD.................................................................................................8

PARTS GUIDE / EXPLODED VIEW

WF-1000W(BK)

WF-1000W(S)

SERVICE MANUAL

SHARP CORPORATION

No. S0957WF1000WK

• In the interests of user-safety the set should be restored to its original

condition and only parts identical to those specified should be used.

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

WF-1000W

– 2 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER

TO THE OPERATION MANUAL.

QACCE0007AW00

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCA0001SJ00

QPLGA0253AFZZ

VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage

as follows: Slide the AC power supply socket to the visible indication of the side of your local voltage.

SPECIFICATIONS

●General

Power source: AC 110-127 V/220-240 V,

50/60 Hz

DC 15 V ["D" size

(UM/SUM-1, R20 or HP-2)

battery ×10]

Power

consumption: 28 W

Output power: PMPO; 200 W (total)

(AC operation)

MPO; 50 W (25 W + 25 W)

(AC operation, 10 % T.H.D.)

RMS; 25 W (12.5 W + 12.5

(DC operation, 10 % T.H.D.)

Input terminal: Mixing microphone;

600 ohms

CD/LINE; 350 mV/47 kohms

Output terminal: Headphones; 16-50 ohms

(recommended; 32 ohms)

Dimensions: Width; 300 mm (11-13/16")

Height; 240 mm (9-1/2")

Depth; 220 mm (8-11/16")

Weight: 3.8 kg (8.4 lbs.) without bat-

teries

●Radio section

Frequency range: FM; 88 - 108 MHz

SW1; 2.3 - 7.3 MHz

SW2; 7.3 - 22 MHz

MW; 526.5 - 1,606.5 kHz

●Tape recorder section

Frequency response: 60 - 12,000 Hz (Normal tape)

Signal/noise ratio: 40 dB (TAPE 1, recording/playback)

55 dB (TAPE 2, playback)

Wow and flutter: 0.15 % (WRMS)

Motor: DC 9 V electric governor

Bias system: AC bias

Erase system: Magnet erase

●Speaker section

Type: 2-way type

Speakers: 12 cm (4-3/4") free-edge speaker ×2

Tweeter ×2

Impedance: 8 ohms

Dimensions: Width; 235 mm (9-1/4")

Height; 262 mm (10-5/16")

Depth; 220 mm (8-11/16")

Wei

ht: 1.8 k

(

4.0 lbs.

)

/each

Specificationsfor thismodel aresubject tochange without

prior notice.

WF-1000W

– 3 –

NAMES OF PARTS

11.

Graphic Equalizer Controls

12.

Power Indicator

13.

Volume Control

14.

FM Stereo Indicator

15.

Fine Tuning Control

16.

Built-in Microphone

17.

Mixing Microphone Socket

18.

Headphone Socket

19.

Function Selector Switch

10.

(TAPE 1) Cassette Compartment

11.

Tuning Control

12.

Extra Bass Switch

13.

Band Selector Switch

14.

Dubbing Speed/Built-in Microphone/FM Mode Switch

15.

(TAPE 2) Cassette Compartment

16.

(TAPE 1) Record Button

17.

(TAPE 1) Play Button

18.

(TAPE 1) Rewind Button

19.

(TAPE 1) Fast Forward Button

20.

(TAPE 1) Stop/Eject Button

21.

(TAPE 1) Pause Button

22.

(TAPE 2) Play Button

23.

(TAPE 2) Rewind Button

24.

(TAPE 2) Fast Forward Button

25.

(TAPE 2) Stop/Eject Button

26.

FM/SW Telescopic Rod Aerial

27.

CD/Line Input Sockets

28.

Beat Cancel Switch

29.

Speaker Terminals

30.

AC Voltage Selector

31.

AC Power Input Socket

32.

Battery Compartment

33.

Tweeter

34.

Bass Reflex Duct

35.

Woofer

36.

Speaker Release Lever

37.

Speaker Wire

12 4 5

2423

2019

26 27 28

35 37

WF-1000W

– 4 –

FITTING OF DIAL POINTER

Figure 4-1

1. Remove the Main PWB, the Graphic Equalizer PWB, the

Volume PWB and the Fine Tuning PWB. (See Figure 5-2

in the "Disassembly" on page 5.)

2. Remove the dial pointer guide and PWB.

3. Insert the dial pointer from , lead it under , hang it on

the tuner gear and then pass it through .

