background image

S701

HOLD

ON

OFF

PRESET

+

S710

TV

S711

FM

S712

AM

OFF

S708

ENTER

MEGABASS

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

        

FB101

FB201

FB301

R18

R205

R105

R11

C107

C207

C24

C29

D703

D401

D402

Q401

C401

C403

C405

C406

R401

R403

R19

 

 

 

 

 

 

        

C35

C311

C310

C39

R107

R207

        

C402

C40

 

 

 

JR1

JR2

C712

 

L4

RV301

L7

       RV601
(TAPE SPEED) 

C16

C9

C12

C17

C404

C303

C308

C305

C502

C104

C204

L5

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T401

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PB3

(R)

PW

GND

(L)

MEGA

MIX IN

MIX IN

GND

+B

TAPE

+B

PRE

GND

VREF

PA1

BASS

PB1

TUNE

COMP

PRE

CTL

TUNER GND

(R)

PA2

PWIN

(L)

MIX OUT

TP

(FM/TV IN)

PWIN

(R)

VREF

(L)

MIX OUT

PWOUT

PWOUT

(R)

(L)

STID

(COM)

PWOUT

GND

GND

PA3

TUNER
VCC

AMP ON

PA0

PB2

VDD

MUTE

VCC

+B

L-CH

R-CH

D1

 

 

 

 

 

L-CH

R-CH

HP601

PLAYBACK HEAD

BCE

AVLS

S304

S304

S303

S303

-2

-1

-2 -1

-2 -1

CrO2/METAL

NORM

LIMIT

NORM

L3

AM

FERRITE-ROD

ANTENNA

ND701

LIQUID CRYSTAL

DISPLAY PANEL

ORG

BLK

WHT

RED

W

V U

COM

M

M601

CAPSTAN/REEL

MOTOR

11

(11)

FX277 : 1-677-908-

FX467/467ST : 1-677-907-

FX277 : 1-677-908-

FX467/467ST : 1-677-907-

 

DRY BATTERY

SIZE "AA"

(IEC DESIGNATION R6)

2PCS, 3V

[MAIN BOARD]  (SIDE B)

        

        

 

 

 

 

 

 

 

PRE

GND

L-CH

R-CH

C30

PRESET

LOCAL

DX

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

A

1

B

C

D

E

F

G

H

L-CH

R-CH

R-CH

L-CH

FWD

REV

HP601

PLAYBACK

HEAD

[HEAD FLEXIBLE BOARD]

[HEAD FLEXIBLE BOARD]

FX277

FX467/FX467ST

02

ECB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q701

R702

R501

Q502

R504

R503

R502

Q501

C501

C702

C704

C705

C707

C708

C709

C710

C711

R718

R720

R717

L702

R605

R606

R607

R304

R710

R106

R206

C703

1  

5  

10  

16  

17 20  25   30  32  

33 

35  

40  

45  

48

49  

50  

55  

60  

64 

R711

R712

R713

R714

R715

R716

IC701

C701

R704

R705

R706

R707

C309

R303

C106

C206

R701

R708

C603

R201

R202

R203

R101

R102

R103

R104

R601

R603

C101

C201

C302

C304

C105

C205

Q301

R305

 

C604

C605

C606

C607

R604

C306

C108

C208

CT1

C22

C301

R301

R10

R13

R14

R16

D3

Q3

C27

C25

C32

C33

 

R3

R4

R5

R6

R7

RV1

RV2

L1

L2

C4

C5

C6

C7

C8

C11

C13

C14

C15

C10

C18

C19

 

   

   

  

R8

R9

R15

D2

D4

C20

C21

C23

C26

C28

C31

C34

TH601

X701

IC702

IC301

IC1

L401

R17

R302

 

C307

R204

FB302

R722

C714

R703

R12

L6

C3

R721

C203

C103

C602

C601

R602

S301

(TAPE ON)

R20

C715

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

1

3

37

40

45

36

48

1

5

10

13

15

20

12

1

5

10 12

25

30

35

24

40

31

35

30

21

25

20

11

15

1

5

10

[MAIN BOARD]  (SIDE A)

11

(11)

FX277

FX467/FX467ST

 

 

R202

R203

R101

R103

R104

R601

C101

C102

C201

C202

R204

C203

C103

J301

i

RV301

VOLUME

w

S709

S705

TUNING–

S702

TP

(VT)

S703

S706

S704

C503

B
E

C

B
E

C

S302

(N/R SW)

FX467/FX467ST

– 15 –

– 16 –

– 13 –

– 14 –

WM-FX277/FX467/FX467ST

D1

F-2

D2

C-18

D3

D-18

D4

D-18

D401

B-6

D402

B-5

D703

B-10

IC1

C-18

IC301

E-14

IC701

E-15

IC702

D-15

Q3

D-18

Q301

F-14

Q401

B-5

Q501

C-13

Q502

B-13

Q701

B-13

Ref. No.

