US Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model SERVICE MANUAL CASSETTE PLAYER MICROFILM SPECIFICATIONS Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type MT-WMEX20-162 Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. Tape section Frequency response (Dolby NR off) Playback: 30 – 18,000 Hz Output Headphones (REMOTE 2 jack) Load impedance 8 – 300 Ω General Power requirements 1.5 V One rechargeable battery or one R6 (size AA) battery Dimensions (w/h/d) Approx. 78.7 × 108.6 × 18.7 mm (31/8 × 43/8 × 3/4 inches), incl. projecting parts and controls Mass Approx. 180 g (6.4 oz) Approx. 240 g (8.5 oz) (incl. rechargeable battery and a cassette) Supplied accessories Battery case (1) Stereo earphones with remote control (1) Battery charger (1) US, CND model : BC-7DC AEP, FR model : BC-7DY E, JE model : BC-7HT UK model : BC-7S AUS model : BC-7SG KR model : BC-9HR Rechargeable battery (1) US, CND, AEP, UK, FR, AUS model : NC-6WM, 1.2V, 600mAh, Ni-Cd KR, E, JE model: NH-14WM, 1.2V, 1400mAh, Ni-MH Rechargeable battery carrying case (1) Carrying pouch (1) E, JE, model: AC plug adaptor (1) Design and specifications are subject to change without notice • Abbreviation CND : Canadian model FR : French model AUS : Australian model KR : Korea model JE : Tourist model Ver 1.0 1999. 08 www. xiaoyu163. com QQ 376315150 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 — 2 — 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. Flexible Circuit Board Repairing • Keep the temperature of 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. TABLE OF CONTENTS 1. GENERAL ·········································································· 2 2. SERVICE NOTE ······························································· 3 3. DISASSEMBLY 3-1. Lid Assy, Cassette ··························································· 5 3-2. Case ················································································· 5 3-3. Ornament (Open) Block Assy ········································· 6 3-4. “Sub Board”, “Switch, Leaf”, “Main Board” ················· 6 3-5. Belt (F KAI), Motor (M601)··········································· 7 3-6. Holder Assy····································································· 7 3-7. Pinch Lever (N)/(R) Assy ··············································· 8 3-8. Magnetic Head (HP701) ················································· 8 4. MECHANICAL ADJUSTMENT ·································· 9 5. ELECTRICAL ADJUSTMENT ···································· 9 6. DIAGRAMS 6-1. Block Diagram ······························································ 10 6-2. Printed Wiring Board ···················································· 12 6-3. Schematic Diagram (1/2) ·············································· 15 6-4. Schematic Diagra (2/2) ················································· 18 6-5. IC Block Diagrams ······················································· 21 6-6. IC Pin Function Discription ·········································· 23 7. EXPLODED VIEWS 7-1. Cabinet Block, Main Board ·········································· 25 7-2. Mechanism Deck Block ················································ 26 8. ELECTRICAL PARTS LIST ······································· 27 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. SECTION 1 GENERAL 1 ∑ VOL knob 2 2 REMOTE jack 3 Operation button 4 HOLD/OPERATION knob 5 OPEN knob 6 Dry battery case contact 7 Rechargeable battery compartment 8 Headphones plug 9 DISPLAY window 0 SOUND button !¡ MODE button !™ HOLD button !£ 9((PLAY), p(STOP), button !¢ FF button !∞ REW button !§ VOL knob This section is extracted from instruction manual. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS 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 PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY. www. xiaoyu163. com QQ 376315150 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 — 3 — (S702) FWD←CNT→REV Battery terminal ’� Battery terminal ‘� Square wave (sine wave) 10 Hz, -3.5 dBs jumper GND S PH IN(S)(TP36) T PH IN(S)(TP37) AF OSC Plunger (PM701) ATS SWITCH (S704-2) BP1 TAPE IN SWITCH (S704-1) M601 M SECTION 2 SERVICE NOTE [Service Mode] The service mode enables to operate the mechanism of WM-EX20 while the MAIN board is opened. Rotation of the idler gear (A) (S side) is detected using the photo- reflector (PH702) in the WM-EX20. PH702 is located on the MAIN board, therefore the rotation of the idler gear (A) (S side) cannot be detected by PH702 when the MAIN board is removed. As a result, the motor cannot be controlled and cannot run correctly. To repair the machine after the MAIN board is removed while the main power is turned on, follow the procedures as described below. 