4. Replace the Main PWB, the Graphic Equalizer PWB, the

Volume PWB and the Fine Tuning PWB.

5. Rotate the tuning knob in the arrow direction until it stops.

(Set the tuner variable capacitor to "0" point (F-LOW

state).)

6. Adjust the dial pointer so that its stopper becomes the

Figure 4-2 position. (Adjust the engagement of the pointer

gearandthetunergeartogettheminimumspacebetween

the PWB and the stopper.) This position is the "0" point.

7. Screw up the PWB and the dial pointer guide.

Fine Tuning

PWB

Dial Pointer(211)

"0" Point

Dial Pointer(211)

Tuner

Gear

Tuning Knob

Front Cabinet

PWB

Dial Pointer Guide

(218)

Screw(601)

ø3x10mm

Main PWB

Volume PWB

Graphic Equalizer

PWB

Figure 4-2

Tuner Gear

Stopper

Main PWB

Variable Capacitor

Dial Pointer

PWB

Make the minimum space.

Front Cabinet

Pointer Gear

WF-1000W

– 5 –

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling

the unit and reassembling it, to keep it safe and ensure

excellent performance:

1. Take cassette tape out of the unit.

2. Be sure to remove the power supply plug from the wall

outletbeforestartingtodisassembletheunitandremove

the batteries from the unit.

3. Take off nylon bands or wire holders where they need

to be removed when disassembling the unit. After

servicingthe unit,be suretorearrangetheleads where

they were before disassembling.

4. Take sufficient care on static electricity of integrated

circuits and other circuits when servicing.

STEP REMOVAL PROCEDURE FIGURE

1 Front Cabinet/ 1. Battery Compartment Lid. 5-1

Rear Cabinet ................................. (A1)x1

2. Screw ................... (A2)x3

3. Screw ................... (A3)x4

4. Socket .................. (A4)x1

2 Main PWB/ 1. Knob..................... (B1)x1 5-2

Graphic Equalizer 2. Socket .................. (B2)x3

PWB/ 3. Screw ................... (B3)x5

Volume PWB/ 4. Screw ................... (B4)x2

Fine Tuning PWB 5. Mic ....................... (B5)x1

3 Tape mechanism 1. Open the cassette holder. 5-2

2. Screw ................... (C1)x6

4 Power PWB/ 1. Screw ................... (D1)x3 5-3

Terminal A PWB/ 2. Screw ................... (D2)x2

Terminal B PWB 3. Bracket................. (D3)x1

4. Screw ................... (D4)x2

5. Hook..................... (D5)x2

Figure 5-4

Figure 5-2

Figure 5-1

Figure 5-3

STEP REMOVAL PROCEDURE FIGURE

1 Speaker 1. Screw ................... (E1)x5 5-4

2. Front Panel .......... (E2)x1

3. Screw ................... (E3)x4

MAIN UNIT

SPEAKER UNIT

(A1)x1

(A4)x1

Front

Cabinet

Rear

Cabinet

(A2)x1

ø3x6mm

(A2)x1

ø3x6mm

(A3)x4

ø3x20mm

(A2)x1

ø3x10mm

Main PWB

Rear Cabinet

(D1)x3

ø3x10mm

(D2)x2

ø4x16mm

(D4)x2

ø3x10mm

Power

Transformer

Voltage Selector

AC Socket

(D3)x1

Power

PWB

Terminal B

PWB Terminal A

PWB

(D5)x2

(E3)x4

ø3x10mm

(E1)x5

ø4x16mm

Speaker Box

Main Unit

Speaker

Release

Lever

Speaker Cord

Holder Speaker

Cord

Driver

Woofer

Tweeter

Front Panel

(E2)x1

Front Cabinet Washer

Nat (B1)x1

(B4)x2

ø3x10mm

(C1)x4

ø3x10mm

(B3)x5

ø3x10mm (C1)x2

ø3x10mm Tape

Mechanism

(B5)x1

(B2)x3

Cassette

Holder

(Left/Right)

Open

Fine Tuning PWB Volume

PWB Graphic

Equalizer PWB

Main PWB

WF-1000W

– 6 –

ADJUSTMENT

Specified Value

MECHANISM SECTION

• Driving Force Check

Specified Value

• Torque Check

Play: TW-2111 30 to 70 g.cm 30 to 70 g.cm

Fast Forward: TW-2231 Over 55 g.cm Over 55 g.cm

Rewind: TW-2231 Over 55 g.cm Over 55 g.cm

• Head Azimuth

MTT-114 Headphones Socket

(Load resistance: 32 ohms)

