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WM-FX673/FX877
SERVICE MANUAL
Ver 1.0 1999. 03

Canadian Model AEP Model UK Model Australian Model
WM-FX673

E Model
WM-FX673/FX877

Chinese Model Tourist Model
WM-FX877
Photo: WM-FX673

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.

Model Name Using Similar Mechanism Tape Transport Mechanism Type

WM-EX670/EX672 MT-WMEX672-162

SPECIFICATIONS

RADIO CASSETTE PLAYER
MICROFILM

TABLE OF CONTENTS 1. 2. 3. 4. 5. 6.
6-1. 6-2. 6-3. 6-4. 6-5.

SERVICING NOTES ............................................... 3 GENERAL ................................................................... 5 DISASSEMBLY ......................................................... 7 MECHANICAL ADJUSTMENTS ....................... 12 ELECTRICAL ADJUSTMENTS ......................... 12 DIAGRAMS
Block Diagram ­ TUNER Section ­ ............................. 15 Block Diagram ­ MAIN Section ­ ................................. 17 Printed Wiring Board ...................................................... 19 Schematic Diagram ......................................................... 23 IC Pin Function Description ........................................... 30

7. 8.

EXPLODED VIEWS ................................................ 32 ELECTRICAL PARTS LIST ............................... 34

Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do 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 damaged by heat.

SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

­2­

SECTION 1 SERVICING NOTES
This set detects the rotation of the idler gear (A) (side S) using the PH1 (photo reflector). The PH1 is mounted on the MAIN board, therefore the idler gear (A) (side S) cannot be detected with the MAIN board removed. As a result, the motor (M601) cannot be controlled, causing malfunction. Further, the DIRECTION switch (S1) is also mounted on the MAIN board, and with the board removed, the mechanism position cannot be detected and the operation is not changed over. Therefor, when the voltage check is executed with the MAIN board removed, follow the procedure provided below. 1. Setting (1) Refer to "3. DISASSEMBLY", and remove the MAIN board. (2) Connect the MAIN board to the motor (M601) and the plunger (PM901) using jumper wires. These can be connected easily with the use of the extension tool (Part No. 1-769143-11) (ten in one set). (3) Short the TAPE DETECT switch (S901-1) terminals and the ATS switch (S901-2) terminals. (4) Connect the AF oscillator to the Q15-1 (COLLECTOR) and the TP23 (GND). (5) Supply 1.3 V to the battery terminals using the regulated power supply. 2. Preset state To set the PLAY, FF, REW modes, the preset state must be set. (1) Check that the slider (NR) and the DIRECTION switch (S1) are set to the center position. If not, set the preset state as follow. (2) Move the DIRECTION switch (S1) to the side, which the slider (NR) is facing. (3) The slider (NR) will move when the regulated power supply switch is set to OFF once and then set to ON. Move the DIRECTION switch (S1) according to this timing and set to the center position.
­ MAIN Board (side B) ­ TAPE DETECT (S901-1) ATS (S901-2)

3. FF, REW modes (1) Check that the preset state is set. (2) Input the square wave or sine wave to the Q15-1 (COLLECTOR) and the TP23 (GND). (3) Press the [ RADIO OFF] button (S3) to set the STOP mode. p (4) Press the [FF AMS] button (S4) or the [REW AMS] button (S5). 4. PLAY mode (1) Check that the preset state is set. (2) Input the square wave or sine wave to the Q15-1(COLLECTOR) and the TP23 (GND). (3) Press the [ RADIO OFF] button (S3) to set the STOP mode. p (4) Press the [ REPEAT] button (S9) will move the slider 9( (NR) once towards the side R and then to the side F. Move the DIRECTION switch (S1) according to this timing will 9( set the PLAY mode (side F). Press the [ REPEAT] button (S9) another time and move the DIRECTION switch (S1) according to the movement of the slider (NR) will set the PLAY (R mode).
Note 1: If the above fails, perform from preset again. 9( Note 2: Use the [ REPEAT] (S9), [ RADIO OFF] (S3), p [FF AMS] (S4), and [REW AMS] (S5) buttons on the remote controller as much as possible. If no remote controller, do not touch the buttons with your hands, but using a stick with a round tip. Note 3: When using headphones, the timing for move the DIRECTION switch (S1) can be determined from the beep sound.

connect to the plunger (PM901) square wave AF oscillator (sine wave) 10 Hz, ­ 3.5 dB
+ ­

battery terminal '

battery terminal `

FF AMS (S4) REW AMS (S5)
oe REPEAT (S9) p RADIO OFF (S3)

Q15 PH1

S1 DIRECTION FWDNSTOPnREV

TP23 (GND)

connect to the motor (M601)

­3­

Slider (NR)

Rotation system
Rotation system during PLAY.
gear (NR) (FWD : left side/ REV : right side) idler gear (A) (side S) idler gear (A) (side T) gear (REEL) (side S) gear (REEL) (side T)
slider (NR)

motor pulley

cam gear

side F side R center

gear (Y)

clutch assy (F) idler gear (B)

reverse pulley insert flywheel (N) insert flywheel (R)

Rotation system during FF.

Rotation system during REW.

idler gear (A) (side T) gear (REEL) (side T) cam gear

gear (FR) (FF: left side) motor pulley
cam gear

gear (FR) idler gear (A) (REW: right side) (side S) gear (REEL) (side S) motor pulley

clutch assy (F) gear (Y)
gear (Y)

clutch assy (F)

reverse pulley insert flywheel (N) insert flywheel (R)
insert flywheel (N)

reverse pulley insert flywheel (R)

­4­

SECTION 2 GENERAL
(FX673)

This section is extracted from instruction manual.

(FX877)

(FX673)

(FX877)

­5­

(FX673)

(FX877)

(FX877)

(FX673)

(FX673)

(FX877)

­6­

SECTION 3 DISASSEMBLY
This set can be disassembled in the order shown below.

Set

Case Block Assy

Main Board Belt (F2) Motor (Capstan/Reel) (M601)

Lid Block Assy, Cassette

Ornament Block Assy, Reel

Holder (F) Assy

Pinch Lever (N)/(R) Assy

Head, Magnetic (HP901)

Note: Follow the disassembly procedure in the numerical order given.

CASE BLOCK ASSY

2 claw

1 Open the lid battery case. 3 lid, battery case 4 two screws (M1.4 × 2.5)

4 screw (M1.4 × 2.5)

4 two screws (M1.4 × 2.5)

5 Remove the case block assy in the direction of the arrow.

­7­

MAIN BOARD
2 Remove four solders of leaf switch.

3 Remove two solders of plunger solenoid.

S1
5 two screws

6 MAIN board

5 screw (M1.4) 4 Remove four solders of motor. 1 flexible board

Note: On installation MAIN board adjust the S1 and slider.

slider

BELT (F2)

3 belt

2 terminal board (T3)

1 Remove the solder of terminal board.

­8­

MOTOR (CAPSTAN/REEL) (M601)

1 two screws (M1.4) 2 motor (capstan/reel) (M601)

LID BLOCK ASSY, CASSETTE

1 screw (M1.4 × 2) 5 lid block assy, cassette

2 two screws (M1.4 × 2)

3 Open the cassette lid.

4 shaft

­9­

ORNAMENT BLOCK ASSY, REEL

4 claw 5 ormanent block assy, reel 4 claw

1 claw

3 boss 1 claw 2 claw

HOLDER (F) ASSY
2 shaft

7 bracket (cassette) assy 5 lever (S), lock 3 lever (B), lock 1 two screws (M1.4 × 1.4) 6 shaft

4 screw (M1.4)

9 Remove the holder (F) assy in the direction of the arrow.

8 flexible board.