1. Setting 1) Remove the cabinets referring to section “3. DISASSEMBLY”. Open the MAIN board. 2) Connect the motor (M601) and the plunger solenoid (PM701) to the MAIN board using the jumper wires. When the extension jig (1-769-143-11) (10 wires as a set) is used, they can be connected easily. 3) Short the TAPE IN switch land (BP1) with solder. Input a square (or sine) wave of 10 Hz (at 1.3 Vp-p) to both PH IN T land (TP37) and PH IN S land (TP36) with jumper wire. 4) Connect DC 1.3 V from external regulated power supply to ‘ and ’ terminals of the battery. 2. PRE-SET status The set must be in this state before the PLAY, FF and REW modes can be entered. 1) Make sure that the slider (F/R) is in the center position and that the F/R switch (S702) is in the center position. Make sure that the reel gear does not rotate by rotating the flywheel on the F side clockwise. If improper, place the set in the preset state according to the following instructions: 2) Repeat the step below some times to ensure the above conditions. * Pull away the trigger level from the plunger with tweezers or other means. Then rotate the flywheel on the F side clockwise. 3) Turn the stabilized power supply OFF once and then ON. 3. FF, REW modes 1) Check for “2. Preset state” and push the FF switch and the REW switch. 2) Move the F/R switch (S702) to the movement of the slider to enter the FF/REW mode. 4. PLAY mode 1) Check for “2. Preset state”. 2) Push the 9( switch on the remote commander to move the lever (SW) toward the R side. With timing to this, move the F/ R switch (S702) to enter the PLAY (R side) mode. Note 1: If failed, retry from the preset state. Note 2: The 9(, p, FF, and REW switches on the remote commander should be used whenever possible. – MAIN BOARD (SIDE B) — www. xiaoyu163. com QQ 376315150 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 — 4 — [ Slider (NR) ] [ Rotational system ] 1. Rotational System of PLAY Mode 2. Rotational System of FF Mode 3. Rotational System of REW Mode F side flywheel slider (NR) F side center R side motor pulley reverse pulley insert flywheel (R) insert flywheel (N) gear (reel) (T side) gear (reel) (S side) idler gear (A) (T side) idler gear (A) (S side) idler gear (B) gear (Y) gear (NR) FWD REV clutch assy (F) motor pulley gear (FR) reverse pulley insert flywheel (R) insert flywheel (N) gear (reel) (T side) idler gear (A) (T side) gear (Y) clutch assy (F) motor pulley gear (FR) gear (reel) (S side) reverse pulley insert flywheel (R) insert flywheel (N) idler gear (A) (S side) gear (Y) clutch assy (F) www. xiaoyu163. com QQ 376315150 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 — 5 — SECTION 3 DISASSEMBLY Lid Assy, Cassette Case Ornament (OPEN) Block Assy "Sub Board", "Switch, Leaf", "Main Board" Belt (F1), Motor (M601) Set Holder Assy Pinch Lever (N)/(R) Assy Magnetic Head (HP701) Note : Follow the disassembly procedure in the numerical order given. • The equipment can be removed using the following procedure. 3-1. LID ASSY, CASSETTE 3-2. CASE 1 Two screws (M1.4 × 2.2) Lid assy, cassette 3 2 Screw (M1.4 × 2.2) 4 Mechanism deck block 3 Two screws (M1.4 × 2.2) 4 Screw (M1.4 × 1.6) 5 2 Two screws (M1.4 × 2.2) Case 1 Lid, battery case www. xiaoyu163. com QQ 376315150 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 — 6 — 3-3. ORNAMENT (OPEN) BLOCK ASSY 3-4. “SUB BOARD”, “SWITCH, LEAF”, “MAIN BOARD” Mechanism deck block Ornament (open) block assy 2 1 Release the two claws from the two holes in the direction allow Claw Hole Hole Claw 3 Screw (M1.4 × 1.4) 5 Screw (M1.4) 6 SUB board 2 Screw (M1.4) qd MAIN board 1 Screw 4 Unsolder the 6 places. qa Unsolder the motor. 9 Unsolder the plunger. 0 Unsolder the flexible board. qs Claw 7 Screw (M1.4) 8 Switch leaf www. xiaoyu163. com QQ 376315150 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 — 7 — 2 Two screws (M1.4) 4 Motor (M601) 3 Retainer (F1) motor 1 Belt (F KAI) Belt (F KAI) 3-5. BELT (F KAI), MOTOR (M601) 3-6. HOLDER ASSY 4 Screw (M1.4) 2 Shaft 6 Shaft 1 Two screws (M1.4 × 1.4) 3 Lock lever (B) 0 Remove the holder assy in the direction of the arrow. 8 Remove soldering from Head flexible board. 5 Lock lever (S) 9 Head flexible board 7 Bracket (casette) assy www. xiaoyu163. com QQ 376315150 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 — 8 — 3-7. PINCH LEVER (N)/(R) ASSY 3-8. MAGNETIC HEAD (HP701) Claw Claw 2 Remove the pinch lever (N) assy in the direction of the arrow. Note: Be careful of the claw 1 Remove the pinch lever (R) assy in the direction of the arrow. Note: Be careful of the claw 1 Remove the magnetic head (HP701) in the direction of the arrow. www. xiaoyu163. com QQ 376315150 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 WM-EX20 — 9 — — 10 — — 11 — SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM SECTION 4 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. 