Instrument Connection

• Tape Speed (Normal only)

Instrument

Connection

MTT-111 Tape 1,2:VR102 3,000 ±60 Hz Headphones

Socket

(Loadresistance:

32 ohms)

Torque Meter

Test Tape

• Playback Amplifier Sensitivity Check

Play: TW-2412 Tape 1: Over 60 g

Tape 2: Over 60 g

Tape 1 Tape 2

Adjustment

Point Specified

Value

Specified value Instrument Connection

MTT-118 2.5 V ±3 dB Speaker terminal

(Load resistance: 8 ohms)

Test tape

Figure 6 VCO FREQUENCY TEST CIRCUIT

TUNER SECTION

fL: Low-range frequency

fH: High-renge frequency

Specified value Instrument Connection

VR1 76 kHz ±200 Hz Pin 13, Pin 21 and ground

of IC2

Adjustment

Point

• VCO Frequency

Note:

AfterpreparingthetestcircuitshowninFig.6,connectthePin

13, Pin 21 and ground of the IC2 with the test circuit, and

measure the value.

• FM IF/RF

Specified Value/

Adjusting

Point

Test Stage

FM IF L9 Input: FM Antenna

FM Detection L10 Output:Pin 9 of IC2

FM Band fL: L1 Input: Antenna

Coverage fH: TC1 Output: Headphone Socket

FM Tracking fL(88.0 MHz): L2 (Load resistance:

fH(108 MHz): TC2 32 ohms)

Instrument

Connection

• AM IF/RF

Test Stage Specified Value/

Adjusting

Point

Instrument

Connection

AM IF L11

MW Band fL: L6

Coverage fH: TC3

MW Tracking fL(600 kHz): L3

fH(1,400 kHz):TC4

SW1 Band fL(2.3 MHz): L7

Coverage fH(7.3 MHz): TC5

SW1 fL(2.6 MHz): L4

Tracking fH(6 MHz): TC6

SW2 Band fL(7.3 MHz): L8

Coverage fH(22 MHz): TC7

SW2 fL(8.5 MHz): L5

Tracking fH(19 MHz): TC8

Input: Antenna

Output: Pin 9 of IC2

Input: Antenna

Output: Headphone Socket

(Load resistance

32 ohms)

10 pF

1M ohm 10K ohm TO FREQUENCY

COUNTER

Pin 13 of IC2 Pin 21 of IC2

FET: 2SK212

(or Other 2SK Type FET.)

0.1 µF

Specified Value

Beat Cancel A: 104 ±4 kHz

B: 94 ±4 kHz

C: 100 ±4 kHz

DECK SECTION

• Bias Oscillation

• Beat Cancel Switch: C

L301 100 kHz + 4 kHz Pin 1 of CNS102

Adjustment Point Specified value Instrument

Connection

WF-1000W

– 7 –

Figure 7-1 ADJUSTMENT POINTS

NOTES ON SCHEMATIC DIAGRAM

• Resistor:

Todifferentiate the unitsof resistors, Thesymbol asKand

Mareused:thesymbolKmeans1000ohmandthesymbol

M means 1000 kohm and the resistor without any symbol

is an ohm resistor. The resistor designated “Fusible” is a

fuse type resistor.

• Capacitor:

To indicate the unit of capacitor, a symbol P is used: this

symbol P means pico-farad and the unit of the capacitor

without such a symbol is microfarad. As to electrolytic

capacitor,the expression“capacitance/withstand voltage”

is used.

(CH),(RH),(UJ): Temperature compensation

(ML): Mylar type

(S): Styrol type

• Theindicated voltage ineach sectionisthe onemeasured

by Digital Multimeter between such a section and the

chassis with no signal given.

• Schematic diagram and Wiring Side of P.W. Board for this

modelare subjecttochange forimprovement withoutprior

notice.

• Parts marked with “ ” ( ) are important for

maintaining the safety of the set. Be sure to replace these

parts with specified ones for maintaining the safety and

performance of the set.

