Canadian Model WM-EX170 AEP Model E Model WM-EX170/172 SERVICE MANUAL CASSETTE PLAYER MICROFILM SPECIFICATIONS Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type MT-WMEX170-114 Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. • Power requirements 3V DC batteries R6 (AA) × 2 / External DC 3V power sources • Dimensions 88.5 × 111.5 × 37.6 mm (3 1/2 × 4 1/2 × 1 1/2 inches) (w / h/ d) incl. projecting parts and controls • Mass EX170 : Approx. 125 g (4.5 oz) / Approx. 185 g (6.6 oz) incl. batteries and a cassette EX172 : Approx. 130 g (4.6 oz) / Approx. 190g (6.8 oz) incl. batteries and a cassette • Supplied accessories Stereo headphones or Stereo earphones (1) / Belt clip (1) Design and specifications are subject to change without notice. Photo : WM-EX172 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 — TABLE OF CONTENTS Flexible Circuit Board Repairing • Keep the temperature of the soldering iron aroud 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. SECTION 1 GENERAL 1. GENERAL ······································································ 2 2. DISASSEMBLY 2-1. Cabinet (Front) Assy ·························································· 3 2-2. Main Board ········································································· 4 2-3. Cassette Lid ········································································ 4 2-4. Mechanism Deck ································································ 5 2-5. Belt, Motor (Reel/Capstan) ················································ 5 3. MECHANICAL ADJUSTMENT ······························ 6 4. ELECTRICAL ADJUSTMENT ································ 6 5. DIAGRAMS 5-1. Block Diagram ··································································· 7 5-2. Printed Wiring Board (EX170 Model) ······························· 9 5-3. Schematic Diagram (EX170 Model) ································ 11 5-4. Printed Wiring Board (EX172 Model) ····························· 13 5-5. Schematic Diagram (EX172 Model) ································ 15 5-6. IC Block Diagrams ··························································· 17 6. EXPLODED VIEWS 6-1. Cabinet Section································································· 18 6-2. Main Board Section ·························································· 19 6-3. Mechanism Section-1 (MT-WMEX170-114) ·················· 20 6-4. Mechanism Section-2 (MT-WMEX170-114) ·················· 21 7. ELECTRICAL PARTS LIST ··································· 22 This section is extracted from instruction manual. EX172 MODEL 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 — Cassette, lid Cabinet (front) assy A 1 Two screws [Screw (B1.7 × 9), tapping] SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (FRONT) ASSY 2 Insert the precision screwdriver (1.4 mm flat-blade) into the slit at claw A and release the claw. 3 Remove the cabinet (front) assy. (Release all claws B to L in alphabetical order.) • This set can be disassembled in the order shown below. 