­ 10 ­

PINCH LEVER (N)/(R) ASSY

1 claw 2 Remove the pinch lever (R) assy in the dereciton of the arrow.

4 Remove the pinch lever (N) assy in the direction of the arrow. 3 claw

HEAD, MAGNETIC (PLAY BACK) (HP901)
1 claw

2 Remove the magnetic head (HP901) in the direction of the arrow.

­ 11 ­

SECTION 4 MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened swab: playback head pinch roller rubber belts capstan 2. Demagnetize the playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage (1.3 V) unless otherwise noted. Torque Measurement
Mode FWD FWD Back Tension REV REV Back Tension FF, REW CQ-102RC CQ-102C Torque meter Meter reading 16 ­ 25 g·cm (0.23 ­ 0.34 oz·inch) 0.5 ­ 1.5 g·cm (0.007 ­ 0.02 oz·inch) 16 ­ 25 g·cm (0.23 ­ 0.34 oz·inch) 0.5 ­ 1.5 g·cm (0.007 ­ 0.02 oz·inch) more than 50 g·cm (more than 0.7 oz·inch)

SECTION 5 ELECTRICAL ADJUSTMENTS
PRECAUTION 1. Specified voltage : 1.3 V (DC) 2. Setting BL SKIP : OFF SOUND RV/MB/GRV : OFF AVLS : OFF aNR : OFF

TAPE DECK SECTION
Test tape
Type WS-48A Signal 3 kHz, 0 dB

0 dB=0.775 V

Used for Tape Speed Adjustment

Tape Speed Adjustment Setting: Function: TAPE
Test tape WS-48A (3 kHz, 0 dB) frequency counter 16
+ ­

CQ-201B

set

2 REMOTE jack (J701)

Procedure: 1. Playback WS-48A (tape center) in the FWD state. 2. Adjsut RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Values: 2,970 to 3,030 Hz 3. Playback WS-48A (tape center) in the REV state. Check that the frequency counter reading is within 2% (approx.60 Hz) of the reading of step 1. Adjustment Location: MAIN BOARD (See page 13)

­ 12 ­

TUNER SECTION
[AM] Setting: function : RADIO BAND button : AM
AM RF signal generator

0 dB=1 µV
T2

AM IF ADJUSTMENT Adjust for a maximum reading on level meter 450 kHz AM VCO VOLTAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter T1 531 kHz 1602 kHz 1.5 ± 0.1 V 8.5 ± 1 V

Put the lead-wire antenna close to the set. 32 set

level meter + ­

Confirmation

AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L5 621 kHz FM VCO VOLTAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter L2 Confirmation 87.5 MHz 108 MHz 3.4 ± 0.1 V Less than 10 V

30% amplitude 2 REMOTE jack (J701) modulation by 400 Hz signal Output level: as low as possible

[FM] Setting: function : RADIO BAND button : FM
FM RF signal generator 0.01 µF set 22.5 kHz frequency deviation by 400 Hz signal Output level: as low as possible

TP1 (FM IN) 32

level meter + ­

FM VCO Adjustment Setting:
FM RF SSG 0.001 µF

2 REMOTE jack (J701)

TP (FM IN)

Carrier frequency : 98 MHz Modulation : no modulation Output level : 0.1 V (100 dB)

digital voltmeter MAIN board TP2 (VT)

+ ­

Procedure: 1. Connect the frequency counter to pin !TM of IC2 as shown the figure below. 2. Tune the set to 98 MHz. 3. Adjust RV1 for 19 kHz reading on the frequency counter. Specification: 18.95 kHz to 19.05 kHz
frequency counter 1 µF IC2 pin !TM 33 k
+ + ­

· Repeat the procedures in each adjustment several times, and the tracking adjustments should be finally done by the trimmer capacitors.

Adjustment Location:
­ MAIN Board (Side B) ­

L2 FM VCO Voltage Adjustment TP1 (FM IN) TP2 (VT) IC2 T2 AM IF Adjustment T1 AM VCO Voltage Adjustment RV1 FM VCO Adjustment RV601 Tape Speed Adjustment

1 12

L5 AM Tracking Adjustment

­ 13 ­

WM-FX673/FX877 SECTION 6 DIAGRAMS
6-1. BLOCK DIAGRAM ­ TUNER Section ­
X1 10.7MHz

6-2.

BLOCK DIAGRAM ­ MAIN Section ­
B+ SWITCH Q304 DDC B+ ANT

B
FM/AM IF AMP,FM/AM DET, MPX IC2 (1/2) QUAD FM RF AMP, MIX AMP, OSC IC1 RF IN MIX OUT CF1 10.7MHz 3 FM IF IN 7

TUNER L-CH

A
(Page 15)

(Page 16) AUDIO MASTER AMP (FWD/REV SELECT, PLAYBACK EQ AMP) IC301 (1/3) FWD IN-L PREAMP REV IN-L MTL DRV-L PRE OUT-L DOLBY NR AMP IC302 14 VCC 7 4 IN-L OUT-L 5 SW 13 8 AVLS CONTROL SWITCH Q305 R-CH 32 PW IN-C BASS BOOST BST AMP OUT POWER AMP V/I PW NF-L R-CH EQ-L BEEP 29 30 PRE SW PW SW MT SW BATT B+ VCC DATA REMO GND BEEP AUDIO MASTER AMP (BASS BOOST AMP, AMS, POWER AMP) IC301 (2/3) PW IN-L POWER AMP

HP901 (PLAYBACK) DET OUT L-CH 1 5 R-CH SWITCH MUTING Q19 R-CH

RV301 VOL

J701 2 REMOTE

· SIGNAL PATH : PLAYBACK : TUNER (FM/AM) R-CH: Same as L-CH

A
(Page 18)

ANT

B.P.F.

1

RF AMP

MIX AMP

6

FM IF AMP Q7, 14

FM IF AMP

FM DET

AF AMP

22

20

MPX IN

FM AM PRE AMP DECODER AMP

LOUT ROUT

14 15

TUNER L-CH BUFFER Q18 R-CH

B
(Page 17)

+

28

FWD

+
R-CH POWER AMP

PW OUT-L

20

OSC RF OUT LOCAL/DX SWITCHING Q3 OSC AM IF IN 21 AM IF AMP AM DET

PILOT IN PILOT

EQ METAL CONTROL

+

PW OUT-R PW OUT-C

22 21

6

R-CH

8

5

F/R SW

L-CH REV DDC2 CTL VCO

M/N SW

PD1 L2 FM OSC L2 FM VCO VOLTAGE PD2

1/2 COUNTER 1/2 COUNTER

33

C
(Page 18)

R-CH

R-CH

44

46

+
S901-2 (ATS) R-CH

12

AMS IN

AMS AMS OUT BST SW

AGC DET AGC IN 35

LPF 2A

LPF1

L5 AM FERRITE-ROD ANTENNA AM RF AMP Q10 24

T2 AM IF

IF OUT

IF REQ

AM MIX AMP, OSC IC2 (2/2) AM RF IN MIX OUT

18

19

16

VCO 17 FWD STOP S1 (DIRECTION)