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 SECTION 5 ELECTRICAL ADJUSTMENT PRECAUTION • Supplied voltage : 1.3 V • Switch and control position VOL switch : NORM • Remote control position HOLD switch : OFF VOL control : MAX SOUND mode : NORM DOLBY mode : OFF Test tape Tape Speed Adjustment Procedure : 1. Playback WS-48A (tape center part) in the REV state and adjust RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Value : 2. Playback WS-48A (tape counter part) in the FWD state. Check that frequency counter reading is within 2.5% of reading of step 1. Adjustment Location : Digital frequency counter 2,985 to 3,015 Hz Type WS-48A Signal 3 kHz, 0 dB Used for tape speed adjustment Mode Torque Meter Meter Reading 15 – 25 g • cm FWD CQ-102C (0.21 – 0.35 oz • inch) FWD less than 2 g • cm back tension (less than 0.03 oz • inch) 15 – 25 g • cm REV CQ-102RC (0.21 – 0.35 oz • inch) REV less than 2 g • cm back tension (less than 0.03 oz • inch) more than 50 g • cm FF, REW CQ-201B (more than 0.69 oz • inch) i test tape WS-48A (3 kHz, 0 dB) set REMOTE jack (J301) 32 Ω frequency counter RV601 AMS IN DOLBY CTL BOOST CTL F/R CTL SURRUND CTL HI UP CTL XO XI CASSETE SW M/N CTL PHOTO (T) CTL PHOTO (T) IN 40 BEEP 47 16 24 14 RV CTL 15 55 30 5 8 48 33 22 43 PHOTO (S) IN 42 PHOTO (S) CTL 20 SPEED DTL 35 MOTOR START 34 MOTOR U 26 MOTOR V 27 MOTOR W 29 CTRL 1 54 CTRL 2 53 MOTOR DIR 36 X701 4kHz MUTE CTL 31 PSIG CONTROL Q604 SURROUND SWITCH Q304 SURROUND SWITCH Q306 PLUNGER DRIVER Q701,704 RESET IC705 REVIVE CONTROL Q302 REVIVE CONTROL Q303 HI UP CONTROL Q301 RIPPLE FILTER RIPPLE FILTER Q305 VOL MAX SWITCH Q307 DOLBY SWITCH Q312 REMOTE SWITCH Q708 VOL MIN SWITCH Q308,310 METAL SWITCH Q313(1/2) T REEL SENS PH701 MOTOR SW Q601 -1 (TAPE IN) -2 (ATS) 12 10 41 39 40 42 43 44 46 S REEL SENS PH702 1/2 SPEED SWITCH Q602 INV. Q705,706 MOTOR START SWITCH Q603 RV601 TAPE SPEED 21 30 29 28 S704 P SIG IN 1 50 P SIG IN 2 51 POWER CTL 23 16 17 15 1 36 35 4 5 6 7 8 9 10 31 32 34 19 2 MOTOR SERVO IC601 9 11 13 2 4 6 8 7 10 12 1 3 5 MOTOR DRIVE Q605 8 1 2 SWITCH MTL DRV BEEP BEEP M/N SW F/R SW BST SW PW SW MT SW AMS IN PRE OUT R PRE OUT L PRE NF L PRE NF R + – + – 7 6 5 4 3 AUDIO AMP IC301 (1/2) VREF FWD L FWD R REV L REV R L R L R REF V ICI1 VI1 VI2 IV U IN V IN W IN CTRL 1 CTRL 2 DIR PSIG UT VT WT UT VT WT WS VS US TU TW TV TU TW TV W V U W V U C 16 WS VS US W OUT V OUT U OUT MCENTER MC B+ (+1.5V) SYSTEM CONTROL IC702 41 37 PM CTL RMUM DATA OUT 19 RST 2 1 3 A/B SW 46 MD SW 60 WAKE UP 58 BATT DET 2 62 B+ (+2.0V) 9 SURROUND AMP IC302 VCC B+ (+2.0V) SWITCH Q309 B+ (+2.0V) S301 VOLUME MIN NORM MAX PW IN C PW IN R PW IN L PW NF R PW NF L 26 32 27 28 21 35 22 20 + – + – METAL SWITCH Q313(2/2) + – PW OUT L PW OUT R 33 34 17 18 BASE RF OUT PW OUT C AGC IN AGC DET AUDIO AMP IC301 (2/2) B+ (+1.5V) B+ (+1.5V) VCC POWER SWITCH IC707 S702 FWD CNT REV S701 (A/B) KEY IN 63 BATT DET 1 61 S703 OPERATION 1 2 3 4 7 1 3 8 OUT1 OUT2 OUT3 OUT4 CE VCC VOLTAGE DETECT IC703 VOLTAGE DETECT IC704 LX V OUT B+ (+1.5V) B+ (+1.5V) B+ (+1.5V) 3 2 DC/DC CONVERTER IC701 B+ (+1.5V) B+ (+2.0V) RECHAGEABLE BATTERY NH-14WM(1.2V 1400mA) :E,JE,KR MODEL NC-6WM(1.2V 600mA) :US,CND,AUS,AEP,UK, FR MODEL AEP,UK,FR MODEL US,CND,AUS,E,JE,KR MODEL • Abbreviation CND : Canadian model AUS : Austratian model FR : French model KR : Korean model JE : Tourist model DC IN 1.5V BATTERY CASE BATTERY CASE DRY BATTERY SIDE "AA" (IEC DESIGNATION R6) 1PC, 1.5V DRY BATTERY SIDE "AA" (IEC DESIGNATION R6) 1PC, 1.5V GND REMO DATA VCC J301 REMOTE CAPSTAN /REEL MOTOR M601 HP701 (PLAYBACK) L CH R CH FWD L CH R CH REV INV. Q705,706 • Signal path : PB B+ (+1.5V) PW OUT IN D702 L702 + + + F701 0.25A W701 W702 PM701 PLUNGER 16 1 10 7 DOLBY SWITCH Q311 DOLBY AMP IC303 VCC 11 14 4 + 10 5 15 14 11 AMS OUT AMS DET PW Q314 INV. 29 SUB BOARD 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 WM-EX20 — 12 — — 13 — — 14 — 6-2. PRINTED WIRING BOARD Note on Printed Wiring Board: • Y : parts extracted from the conductor side. • z : Through hole. • b : Pattern from the side which enables seeing. Caution: Pattern face side: Parts on the pattern face side seen from (Side A) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side B) the parts face are indicated. -2 -2 -2 -1 -1 -1 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1 2 3 6 5 4 1-674-822- 11 (11) 11 (11) 11 (11) 11 (11) 1-674-822- 1-674-823- 1-674-823- PH701 (T REEL) PH702 (S REEL) -1 -2 S701 (A/B) TAPE SPEED REV CNT FWD Q605 MAIN BOARD (SIDE A) SUB BOARD (SIDE B) SUB BOARD (SIDE A) MAIN BOARD (SIDE B) S301 VOLUME J301 REMOTE MIN NORM MAX S704-1 TAPE IN SWITCH S704-2 ATS SWITCH PM701 (PLUNGER) V U W TV TW C TU L CH L CH FLEXIBLE BOARD R CH R CH HP701 (PLAYBACK ) REV FWD EXCEPT FR MODEL FR MODEL + + + DC IN 1.5V DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 