2-1. CABINET (FRONT) ASSY 2-2. MAIN BOARD 2-3. CASSETTE LID 2-4. MECHANISM DECK 2-5. BELT, MOTOR (REEL/CAPSTAN) B L K C D E F G H I J 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 — 5 Spring (torsion) B A 1 Open the cassette lid. 4 Cassette lid. 2-2. MAIN BOARD 2-3. CASSETTE LID 2 Insert a precision screwdriver (1.4 mm flat-blade) vertically into portion A to release the hinge plate. 3 Portion B to release the hinge plate. 1 Head flexible board (CN301) 5 Two claws 6 MAIN board 3 Remove the four solders. 4 Screw (M1.4), toothed lock (WH) 2 Flexible board (CN302) 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 — 2 Two screw [screw (M1.4), special head] 3 Motor (reel/capstan) 1 Belt 2-4. MECHANISM DECK 2-5. BELT, MOTOR (REEL/CAPSTAN) 1 Insert the precision screwdriver (1.4 mm flat-blabe) in to the slit and release two claws. 2 Remove the mechanism deck 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 — 6 — SECTION 3 MECHANICAL ADJUSTMENT SECTION 4 ELECTRICAL ADJUSTMENT PRECAUTION 1. Clean the following parts with a denatured-alcahol-moistened sweb : Playback head Pinch roller Rubber belt Capstan 2. Demagnetize the playback head using a demagnetizer. 3. Do not use a magnetized screwdriver for adjustments. 4. After adjusting, apply screw-locking compound onto the adjusted parts. 5. Unless specified otherwise, use a specified voltage (3.0V) to perform the adjustments. Torqu Measurement Mode FWD FWD Back Tension REV REV Back Tension FF REW Torqu meter CQ-102C CQ-102RC CQ-201B Meter reading 20 - 30 g · cm 0.4 - 2.0 g · cm 20 - 30 g · cm 0.4 - 2.0 g · cm More than 40 g · cm PRECAUTION 1. Specified voltage : 3.0V 2. Switch position DOLBY NR switch : OFF (EX172 MODEL) AVLS switch : NORM CASSETTE SECTION Test Tape Tape Speed Adjustmnet Procedure : 1. Playback WS-48A (Tape center part) and adjust RV601 so that the frequency counter reading becomes 3,000Hz ± 15Hz. 2. Playback WS-48A (Tape top and end). Check that frequency counter reading is within 1.5% of the reading of step1. Adjustment Point : [MAIN BOARD] —CONDUCTOR SIDE — Type WS-48A Signal 3kHz, 0dB Purpose Tape Speed Adjustment Test tape WS-48A (3kHz, 0dB) Set 16Ω PHONES jack + – Frequency counter RV601: Tape speed 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-EX170/EX172 SECTION 5 DIAGRAMS 5-1. BLOCK DIAGRAM — 7 — — 8 — IC301 28 L R 29 32 35 RV301 VOLUME HP901 PLAYBACK HEAD M901 REEL/CAPSTAN MOTOR 34 24 18 15 23 4 11 13 5 10 19 36 1 8 4 LIMIT NORMAL PRE + POWER AMP IC331 DOLBY NR IC601 MOTOR DRIVE MAIN BOARD J302 J301 DC IN 3V PHONES S305 AVLS D150 BATT S302 (POWER) 17 15 14 4 U W IN+ 13 S/S V VREF 5 6 21 22 3 7 RV601 TAPE SPEED S303 NORM VREF PRE OUT2 L MIX IN 2L MIX OUT L MIX OUT R PWR IN2 L PWR IN1 R HP IN 2L MIX IN 1R HP IN 1R PRE OUT1 R VREF 25 6 RV351 HIGH RV352 LOW S351 MEGA BASS OFF – ON 14 VREF VREF S352 DOLBY NR ON – OFF S351 MEGA BASS OFF – ON VREF M.B ON/OFF LOW BOOST GAIN COM VCC AVLS PWR OUT 1(R) PWR OUT 2(L) MEGA BASS UNIT MEGA BASS UNIT EX170 MODEL EX172 MODEL 26 (TAPE SELECTOR) CrO2/METAL EX172 MODEL EX170 MODEL