D1

D2

AGC

LPF 2B

STOP PULSE

40 MEGA BASS/ GROOVE SWITCHING Q302 S901-1 (TAPE DETECT)

43

39

45 42 41

MIX AMP OSC OSC

11 4 CF2 450kHz

10 RV1 FM VCO REV

MUTE R-CH REVIVE/GROOVE SWITCHING Q303 A/D REF B+

D
(Page 16)

FM B+ Q11 SWITCHING

D3 (1/2) L5 AM TRACKING

T1 AM VCO VOLTAGE Q13 T1 AM OSC RF B+ MUTE 44 F/R SW 29 F/R CTL (PLAY) 52 TAPE 59 DOLBY CTL 54 AVLS CTL 23 DOLBY VCC CTL 57 MB/GRV CTL 37 AMS IN 55 BOOST CTL

COMPARATOR IC5

2

56 REVIVE CTL

49 BEEP

27 58 28 PRE CTL AMP CTL MUTE CTL

31 34 R DATA OUT R DATA IN

67 WAKE UP

D
(Page 18)

S3 ­ 10

FM VCO BUFFER Q1, 4

S2 HOLD OFF HOLD

OSC CTL MOTOR DIR

MOTOR CTL

DDC2 CTL DDC1 CTL RADIO CTL BAND FM/AM

M DATA I/O

M CLOCK

D3 (2/2)

SPEED CTL

SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER IC3 (2/2)

KEY IN 43

HOLD SENS 35 HOLD SW 41 BATT B+ (1.5V) FM B+ (FM TUNER CIRCUIT B+) B+ SWITCH Q9 RIPPLE FILTER Q301 18 RF OUT BASE RIPPLE FILTER VCC 19

XOUT

47 LOW-PASS FILTER Q5, 6 LIQUID CRYSTAL DISPLAY ND1 65 LOCAL/DX 70 FM IN DO DI

48 46

36 51

XIN

CS

74

75

24

50

61 40 62 30

X2 75kHz 3 4 2 SK 1 CS RV601 TAPE SPEED

71 AM IN

66 DO IF IN 64 MONO/ST 68 STEREO/MONO SWITCHING Q12 IF BUFFER Q2

COM1 ­ COM4

1­4

RF B+ FM/AM TUNER CIRCUIT B+ Q601 SPEED CONTROL SWITCH +1.6V REGULATOR IC6 B+ SWITCH Q8

17

SYSTEM CONTROLLER IC3 (1/2)

EEPROM IC4 S1 ­ S18 5 ­ 22

A/D REF B+ THP601 RADIO B+ FM/AM TUNER CIRCUIT B+ 7

· SIGNAL PATH : FM : AM R-CH: Same as L-CH
05

COMPARATOR OUT + 11 ­

IN+ VSP

AUDIO MASTER AMP (RIPPLE FILTER) IC301 (3/3)

10 9

(BATTERY CASE) ROTATION DETECT SENSOR PH1 DDC B+ U PHOTO IN 39 PHOTO REFLECTOR SWITCH & BUFFER Q15 W V DIRECTION CONTROL OSC DR CAPSTAN/REEL MOTOR DRIVE IC601 5 SPEED CONTROL M601 (CAPSTAN/REEL) U 19 V 1 W 3 VREF Q20 MOTOR DRIVE CIRCUIT SWITCH & LOGIC CIRCUIT OSC CIRCUIT BIAS START REFERENCE 8 VOLTAGE VT B+ PLL LOW-PASS FILTER CIRCUIT B+ DDC B+ (2.5V) 2 DC/DC CONVERTER IC801 3 D804 DC/DC CONVERTER T801, Q801 D802 D803 POWER CONTROL Q802, 803 RECHARGEABLE BATTERY (NI-CD) (NC-6WM 1.2V) DDC2 CTL B+ SWITCH Q804, 805 5 DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 1PC. 1.5V

DC IN 1.5V

PHOTO CTL 38

6

PM CTL 60 05

PLUNGER DRIVE Q16, 17

PM901 (PLUNGER)

C
(Page 16)

­ 15 ­

­ 16 ­

­ 17 ­

­ 18 ­

6-4.

SCHEMATIC DIAGRAM

· See page 27 for Waveform. · See page 28 for IC Block Diagrams.

WM-FX673/FX877

­ 23 ­

­ 24 ­

­ 25 ­

­ 26 ­

· Waveform ­ MAIN BOARD ­
1 IC3 &¢ (X OUT) 500 mV/DIV, 5 µs/DIV

· IC Block Diagrams IC1 TA7371AF-EL
MIX OUT RF OUT

6-5. IC PIN FUNCTION DESCRIPTION
IC2 TA2022AFN-EL
AM RF IN PW SW PILOT IN DET OUT MPX IN LPF 2B LPF 2A

IC302

NJM2185AV-TE2
OUTA VEXT DETA

· MAIN BOARD IC3 TC9327AF-606 (SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER) Pin No. Pin Name COM1 to COM4 S1 to S18 DOLBY VCC CTL SPEED CTL RADIO/MIC F/R CTL (REC) PRE CTL MUTE CTL F/R CTL (PLAY) BAND FM/AM R DATA OUT F TUME R TUME R DATA IN HOLD SENS OSC CTL AMS IN PHOTO CTL PHOTO IN DDC1 CTL HOLD SW BATT DET KEY IN F/R SW A/D REF CS M DATA I/O M CLOCK BEEP MOTOR CTL MOTOR DIR TAPE REC CTL AVLS CTL I/O O O O O O O O O O O O I I I I O I O I O I I I I I O I/O O O O O I O O Description Common drive signal output to the liquid crystal display (LCD1) Segment drive signal output to the liquid crystal display (LCD1) Power on/off control signal output of the dolby NR amp (IC302) "L": power on, "H": power off Motor speed control signal output to the capstan/reel motor driver IC (IC601) "L": normal speed, "H": 1/2 speed Not used (open) Not used (open) Preamp on/off control signal output to the TA2123AF (IC301) "L": tape play, "H": radio on Power on mute control signal output to the TA2123AF (IC301) "L": mute on Forward/reverse selection signal output to the TA2123AF (IC301) "L": reverse direction, "H": forward direction Power on/off control signal output of the FM circuit "L": power on (FM on), "H": power off (AM or tape on) Remote control data output to the remote commander "H" is input when amplifier on mode "H" is input when amplifier on mode Communication request input from the remote commander Hold status input of the HOLD switch (S2) "L": hold off, "H": hold on "H" is input when key pressing at hold mode Motor restart control signal output to the capstan/reel motor driver IC (IC601) "L": BL skip status, "H": FF/REW motor rotation status Whether a music is present or not from TA2123AF (IC301) is detected at auto music sensor "L": music is present, "H": music is not present Control signal output to the capstan/reel motor rotation detect circuit "L": rotation detect circuit on Rotation detect signal input of the capstan/reel motor (M601) Power on/off control signal output of the DC/DC converter circuit "L": power off, "H": power on Hold detect input from the HOLD switch (S2) "L": hold on Battery voltage detection signal input (A/D input) Key input terminal (A/D input) Tape direction switch (S1) input terminal (A/D input) "L": forward position Reference voltage (+1.6V) input for the A/D converter Chip select signal output to the EEPROM (IC4) Two-way data bus with the EEPROM (IC4) Serial clock signal output to the EEPROM (IC4) Beep sound signal output to the TA2123AF (IC301) Motor start control signal output to the capstan/reel motor driver IC (IC601) "L": motor off, "H": motor on Motor direction control signal output to the capstan/reel motor driver IC (IC601) "L": clockwise, "H": counterclockwise Cassette tape detect switch (S901-1) input terminal "L": cassette detected, "H": no cassette Not used (open) AVLS (Automatic Volume Limiter System) on/off control signal output terminal "L": AVLS on "H": AVLS off
DCA