DESCRIPTION POSITION

SW1 BAND SELECTOR FM

SW101 RECORD/PLAYBACK PLAYBACK

SW102 BEAT CANCEL A

SW103 DUBBING SPEED/MIC/ MIC/FM MONO

FM MODE

SW401 X-BASS ON

SW501 FUNCTION SELECTOR CD/LINE

SW501A TAPE 2 MAIN OFF

SW502 TAPE 1 MAIN OFF

SW503 TAPE 2 PLAY OFF

SW601 VOLTAGE SELECTOR AC220-240V

REF. NO.

Figure 7-2 TYPES OF TRANSISTOR AND LED

333ID

VIEW

FRONT

KTA1271 Y

KTC3199 GR

KTC3203 Y

VIEW

FRONT

E B C

SW401

CF2

IC2

TC6

SW1

TC5

SW103

TC7

TC8

L11

CF3

IC1

CF1

IC501

CNP103

IC502

VR102

VR1 L10

CNP501

SPEAKER TERMINALS

SW1

TRACKING fH

TC1

TC2

TC3

TC4

TRACKING fH

MW BAND

COVERAGE fH

FM TRACKING

FM BAND

COVERAGE

SW2

TRACKING

SW1

TRACKING fL

AM IF FM IF

FM DETECTION

VCO

SW1 BAND

COVERAGE fH

SW2 BAND

COVERAGE fH

MW BAND

COVERAGE fL

TAPE SPEED

MAIN PWB

L301

SW102

BIAS OSCILLATION

WF-1000W

– 8 –

• NOTES ON SCHEMATIC DIAGRAM can be found on page 7.

1234 5 6

Figure 8 SCHEMATIC DIAGRAM (1/2)

D162

DS1SS133

R177

D159

DS1SS133

C136

0.0027

(ML)

C135

0.0027

(ML) R111

22K

C43

220P

TC3

TC5

TC7

C20

1500P

(P.P)

C27

0.0047

(P.P)

R10

R11

SW1-G

BAND

SELECTOR

C30

0.022 R13

100

SW1-H

BAND

SELECTOR

C42

0.022

C21

(UJ)

C26

0.022

R182

SW501-C

FUNCTION

SELECTOR

SW501-B

FUNCTION

SELECTOR

R181

SW501-A

FUNCTION

SELECTOR

C153

0.01

(ML)

R151

2.2K

C152

10/16

R152

560

C155

1/50

C154

10/16

R153

220K

C151

0.33/50

0.022

DS1SS133

5P(CH)

IC1 TA7358AP

C12

3P(CH)

C10

15P(CH)

L1 TC1

VC1

C13

0.022

330K R7

820K

C22

0.022

C23

220/10

C24

0.022

C25

0.022

C29

22/16

C39

1/50

C41

1/50

C40

1/50

R12

CF2

10.7MHz

L11

CF3

455kHz

R18

2.7K

R17

2.7K

IC2

FM/AM IF MPX. LA1805

SW103-B

FM MODE

VR1

10K(B)

C18

10/16 C17

0.022

100 R19

15K

TP1

VCO

76kHz

R14

100K

C34

470P

C36

1500P

(P.P)

C35

3.3/50

C33

3.3/50

C31

0.0047

(ML)

12K

L10

R15

10K R16

10K

C37

0.012

(ML)

C38

0.012

(ML)

R20

C182

1/50

C181

1/50

R184

330K

R183

330K

C158

4.7/50 C159

4.7/50

D155

DS1SS133

D156

DS1SS133

D158

DS1SS133

D153

DS1SS133

D154

DS1SS133

R301

100

R134

82K

R133

82K

R129

22K

R130

22K

R112

22K

R127

47K

R128

47K

R174

22K

R173

10K

Q156

KTC3199 GR

SW103

DUBBING SPEED/

MIC

R172

10K

D152

DS1SS133

D151

DS1SS133

R166

560

R167

10K

R169

10K

R168

10K

Q153

KTC3199 GR

C156

47/16

R157

47K

R162

47K R160

4.7K

J151

MIC

R155

39K

C157

1/50

Q152

KTC3199 GR

Q151

KTC3199 GR

MIC AMP.