1PCS, 1.5V BATTERY CASE BATTERY CASE AEP,UK,FR MODEL DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 1PCS, 1.5V US,CND,E,JE,KR,AUS MODEL RECHAGEABLE BATTERY NH-14WM (1.2V 1400mA) :E,JE,KR MOSEL NH-6WM (1.2V 600mA) :US,CND,AEP,UK,FR,AUS MODEL 1 2 A B C D E F G 3 4 5 6 7 8 9 10 11 12 13 14 15 16 M601 CAPSTAN/REEL MOTOR Ref. No. Location D701 B-5 D702 B-5 D703 B-6 IC301 E-6 IC302 C-7 IC303 D-5 IC601 D-2 IC701 B-5 IC702 D-11 IC703 B-5 IC704 B-6 IC705 B-5 Q301 D-6 Q302 D-6 Q303 D-7 Q304 C-6 Q305 E-7 Q306 D-6 Q307 C-5 Q308 C-5 Q309 C-6 Q310 C-6 Q311 C-5 Q312 C-4 Q313 F-6 Q314 E-9 Q601 C-1 Q602 C-13 Q603 C-3 Q604 C-12 Q605 D-2 Q701 B-6 Q704 B-6 Q705 C-4 Q706 C-4 Q707 E-4 Q708 C-4 • Semiconductor Location • Abbreviation CND : Canadian model AUS : Austrarian model FR : French model KR : Korean model JE : Tourist model 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 WM-EX20 — 15 — — 16 — — 17 — 6-3. SCHEMATIC DIAGRAM MAIN (1/2) SECTION Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • f : internal component. • C : panel designation. • U : B+ Line. • H : adjustment for repair. • Power voltage is dc 1.5 V and fed with regulated dc power supply from battery terminal. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : PLAY • Voltages are taken with a VOM (Input 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. E : PB • Abbreviation CND : Canadian model. AUS : Australian model. JE : Tourist model. FR : French model. KR : Korea model. • Refer to page 21, 22 for IC Block Diagrams. 0.1 1 IC601 456 0.5V/div 2µsec/div 2 IC601 0 0.5V/div 1µsec/div 444 Hz 150 Hz 5 Q605 80!™ 0.5V/div 5µsec/div 150 Hz 3 IC601 @•@ª#º� 0.2V/div 5µsec/div 150 Hz 150 Hz 4 Q605 135 0.5V/div 5µsec/div • Waveform 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 WM-EX20 — 18 — — 19 — — 20 — 6-4. SCHEMATIC DIAGRAM MAIN (2/2) SECTION Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • f : internal component. • C : panel designation. • U : B+ Line. • H : adjustment for repair. • Power voltage is dc 1.5 V and fed with regulated dc power supply from battery terminal. • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark: PLAY • Voltages are taken with a VOM (Input 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. • Abbreviation CND : Canadian model. AUS : Australian model. JE : Tourist model. FR : French model. KR : Korea model. • Refer to page 21, 22 for IC Block Diagrams. • Refer to page 23, 24 for IC Pin Function Description. • Waveform 1.3 1.3 0 0.7 0.6 S702 6 IC701 3 1V/div 5µsec/div 100 kHz 7 IC702 8 1V/div 0.2µsec/div 4 MHz 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 — 21 — — 22 — 6-5. IC BLOCK DIAGRAMS IC301 TA2123AF + – + – AGC DET BST PWC PWB + – PWA + – + – + – + – TOMP RIPPLE FILTER MIX MTL DRV VREF PREA PREB BEEP SW 36 35 34 33 32 31 30 29 28 27 26 25 24 22 21 20 19 18 17 16 15 14 13 23 12 11 10 9 8 7 6 5 3 2 1 4 48 47 46 45 44 43 42 41 40 39 38 37 AGC DET AGC IN BST NF BST OUT PW IN C LPF EQ L PW NF L PW IN L PW IN R PW NF R EQ R RF IN PW GND PW OUT R PW OUT C PW OUT L VCC BASE RF OUT GND AMS DET AMS MIX AMS IN VREF IN PRE GND M/N SW PRE SW F/R SW BST SW PW SW NT SW AMS OUT BEEP MT TC CAMP SW AMS IN PRE NF-R PRE OUT-R MTL DRV-R MTL DRV-L PRE OUT-L PRE NF-L REV IN-L REV IN-R REF OUT FWD IN-R FWD IN-L IC701 XC6372A211PR + – + – BIAS CIRCUIT WEIGHT G2 G1 V/I ACH BLOCK GM SUN BCH BLOCK (SAME ACH) 14 13 12 11 10 9 8 1 2 3 4 5 6 7 GND IREF VREF INB OUT B DC B DET B Vcc SW VEXT IN A OUT A DC A DET A IC601 LB1994M DECODER CTRL BLOCK POWER D/DT PULSE BUFFER COMPARATOR BUFFER VI COMPARATOR SOFT CLIP CURRENT AMP P-SIG PW•SW 4 5 6 1 2 9 7 8 14 15 16 17 18 19 20 21 22 24 23 25 26 27 30 29 28 36 35 34 33 32 31 WS MC U IN 3 VCC V IN W IN CTRL1 CTRL2 DIR VS US U OUT NC V OUT W OUT WT VT UT PGND FC CT2 CT1 IR ICI2 ICI1 I SOFT M CENTER GND VI2 VI1 IV VC 13 PW 12 CI 11 Vref 10 P SIG IC703 MM1305BWBE + – + – + – + – 1 2 3 4 8 7 6 5 VCC CE RIPPLE GND OUT 1 OUT 2 OUT 3 OUT 4 IC303 NJM2185AV IC302 NJM2190V 9 Lin VREF C3 GND C4 MODE Rout REFin Wout C2 V+/2 V+ Lout C1 Win Rin 10 11 12 13 14 15 16 1 5 2 3 4 6 7 8 – + EXT FILTER MATRIX MODE CONTROL BIAS BYPASS BYPASS SRS SRS 3 1 BUFFER PWM/PFM CONTROL OSC 50/100/180 kHz VLx LIMITER PHASE COMP V REF SLOW START 2 Lx Vss V OUT 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 — 23 — — 24 — 6-6. IC PIN FUNCTION DESCRIPTION • IC702 MB89135LPFV (SYSTEM CONTROL) Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 I/O I I O O O – – – I I(A/D) I(A/D) I(A/D) I(A/D) – Description Motor P-SIG signal input. Motor P-SIG signal input. Mode select signal output to Motor servo IC (IC601). Mode select signal output to Motor servo IC (IC601). Tone select switch signal output. L : OFF, Open : BOOSTON Not used. (Open) Ground. (A/D) Non connection Reference voltage input. (A/D) MD mode switch signal