ST IND

ROUT LOUT

SW

LPF1

OSC

VCO

VCC

8

7 REGULATOR

6

5

24 23 SWITCH

22

21

20

19 18

17

16

15 14

13

14

13

12

11

INA

V+

1 to 4 5 to 22 23 24 25 26 27 28
+ ­

10

9

8

1.3 Vp-p
RF AMP

PILOT

G2
0° FM PRE VCO 90° DIVIDE DECODE ST IND AM IF

G1

V/I

MIX AMP

BIAS CIRCUIT

+ ­

OSC

AF AMP

SUM WEIGHT

AM

DFC DIODE (C)

AFC DIODE (A)

RF IN

GND

75 kHz

1

2

3

4
FM DET

AM DET

GM A-CH BLOCK
STOP PULSE

B-CH BLOCK: SAME AS A-CH.

OSC

FM IF AMP

MIX

AM IF AMP

AGC

29
1 GND 2 IREF 3 VREF 4 INB 5 OUTB 6 DCB 7 DETB

1
VREF

2
OSC

3
FM IF IN

4
MIX OUT

5
VCC

6
AM IF IN

7
QUAD

8
AGC

9
GND

10
IF OUT

11
IF REQ

12
SP OUT

30 31 32 33 34

IC301

TA2123AF (EL)
BST OUT PW IN C LPF PW NF A PW IN A PW IN B PW NF B BST NF AGC IN

IC601

MM1279XVBE

35
20 PV 19 U V 1

EQ A

EQ B

DET

36 37

36 35

34 BST + ­

33

32 31

30 29 28 27 26

25

AGC DET

PW W GND

2 3 4 MOTIVE CONTROL CIRCUIT PRE DRIVER

24 RF IN 23 PW GND 22 OUT B PW B 21 OUT C

38
18 17 16 15 SOFT SWITCH 14 TC1 13 TC2 PU GND VCC FC

C-AMP SW 37 MT TC 38 BEEP 39 AMS OUT 40 BEEP

PW C

SWITCH

COMPARATOR PRE A
+ ­

IN+ 10

14 AMS MIX PRE B MIX
+ ­ + ­

13

AMS SW

PRE GND 47 VREF IN 48 VREF MTL DRV

1 2 3
IN A-F IN B-F VREF OUT

4
IN B-R

5
IN A-R

6
PRE NF-A

7
PRE OUT A

8
MTL DRV A

9
MTL DRV B

10 11
PRE OUT B PRE NF-B

12
AMS IN

­ 27 ­

­ 28 ­

+ ­

MT SW PW SW BST SW F/R SW PRE SW M/N SW

41 42 43 44 45 46

+ ­ + ­

39 40 41 42 43

OSC DR VREF START

5 6 7 8

PW A 20 OUT A 19 VCC RIPPLE FILTER

MOTIVE/ OSC

MOTIVE LOGIC

BIAS REFERENCE VOLTAGE

SPEED CONTROL

CURRENT CONTROL

18 BASE 17 RF OUT 16 GND 15 AMS DET
INVERTER VSP 9 OUTPUT BIAS 12 R1 11 OUT

44 45 46 47 48 49 50 51 52 53 54

­ 29 ­

­ 30 ­

Pin No. 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Pin Name BOOST CTL REVIVE CTL MB/GRV CTL AMP CTL DOLBY CTL PM CTL DDC2 CTL RADIO CTL TEST IF IN LOCAL/DX DO WAKE UP MONO/ST GND FM IN AM IN VDD RESET XOUT XIN VXT VLCD C1 C2 VEE

I/O O O O O O O O O I I O O I O -- I I -- I O I -- -- -- -- --

Description Bass boost control signal output to the TA2123AF (IC301) "L": off, "H": on Emphasizing sound control signal output to the TA2123AF (IC301) "L": RV (revive), "H": normal/MB (mega bass)/GRV (groove) Emphasizing sound control signal output to the TA2123AF (IC301) "L": normal/RV (revive)/GRV (groove), "H": MB (mega bass) Power on/off control signal output to the TA2123AF (IC301) "L": power off, "H": power on Dolby on/off control signal output to the dolby NR amp (IC302) "L": dolby NR on, "H": dolby NR off Plunger drive signal output terminal "L": plunger on Power on/off control signal output of the DC/DC converter circuit "L": power off, "H": power on Power on/off control signal output of the FM and AM circuit "L": power on (FM or AM on), "H": power off (tape on) Test input terminal Normally: fixed at "L" Intermediate frequency detect signal input from the TA2022AFN (IC2) Local/DX select signal output terminal "L": DX, "H": local PLL error signal output terminal Input of acknowledge signal for the key entry Acknowledge signal is input to accept function in the power off status On at input of "H" FM stereo/mono select signal output to the TA2022AFN (IC2) "L": stereo, "H": mono Ground terminal FM VCO input terminal AM (MW) VCO input terminal Power supply terminal (+2.5V) System reset signal input terminal "L": reset System clock output terminal (75 kHz) System clock input terminal (75 kHz) Terminal to which external capacitor is connected to stabilize crystal oscillator power supply

Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage

­ 31 ­

SECTION 7 EXPLODED VIEWS
NOTE: · -XX and -X mean standardized parts, so they may have some difference from the original one. · Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) Parts Color Cabinet's Color · Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. · The mechanical parts with no reference number in the exploded views are not supplied. · Accessories and packing materials are given in the last of the electrical parts list. · Abbreviation AUS : Australian model CH : Chinese model CND : Canadian model EA : Saudi Arabia model EE : East European model FR : French model HK : Hong Kong model JE : Tourist model KR : Korean model

(1)

CASE SECTION
12 11

13

15 16 S901

18 19

14 10 9 8 25 6 4 3 1 2 25 5 7

15

18 20 21 23 22

1

1 26
Ref. No. 1 1 2 3 3 3 3 4 5 5 5 6 7 8 9 10 11 12 13 14 14 14 Part No. 3-704-197-21 3-704-197-23 3-034-075-01 3-034-068-01 3-034-068-11 3-034-068-21 3-034-068-31 3-345-648-71 A-3021-222-A Description Remark Ref. No. 15 16 18 18 19 19 19 20 21 22 23 24 25 26 26 26 26 26 26 S901 Part No. 3-366-892-01 X-3376-277-2 3-704-197-11 3-704-197-13 X-3377-332-1 Description SCREW (M1.4X2.5), LOCKING (FX877: JE, KR) SCREW (M1.4X2.5), LOCKING LEVER (HOLD) LID, BATTERY (FX877: JE) (SILVER) LID, BATTERY (FX877: JE) (BLUE)

24
Remark

SCREW (M1.4) BRACKET ASSY SCREW (M1.4X2.0), LOCKING (FX877: KR, JE) SCREW (M1.4X2.0), LOCKING LID ASSY (F-S), CASSETTE (FX673/FX877: CH)