EX170 MODEL EX170 MODEL IN L IN R OUT L OUT R 20 DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 2PCS, 3V ON/OFF • Signal path. E : PB 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-EX170/EX172 1 2 A B C D E F G H 3 4 5 6 7 8 9 10 11 12 — 9 — — 10 — 5-2. PRINTED WIRING BOARD (EX170 MODEL) Ref. No. Location D150 H-3 IC301 E-7 IC601 E-10 • Semiconductor Location Note on Printed Wiring Board: • X : parts extracted from the component side. • b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) • Abbreviation CND : Canadian. EE : East European. FR : French. 9E : Country of origin is not shown. 1 6 MEGA BASS UNIT OFF ON 4 6 2 DC IN 3V BLK ORG RED WHT BLK ORG RED WHT M901 REEL/CAPSTAN MOTOR DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 2PCS, 3V MAIN BOARD AVLS NORM LIMIT J302 NORM CrO2/ METAL BATT RV301 VOLUME S302 (POWER) L R 4 5 3 2 1 6 PLAY BACK HEAD HP901 1-667-710- 11 (11) 1 5 9 10 19 18 15 27 28 36 30 25 L R 16 E,9E MODEL EXCEPT E,9E 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-EX170/EX172 5-3. SCHEMATIC DIAGRAM (EX170 MODEL) — 11 — — 12 — 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. • % : indicates tolerance. • C : panel designation. • U : B+ Line. • H : adjustment for repair. • Total current is measured with no cassette installed. • Power voltage is dc V and fed with regulated dc power supply from external power voltage jack. • 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. • Signal path. E : PB • Abbreviation CND : Canadian. EE : East European. FR : French. 9E : Country of origin is not shown. 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-EX170/EX172 1 2 A B C D E F G H 3 4 5 6 7 8 9 10 11 12 — 13 — — 14 — Ref. No. Location D150 H-3 IC301 F-7 IC331 F-4 IC601 E-10 • Semiconductor Location 5-4. PRINTED WIRING BOARD (EX172 MODEL) BLK ORG RED WHT DC IN 3V BLK ORG RED WHT M901 REEL/CAPSTAN MOTOR DRY BATTERY SIZE "AA" (IEC DESIGNATION R6) 2PCS, 3V MAIN BOARD AVLS NORM LIMIT J302 BATT RV301 VOLUME L R NORM CrO2/ METAL S302 (POWER) L R 4 5 3 2 1 1 6 1-667-711- 11 16 (11) 1 9 5 MEGA BASS UNIT RV352 LOW RV351 HIGH OFF ON ON OFF 7 6 8 5 4 3 9 1 2 S351 MEGA BASS S352 DOLBY NR PLAY BACK HEAD HP901 5 9 10 19 18 15 27 28 36 30 25 E,6E,9E MODEL EXCEPT E,6E,9E Note on Printed Wiring Board: • X : parts extracted from the component side. • b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) • Abbreviation CND : Canadian. EE : East European. FR : French. 6E : Central and South America. 9E : Country of origin is not shown. 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-EX170/EX172 — 15 — — 16 — 5-5. SCHEMATIC DIAGRAM (EX172 MODEL) 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. • % : indicates tolerance. • C : panel designation. • U : B+ Line. • H : adjustment for repair. • Total current is measured with no cassette installed. • Power voltage is dc V and fed with regulated dc power supply from external power voltage jack. • 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. • Signal path. E : PB • Abbreviation EE : East European model. FR : French model 6E : Central and South America. 