input. (FWD/CENTER/RVS mode) Power voltage detection signal input. Power voltage detection signal input. Operation switch signal input. Not used. (Open) Pin Name P-SIG IN2 P-SIG IN1 CTL2 CTL1 BOOST CTL NC AVss NC AVR MD SW BATT DET1 BATT DET2 KEY IN NC Pin No. 1 2 3 4 5 6, 7 8 9 10 11, 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38, 39 40 41 42 43 44, 45 46 47 48 49 50 I/O – I I I I – O – O – O O O O – O O O – O O O – O O – O O O – O O O O I – I O I I – I O I – I Description Power supply terminal. (A/D) Reset signal input. Test input terminal. (Connect to Vss terminal.) Test input terminal. (Connect to Vss terminal.) Crystal oscillator connection terminal. (4 MHz) Not used. (Open) Crystal oscillator connection terminal. (4 MHz) Power supply pin. Not used. (Open) Not used. (Open) Not used. (Open) Tone select switch signal output. H: HI UP ON Tone select switch signal output. H: REVIVE ON Dolby circuit control signal output. L: ON Not used. (Open) Music with/without detection (AMS) signal output. (H : with, L :without) Plunger control signal output. H : ON Rotational detection intermittent signal output. H : ON Not used. (Open) Rotational detection intermittent signal output. H : ON Audio circuit and DDC control signal output. L : STOP, H : NORMAL Surround circuit control signal output. L : ON Ground Motor control signal output. Motor control signal output. Not used. (Open) Motor control signal output. Head select signal output. L : FWD, H : RVS Audio muting control signal output. L : MUTE ON Not used. (Open) Metal/normal tape select signal output. Motor wake-up signal output. L : wake-up, open : normally Motor speed 1/2 control signal output. L :1/2 speed, H :normally Motor rotational derection control signal output. L :CW, Open :CCW Remote control with/without detection signal input. Not used. (Open) Music with/without detection (AMS) signal input. H : without Communication data signal output. Rotational detectionsignal input. Rotational detectionsignal input. Not used. (Open) Side A/B detection switch dignal input. L :side A, H : side B Beep signal output. Cassette with/without detection switch signal input. L :with, H :without Not used. (Open) Clock make up signal input. Pin Name AVCC RST MODE0 MODE1 X0 NC X1 VCC X0A NC X1A HI UP CTL RV CTL DOLBY CTL NC AMS OUT PM CLT PHOTO(S)CTL NC PHOTO(T)CTL POWER CTL SURROUND CTL VSS MOTOR U MOTOR V NC MOTOR W F/R CTL MUTE CTL NC M/N CTL MOTOR START SPEED CTL MOTOR DIR RMUM NC AMS IN DATA OUT PHOTO(S)IN PHOTO(T)IN NC A/B SW BEEP CASSETTE SW NC WAKE UP 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 SECTION 7 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may have some differences from the original one. • 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. • Hardware (# mark) list and accessories and packing materials are given in the last of this parts list. — 25 — • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) ↑ ↑ Parts of Color Cabinet’s Color • Abbreviation CND : Canadian model AUS : Australian model FR : French model KR : Korea model JE : Tourist model 7-1. CASE SECTION Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1 3-038-057-01 TERMINAL BOARD, BATTERY 2 3-345-648-71 SCREW(M1.4), TOOTHED LOCK 3 3-375-114-41 SCREW 4 3-038-056-01 TERMINAL BOARD (MINUS) (/M) 5 A-3061-994-A MAIN BOARD, COMPLETE (EXCEPT FR) 5 A-3061-997-A MAIN BOARD, COMPLETE (FR) 6 3-038-624-01 LID,BATTERY CASE 7 3-366-892-11 SCREW(M1.4 × 1.4) 8 X-3377-726-1 TERMINAL BOARD ASSY (/M) 9 A-3052-056-A ORNAMENT (OPEN) BLOCK ASSY 10 3-038-627-01 SHEET (CASE), ADHESIVE 11 4-963-883-51 SCREW (M1.4), PRECISION PAN 12 3-029-220-01 SPRING, TENSION 13 3-365-630-41 SCREW (M1.4) 14 X-3377-717-1 BRACKET ASSY (/M) 15 3-038-054-01 LEVER (B) (/M), LOCK 16 3-366-892-01 SCREW (M1.4) 17 X-3377-780-1 BRACKET (CASSETTE) ASSY 18 X-3377-779-1 LID ASSY, CASSETTE 19 3-704-197-41 SCREW (M1.4 × 2.2) 20 3-038-630-01 COVER, MD (JE) 20 3-038-630-11 COVER, MD (AEP,UK,FR) 20 3-038-630-21 COVER, MD (US,CND,E,KR,AUS) 21 3-038-616-01 ORNAMENT (CASE) 22 3-038-615-01 CASE(1680) 23 3-704-197-01 SCREW (M1.4 × 1.6), LOCKING 24 3-038-617-01 KNOB(VOL) 25 3-038-625-01 WINDOW (CASSETTE), ORNAMENT 26 3-038-628-01 SHEET (CASSETTE WINDOW) * 27 1-674-823-11 SUB BOARD 28 3-324-509-01 CUSHION 29 3-031-460-01 SHEET(BT) S704 1-762-553-11 SWITCH, LEAF (TAPE IN/ATS) 29 28 1 2 3 11 4 3 5 6 8 7 7 15 9 16 27 14 13 17 18 19 19 19 19 26 25 20 21 10 24 22 23 A A B B 11 12 � MT-WMEX20-162 S704 www. xiaoyu163. com QQ 376315150 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 — 26 — 7-2. MECHANISM DECK BLOCK Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 51 X-3377-589-1 HOLDER (FA) ASSY 52 X-3377-995-1 LEVER (R2) ASSY, PINCH 53 X-3377-994-1 LEVER (N2) ASSY, PINCH 54 3-029-275-01 WASHER (STOPPER N) 55 3-029-278-01 WASHER 56 X-3377-037-1 