LID, BATTERY (FX673/FX877: CH, KR) LID, BATTERY (FX877: KR) (BLUE) SCREW (M1.4), TOOTHED LOCK MAIN, BOARD COMPLETE (EXCEPT FX673: FR/FX877: JE) A-3021-223-A MAIN, BOARD COMPLETE (FX673: FR) A-3021-237-A 3-029-213-02 3-029-210-01 3-309-595-11 X-3377-281-1 3-031-460-01 3-366-892-11 3-029-217-01 3-328-483-11 3-029-205-01 MAIN, BOARD COMPLETE (FX877: JE) TERMINAL BOARD (T3) TERMINAL BOARD (MINUS) SHEET, INSULATING, PACK (FX877: CH, JE) TERMINAL BOARD ASSY, BATTERY SHEET (BT) SCREW (M1.4X1.4) LEVER (B), LOCK SHEET COVER, MD (FX877: JE)

X-3377-528-1 LID ASSY (F-SJ), CASSETTE (FX877: JE, KR) (SILVER) X-3377-529-1 LID ASSY (F-LJ), CASSETTE (FX877: KR, JE) (BLUE) X-3376-279-1 BRACKET (CASSETTE) ASSY 3-365-630-41 SCREW (M1.4) 3-029-220-01 SPRING, TENSION 3-029-219-01 3-034-072-11 3-375-114-41 X-3377-347-1 KNOB (OPEN) ORNAMENT, REEL SCREW CASE (FX-AS3) ASSY (FX673: CND, E, EA, HK, AUS) X-3377-348-1 CASE (FX-AS7M) ASSY (FX877: KR) X-3377-349-1 CASE (FX-AS7M) ASSY (FX877: CH) X-3377-357-1 CASE (FX-AS30) ASSY (FX673: AEP, UK, FR, EE) X-3377-366-1 CASE (FX-AL7J) ASSY (FX877: KR, JE) (BLUE) X-3377-367-1 CASE (FX-AS7J) ASSY (FX877: KR, JE) (SILVER) 1-762-553-11 SWITCH, LEAF (TAPE DETECT, ATS)

3-029-205-11 COVER, MD (FX673: AEP, UK, FR, EE) 3-029-205-21 COVER, MD (FX673: CND, E, EA, HK, AUS/FX877: CH)

­ 32 ­

(2)

MECHANISM DECK SECTION (MT-WMEX672-162)
67 66 64 63 61 65 62
PM901 M601

73

69 68 70 76 82 72 71 75 71 76 74

60

77 59

78 58 79 57 54 80 56 55 80
HP901

79

53

52

51
Ref. No. 51 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 66 67 Part No. X-3376-293-1 X-3377-039-1 X-3377-363-1 3-029-271-01 X-3377-362-1 3-029-276-01 3-029-289-01 3-029-275-01 3-029-278-01 3-029-282-01 3-029-285-01 3-029-284-01 3-029-281-01 X-3376-813-1 3-932-724-21 3-386-694-01 3-029-306-01 3-029-306-11 3-029-280-01 Description HOLDER (F) ASSY (FX877) HOLDER (F) ASSY (/M) (FX673) PINCH LEVER (R) ASSY SPRING (HD) PINCH LEVER (N) ASSY WASHER (STOPPER R) WASHER WASHER (STOPPER N) WASHER GEAR (Y) GEAR, CAM LEVER, TRIGGER GEAR, IDLER (B) CLUTCH ASSY (F) WASHER WASHER FLYWHEEL (N), INSERT (FX877) FLYWHEEL (N), INSERT (FX673) BELT (F2) Remark Ref. No. 68 69 69 70 71 72 73 74 75 76 77 77 78 79 80 82 HP901 M601 PM901 Part No. 3-029-287-01 3-029-268-01 3-029-268-11 3-007-428-01 3-029-283-01 3-029-286-01 3-029-765-01 3-029-274-02 3-007-433-01 3-010-273-02 X-3376-291-4 X-3377-037-2 3-029-288-01 3-010-954-01 3-010-274-02 3-029-273-01 1-500-576-11 1-763-166-12 1-454-674-32 Description SPRING (TG), TORSION FLYWHEEL (R), INSERT (FX877) FLYWHEEL (R), INSERT (FX673) WASHER (R) GEAR, IDLER (A) GEAR (NR) SCREW (M1.4), TOOTHED LOCK RETAINER (F2), MOTOR SHEET (N), REFLECTION GEAR (REEL) CHASSIS ASSY (F) (FX877) CHASSIS ASSY (F) (/M) (FX673) PULLEY, REVERSE SPRING (BT), COMPRESSION TABLE, REEL GEAR (FR) HEAD, MAGNETIC (PLAYBACK) MOTOR (CAPSTAN/REEL) SOLENOID, PLUNGER Remark

­ 33 ­

MAIN
NOTE: · Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. · -XX and -X mean standardized parts, so they may have some difference from the original one. · RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable · Abbreviation AUS : Australian model CH : Chinese model CND : Canadian model Ref. No. Part No.

SECTION 8 ELECTRICAL PARTS LIST
· Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. · SEMICONDUCTORS In each case, u: µ, for example: uA. . : µA. . uPA. . : µPA. . uPB. . : µPB. . uPC. . : µPC. . uPD. . : µPD. . · CAPACITORS uF: µF · COILS uH: µH HK : Hong Kong model JE : Tourist model KR : Korean model Remark Ref. No. C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C62 C63 C64 C65 C66 C80 C81 C101 C104 C105 C106 C107 C108 C110 C111 C201 C204 C205 Part No. 1-115-156-11 1-164-227-11 1-107-826-91 1-115-412-11 1-127-578-91 1-110-563-11 1-165-176-11 1-162-969-11 1-162-969-11 1-164-360-11 1-164-360-11 1-164-360-11 1-115-156-11 1-162-917-11 1-162-917-11 1-125-984-21 1-162-910-11 1-162-915-11 1-115-156-11 1-164-676-11 1-162-910-11 1-162-910-11 1-162-970-11 1-162-970-11 1-164-676-11 1-164-227-11 1-162-919-11 1-164-217-11 1-107-826-91 1-164-245-11 1-115-156-11 1-115-156-11 1-125-984-21 1-113-619-11 1-115-156-11 1-113-619-11 1-115-467-11 1-115-156-11 1-164-677-11 1-164-227-11 Description CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 1uF 0.022uF 0.1uF 680PF 3.3uF 0.068uF 0.047uF 0.0068uF 0.0068uF 0.1uF 0.1uF 0.1uF 1uF 15PF 15PF 22uF 5PF 10PF 1uF 2200PF 5PF 5PF 0.01uF 0.01uF 2200PF 0.022uF 22PF 150PF 0.1uF 0.015uF 1uF 1uF 22uF 0.47uF 1uF 0.47uF 0.22uF 1uF 0.033uF 0.022uF 22uF 0.47uF 1uF Remark 10V 25V 16V 25V 6.3V 16V 16V 25V 25V 16V 16V 16V 10V 50V 50V The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque ! sont critiquens pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. When indicating parts by reference number, please include the board.

