SERVICE MANUAL CASSETTE PLAYER E Model SPECIFICATIONS WM-EX527 Ver 1.0 2003.01 9-874-279-01 Sony Corporation 2003A0500-1 Personal Audio Company C 2003.01 Published by Sony Engineering Corporation Model Name Using Similar Mechanism WM-EX526 Tape Transport Mechanism Type MT-WMEX505-162 Battery life* (Approx. hours) Sony alkaline LR6 (SG)** Tape playback 35 * Measured value by the standard of JEITA(Japan Electronics and Information Technology Industries Association) (Using a Sony HF series cassette tape). **When using a Sony LR6(SG) “STAMINA” alkaline dry battery(produced in Japan). Note •The battery life may be shorter depending on the operating condition, the surrounding temperature and battery type. • Frequency response Playback: 30 - 18 000 Hz • Output Headphones (i jack) Load impedance 8 – 300 � • Power requirements 1.5 V One R6 (size AA) battery • Dimensions (w/h/d) Approx. 78.1 x 108.0 x 28.1 mm (excluding projecting parts and controls) • Mass Approx. 161 g (main unit only) • Supplied accessories Stereo headphones or earphones with remote control (1) Design and specifications are subject to change without notice. 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 WM-EX527 TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 5 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 6 3-2. Cassette Lid Assy ............................................................ 6 3-3. Case Block Assy.............................................................. 7 3-4. Reel Ornament Block Assy ............................................. 7 3-5. Battery Holder ................................................................. 8 3-6. Belt (F2) .......................................................................... 8 3-7. MAIN Board ................................................................... 9 3-8. Motor (Capstan/Reel) (M901) ........................................ 10 3-9. Holder (FS) Section ........................................................ 10 3-10. Pinch Lever (N) Assy, Pinch Lever (R) Assy ................. 11 3-11. Magnetic Head (Playback) (HP901) .............................. 11 4. MECHANICAL ADJUSTMENTS ....................... 11 5. ELECTRICAL ADJUSTMENTS ......................... 11 6. DIAGRAMS 6-1. Block Diagram ................................................................ 12 6-2. Note for Printed Wiring Board and Schematic Diagram ......................................................... 13 6-3. Printed Wiring Board ...................................................... 14 6-4. Schematic Diagram ......................................................... 15 6-5. IC Pin Function Description ........................................... 16 7. EXPLODED VIEWS 7-1. Case Section .................................................................... 18 7-2. Mechanism Deck Section (MT-WMEX505-162) .......... 19 8. ELECTRICAL PARTS LIST ............................... 20 Flexible Circuit Board Repairing • Keep the temperature of the soldering iron around 270 ˚C dur- ing 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 dam- aged by heat. 