R156

R161

330

R511

10K

VC3

TC9

R154

560

SW102

BEAT

CANCEL

C307

150P C306

390P

C304

0.022 C302

0.0022

(ML)

R304

C301

100/16

R303

100

C116

4.7/50

SO351

CD/LINE

R131

4.7K

R132

4.7K

C14

5P(CH)

C19

300P

(P.P)

SW1-E

BAND

SELECTOR

VC2

TC2

CF1

FM BAND PASS

FILTER

0.0047 C8

0.022

0.0047

0.001

SW1-D

BAND SELECTOR

VC4

TC4

SW1-B

BAND

SELECTOR

SW1-C

BAND

SELECTOR

TC6

TC8

C15

0.022

24P

(CH)

C126

4.7/50

L103

22mH

C131

120P

R135

15K

D101

DS1SS133 R100

150 C160

22/16

R353

2.2K

R354

2.2K

R351

47K

R352

47K

DS1SS133

SW1-A

BAND

SELECTOR

C130

22/16

CNP101

CNP102

IC101

RECORD/PLAYBACK AMP. TA8189N

C133

150P

C134

150P

C108

330P

C110

10/16 R108

5.6K

C106

330P C112

0.033

(ML)

C102

470P C104

820P

R106

180K

R104

56K

R102

R110

4.7K

C114

4.7/50

R103

56K

C101

470P

C105

330P

C103

820P

R107

5.6K

C111

0.033

(ML)

R105

180K

R109

4.7K

C109

10/16

C113

4.7/50

C107

330P

R136

15K

C132

120P

L104

22mH

R121

10K

R101

C115

4.7/50

C127

1000/10

C128

2.2/50

C121

330P

R115

2.2K R117

330K

C117

10/16

C119

0.015

(ML)

C123

0.0015

L101

2.7mH

C125

4.7/50

R114

180K

R116

2.2K

C122

330P

R118

330K C120

0.015

(ML)

C118

10/16 R120

390

C124

0.0015

R122

10K

C129

22/16

R123

10K

R124

10K

R125

C305

0.0015

(ML)

L301

R306

47 R305

27K

Q301

KTC3203 Y

C303

0.0056

(ML)

R302

100

R113

180K

L102

2.7mH

R119

390

SW101-F

RECORD/PLAYBACK

SW101-A

SW101-B SW101-C

SW101-D

SW101-E

RECORD/

PLAYBACK

SW1

L3,L4: MW/SW1

BAR ANTENNA

R-CH

L-CH

R-CH

ERASE HEAD

PLAYBACK HEAD

TAPE2

RECORD/

PLAYBACK HEAD

TAPE1

L-CH

FM FRONT END

FINE

TUNING

IF AD

TAPE

SW2 ANTENNA

SW2

CNS102 CNS101

SW1

SW2

MPX

DET OUT

IF AD

AM IN

AM IF

AM OUT

FM DET

AM MIX

AM RF

OSC

FM/SW

ROD

ANTENNA

CONDENSER

MIC

FM STEREO FM MONO

MIC151

BUILT-IN

MICROPHONE

SW2 OSC.

SW1 OSC.

CD/LINE

TAPE

TUNER

CD/LINE

MIC

NORMAL

HIGH

TUNER

CD/LINE

SW2

SW1

SW2

SW1

GND

ALC

REC IN

REC

OUT

REC IN

REC NF

REC

M/N

GND1

VCC

MIX

A/B

PRE

PRE OUT

OUT

MATAL

NFCH2/BCH2/A

CH1/B

CH1/A

TRACKING

MW OSC.

FM OSC.

DETECTION

MIX

RF AMP

OSC

L-CH R-CH

FM IF

IN AGC GND AM/FM

VCO

MO/ST

STB

21 20 19 18 17 16 15 14 13

4321

432

24 23 22 21

321

C11

22P

(CH)

C32

0.0082

(ML)

3.9K

20 19 18 17 16 15 14 13 12

2324

R P

L-CH

R-CH

IC1 TA7358AP

SW101

RECORD/

PLAYBACK

SW103-A

SW1-F

BAND

SELECTOR

FM IF AM IF

BIAS OSC.

123

FM SIGNAL MW/SW1/SW2 SIGNAL PLAYBACK SIGNAL RECORD SIGNAL

FM IF

AM IF

VCO

MIC AMP.

LINE AMP.

BIAS OSC.