9E : Country of origin is not shown. 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 — 17 — 5-6. IC BLOCK DIAGRAMS GND IREF 2 VREF 3 INB 4 OUTB 5 6 7 DCB DETB 1 V+ SW 13 VEXT 12 INA OUTA 8 DCA DETA BIAS Circuit Bch BLOCK Ach BLOCK Gm SUM (same Ach) + – Weight + – G1 G2 V/I 9 10 11 14 IC331 NJM2185V IC601 LB1979V 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 CURRENT DETECT OUTPUT PRE DRIVER MIX WAVEFORM DETECT CURRENT/MOTIVE LOGIC SOFT SW REFERENCE VOLTAGE FOR SPEED CONTROL MOTIVE POWER DETECT POWER SUPPLY BIAS REFERENCE VOLTAGE OSCILLATOR CIRCUIT SPEED DETECT FC GND FC RI OUT VSP IN+ VREF S/S COM OSC WB VCC NC U OUT V OUT W OUT P-GND VB UB GND 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 — 18 — 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. SECTION 6 EXPLODED VIEWS 6-1. CABINET SECTION • The mechanical parts with no reference number in the exploded views are not supplied. • Abbreviation CND : Canadian. EE : East European. FR : French. Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1 3-019-852-01 CABINET (REAR)(BLACK)(SILVER) (EX170:CND,AEP,FR,EE/EX172:AEP,EE,FR) 1 3-019-852-11 CABINET (REAR)(BLUE)(EX172:AEP,FR) 1 3-019-852-21 CABINET (REAR)(GREEN)(EX172:AEP,FR) 1 3-019-852-31 CABINET (REAR)(RED)(EX172:AEP,FR) 1 3-019-852-51 CABINET (REAR)(BLACK)(SILVER) (EX170:E,9E/EX172:E,6E,9E) 1 3-019-852-61 CABINET (REAR)(BLUE)(EX172:E,9E) 1 3-019-852-71 CABINET (REAR)(GREEN)(EX172:E,9E) 1 3-019-852-81 CABINET (REAR)(RED)(EX172:E,9E) 2 3-019-940-01 LID, BATTERY CASE(BLACK)(SILVER) 2 3-019-940-11 LID, BATTERY CASE(BLUE) (EX172:AEP,FR,E,9E) 2 3-019-940-21 LID, BATTERY CASE(GREEN) (EX172:AEP,FR,E,9E) 2 3-019-940-31 LID, BATTERY CASE(RED) (EX172:AEP,FR,E,9E) 3 3-019-850-01 CABINET (FRONT)(BLACK)(SILVER) (EX170:CND,AEP,FR,EE/EX172:AEP,EE,FR) 3 3-019-850-11 CABINET (FRONT)(BLUE)(EX172:AEP,FR) 3 3-019-850-21 CABINET (FRONT)(GREEN)(EX172:AEP,FR) 3 3-019-850-31 CABINET (FRONT)(RED)(EX172:AEP,FR) 3 3-019-850-51 CABINET (FRONT)(BLACK)(SILVER) (EX170:E,9E/EX172:E,6E,9E) 3 3-019-850-61 CABINET (FRONT)(BLUE)(EX172:E,9E) 3 3-019-850-71 CABINET (FRONT)(GREEN)(EX172:E,9E) 3 3-019-850-81 CABINET (FRONT)(RED)(EX172:E,9E) 4 3-019-939-01 SPRING (CASSETTE HOLDER) 5 3-019-949-01 SPRING (TORSION) 6 3-019-847-01 HOLDER, CASSETTE(BLACK)(EX170) 6 3-019-847-11 HOLDER, CASSETTE(BLUE) (EX170:CND,AEP,EE,E,9E) 7 9 8 15 16 6 5 4 10 11 12 3 MT-WMEX170-114 2 1 13 14 6 3-019-847-21 HOLDER, CASSETTE(GREEN) (EX170:CND,AEP,EE,E,9E) 6 3-019-847-31 HOLDER, CASSETTE(RED) (EX170:CND,AEP,EE,E,9E) 6 3-019-847-41 HOLDER, CASSETTE(SILVER) (EX170:CND,AEP,EE,E,9E) 6 3-019-848-01 HOLDER, CASSETTE(BLACK)(EX172) 6 3-019-848-11 HOLDER, CASSETTE(BLUE) (EX172:AEP,FR,E,9E) 6 3-019-848-21 HOLDER, CASSETTE(GREEN) (EX172:AEP,FR,E,9E) 6 3-019-848-31 HOLDER, CASSETTE(RED) (EX172:AEP,FR,E,9E) 6 3-019-848-41 HOLDER, CASSETTE(SILVER) (EX172:AEP,FR,E,9E) 7 3-019-947-01 BUTTON (ROTARY)(BLACK)(EX172) 7 3-019-947-11 BUTTON (ROTARY)(EXCEPT BLACK)(EX172) 8 3-019-945-01 BUTTON (MEGA