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 WM-EX527 SECTION 1 SERVICING NOTES This set detects the rotation of the idler gear (A) (side S) using the PH701 (photo reflector). The PH701 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 (M901) cannot be controlled, causing malfunction. Further, the DIRECTION switch (S701) is also mounted on the MAIN board, and with the board removed, the mechanism posi- tion 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 (M901) and the plunger (PM901) using jumper wires. These can be connected easily with the use of the extension tool (Part No. 1-769- 143-11) (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 TP36 (PHOTO IN) and the TP46 (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 (S701) are set to the center position. If not, set the preset state as follow. (2) Move the DIRECTION switch (S701) 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 DI- RECTION switch (S701) according to this timing and set to the center position. 3. FF, REW modes (1) Check that the preset state is set. (2) Input the square wave or sine wave to the TP36 (PHOTO IN) and the TP46 (GND). (3) Press the x button (S702) to set the STOP mode. (4) Press the [FF] button (S704) or the [REW] button (S705). 4. PLAY mode (1) Check that the preset state is set. (2) Input the square wave or sine wave to the TP36 (PHOTO IN) and the TP46 (GND). (3) Press the x button (S702) to set the STOP mode. (4) Press the bB REPEAT button (S703) will move the slider (NR) once towards the side R and then to the side F. Move the DIRECTION switch (S701) according to this timing will set the PLAY mode (side F). Press the bB REPEAT button (S703) another time and move the DIRECTION switch (S701) according to the movement of the slider (NR) will set the PLAY (R mode). Note 1: If the above fails, perform from preset again. Note 2: Use the bB REPEAT (S703), x (S702), [FF] (S704), and [REW] (S705) buttons on the remote controller as much as pos- sible. 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 (S701) can be determined from the beep sound. + – square wave (sine wave) 10 Hz, – 3.5 dB – MAIN Board (Side B) – TAPE DETECT (S901-1) ATS (S901-2) connect to the plunger (PM901) battery terminal 3 battery terminal # connect to the motor (M901) PH701 SOUND (S706) S701 DIRECTION FWDTCENTERtREV TP46 (GND) FUNCTION (S708) x (S702) TP36 (PHOTO IN) REW (S705) YREPEAT (S703) FF (S704) AF oscillator 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 WM-EX527 SLIDER (NRA) Rotation system Rotation system during PLAY Rotation system during FF Rotation system during REW slider (NRA) side F side R center insert flywheel (N) insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear gear (REEL) (T side) motor pulley idler (A) gear (T side) gear (FR) (FF: left side) insert flywheel (N) insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear gear (REEL) (T side) motor pulley idler (A) gear (T side) gear (NR) (FWD: left side REW: right side) idler (B) gear idler (A) gear (S side) gear (REEL) (S side) insert flywheel (N) insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear motor pulley gear (FR) (REW: right side) idler (A) gear (S side) gear (REEL) (S side) 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 WM-EX527 B VOL REW FF Y•x** OPEN OPEN Y•REPEAT** x FF (AMS• BL SKIP/s) REW (AMS•AVLS) FUNCTION SOUND VOL* BATT HOLD HOLD A Plug in firmly. * There is a tactile dot beside VOL on the main unit to show the direction to turn up the volume. ** The button has a tactile dot. SECTION 2 GENERAL This section is extracted from instruction manual. 