MAIN PWB-A1/VOLUME PWB-A3/FINE TUNING PWB-A4

1.3V

0.6V

1.3V

3.2V

0.7V

0V(0V)

OTHER:NORMAL

( ): HIGH

0V(3.4V) 0V(0V)

(0.1V)

(5.5V)

(0.7V)

0.7V

1.5V 5.8V 1.4V

5.8V

5.0V

5.7V

5.8V

L-CH

R-CH

(0.6V)

(0V)

( ): RECORD

IC101 : VOLTAGE

PLAY

REC

0V 0V

0V 1.3V

1.3V 1.3V

1.3V 1.4V

1.4V 1.4V

1.4V 0V

0V 0V

0V 2.1V

2.1V 1.3V

1.3V 0V

0V 0V

123456789101112

0.9V

0.9V 0V

0V 1.3V

1.3V 2.1V

2.1V 1.4V

1.5V 5.2V

5.2V 2.1V

0V 1.4V

1.4V 1.3V

1.3V 1.3V

1.3V 0V

0V 0V

13 14 15 16 17 18 19 20 21 22 23 24

PLAY

REC

WF-1000W

– 9 –

Figure 9 SCHEMATIC DIAGRAM (2/2)

78 9101112

R212

R211

R442

15K

R441

15K

R206

10K C204

1/50

R204

2.2K

VR205-B

100K(B)

(10kHz)

VR204-B

100K(B)

(2kHz)

VR203-B

100K(B)

(500Hz)

R205

10K

R209

100K

VR205-A

100K(B)

(10kHz)

VR204-A

100K(B)

(2kHz)

VR203-A

100K(B)

(500Hz)

R203

2.2K C203

1/50

R210

100K

C514

1/50

IC502

C509

0.022

C508

100/16

C513

1/50

D401

DS1SS133

R431

27K C433

0.022

L501

47µH

SW501-D

FUNCTION

SELECTOR

R513

10K

182

C424

47/25

C510

3300/25

Q501

KTC3203 Y

C507

0.022

DZ501

DZ8.2BSB

C504

100/16

R504

680

R503

100

C502

0.022

C505

100/16 C506

0.022

IC501

VOLTAGE REGULATOR

KIA7812P

LED1

333ID

R518

LED502

333ID

C221

4.7/50

C217

0.47/50 C213

0.33/50 C209

0.082

(ML)

C205

0.01

(ML)

C219

0.039(ML)

C215

0.0056(ML)

C211

0.0015(ML)

C207

470P

IC201 GRAPHIC EQUALIZER BA3822LS

C208

470P

C202

4.7/50

R202

C222

4.7/50

C212

0.0015(ML)

C216

0.0056(ML)

C220

0.039(ML)

C210

0.082

(ML) C218

0.47/50

C214

0.33/50

C206

0.01

(ML)

C201

4.7/50

R201

R200

330

C200

220/16

F601

T4A L

250V

C651

0.022

C653

0.022

C654

0.022

D651

TS4B03GM

C652

0.022

C180

100/16

R188

3.9K

R187

3.9K

C185

1/50

R180

560

C186

1/50

C182

1/50

C181

1/50

R184

330K

Q182

KTC3199 GR

R183

330K Q181

KTC3199 GR

C183

220P R185

220

R186

220

C184

220P

R511

10K

J401

HEADPHONES

CNP501

SPEAKER

TERMINALS

C423

10/16

R437

120

R438

120

C430

10/16

C429

10/16

C426

0.1(ML) R434

2.2

R436

2.2

C428

0.1

(ML)

C427

0.1

(ML)

R435

2.2

IC402

LA4663

POWER AMP.

C425

0.1(ML) R433

2.2

C511

0.022

Q502

KTC3199 GR

R512

10K

R516

3.9K

Q503

KTC3199 GR

R514

100K

C512

100/16

Q504

KTA1271 Y

VR102

470 R515

CNP103

R418

22K

R417

22K

C420

4.7/50

C419

4.7/50

Q404

KTC3199 GR

POWER MUTE

Q403

KTC3199 GR

POWER MUTE

R425

R426

R428

4.7K

R427

4.7K

C418

22/16

R429

100K

VR401-A

50K(B)

VR401-B

50K(B)

C416

0.15

(ML)

R419

3.3K

C414

0.001

(ML)

C413

0.001

(ML)

R420

3.3K

C415

0.15

(ML)