EA : Saudi Arabia model EE : East European model FR : French model Description

A-3021-222-A MAIN BOARD, COMPLETE (EXCEPT FX673: FR/FX877: JE) A-3021-223-A MAIN BOARD, COMPLETE (FX673: FR) A-3021-237-A MAIN BOARD, COMPLETE (FX877: JE) ******************************* 1-694-502-11 CONDUCTIVE BOARD, CONNECTION 3-034-073-01 HOLDER (LCD) < CAPACITOR > C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 1-162-927-11 1-162-970-11 1-164-227-11 1-164-227-11 1-162-970-11 1-162-908-11 1-164-676-11 1-164-676-11 1-162-927-11 1-162-927-11 1-162-962-11 1-162-905-11 1-107-817-11 1-162-905-11 1-162-925-11 1-164-676-11 1-162-970-11 1-162-959-11 1-135-201-11 1-165-176-11 1-162-927-11 1-165-176-11 1-162-915-11 1-164-227-11 1-164-315-11 1-162-919-11 1-165-176-11 1-162-923-11 1-162-970-11 1-162-961-11 1-164-362-11 1-125-984-21 1-115-156-11 1-115-156-11 1-162-970-11 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 100PF 0.01uF 0.022uF 0.022uF 0.01uF 3PF 2200PF 2200PF 100PF 100PF 470PF 1PF 0.33uF 1PF 68PF 2200PF 0.01uF 330PF 10uF 0.047uF 100PF 0.047uF 10PF 0.022uF 470PF 22PF 0.047uF 47PF 0.01uF 330PF 470PF 22uF 1uF 1uF 0.01uF 5% 10% 10% 10% 10% 0.25PF 5% 5% 5% 5% 10% 0.25PF 10% 0.25PF 5% 5% 10% 5% 20% 10% 5% 10% 0.5PF 10% 5% 5% 10% 5% 10% 10% 5% 20% 50V 25V 25V 25V 25V 50V 16V 16V 50V 50V 50V 50V 16V 50V 50V 16V 25V 50V 4V 16V 50V 16V 50V 25V 50V 50V 16V 50V 25V 50V 50V 4V 10V 10V 25V

10% 10% 5% 20% 10% 10% 10% 10%

5% 5%

20% 4V 0.25PF 50V 0.5PF 50V 10V 5% 16V 0.25PF 0.25PF 10% 10% 5% 10% 5% 5% 10% 10% 50V 50V 25V 25V 16V 25V 50V 50V 16V 25V 10V 10V 4V 6.3V 10V 6.3V 10V 10V 16V 25V 4V 6.3V 10V

20% 10%

10% 10% 10% 10% 20% 10%

10%

1-125-984-21 TANTAL. CHIP 1-113-619-11 CERAMIC CHIP 1-115-156-11 CERAMIC CHIP

­ 34 ­

MAIN
Ref. No. C206 C207 C208 C210 C211 C301 C302 C303 C304 C305 C306 C307 C308 C309 C310 C311 C312 C313 C314 C315 C316 C317 C318 C319 C320 C321 C325 C601 C602 C603 C604 C605 C606 C607 C608 C803 C804 C805 C806 C807 C808 C809 C810 C811 C812 C813 CB301 Part No. Description 1uF 0.47uF 0.22uF 0.033uF 0.022uF 47uF 2.2uF 0.1uF 22uF 22uF 0.47uF 4.7uF 4.7uF 2.2uF 0.1uF 0.33uF 0.22uF 10% 10% 10% 10% 20% 20% Remark 10V 6.3V 10V 16V 25V 2.5V 4V 16V 4V 4V 6.3V 2.5V 2.5V 10V 16V 16V 16V 10V 16V 10V 50V 50V 4V 16V 25V 25V 6.3V 6.3V 16V 10V 16V 16V 25V 25V 25V 20V 25V 6.3V 25V 4V 10V 6.3V 25V 10V 4V 10V 50V Ref. No. D6 D101 D201 D301 D302 D303 D304 D305 D801 D802 D803 D804 Part No. 8-719-422-37 8-719-422-37 8-719-422-37 8-719-422-37 8-719-422-37 8-719-422-37 8-719-422-37 8-719-422-37 8-719-049-09 8-719-420-87 Description DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE DIODE MA8051-TX MA8051-TX MA8051-TX MA8051-TX MA8051-TX MA8051-TX MA8051-TX MA8051-TX 1SS367-T3SONY MA8130-TX Remark 1-115-156-11 CERAMIC CHIP 1-113-619-11 CERAMIC CHIP 1-115-467-11 1-164-677-11 1-164-227-11 1-119-663-11 1-107-815-11 1-164-360-11 1-125-984-21 1-125-984-21 1-113-619-11 1-117-181-11 1-117-181-11 1-135-149-21 1-164-360-11 1-165-112-11 1-165-128-11 1-115-156-11 1-165-128-11 1-115-156-11 1-162-968-11 1-162-964-11 1-135-201-11 1-164-360-11 1-164-227-11 1-164-227-11 1-125-837-11 1-125-837-11 1-107-826-11 1-115-467-11 1-164-360-11 1-107-826-11 1-162-970-11 1-162-970-11 1-162-970-11 1-135-177-21 1-164-227-11 1-125-837-11 1-164-227-11 1-125-984-21 1-115-156-11 1-127-808-91 1-162-970-11 1-115-156-11 1-125-984-21 1-115-156-11 1-127-678-21 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP TANTAL. CHIP CERAMIC CHIP TANTAL. CHIP TANTAL. CHIP CERAMIC CHIP TANTAL. CHIP TANTAL. CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP TANTAL. CHIP CERAMIC CHIP CERAMIC CHIP < FILTER > CF1 CF2 1-767-362-11 FILTER, CERAMIC (10.7MHz) 1-767-480-11 FILTER, CERAMIC (AM) (450kHz) < DIODE > D1 D2 D3 D4 D5 8-719-053-30 8-719-053-30 8-719-072-58 8-719-404-50 8-719-049-09 DIODE DIODE DIODE DIODE DIODE MA357 (E)-(TX).SO MA357 (E)-(TX).SO SVC347-TL MA111-TX 1SS367-T3SONY L1 L2 L3 L4 L5 L6 L7 L8 L801 L802 1-469-373-21 1-416-941-21 1-410-997-42 1-412-995-21 1-754-046-11 1-412-995-21 1-412-967-31 1-412-967-31 1-412-034-11 1-412-995-21 INDUCTOR CHIP 95nH COIL (FM OSC) INDUCTOR CHIP 2.2uH INDUCTOR CHIP 22uH ANTENNA, FERRITE-ROD (AM) INDUCTOR CHIP INDUCTOR CHIP INDUCTOR CHIP INDUCTOR CHIP INDUCTOR CHIP 22uH 0.1uH 0.1uH 330uH 22uH

20% 20% 10% 20% 20% 20%

8-719-404-50 DIODE MA111-TX 8-719-420-51 DIODE MA729-TX < FUSE >

F1

1-533-792-11 FUSE (SMD) 0.25A/125V < FERRITE BEAD >

1uF 0.22uF 1uF 0.0047uF 10% 0.001uF 10% 10uF 0.1uF 0.022uF 0.022uF 1uF 1uF 0.1uF 0.22uF 0.1uF 0.1uF 0.01uF 0.01uF 0.01uF 1uF 0.022uF 1uF 0.022uF 22uF 1uF 10uF 0.01uF 1uF 22uF 1uF 330PF 20% 10% 10% 10% 10% 10% 10% 10% 10% 10% 10% 20% 10% 10% 10% 20% 20% 10% 20% 0

FB1 FB2 FB3 FB4 FB5 FB6 FB7

1-500-445-21 1-500-445-21 1-500-445-21 1-500-245-11 1-500-245-11

FERRITE FERRITE FERRITE FERRITE FERRITE

0uH 0uH 0uH 0uH 0uH 0uH 0uH

1-500-245-11 FERRITE 1-500-245-11 FERRITE < IC >

IC1 IC2 IC3 IC4 IC5 IC6 IC301 IC302 IC601 IC801

8-759-362-23 8-759-362-25 8-759-594-67 8-759-457-68 8-759-387-31 8-759-457-70 8-759-579-12 8-759-488-80 8-759-356-46 8-759-553-28