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-EX527 6 • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-2. CASSETTE LID ASSY 3-4. REEL ORNAMENT BLOCK ASSY (Page 7) 3-2. CASSETTE LID ASSY (Page 6) 3-3. CASE BLOCK ASSY (Page 7) 3-9. HOLDER (FS) SECTION (Page 10) 3-10. PINCH LEVER (N) ASSY, PINCH LEVER (R) ASSY (Page 11) 3-11. MAGNETIC HEAD (PLAYBACK) (HP901) (Page 11) 3-8. MOTOR (CAPSTAN/REEL) (M901) (Page 10) 3-5. BATTERY HOLDER (Page 8) 3-7. MAIN BOARD (Page 9) 3-6. BELT (F2) (Page 8) Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed. SET 4 cassette lid assy 2 two screws (M1.4) 2 screw (M1.4) 1 Open the cassette lid assy. 3 boss 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-EX527 7 3-3. CASE BLOCK ASSY 3-4. REEL ORNAMENT BLOCK ASSY 1 three screws (M1.4) 1 two screws (M1.4) 2 case block assy 1 two claws 2 reel ornament block assy 1 claw knob (hold) S707 On installation reel ornament, adjust the S707 and knob (hold). 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-EX527 8 3-5. BATTERY HOLDER 3-6. BELT (F2) 2 two screws 3 battery holder 1 Break the soldering of battery terminal (+). 1 Break the soldering of battery terminal (–). 1 belt (F2) (See page 4) 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-EX527 9 3-7. MAIN BOARD NOTE FOR INSTALLATION • MAIN BOARD 2 screw (M1.4) flexible board 1 Remove six solders of flexible board. 1 Remove two solders of plunger solenoid. 1 Remove four solders of motor. 1 Remove four solders of leaf switch. 3 main board slider (NRA) S701 main board On installation main board, adjust the S701 and slider (NRA). 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-EX527 10 3-8. MOTOR (CAPSTAN/REEL) (M901) 3-9. HOLDER (FS) SECTION 1 two screws (M1.4) 2 motor (capstan/reel) (M901) 1 two screws (IB lock) 2 boss 3 lock lever (B) (/M) 7 bracket (cassette) assy (/M) 5 lock lever (S) (/M) 4 screw (M1.4) 6 boss 9 Remove the holder (FS) section to direction of the arrow. 8 Remove six solders of flexible board. 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 11 3-10. PINCH LEVER (N) ASSY, PINCH LEVER (R) ASSY 1 claw 2 Remove the pinch lever (R) assy to direction of the arrow. 4 Remove the pinch lever (N) assy to direction of the arrow. 3 claw 3-11. MAGNETIC HEAD (PLAYBACK) (HP901) 1 claw 2 Remove the magnetic head (HP901) to 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-EX527 11 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. (Do not bring the head demagnetizer close to the erase head.) 3. The adjustments should be performed with the rated power supply voltage (1.3 V) unless otherwise noted. TORQUE MEASUREMENT Mode Torque Meter Meter Reading 1.57 – 2.45 mN•m FWD CQ-102C (16 – 25 g•cm) (0.23 – 0.34 oz•inch) FWD 0.049 – 0.147 mN•m Back Tension CQ-102C (0.5 – 1.5 g•cm) (0.007 – 0.02 oz•inch) 1.57 – 2.45 mN•m REV CQ-102RC (16 – 25 g•cm) (0.23 – 0.34 oz•inch) REV 0.049 – 0.147 mN•m Back Tension CQ-102RC (0.5 – 1.5 g•cm) (0.007 – 0.02 oz•inch) more than 4.90 mN•m FF, REW CQ-201B (more than 50 g•cm) (more than 0.7 oz•inch) SECTION 4 MECHANICAL ADJUSTMENTS SECTION 5 ELECTRICAL ADJUSTMENTS TAPE SPEED ADJUSTMENT Setting: PRECAUTION 1. Specified voltage : 1.3 V (DC) 2. Switch setting SOUND (NORM/MB/GRV): NORM (normal) AVLS : OFF BL SKIP : OFF MODE : s VOLUME : MAX HOLD : OFF TEST TAPE Procedure: 1. Playback WS-48A (tape center) in the FWD state. 2. Adjust RV601 so that the frequency counter reading becomes 3,000 Hz. Specificated Value: 2,970 to 3,030 Hz 3. Check that deflection of the frequency counter reading between the beginning and the end of tape is within 1.5% (apporox. 45 Hz). 4. 