CHASSIS ASSY (FA) 57 3-386-694-01 WASHER 58 3-029-287-11 SPRING (TG), TORSION 59 3-029-281-01 GEAR, IDLER (B) 60 3-029-306-11 FLYWHEEL (N), INSERT 61 3-029-285-01 GEAR, CAM 62 3-029-282-01 GEAR(Y) 63 3-029-284-01 LEVER, TRIGGER 64 X-3376-813-1 CLUCH ASSY (F) 65 3-932-724-21 WASHER 66 3-029-286-01 GEAR(NR) 67 3-038-612-01 BELT(F KAI) 68 3-007-433-01 SHEET (N), REFLECTION 69 3-029-283-01 GEAR, IDLER (A) 70 3-029-765-01 SCREW (M1.4), TOOTHED LOCK 71 3-029-268-11 FLYWHEEL (R), INSERT 72 3-029-883-01 RETAINER (F1), MOTOR 73 3-029-273-01 GEAR(FR) 74 3-010-273-02 GEAR(REEL) 75 3-029-288-01 PULLEY, REVERSE 76 3-010-954-01 SPRING (BT), COMPRESSION 77 3-010-274-02 TABLE, REEL 78 3-029-289-01 WASHER 79 3-029-276-01 WASHER (STOPPER R) 80 3-007-428-01 WASHER (R) 81 3-029-271-11 SPRING (HD) 82 3-038-611-01 SPRING (HD2) 83 3-038-610-01 LEVER, HEAD 84 3-038-613-01 SEAL(MOTOR) 85 3-033-757-01 SHEET(H) M601 1-763-165-21 MOTOR (CAPSTAN/REEL MOTOR) (WITH PULLY) HP701 1-500-623-31 HEAD, MAGNETIC (PLAYBACK) PM701 1-454-674-31 SOLENOID, PLUNGER 51 M601 HP701 PM701 52 54 55 53 56 58 59 60 61 62 64 63 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 81 82 83 85 84 57 80 www. xiaoyu163. com QQ 376315150 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 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks — 27 — SECTION 8 ELECTRICAL PARTS LIST 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, -X mean standardized parts, so they may have some difference from the original one. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • CAPACITORS: uF: µF • RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable • COILS uH: µH • Abbreviation CND : Canadian model AUS : Australian model FR : French model KR : Korea model JE : Tourist model • SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD... When indicating parts by reference number, please include the board name. 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. A-3061-994-A MAIN BOARD, COMPLETE (EXCEPT FR) ********************* A-3061-997-A MAIN BOARD, COMPLETE (FR) ********************* 3-032-323-01 PAPER (A), SHIELD < CAPACITOR > C103 1-107-520-11 TANTAL. CHIP 33uF 20% 2.5V C104 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C106 1-115-156-11 CERAMIC CHIP 1uF 10V C107 1-115-156-11 CERAMIC CHIP 1uF 10V C108 1-115-156-11 CERAMIC CHIP 1uF 10V C109 1-115-156-11 CERAMIC CHIP 1uF 10V C110 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C111 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C112 1-113-619-11 CERAMIC CHIP 0.47uF 10V C113 1-115-156-11 CERAMIC CHIP 1uF 10V C203 1-107-520-11 TANTAL. CHIP 33uF 20% 2.5V C204 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C206 1-115-156-11 CERAMIC CHIP 1uF 10V C207 1-115-156-11 CERAMIC CHIP 1uF 10V C208 1-115-156-11 CERAMIC CHIP 1uF 10V C209 1-115-156-11 CERAMIC CHIP 1uF 10V C210 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C211 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C212 1-113-619-11 CERAMIC CHIP 0.47uF 10V C213 1-115-156-11 CERAMIC CHIP 1uF 10V C301 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V C302 1-113-600-11 TANTAL. CHIP 2.2uF 20% 6.3V C303 1-135-316-11 TANTAL. CHIP 22uF 20% 2.5V C304 1-115-156-11 CERAMIC CHIP 1uF 10V C305 1-164-360-11 CERAMIC CHIP 0.1uF 16V C307 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V C308 1-164-505-11 CERAMIC CHIP 2.2uF 16V C309 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C310 1-165-112-11 CERAMIC CHIP 0.33uF 16V C311 1-165-128-11 CERAMIC CHIP 0.22uF 16V C312 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C313 1-164-360-11 CERAMIC CHIP 0.1uF 16V C314 1-162-927-11 CERAMIC CHIP 100PF 5% 50V C315 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V C316 1-135-151-21 TANTALUM CHIP 4.7uF 20% 4V C317 1-125-976-91 TANTAL. CHIP 150PF 20% 2.5V C318 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C319 1-104-847-11 TANTAL. CHIP 22uF 20% 4V C320 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C321 1-135-201-11 TANTALUM CHIP 10uF 20% 4V C323 1-135-201-11 TANTALUM CHIP 10uF 20% 4V C324 1-135-201-11 TANTALUM CHIP 10uF 20% 4V C325 1-162-967-11 CERAMIC CHIP 0.0033uF 10% 50V C326 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C327 1-107-826-91 CERAMIC CHIP 0.1uF 10% 16V C328 1-115-156-11 CERAMIC CHIP 1uF 10V C329 1-115-156-11 CERAMIC CHIP 1uF 10V C601 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V C602 1-115-156-11 CERAMIC CHIP 1uF 10V C603 1-115-156-11 CERAMIC CHIP 1uF 10V C604 1-115-156-11 CERAMIC CHIP 1uF 10V C605 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V C606 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C607 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V C608 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V C609 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C610 1-127-671-91 