IC IC IC IC IC IC IC IC IC IC

TA7371AF-EL TA2022AFN-EL TC9327AF-606 AK93C45AV-L TC75S55F (TE85R) XC62RP1602MR TA2123AF (EL) NJM2185AV-TE2 MM1279XVBE XC6383C251ML

< JACK > J701 1-779-867-81 JACK (2 REMOTE) < SHORT > JC101 JC201 1-216-864-11 METAL CHIP 1-216-864-11 METAL CHIP 0 0 5% 1/16W (EXCEPT FX673: FR) 5% 1/16W (EXCEPT FX673: FR)

< COIL >

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MAIN
Ref. No. L803 Part No. Description Remark Ref. No. R15 1-412-010-41 INDUCTOR CHIP 22uH < LIQUID CRYSTAL DISPLAY > ND1 1-803-469-11 DISPLAY PANEL, LIQUID CRYSTAL < PHOTO REFLECTOR > PH1 8-749-014-43 PHOTO REFLECTOR PR-20-T < TRANSISTOR > Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q301 Q302 Q303 Q304 Q305 Q601 Q801 Q802 Q803 Q804 Q805 8-729-037-89 8-729-028-69 8-729-037-89 8-729-037-89 8-729-231-96 8-729-028-69 8-729-037-89 8-729-037-64 8-729-823-86 8-729-037-89 8-729-037-63 8-729-037-71 8-729-037-71 8-729-037-89 8-729-425-46 8-729-013-60 8-729-800-71 8-729-427-72 8-729-426-36 8-729-037-71 8-729-800-71 8-729-037-71 8-729-426-36 8-729-037-62 8-729-426-36 8-729-037-71 8-729-800-37 8-729-400-55 8-729-800-71 8-729-800-71 TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR FET TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR 2SC4627J-C (TX).SO 2SC4655-BC (TX) 2SC4627J-C (TX).SO 2SC4627J-C (TX).SO 2SK880GR-TE85L 2SC4655-BC (TX) 2SC4627J-C (TX).SO UN9116J-(TX).SO 2SA1745-TL 2SC4627J-C (TX).SO UN9115J-(TX).SO UN9210J-(TX).SO UN9210J-(TX).SO 2SC4627J-C (TX).SO XP4315-TXE UN9216J-(TX).SO 2SB1295-UL6-TB XP4501-TXE XP1215-TXE UN9210J-(TX).SO 2SB1295-UL6-TB UN9210J-(TX).SO XP1215-TXE UN9114J-(TX).SO XP1215-TXE UN9210J-(TX).SO 2SD1048X6-TB 2SD1328-S-TX 2SB815B7-TB 2SB815B7-TB UN9210J-(TX).SO R56 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 1-218-875-11 1-216-833-11 1-216-833-11 1-216-833-11 1-216-833-11 1-216-845-11 1-216-853-11 1-216-853-11 1-216-849-11 1-216-839-11 1-216-839-11 1-216-825-11 1-216-825-11 1-218-895-11 1-218-851-11 RES,CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP RES,CHIP 15K 10K 10K 10K 10K 100K 470K 470K 220K 33K 33K 2.2K 2.2K 100K 1.5K 10K 0.5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 0.5% 0.5% 0.5% 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 1-216-829-11 1-216-845-11 1-216-821-11 1-216-821-11 1-216-845-11 1-216-833-11 1-216-853-11 1-216-845-11 1-216-839-11 1-216-833-11 1-216-843-11 1-216-825-11 1-216-825-11 1-216-857-11 1-216-825-11 1-216-849-11 1-216-857-11 1-216-853-11 1-216-815-11 1-216-833-11 1-218-871-11 1-218-839-11 1-216-849-11 1-216-851-11 1-216-855-11 1-216-821-11 1-216-823-11 1-218-863-11 1-218-911-11 1-218-855-11 1-218-847-11 1-218-859-11 1-218-859-11 1-218-859-11 1-218-863-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP RES,CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP RES,CHIP 4.7K 100K 1K 1K 100K 10K 470K 100K 33K 10K 68K 2.2K 2.2K 1M 2.2K 220K 1M 470K 330 10K 10K 470 220K 330K 680K 1K 1.5K 4.7K 470K 2.2K 1K 3.3K 3.3K 3.3K 4.7K 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 0.5% 0.5% 5% 5% 5% 5% 5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W R16 R17 R18 R19 R20 1-216-853-11 1-216-821-11 1-216-849-11 1-216-829-11 1-216-821-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP 470K 1K 220K 4.7K 1K 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W 1/16W 1/16W Part No. Description 10K 5% Remark 1/16W 1-216-833-11 RES,CHIP

8-729-037-71 TRANSISTOR < RESISTOR >

R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14

1-216-841-91 1-216-823-91 1-216-809-11 1-216-825-11 1-216-821-11 1-216-817-11 1-216-845-11 1-216-853-11 1-216-817-11 1-216-829-11 1-216-833-11 1-216-833-11 1-216-837-11 1-216-845-11

METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP RES,CHIP METAL CHIP METAL CHIP

47K 1.5K 100 2.2K 1K 470 100K 470K 470 4.7K 10K 10K 22K 100K

5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%

1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W

1-218-871-11 RES,CHIP

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MAIN
Ref. No. R73 R74 R75 R76 R77 R101 R102 R103 R104 R105 R106 R106 R107 R108 R109 R110 R111 R112 R201 R202 R203 R204 R205 R206 R206 R207 R208 R209 R210 R211 R212 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R601 R602 R603 R604 R605 R607 R801 R802 Part No. 1-218-831-11 1-218-875-11 1-218-839-11 1-218-875-11 1-216-829-11 1-216-823-11 1-216-837-11 1-216-789-11 1-216-827-11 Description RES,CHIP RES,CHIP RES,CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP 220 15K 470 15K 4.7K 1.5K 22K 2.2 3.3K 1.5K 150 1K 22K 150 6.8K 2.2K 220K 68 1.5K 22K 2.2 3.3K 1.5K 150 1K 22K 150 6.8K 2.2K 220K 68 220K 10K 15K 22K 2.2 330K 2.2K 47K 47K 100K 47K 100K 150K 22K 100 4.7K 1.5K 10K 100K 220K 4.7K 0.5% 0.5% 0.5% 0.5% 5% 5% 5% 5% 5% Remark 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W Ref. No. R803 R804 R805 R806 R807 Part No. Description 470 47 680 680 100K 5% 5% 5% 5% 5% Remark 1/16W 1/16W 1/16W 1/16W 1/16W 1-216-817-11 METAL CHIP 1-216-805-11 METAL CHIP 1-216-819-11 METAL CHIP 1-216-819-11 METAL CHIP 1-216-845-11 METAL CHIP

< COMPOSITION CIRCUIT BLOCK > RB1 RB601 1-233-811-21 RES, NETWORK 470K (3216) 1-233-873-21 RES, NETWORK 220K (CHIP TYPE) (3216) < VARIABLE RESISTOR > RV1 RV301 RV601 1-223-587-11 RES, ADJ, CARBON 22K 1-225-684-21 RES, VAR, CARBON 30K/30K (VOL) 1-223-584-11 RES, ADJ, CARBON 2.2K < SWITCH >