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: Type Signal Used for WS-48A 3 kHz, 0 dB Tape Speed Adjustment + – set Test tape WS-48A (3 kHz, 0 dB) frequency counter 16 Ω i jack (J301) RV601 – MAIN Board (Side B) – www. xiaoyu163. com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com WM-EX527 12 12 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM + – PREAMP AMS AGC DET COMPARATOR IC704 BEEP V/I EQ METAL CONTROL SPEED CONTROL DIRECTION CONTROL PHOTO REFLECTOR SWITCH & BUFFER Q702 PLUNGER DRIVE Q701 AVLS CONTROL SWITCH Q304 MEGA BASS/GROOVE SWITCHING Q303 RIPPLE FILTER Q301 RESET SIGNAL GENERATOR IC703 ROTATION DETECT SENSOR PH701 CAPSTAN/REEL MOTOR DRIVE IC601 SYSTEM CONTROLLER IC701 M901 (CAPSTAN/REEL) HP901 (PLAYBACK) AUDIO MASTER AMP IC301 SIGNAL PATH : PLAYBACK MOTOR DRIVE CIRCUIT SWITCH & LOGIC CIRCUIT BIAS REFERENCE VOLTAGE OSC CIRCUIT DRY BATTERY SIZE AA (IEC DESIGNATION R6) 1PC. 1.5V BATT B+ DDC B+ BATT B+ X701 4MHz THP601 TAPE SPEED RV601 START VREF IN+ COMPARATOR VSP OUT VCC DATA REMO GND BATT B+ BATT B+ BASE PW OUT-L PW OUT-R PW OUT-C POWER AMP POWER AMP POWER AMP PW NF-L BASS BOOST AMP PW IN-L PW IN-C BST OUT VOL RV301-1 HOLD S707 J301 S901-2 (ATS) PRE OUT-L MTL DRV-L FWD IN-L REV IN-L L-CH R-CH FWD L-CH R-CH REV R-CH R-CH R-CH R-CH R-CH R-CH R-CH S701 (DIRECTION) OSC OSC IN MOTOR DIR AMS OUT F/R SW M/N SW 25 8 7 5 DR 6 10 9 11 W 3 V 1 U W V U 19 5 X2 26 X1 27 34 LED BATT 31 18 VCC 19 RF OUT 17 20 22 21 29 EQ-L 30 40 BST SW 43 AGC IN 35 BEEP 39 28 32 33 AMS IN 12 7 8 46 44 F/R CTL 16 TAPE SW 13 F/R SW 3 AVLS CTL 18 GRV/MB CTL 19 AMS IN 4 BST CTL 20 SPEED CTL 35 MOTOR CTL 33 BEEP 15 MT SW 41 MUTE 36 PW SW 42 AMP CTL 11 RMUM 14 R DATA OUT 30 KEY IN 2 1 5 S901-1 (TAPE DETECT) + + + FWD CENTER REV OFF HOLD D703 BATT PHOTO IN 8 PHOTO CTL 10 PM CTL PM901 (PLUNGER) 38 DDC B+ BATT DET 1 DDC B+ RESET 12 WAKE UP LED BL SKIP 40 D706 BL SKIP/ LED AVLS 39 D705 AVLS S702 – 706, 708 R-ch is omitted due to same as L-ch. DC/DC CONVERTER D702, IC702, L701 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-EX527 13 13 6-2. NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM Note on Printed Wiring Board: • X : parts extracted from the component side. • Y : parts extracted from the conductor side. • z : Through hole. • f : internal component. • : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated. 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. • A : B+ Line. • H : adjustment for repair. • Total current is measured with no cassette installed. • 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 in playback mode. no mark : PLAYBACK • 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 : PLAYBACK 3 Vp-p 10 µs 23.2 mVp-p 1.7 ms 2.1 Vp-p 250 ns 23.2 mVp-p 1.7 ms • Waveforms 1 IC702 4 (LX) 2 IC701 5 (OSC IN) 3 IC701 wj (X1) 4 IC601 5 (OSC) 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-EX527 14 14 C202 C305 1 3 5 4 C708 C102 R712 R212 R211 R717 R111 R112 C711 R726 D711 IC703 IC702 IC301 D710 A K A K C608 C606 C307 C308 C312 R721 R734 R737 R725 R723 R736 R722 R735 R720 R733 R714 R739 R213 R113 R307 C703 C207 C304 C107 R732 R731 C601 R601 R724 R603 R604 R623 R624 R622 R701 R703 R702 C310 + C201 + C101 + C301 + C702 + C701 + CB301 24 13 37 36 25 1 12 48 IC701 11 1 23 22 12 34 44 33 C303 + Q304 Q301 D702 A K THP601 S701 (DIRECTION) C314 + C313 + C306 + C322 + R302 R707 R605 R705 R704 R711 R727 R306 R114 R214 R205 R107 R206 R106 R305 R304 R303 R108 R207 R602 C607 C605 C323 C321 C233 C133 C709 C320 C203 C302 C104 C204 C319 C209 R715 R708 R738 R308 JC201 JC101 R718 R750 R728 R710 R706 R713 R740 R105 R208 FB101 FB201 R203 R202 R103 R104 R204 R201 R102 R101 C603 C604 C602 C311 C109 C108 C103 C316 C309 C208 IC704 IC601 D709 Q303 D701 A K RV601 1 10 W COM U V 20 11 X701 + Q702 B C E Q701 B C E 2B E 1C 2C 1C B C E S707 HOLD HOLD OFF RV301 VOL –2 –1 J301 MAIN BOARD (SIDE A) MAIN BOARD (SIDE B) 1 3 5 4 L701 1-676-381- (11) 11 1-676-381- (11) 11 FWD CENTER REW B E C S704 FF AMS BL SKIP/ BL SKIP/ S705 D706 S708 FUNCTION S706 SOUND D705 AVLS S702 D703 BATT