Location

z

 Semiconductor

   Location

4-3. PRINTED WIRING BOARDS

Note:

X

: parts extracted from the component side.

a

: Through hole.

f

: internal component.

b

: Pattern of the rear side.

w

w

w

.

x

i a

o

y

u

1

6

3

.

c

o

m

Q

Q

3

7

6

3

1

5

1

5

0

9

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

2

9

6

5

1

3

9

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

Q

TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for MW-FX277

Page 1: ...pprox 225 g 8 0 oz incl batteries and a cassette Supplied accessories Stereo headphones or Stereo earphones 1 Carrying case with belt clip 1 Design and specifications are subject to change without notice Battery life approximate hours EIAJ Sony alkaline LR6 SG Sony R6P SR Tape playback 25 7 5 Radio reception 40 14 Measured value by the standard of EIAJ Electronic Industries Association of Japan Us...

Page 2: ...o not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the conductor when soldering or unsoldering Notes on chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat TABLE OF CONTENTS SECTION 1 GENERAL LOCATION AND FUNCTION OF CONTROLS This sectio...

Page 3: ...l motor M601 Set Cabinet Front Cabinet center sub ASSY Cassette holder 4 Claw 4 Claw 2 5 1 Claws 1 Claws 3 Claws 1 Claws Main board 1 Screw Orange Black White Red Cabinet center sub ASSY Head flexible board 2 Remove solder 3 Claws 4 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631...

Page 4: ... ASSY P capstan FX467 FX467ST wheel ASSY P capstan Belt How to apply the belt Capstan reel motor M601 3 Screws M1 4 Mechanism deck www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 5: ...ub ASSY 1 2 4 3 1 Insert the spring torsion to the L shape slot as shown in the figure 2 3 Insert the hinge of the Cassette holder 4 Close the Cassette holder then press it 2 5 CASSETTE HOLDER z CAUTIONS DURING ASSEMBLY www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 89249829...

Page 6: ...75V set test tape WS 48A 3kHz 0dB frequency counter 32 Ω phones jack J301 3 1 MECHANICAL ADJUSTMENTS PRECAUTION 1 Clean the following parts with a denatured alcohol moistened swab playback head pinch roller capstan rubber belt 2 Demagnetize the playback head with a head demagnetizer Do not use a magnetized screwdriver for the adjustments 3 These measurement and adjustment should be performed with ...

Page 7: ...stment Location Main board See page 8 0 dB 1µ V Repeat the procedures in each adjustment several times and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors AM RF signal generator 30 amplitude modulation by 400Hz signal Output level as low as possible Put the lead wire antenna close to the set set 32 Ω phones jack J301 level meter R205 R105 C1 C35 C31...

Page 8: ... TV IN 0 01µF MAIN BOARD Side B 1 Connect the frequency counter as shown in the figure 2 Turn the set to 98MHz 3 Adjust RV1 for 76kHz reading frequency counter Standar value 75 8 76 2kHz 3 C25 R4 R6 RV1 L1 L2 C4 C5 C6 C8 C11 C15 C10 8 C19 R9 R15 D2 D4 C20 C21 C26 C28 C31 C34 IC1 R17 L6 37 C3 R20 40 31 35 30 21 25 20 11 15 1 5 10 frequency counter 33K Ω 1 F IC1 7 pin IC1 0 pin µ MAIN BOARD Side A w...

Page 9: ... ON O Radio ON signal output 26 MEGA BASS O MEGA BASS ON signal output 27 MUTE O Mute ON signal output 28 TAPE I Tape ON input 29 PRE CTL O Preamplifier control output 30 MOTOR CTL O Motor control output 31 ID I Destination select input 32 44 S1 13 O LCD segment output 45 48 COM1 4 O LCD common output 49 52 DBR1 4 LCD power supply 53 RESET I Reset input Fixed H 54 TU VCC Not used OPEN 55 VDD Power...