1-216-823-11 METAL CHIP 1-216-811-11 METAL CHIP 1-216-821-11 METAL CHIP 1-216-837-11 METAL CHIP 1-216-811-11 METAL CHIP 1-216-831-11 METAL CHIP 1-216-825-11 METAL CHIP 1-216-849-11 METAL CHIP 1-216-807-11 METAL CHIP 1-216-823-11 1-216-837-11 1-216-789-11 1-216-827-11 1-216-823-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP

5% 1/16W 5% 1/16W (EXCEPT FX673: FR) 5% 1/16W (FX673: FR) 5% 1/16W 5% 1/16W 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W 1/16W (FX673: FR) 1/16W 1/16W 1/16W 1/16W 1/16W

S1 S2 S3 S4 S5 S6 S7 S8 S9 S10

1-771-475-21 1-572-922-11 1-771-053-21 1-771-053-21 1-771-053-21 1-771-053-21 1-771-053-21 1-771-053-21 1-771-053-21 1-771-053-21

1-216-811-11 METAL CHIP 1-216-821-11 METAL CHIP 1-216-837-11 METAL CHIP 1-216-811-11 METAL CHIP 1-216-831-11 METAL CHIP 1-216-825-11 METAL CHIP 1-216-849-11 METAL CHIP 1-216-807-11 METAL CHIP 1-216-849-11 1-216-833-11 1-216-835-11 1-216-837-11 1-216-789-11 1-216-851-11 1-216-825-11 1-218-887-11 1-216-841-11 1-216-845-11 1-216-841-11 1-216-845-11 1-218-899-11 1-216-837-11 1-216-809-11 1-216-829-11 1-216-823-11 1-216-833-11 1-216-845-11 METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES,CHIP METAL CHIP

5% 1/16W (EXCEPT FX673: FR) 5% 1/16W (FX673: FR) 5% 1/16W 5% 1/16W 5% 1/16W 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 0.5% 5% 5% 5% 5% 0.5% 5% 5% 5% 5% 5% 5% 5% 5% 1/16W 1/16W 1/16W (FX673: FR) 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W 1/16W

SWITCH, SLIDE (DIRECTION) SWITCH, SLIDE (HOLD) SWITCH, KEY BOARD (p RADIO OFF) SWITCH, KEY BOARD (TUNE/PRESET +, FF AMS) SWITCH, KEY BOARD (TUNE/PRESET -, REW AMS) SWITCH, KEY BOARD (MENU) SWITCH, KEY BOARD (SET) SWITCH, KEY BOARD (BAND, RADIO ON) SWITCH, KEY BOARD (oe REPEAT) SWITCH, KEY BOARD (ENTER, COUNTER RESET) < TRANSFORMER >

T1 T2 T801

1-416-943-21 COIL (AM OSC) 1-416-942-21 COIL (AM IF) 1-423-745-11 TRANSFORMER, DC-DC CONVERTER < THERMISTOR >

THP601 1-810-794-11 THERMISTOR, POSITIVE < VIBRATOR > X1 1-767-357-11 FILTER, CERAMIC (10.7MHz) X2 1-579-615-11 VIBRATOR, CRYSTAL (75kHz) ************************************************************ MISCELLANEOUS ************** HP901 1-500-576-11 HEAD, MAGNETIC (PLAYBACK) M601 1-763-166-12 MOTOR (CAPSTAN/REEL) PM901 1-454-674-32 SOLENOID, PLUNGER S901 1-762-553-11 SWITCH, LEAF (TAPE DETECT, ATS) ************************************************************ ACCESSORIES & PACKING MATERIALS ******************************* 1-418-019-11 REMOTE CONTROL UNIT (FX673) 1-418-409-11 REMOTE CONTROL UNIT (RM-WMF21) (FX877) 1-528-252-21 BATTERY CHARGER (BC-7S) (FX673: UK, E, HK) 1-528-299-41 BATTERY, NI-CD (NC-6WM) (FX673: CND) 1-528-434-13 BATTERY CHARGER (BC-7SG) (FX673: AUS) The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

!

1-216-849-11 METAL CHIP 1-216-829-11 METAL CHIP

!

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WM-FX673/FX877

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

! ! ! ! ! !

1-528-543-11 BATTERY, NICKEL CADMIUM (NC-6WM) (FX673: E, EA, HK, AUS/FX877: CH) 1-528-543-22 BATTERY, NICKEL CADMIUM (NC-6WM) (FX673: AEP, UK. E, FR, EE, EA, HK, AUS/ FX877) 1-528-580-21 BATTERY CHARGER (BC-7HT) (FX877: JE) 1-528-661-14 BATTERY CHARGER (BC-7DR) (FX877: KR) 1-528-713-21 BATTERY CHARGER (BC-7DC) (FX673: CND) 1-528-744-23 BATTERY CHARGER (BC-7DY) (FX673: AEP, FR, EE, EA) 1-528-822-11 BATTERY CHARGER (BC-7DN) (FX877: CH) 1-569-007-11 ADAPTOR, CONVERSION 2P (FX877: JE) 1-759-213-11 CASE, BATTERY (FX673: CND, E, EA, HK, AUS/FX877) 1-759-700-21 CASE, BATTERY (FX673: AEP, UK, FR, EE) 3-008-521-01 CASE, BATTERY CHARGE (FX673/FX877: CH, KR) 3-008-521-21 CASE, BATTERY CHARGE (FX877: JE) 3-029-236-01 CARD, WARRANTY (P10) (FX877: JE) 3-029-488-01 POUCH, CARRYING 3-864-890-11 MANUAL, INSTRUCTION (ENGLISH, FRENCH) (FX673: CND, AEP, UK, FR, EE, EA, AUS, CH) 3-864-890-21 MANUAL, INSTRUCTION (SPANISH, PORTUGUESE) (FX673: AEP, EE) 3-864-890-31 MANUAL, INSTRUCTION (GERMAN, ITALIAN) (FX673: AEP) 3-864-890-41 MANUAL, INSTRUCTION (DUTCH, SWEDISH) (FX673: AEP) 3-864-890-51 MANUAL, INSTRUCTION (FINNISH) (FX673: AEP) 3-864-890-61 MANUAL, INSTRUCTION (POLISH, RUSSIAN) (FX673: EE) 3-864-890-71 MANUAL, INSTRUCTION (ENGLISH, CHINESE) (FX673: E, HK) 3-864-890-81 MANUAL, INSTRUCTION (ARABIC, CHINESE) (FX673: EA, CH) 3-866-189-11 MANUAL, INSTRUCTION (ENGLISH, KOREAN) (FX877: KR) 3-866-189-21 MANUAL, INSTRUCTION (JAPANESE, ENGLISH, KOREAN, CHINESE) (FX877: JE) 3-866-189-31 MANUAL, INSTRUCTION (ENGLISH, CHINESE) (FX877: CH) 8-953-272-90 HEADPHONE MDR-ED136SP//K SET (FX673: AEP, UK, E, FR, CET, EA, HK, AUS/ FX877: KR) 8-953-304-90 RECEIVER MDR-E805SP SET (FX673: CND/FX877: CH, JE)

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le neméro spécifié.

Sony Corporation
9-926-973-11
Personal A&V Products Company

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99C0578-1 Printed in Japan © 1999. 3 Published by Quality Engineering Dept. (Shinagawa)