BASS)(EX172) 8 3-019-853-01 KNOB (MEGA BASS)(EX170) 9 3-019-946-01 BUTTON (DOLBY)(EX172) 10 3-019-863-01 ACTUATOR (A)(EX170) 10 3-022-655-01 ACTUATOR (B)(EX172) 11 3-022-656-01 ACTUATOR (C)(EX172) 12 1-475-439-11 MEGA BASS UNIT (SWITCH) (EX170) 12 1-475-441-11 MEGA BASS UNIT (DOLBY) (EX172) 13 3-022-346-01 LENS 14 3-318-203-92 SCREW (B1.7X9), TAPPING 15 3-025-244-01 COVER(EX170) 15 3-025-245-01 COVER(EX172) 16 3-025-246-01 COVER(EX172) 6E : Central and South America. 9E : Country of origin is not shown. • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) ↑ ↑ Parts of Color Cabinet’s Color 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 — 19 — 6-2. MAIN BOARD SECTION 51 3-015-285-01 SCREW (M1.4),TOOTHED LOCK (WH) 52 A-3021-030-A MAIN BOARD, COMPLETE(EX170:E,9E) 52 A-3021-008-A MAIN BOARD, COMPLETE(EX170:CND,AEP,EE) 52 A-3021-040-A MAIN BOARD, COMPLETE(EX172:E,6E,9E) 52 A-3021-041-A MAIN BOARD, COMPLETE(EX172:FR) 52 A-3021-039-A MAIN BOARD, COMPLETE(EX172:AEP,EE) 52 A-3021-031-A MAIN BOARD, COMPLETE(EX170:FR) 54 55 56 57 MT-WMEX170-114 58 53 52 51 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 53 3-019-950-01 TERMINAL (+),BATTERY 54 3-019-944-01 BUTTON (STOP) 55 3-019-943-01 BUTTON (REW) 56 3-019-941-01 BUTTON (PLAY) 57 3-019-942-01 BUTTON (FF) 58 3-018-977-01 TERMINAL (-),BATTERY 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 — 20 — 6-3. MECHANISM SECTION-1 (MT-WMEX170-114) 104 103 105 106 102 101 M901 HP901 101 3-013-560-11 BELT 102 3-703-816-31 SCREW (M1.4), SPECIAL HEAD 103 3-019-776-01 GEAR (REEL-S) 104 3-703-816-73 SCREW (M1.4), SPECIAL HEAD 105 X-3369-749-1 PINCH LEVER (N) ASSY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 106 3-920-996-01 SPRING (PINCH N) M901 1-763-073-11 MOTOR HP901 1-500-517-11 HEAD, MAGNETIC (PLAYBACK) 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 — 21 — 6-4. MECHANISM SECTION-2 (MT-WMEX170-114) 155 158 154 159 160 161 162 163 164 165 166 167 152 151 153 157 156 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 151 3-921-797-01 WASHER 152 3-921-003-01 BEARING 153 3-938-628-01 SPRING (PLAY-CP) 154 3-019-773-01 GEAR (AS) 155 X-3374-598-1 CLUTCH ASSY (S) 156 3-022-093-01 SPRING (FR-S) 157 3-022-094-01 SPRING (STOP-S) 158 3-019-777-01 LEVER (OW-S), DETECTION 159 3-728-091-01 WASHER, STOPPER 160 3-019-778-01 SLEEVE (MS) 161 3-921-335-01 WASHER, LEVER 162 3-920-990-01 SPRING (UD), COMPRESSION 163 3-019-774-01 GEAR (BS) 164 X-3369-747-1 WHEEL ASSY (SP), CAPSTAN 165 3-019-775-01 GEAR (DS) 166 3-014-709-01 SPRING (FR LEVER OW) * 167 X-3374-601-1 CHASSIS ASSY (GL-OS) 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 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 • SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD... • Abbreviation CND : Canadian. EE : East European. FR : French. 6E : Central and South America. 9E : Country of origin is not shown. When indicating parts by reference number, please include the board name. Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks — 22 — SECTION 7 ELECTRICAL PARTS LIST A-3021-008-A MAIN BOARD, COMPLETE(EX170:CND,AEP,EE) ********************* A-3021-030-A MAIN BOARD, COMPLETE(EX170:E,9E) ********************* A-3021-031-A MAIN BOARD, COMPLETE(EX170:FR) ********************* A-3021-039-A MAIN BOARD, COMPLETE(EX172:AEP,EE) ********************* A-3021-040-A MAIN BOARD, COMPLETE(EX172:E,6E,9E) ********************* A-3021-041-A MAIN BOARD, COMPLETE(EX172:FR) ********************* 3-018-977-01 TERMINAL (–), BATTERY 3-019-950-01 TERMINAL (+), BATTERY < CAPACITOR > C101 1-163-005-11 CERAMIC CHIP 470PF 10% 50V (EX170) C101 1-163-007-11 CERAMIC CHIP 680PF 10% 50V (EX172) C103 1-163-017-00 CERAMIC CHIP 0.0047uF 5% 50V C104 1-126-157-11 ELECT 10uF 20% 16V C105 1-164-005-11 CERAMIC CHIP 0.47uF 25V (EX170) C106 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX170) C106 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V (EX172) C107 1-164-346-11 CERAMIC CHIP 1uF 16V C108 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C131 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C132 1-164-505-11 CERAMIC CHIP 2.2uF 16V (EX172) C133 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V (EX172) C134 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C201 1-163-005-11 CERAMIC CHIP 470PF 10% 50V (EX170) C201 1-163-007-11 CERAMIC CHIP 680PF 10% 50V (EX172) C203 1-163-017-00 CERAMIC CHIP 0.0047uF 5% 50V C204 1-126-157-11 ELECT 10uF 20% 16V C205 1-164-005-11 CERAMIC CHIP 0.47uF 25V (EX170) C206 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX170) C206 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V (EX172) C207 1-164-346-11 CERAMIC CHIP 1uF 16V C208 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C231 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C232 1-164-505-11 CERAMIC CHIP 2.2uF 16V (EX172) C233 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V (EX172) C234 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C301 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C302 1-163-038-91 CERAMIC CHIP 0.1uF 25V C303 1-126-153-11 ELECT 22uF 20% 6.3V C304 1-164-222-11 CERAMIC CHIP 0.22uF 25V C305 1-126-176-11 ELECT 220uF 20% 10V C306 1-164-346-11 CERAMIC CHIP 1uF 16V C308 1-126-162-11 ELECT 3.3uF 20% 50V C309 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V (EX170) C309 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V (EX172) C310 1-164-346-11 CERAMIC CHIP 1uF 16V C311 1-164-005-11 CERAMIC CHIP 0.47uF 25V (EX170) C311 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C312 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V (EX170) C312 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V (EX172) C314 1-164-346-11 CERAMIC CHIP 1uF 16V C315 1-126-153-11 ELECT 22uF 20% 6.3V C316 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX170) C317 1-163-117-00 CERAMIC CHIP 100PF 5% 50V (EX170) C317 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX172) C318 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C319 1-163-117-00 CERAMIC CHIP 100PF 5% 50V (EX170) C319 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX172) C322 