Page 10: ...30 32 33 35 40 45 48 49 50 55 60 64 R711 R712 R713 R714 R715 R716 IC701 C701 R704 R705 R706 R707 C309 R303 C106 C206 R701 R708 C603 R201 R202 R203 R101 R102 R103 R104 R601 R603 C101 C201 C302 C304 C105 C205 Q301 R305 C604 C605 C606 C607 R604 C306 C108 C208 CT1 C22 C301 R301 R10 R13 R14 R16 D3 Q3 C27 C25 C32 C33 R3 R4 R5 R6 R7 RV1 RV2 L1 L2 C4 C5 C6 C7 C8 C11 C13 C14 C15 C10 C18 C19 R8 R9 R15 D2 D4...

Page 11: ...put impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM TV E PB r Waveforms 1 IC702 1 XOUT 2 3 VOLT DIV 0 1 V AC TIME DIV 5 µsec Q401 C Q401 B VOLT DIV 0 5 V AC TIME DIV 0 1 µsec VOLT DIV 10mV AC TIME DIV 0...

Page 12: ...d packing materials are given in the last of this parts list Ref No Part No Description Remark Ref No Part No Description Remark 5 1 CABINET SECTION 1 3 044 867 01 CABINET FRONT FX467 FX467ST 1 3 044 867 11 CABINET FRONT FX277 2 3 044 868 01 WINDOW LCD FX467 FX467ST 2 3 044 868 11 WINDOW LCD SLIVER FX277 2 3 044 868 21 WINDOW LCD BLUE FX277 3 3 044 869 01 KNOB HOLD 4 3 044 870 01 BUTTON PRESET 4 3...

Page 13: ...ER D SELECTION FX467 FX467ST 113 X 3376 169 1 CLUTCH ASSY 114 3 920 990 01 SPRING UD COMPRESSION 115 3 921 335 01 WASHER LEVER 116 3 923 530 01 SLEEVE M 117 3 728 091 01 WASHER STOPPER 118 3 921 052 11 LEVER A DETECTION FX467 FX467ST 119 3 920 994 11 SPRING D SELECTION FX467 FX467ST 120 3 929 419 01 LEVER BR DETECTION FX467 FX467ST 121 3 703 816 31 SCREW M1 4 SPECIAL HEAD 122 3 921 023 01 LEVER M ...

Page 14: ...CERAMIC CHIP 1000PF 5 25V C101 1 162 962 11 CERAMIC CHIP 470PF 10 50V C102 1 162 962 11 CERAMIC CHIP 470PF 10 50V FX467 C103 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C104 1 126 153 11 ELECT 22uF 20 6 3V C105 1 115 156 11 CERAMIC CHIP 1uF 10V C106 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C107 1 115 156 11 CERAMIC CHIP 1uF 10V C108 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C201 1 162 962 11 CERAMIC ...

Page 15: ...216 813 11 METAL CHIP 220 5 1 16W R14 1 216 825 11 METAL CHIP 2 2K 5 1 16W R15 1 216 845 11 METAL CHIP 100K 5 1 16W R16 1 216 845 11 METAL CHIP 100K 5 1 16W R17 1 216 833 91 METAL CHIP 10K 5 1 16W R18 1 216 845 11 METAL CHIP 100K 5 1 16W R19 1 216 833 91 RES CHIP 10K 5 1 16W R20 1 216 821 11 METAL CHIP 1K 5 1 16W R101 1 216 835 11 METAL CHIP 15K 5 1 16W R102 1 216 835 11 METAL CHIP 15K 5 1 16W R10...

Page 16: ... SMALL TYPE TAPE ON S302 1 762 742 61 SWITCH DETECTION SMALL TYPE N R SW FX467 FX467ST S303 1 692 298 11 SWITCH SLIDE DX LOCAL METAL NORM S304 1 692 298 11 SWITCH SLIDE AVLS S701 1 572 922 11 SWITCH SLIDE HOLD TRANSFORMER T401 1 426 917 11 TRANSFORMER DC DC CONVERTER THERMISTOR TH601 1 803 751 21 THERMISTOR POSITIVE VIBRATOR X701 1 579 615 11 VIBRATOR CRYSTAL 75kHz MISCELLANEOUS 19 1 694 218 31 CO...

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