CERAMIC CHIP 10000PF 5% 50V C611 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C612 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V C701 1-164-505-11 CERAMIC CHIP 2.2uF 16V C702 1-135-259-11 TANTAL. CHIP 10uF 20% 6.3V C703 1-115-156-11 CERAMIC CHIP 1uF 10V C704 1-164-505-11 CERAMIC CHIP 2.2uF 16V C705 1-115-156-11 CERAMIC CHIP 1uF 10V C706 1-164-360-11 CERAMIC CHIP 0.1uF 16V < CAPACITOR BLOCK > CB301 1-131-597-21 CERAMIC CHIP 15000PF 0 25V CB302 1-127-575-21 CERAMIC CHIP 470PF 0 50V < DIODE > D101 8-719-422-37 DIODE MA8051 D201 8-719-422-37 DIODE MA8051 D301 8-719-422-37 DIODE MA8051 D701 8-719-073-01 DIODE MA111-(K8).S0 D702 8-719-049-09 DIODE 1SS367-T3SONY D703 8-719-422-37 DIODE MA8051 < FUSE > F701 1-533-792-11 FUSE (SMD) 0.25A/125V < FERRITE BEAD > FB701 1-414-760-21 INDUCTOR CHIP 0uH MAIN www. xiaoyu163. com QQ 376315150 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 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks — 28 — < IC > IC301 8-759-579-12 IC TA2123AF(EL) IC302 8-759-597-24 IC NJM2190V(TE2) IC303 8-759-488-80 IC NJM2185AV-TE2 IC601 8-759-553-51 IC LB1994M-TLM IC701 8-759-597-25 IC XC6372A211PR IC702 8-759-597-27 IC MB89135LPFV-534-STR IC703 8-759-438-27 IC MM1305BWBE IC704 8-759-445-09 IC XC61AS0VXXMR IC705 8-759-592-24 IC XC61AN1502MR < JACK > J301 1-779-867-81 JACK (2/REMOTE) < JUMPER CHIP > JC101 1-216-864-11 METAL CHIP 0 5% 1/16W (EXCEPT FR) JC201 1-216-864-11 METAL CHIP 0 5% 1/16W (EXCEPT FR) < COIL > L701 1-412-034-11 INDUCTOR CHIP 330uH < PHOTO INTERRUPTER > PH701 8-749-016-56 REFLECTOR NJL5197K-F20(TE1) PH702 8-749-016-56 REFLECTOR NJL5197K-F20(TE1) < TRANSISTOR > Q301 8-729-426-36 TRANSISTOR XP1215-TXE Q302 8-729-037-76 TRANSISTOR UN9215J-(TX).SO Q303 8-729-426-36 TRANSISTOR XP1215-TXE Q304 8-729-046-89 TRANSISTOR 2SB970-S(TX).S0 Q305 8-729-800-71 TRANSISTOR 2SB815B7-TB Q306 8-729-038-05 TRANSISTOR HN1K02FU(T5RSONY) Q307 8-729-038-05 TRANSISTOR HN1K02FU(T5RSONY) Q308 8-729-230-63 TRANSISTOR 2SC4116-YG Q309 8-729-426-36 TRANSISTOR XP1215-TXE Q310 8-729-230-63 TRANSISTOR 2SC4116-YG Q311 8-729-038-05 TRANSISTOR HN1K02FU(T5RSONY) Q312 8-729-046-89 TRANSISTOR 2SB970-S(TX).S0 Q313 8-729-038-05 TRANSISTOR HN1K02FU(T5RSONY) Q314 8-729-037-63 TRANSISTOR UN9115J-(TX).SO Q601 8-729-043-94 TRANSISTOR CPH3106-PM-TL Q602 8-729-037-76 TRANSISTOR UN9215J-(TX).SO Q603 8-729-420-24 TRANSISTOR 2SB1218A-QRS Q604 8-729-037-71 TRANSISTOR UN9210J-(TX).SO Q605 8-729-039-36 TRANSISTOR MDC06TR Q701 8-729-046-89 TRANSISTOR 2SB970-S(TX).S0 Q704 8-729-020-99 TRANSISTOR UN5215-RS-TX Q705 8-729-427-51 TRANSISTOR XP4215-TXE Q706 8-729-426-36 TRANSISTOR XP1215-TXE Q707 8-729-402-16 TRANSISTOR XN4608 Q708 8-729-425-46 TRANSISTOR XP4315-TXE < RESISTOR > R101 1-216-845-11 METAL CHIP 100K 5% 1/16W R102 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R103 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R104 1-216-835-11 METAL CHIP 15K 5% 1/16W R105 1-216-811-11 METAL CHIP 150 5% 1/16W R107 1-216-837-11 METAL CHIP 22K 5% 1/16W R108 1-216-789-11 METAL CHIP 2.2 5% 1/16W R110 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R111 1-216-839-11 METAL CHIP 33K 5% 1/16W R112 1-216-823-11 METAL CHIP 1.5K 5% 1/16W R113 1-216-857-11 METAL CHIP 1M 5% 1/16W R114 1-216-841-11 METAL CHIP 47K 5% 1/16W R115 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R116 1-216-835-11 METAL CHIP 15K 5% 1/16W R150 1-216-811-11 METAL CHIP 150 5% 1/16W (FR) R201 1-216-845-11 METAL CHIP 100K 5% 1/16W R202 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R203 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R204 1-216-835-11 METAL CHIP 15K 5% 1/16W R205 1-216-811-11 METAL CHIP 150 5% 1/16W R207 1-216-837-11 METAL CHIP 22K 5% 1/16W R208 1-216-789-11 METAL CHIP 2.2 5% 1/16W R210 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R211 1-216-839-11 METAL CHIP 33K 5% 1/16W R212 1-216-823-11 METAL CHIP 1.5K 5% 1/16W R213 1-216-857-11 METAL CHIP 1M 5% 1/16W R214 1-216-841-11 METAL CHIP 47K 5% 1/16W R215 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R216 1-216-835-11 METAL CHIP 15K 5% 1/16W R250 1-216-811-11 METAL CHIP 150 5% 1/16W (FR) R301 1-216-841-11 METAL CHIP 47K 5% 1/16W R302 1-216-837-11 METAL CHIP 22K 5% 1/16W R303 1-216-853-11 METAL CHIP 470K 5% 1/16W R304 1-216-849-11 METAL CHIP 220K 5% 1/16W R305 1-216-823-11 METAL CHIP 1.5K 5% 1/16W R306 1-216-851-11 METAL CHIP 330K 5% 1/16W R307 1-216-793-11 RES,CHIP 4.7 5% 1/16W R308 1-216-833-91 RES,CHIP 10K 5% 1/16W R309 1-216-823-11 METAL CHIP 1.5K 5% 1/16W R310 1-216-837-11 METAL CHIP 22K 5% 1/16W R311 1-218-899-11 METAL CHIP 150K 0.50% 1/16W R312 1-218-887-11 METAL CHIP 47K 0.50% 1/16W R314 1-216-837-11 METAL CHIP 22K 5% 1/16W R315 1-216-853-11 METAL CHIP 470K 5% 1/16W R316 1-216-853-11 METAL CHIP 470K 5% 1/16W R317 1-216-837-11 METAL CHIP 22K 5% 1/16W R318 1-216-837-11 