R416

R415

CNP601

CNS601

SW401

X-BASS

POWER

R-CH

8 Ohm

L-CH

IC402

CNS103

SP404

TWEETER

SP403

TWEETER

SP402

WOOFER

SP401

WOOFER

SO601

AC POWER

INLET

SOCKET

AC110-127V/

AC220-240V,

50/60Hz

SW601

VOLTAGE SELECTOR

AC220V-240V

AC110V-127V

-OUT2

-OUT1

+OUT2

+OUT1

OUT IN

SW502

TAPE1 MAIN

SW503

TAPE2 PLAY

BATTERYES DC15V

["D" SIZE(UM/SUM-1,

R20 or HP2)

BATTERY x 10]

M501

TAPE

MOTOR

SW501A

TAPE2 MAIN

OUT

- M

5 8

T601

POWER

TRANSFORMER

C503

0.022

TAPE

SPEED

R517

56K

STEREO

L-CH

R-CH

GRAPHIC EQUALIZER

ON OFF

TAPE

TUNER

CD/LINE

GND

VOLTAGE

REGULATOR

KIA7809P

GND

SO601

SW1

TRACKING fH

fL TC6

SW2

TRACKING fH

fL TC8

SW1 BAND

COVERAGE fH

fL TC5

SW2 BAND

COVERAGE fH

fL TC7

TRACKING fH

fL TC4

MW BAND

COVERAGE fH

fL TC3

L6 FM BAND

COVERAGE fH

fL TC1

L-CH

R-CH

GND

TRACKING fH

fL TC2

VOLUME

POWER PWB-A7

TERMINAL B

PWB-A6 TERMINAL A

PWB-A5

GRAPHIC EQUALIZER PWB-A2

GRAPHIC

EQUALIZER

GRAPHIC

EQUALIZER

VOLTAGE

REGULATOR

Q502~Q504:

TAPE SPEED CONTROL

GND

L-CH

R-CH

0.2V

0.8V

0.2V

0.8V

OTHER:NORMAL

( ): HIGH

0V(0V)

0.7V(0V)

0V(0.7V)

0V(0V)

0V(7.8V)

0.7V(0V)

8.4V(8.4V)

8.4V(6.2V)

7.8V

(7.9V)

7.4V 12V

15V

12V

15V

0.7V

4.5V

5.1V

4.5V

5.1V

4.5V

5.1V

4.5V

5.1V

3.5V

2.7V

5.5V

14.2V

6.5V

15V 15V

6.9V

IC502

IC501

R-CH

123

BI1 BI2

IC2 : VOLTAGE

MW/SW1/SW2

1.6V

1.7V 1.6V

1.7V 5.8V

6.5V 0.2V

1.4V 1.6V

1.7V 0V

0V 10.7V

10.7V 0V

0V 2.4V

2.4V 2.4V

2.4V 5.1V

6.4V 0.9V

0.9V

123456789101112

1.1V

0V 2.1V

1.9V 1V

1.8V 1.8V

1.8V 1.6V

1.7V 1.6V

1.6V 0.4V

1.1V 5.8V

6.3V 5.8V

6.3V 0.5V

1.7V 1.6V

1.7V 1.4V

1.6V

13 14 15 16 17 18 19 20 21 22 23 24

MW/SW1/SW2

WF-1000W

– 10 –

1234 5 6

Figure 10 WIRING SIDE OF P.W.BOARD (1/3)

M501

TAPE

MOTOR

SW503

TAPE2

PLAY

SW501A

TAPE2

MAIN

SW502

TAPE1

MAIN

CNS103

CNS102

CNS101

ERASE

HERAD

WH BK

RECORD/PLAYBACK

HEAD

TAPE 2

TAPE 1

COLOR TABLE

RD(R)

WH(W)

BROWN

RED

ORANGE

YELLOW

GREEN

BLUE

VIOLET

GRAY

WHITE

BLACK

PINK

FM/SW ROD ANTENNA (253)

C217

VR203

VR204

VR205

C206

C208 C210

C218

C214

C220

C216

C212

IC201

C200

C213

C209 C211

C219

R200

C201

C202

R202

C221

C205 C207

C203

C204

R204

R205

R203

C222

LED502

R206

R201

C215

R518

C414

C416

R420

R419

C413

C415

LED1

FW1 VR401

VOLUME

R212

TC9

FINE TUNING

PWB-A4

VOLUME

PWB-A3

GRAPHIC

EQUALIZER

PWB-A2

FW2

(249)

TC9

FINE TUNING

VR203

500Hz

GRAPHIC

EQUALIZER

VR204

2kHz

VR205

10kHz

WH BK

PLAYBACK HEAD

R209

R210

R211

RD YL

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