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX170) C322 1-163-117-00 CERAMIC CHIP 100PF 5% 50V (EX172) 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 — 23 — C323 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C324 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX170) C324 1-163-038-91 CERAMIC CHIP 0.1uF 25V (EX172) C331 1-164-346-11 CERAMIC CHIP 1uF 16V (EX172) C332 1-164-005-11 CERAMIC CHIP 0.47uF 25V (EX172) C333 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V (EX172) C334 1-126-157-11 ELECT 10uF 20% 16V (EX172) C601 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V C602 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V C603 1-126-176-11 ELECT 220uF 20% 10V C605 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V C606 1-164-344-11 CERAMIC CHIP 0.068uF 10% 25V C607 1-164-489-11 CERAMIC CHIP 0.22uF 10% 16V C608 1-163-809-11 CERAMIC CHIP 0.047uF 10% 25V C609 1-164-505-11 CERAMIC CHIP 2.2uF 16V C610 1-107-823-11 CERAMIC CHIP 0.47uF 10% 16V < CONNECTOR > L CN301 1-750-346-21 CONNECTOR, FFC/EPC (ZIF) 6P L CN302 1-750-346-21 CONNECTOR, FFC/EPC (ZIF) 6P (EX170) * CN302 1-784-527-11 CONNECTOR, FPC (ZIF) 9P (EX172) < DIODE > D150 8-719-067-62 DIODE LNJ210C6AOSO < IC > IC301 8-759-285-29 IC LA4582CM (EX170) IC301 8-759-332-69 IC LA4585M-TLM (EX172) IC331 8-759-488-80 IC NJM2185AV-TE2 (EX172) IC601 8-759-447-73 IC LB1979V-TLM < JACK > J301 1-750-061-11 JACK,DC(POLARITY UNIFIED TYPE)(DC IN 3V) (E,6E,9E) J302 1-565-287-11 JACK(PHONES) < JUMPER RESISTOR > JR10 1-216-295-91 SHORT 0 (EXCEPT E,6E,9E) JR201 1-216-295-91 SHORT 0 JR202 1-216-295-91 SHORT 0 (EX172) JR301 1-216-296-91 SHORT 0 JR302 1-216-296-91 SHORT 0 JR303 1-216-296-91 SHORT 0 JR304 1-216-296-91 SHORT 0 JR305 1-216-296-91 SHORT 0 JR306 1-216-296-91 SHORT 0 JR307 1-216-296-91 SHORT 0 (EX172) JR308 1-216-296-91 SHORT 0 JR309 1-216-296-91 SHORT 0 JR310 1-216-296-91 SHORT 0 JR311 1-216-296-91 SHORT 0 JR312 1-216-296-91 SHORT 0 (EX170) JR313 1-216-296-91 SHORT 0 JR314 1-216-296-91 SHORT 0 JR315 1-216-296-91 SHORT 0 JR316 1-216-296-91 SHORT 0 (EX172) JR317 1-216-296-91 SHORT 0 (EX172) JR318 1-216-296-91 SHORT 0 (EX172) JR319 1-216-296-91 SHORT 0 (EX172) JR320 1-216-296-91 SHORT 0 (EX172) JR321 1-216-296-91 SHORT 0 (EX172) JR322 1-216-296-91 SHORT 0 (EX172) JR323 1-216-296-91 SHORT 0 (EX172) JR324 1-216-296-91 SHORT 0 (EX172) < RESISTOR > R101 1-216-089-91 RES,CHIP 47K 5% 1/10W R103 1-216-079-00 METAL CHIP 18K 5% 1/10W R104 1-216-075-00 METAL CHIP 12K 5% 1/10W R105 1-216-117-00 METAL CHIP 680K 5% 1/10W R106 1-216-043-91 RES,CHIP 560 5% 1/10W (EX170) R106 1-216-046-00 METAL CHIP 750 5% 1/10W (EX172) R107 1-216-003-11 RES,CHIP 12 5% 1/10W (EX170:E,9E) R107 1-216-295-91 SHORT 0 (CND,AEP,EE) R107 1-216-311-00 METAL CHIP 6.8 5% 1/10W (EX172:E,6E,9E) R107 1-216-001-00 RES,CHIP 10 5% 1/10W (FR) R109 1-216-095-00 METAL CHIP 82K 5% 1/10W (E,6E,9E) R109 1-216-107-00 METAL CHIP 270K 5% 1/10W (CND,AEP,EE,FR) R110 1-216-049-91 RES,CHIP 1K 5% 1/10W R111 1-216-174-00 RES,CHIP 100 5% 1/8W R150 1-216-053-00 METAL CHIP 1.5K 5% 