METAL CHIP 22K 5% 1/16W R319 1-216-837-11 METAL CHIP 22K 5% 1/16W R321 1-216-853-11 METAL CHIP 470K 5% 1/16W R322 1-216-805-11 METAL CHIP 47 5% 1/16W R323 1-216-805-11 METAL CHIP 47 5% 1/16W R601 1-216-841-11 METAL CHIP 47K 5% 1/16W R602 1-216-841-11 METAL CHIP 47K 5% 1/16W R603 1-216-837-11 METAL CHIP 22K 5% 1/16W R604 1-216-833-91 RES,CHIP 10K 5% 1/16W R605 1-216-845-11 METAL CHIP 100K 5% 1/16W R606 1-216-833-91 RES,CHIP 10K 5% 1/16W R607 1-216-853-11 METAL CHIP 470K 5% 1/16W R608 1-216-833-91 RES,CHIP 10K 5% 1/16W R609 1-216-849-11 METAL CHIP 220K 5% 1/16W R610 1-216-847-11 METAL CHIP 150K 5% 1/16W R611 1-216-829-11 METAL CHIP 4.7K 5% 1/16W R612 1-216-845-11 METAL CHIP 100K 5% 1/16W R613 1-216-829-11 METAL CHIP 4.7K 5% 1/16W R614 1-216-829-11 METAL CHIP 4.7K 5% 1/16W MAIN www. xiaoyu163. com QQ 376315150 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 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks — 29 — R615 1-216-831-11 METAL CHIP 6.8K 5% 1/16W R616 1-216-845-11 METAL CHIP 100K 5% 1/16W R617 1-216-851-11 METAL CHIP 330K 5% 1/16W R618 1-216-857-11 METAL CHIP 1M 5% 1/16W R619 1-216-857-11 METAL CHIP 1M 5% 1/16W R620 1-216-845-11 METAL CHIP 100K 5% 1/16W R702 1-216-855-11 METAL CHIP 680K 5% 1/16W R703 1-216-821-11 METAL CHIP 1K 5% 1/16W R704 1-216-853-11 METAL CHIP 470K 5% 1/16W R705 1-216-853-11 METAL CHIP 470K 5% 1/16W R706 1-216-855-11 METAL CHIP 680K 5% 1/16W R707 1-216-821-11 METAL CHIP 1K 5% 1/16W R708 1-216-845-11 METAL CHIP 100K 5% 1/16W R709 1-216-849-11 METAL CHIP 220K 5% 1/16W R710 1-216-849-11 METAL CHIP 220K 5% 1/16W R712 1-216-853-11 METAL CHIP 470K 5% 1/16W R713 1-216-853-11 METAL CHIP 470K 5% 1/16W R714 1-216-841-11 METAL CHIP 47K 5% 1/16W R715 1-216-849-11 METAL CHIP 220K 5% 1/16W R716 1-216-853-11 METAL CHIP 470K 5% 1/16W R717 1-218-879-11 METAL CHIP 22K 0.50% 1/16W R718 1-216-845-11 METAL CHIP 100K 5% 1/16W R719 1-216-849-11 METAL CHIP 220K 5% 1/16W R720 1-216-833-91 RES,CHIP 10K 5% 1/16W R721 1-216-845-11 METAL CHIP 100K 5% 1/16W R722 1-216-849-11 METAL CHIP 220K 5% 1/16W R723 1-216-853-11 METAL CHIP 470K 5% 1/16W R724 1-216-841-11 METAL CHIP 47K 5% 1/16W R725 1-218-839-11 METAL CHIP 470 0.50% 1/16W R726 1-218-851-11 METAL CHIP 1.5K 0.50% 1/16W R727 1-216-821-11 METAL CHIP 1K 5% 1/16W R728 1-216-849-11 METAL CHIP 220K 5% 1/16W R729 1-216-853-11 METAL CHIP 470K 5% 1/16W < COMPOSITION CIRCUIT BLOCK > RB301 1-234-214-21 RES, NETWORK 1.5K (3216) < VARIABLE RESISTOR > RV601 1-223-325-21 RES, ADJ, METAL GLAZE 100K < SWITCH > S301 1-692-605-11 SWITCH, SLIDE (VOLUME) S701 1-762-516-11 SWITCH, PUSH (1 KEY)(A/B) S702 1-771-475-21 SWITCH, SLIDE (F/R) < VIBRATOR > X701 1-767-289-11 VIBRATOR, CERAMIC (4MHz) ************************************************************ * 1-674-823-11 SUB BOARD ********* < SWITCH > S703 1-771-053-21 SWITCH, KEY BOARD (OPERATION) ************************************************************ MISCELLANEOUS ************* S704 1-762-553-11 SWITCH, LEAF (TAPE IN/ATS) M601 1-763-165-21 MOTOR (CAPSTAN/REEL MOTOR) (WITH PULLY) HP701 1-500-623-11 HEAD, MAGNETIC (PLAYBACK) PM701 1-454-674-32 SOLENOID, PLUNGER ************************************************************ ACCESSORIES & PACKING MATERIALS ******************************* 1-418-544-11 REMOTE CONTROL UNIT(RM-WME22S) ! 1-528-252-21 BATTERY CHARGER (BC-7S) (UK) 1-528-299-41 BATTERY, NI-CD (NC-6WM) (AEP,UK,FR) 1-528-299-51 BATTERY, NI-CD (NC-6WM) (US,CND) ! 1-528-434-13 BATTERY CHARGER (BC-7SG) (AUS) 1-528-543-22 BATTERY, NI-CD (NC-6WM) (AUS) ! 1-528-580-21 BATTERY CHARGER (BC-7HT) (E,JE) ! 1-528-676-22 BATTERY CHARGER (BC-9HR) (KR) ! 1-528-713-21 BATTERY CHARGER (BC-7DC) (US,CND) ! 1-528-744-23 BATTERY CHARGER (BC-7DY) (AEP,FR) 1-528-842-11 BATTERY, NICKEL HYDROGEN (NH-14WM) (E,KR,JE) ! 1-569-007-11 ADAPTOR, CONVERSION 2P (E,JE) 1-759-213-11 CASE, BATTERY (US,CND,E,KR,AUS,JE) 1-759-700-21 CASE, BATTERY (DC IN 1.5V) (AEP,UK,FR) 3-008-521-01 CASE, BATTERY RECHARGEABLE 3-029-488-01 POUCH, CARRYING 3-867-217-01 MANUAL, INSTRUCTION (JAPNESE/ENGLISH/KOREAN) (JE) 3-867-217-11 MANUAL, INSTRUCTION (ENGLISH/FRENCH) (US,CND,AEP,UK,FR,AUS,CND,CND) 3-867-217-21 MANUAL, INSTRUCTION (GERMAN/DUTCH) (AEP) 3-867-217-31 MANUAL, INSTRUCTION (SWEDISH/ITALIAN) (AEP) 3-867-217-41 MANUAL, INSTRUCTION (SPANISH/PORTUGUESE)(AEP,E) 3-867-217-51 MANUAL, INSTRUCTION (FINNISH) (AEP) 3-867-217-61 MANUAL, INSTRUCTION (ENGLISH/CHINESE/KOREAN) (E,KR) 8-953-739-90 HEADPHONE MDR-E832SP MAIN SUB 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. www. xiaoyu163. com QQ 376315150 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 — 30 — WM-EX20 Sony Corporation Personal Audio Company 99H1689-1 Printed in Japan ©1999.8 Published by General Engineering Dept. 9-927-157-11 www. xiaoyu163. com QQ 376315150 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