1/10W R201 1-216-089-91 RES,CHIP 47K 5% 1/10W R203 1-216-079-00 METAL CHIP 18K 5% 1/10W R204 1-216-075-00 METAL CHIP 12K 5% 1/10W R205 1-216-117-00 METAL CHIP 680K 5% 1/10W R206 1-216-043-91 RES,CHIP 560 5% 1/10W (EX170) R206 1-216-046-00 METAL CHIP 750 5% 1/10W (EX172) R207 1-216-003-11 RES,CHIP 12 5% 1/10W (EX170:E,9E) R207 1-216-295-91 SHORT 0 (CND,AEP,EE) R207 1-216-311-00 METAL CHIP 6.8 5% 1/10W (EX172:E,6E,9E) R207 1-216-001-00 RES,CHIP 10 5% 1/10W (FR) R209 1-216-095-00 METAL CHIP 82K 5% 1/10W (E,6E,9E) R209 1-216-107-00 METAL CHIP 270K 5% 1/10W (CND,AEP,EE,FR) R210 1-216-049-91 RES,CHIP 1K 5% 1/10W R211 1-216-025-91 RES,CHIP 100 5% 1/10W R301 1-216-049-91 RES,CHIP 1K 5% 1/10W R305 1-216-081-00 METAL CHIP 22K 5% 1/10W 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 — 24 — R306 1-216-077-00 METAL CHIP 15K 5% 1/10W (EX170) R306 1-216-057-00 METAL CHIP 2.2K 5% 1/10W (EX172) R309 1-216-113-00 METAL CHIP 470K 5% 1/10W R324 1-216-025-91 RES,CHIP 100 5% 1/10W (EX170) R324 1-216-298-00 METAL CHIP 2.2 5% 1/10W (EX172) R331 1-216-001-00 METAL CHIP 10 5% 1/10W (EX172) R332 1-216-081-00 METAL CHIP 22K 5% 1/10W (EX172) R333 1-216-688-11 METAL CHIP 36K 0.5% 1/10W (EX172) R601 1-216-121-91 RES,CHIP 1M 5% 1/10W R602 1-216-121-91 RES,CHIP 1M 5% 1/10W R603 1-216-121-91 RES,CHIP 1M 5% 1/10W R604 1-216-073-00 METAL CHIP 10K 5% 1/10W R605 1-216-049-91 RES,CHIP 1K 5% 1/10W R606 1-216-097-91 RES,CHIP 100K 5% 1/10W R607 1-216-073-00 METAL CHIP 10K 5% 1/10W R608 1-216-049-91 RES,CHIP 1K 5% 1/10W < VARIABLE RESISTOR > RV301 1-225-544-11 RES, VAR, CARBON 10K/10K(VOLUME) RV601 1-238-663-11 RES, ADJ, CARBON 4.7K < SWITCH > S302 1-762-917-11 SWITCH, DETECTION (SMALL TYPE)(POWER) S303 1-692-298-11 SWITCH, SLIDE(TAPE SELECTOR) S305 1-692-298-11 SWITCH, SLIDE(AVLS) < THERMISTOR > TH601 1-810-794-11 THERMISTOR, POSITIVE ************************************************************ MISCELLANEOUS ************* 11 1-475-439-11 MEGA BASS UNIT (SWITCH) (EX170) 11 1-475-441-11 MEGA BASS UNIT (DOLBY) (EX172) HP901 1-500-517-11 HEAD, MAGNETIC (PLAYBACK) M901 1-763-073-11 MOTOR ************************************************************ ACCESSORIES & PACKING MATERIALS ******************************* 1-505-521-11 HEADPHONES (MDR-023)(EXCEPT E,6E,9E) 3-022-755-01 CLIP, BELT 3-861-488-11 MANUAL, INSTRUCTION(ENGLISH/FRENCH) (CND,EE) 3-861-488-21 MANUAL, INSTRUCTION (ENGLISH/GERMAN/SPANISH/DUTCH/FRENCH /ITALIAN/PORTUGUESE/FINNISH)(AEP) 3-861-488-31 MANUAL, INSTRUCTION(FRENCH)(AEP,FR) 3-861-488-41 MANUAL, INSTRUCTION (GERMAN/POLISH/RUSSIAN/HUNGARIAN /BULGARIAN/CZECH/GREEK/TURKISH)(EE) 3-861-488-51 MANUAL, INSTRUCTION (ENGLISH/CHINESE/KOREAN)(E) 3-861-488-61 MANUAL, INSTRUCTION (SPANISH/PORTUGUESE)(6E) 3-861-488-71 MANUAL, INSTRUCTION (ENGLISH/CHINESE/KOREAN)(9E) 8-953-224-90 HEADPHONE MDR-E802LP//K SET(E,6E,9E) MAIN WM-EX170/EX172 Sony Corporation Personal A&V Products Company 98B1683-1 Printed in Japan © 1998.2 Published by Quality Engineering Dept. (Shibaura) 9-923-335-11 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