TP36 (PHOTO IN) 1 3 5 4 TP46 (GND) (CHASSIS) DRY BATTERY SIZE AA (IEC DESIGNATION R6) 1PC.1.5V PM901 (PLUNGER) S901-1 (TAPE DETECT) S901-2 (ATS) BP701 K K K K A M901 CAPSTAN/ REEL PH701 1 2 3 4 5 6 1 2 3 4 5 6 REW L-CH HP901 (PLAYBACK) L-CH R-CH R-CH FWD 1 A 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 B C D E F G H I J K L GND REMO DATA VCC REPEAT S703 REW AMS AVLS JC702 6-3. PRINTED WIRING BOARD D701 E-16 D702 I-8 D703 H-13 D705 F-12 D706 E-13 D709 C-16 D710 C-1 D711 C-1 IC301 C-6 IC601 J-13 IC701 F-4 IC702 H-8 IC703 D-2 IC704 H-11 PH701 I-4 Q301 B-6 Q303 C-15 Q304 C-3 Q701 G-4 Q702 J-4 • Semiconductor Location Ref. No. Location 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-EX527 15 15 6-4. SCHEMATIC DIAGRAM • See page 13 for Waveforms. • See page 16 for IC Block Diagrams. 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-EX527 16 16 1 2 3 5 4 CHIP ENABLE SLOW START PHASE COMP VLX LIMITER PWM CONTROL OSC 50/100/180kHz + – NC VOUT CE VDD VSS LX VREF BUFFER ERROR AMP V 1 PW 2 W 3 GND 4 OSC 5 DR 6 VREF 7 START 8 VSP 9 IN+ 10 PV 20 U 19 PU 18 GND 17 VCC 16 FC 15 TC1 14 TC2 13 R1 12 OUT 11 MOTIVE CONTROL CIRCUIT MOTIVE/ OSC MOTIVE LOGIC SOFT SWITCH PRE DRIVER INVERTER BIAS REFERENCE VOLTAGE SPEED CONTROL CURRENT CONTROL OUTPUT BIAS + – PRE A PRE B MIX PW B PW A PW C BST MT TC BASE RF IN PW GND OUT B OUT C OUT A VCC RF OUT VREF OUT BST NF BST OUT PW IN C LPF EQ A PW NF A PW IN A PW IN B PW NF B 3 IN A-R 5 PRE NF-A 6 PRE OUT A 7 MTL DRV A 8 MTL DRV B 9 PRE OUT B 10 PRE NF-B 11 AMS IN 12 IN B-R 4 IN B-F 2 IN A-F 1 21 20 19 18 17 GND 16 AMS DET 15 AMS MIX 14 AMS SW 13 22 23 24 38 C-AMP SW 37 PW SW 42 MT SW 41 F/R SW 44 BST SW 43 M/N SW 46 PRE GND 47 VREF IN 48 PRE SW 45 AMS OUT 40 BEEP 39 26 27 28 29 30 31 32 33 34 DET 36 AGC IN 35 + – + – + – + – + – + – EQ B 25 RIPPLE FILTER AGC DET BEEP VREF SWITCH COMPARATOR MTL DRV • IC Block Diagrams IC301 TA2123AF (EL) IC601 MM1279XVBE IC702 XC6371C251PL 6-5. IC PIN FUNCTION DESCRIPTION • IC701 uPD789166GB-510-8ES (SYSTEM CONTROLLER) Pin No. Pin Name I/O Description 1 BATT DET I Battery voltage detection signal input (A/D input) 2 KEY IN I Key input terminal (A/D input) 3 F/R SW I Tape direction switch input terminal “L”: forward position 4 AMS IN I Whether a music is present or not from the audio master amp is detected at auto music sensor “L”: music is present 5 OSC IN I Motor restart control signal input from the capstan/reel motor drive “H”: FF/REW motor rotation status 6 NC I Not used 7 DOLBY KEY CTL I Dolby is present or not control signal input terminal “H”: Dolby is present (fixed at “L” in this set) 8 PHOTO IN I Rotation detect signal input of the capstan/reel motor 9 AVSS — Ground terminal (for A/D converter) 10 PHOTO CTL O Control signal output to the capstan/reel motor rotation detect circuit “L”: rotation detect circuit on 11 AMP CTL O Also, this is used as control signal output for power on/off to the audio master amplifier, or power supply output for the Dolby NR amplifier “H”: power on Dolby NR amplifier: Not used in this set 12 WAKE UP I 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” 13 TAPE SW I Cassette tape detect switch input terminal “L”: cassette detected 14 RMUM I Connection detection signal input of the remote commander 15 BEEP O Beep sound signal output to the audio master amplifier 16 F/R CTL O Forward/reverse selection signal output to the audio master amplifier “L”: forward direction, “H”: reverse direction 17 VDD1 — Power supply terminal (+2.5V) 18 AVLS CTL O AVLS (Automatic Volume Limiter System) on/off control signal output “H”: AVLS on 19 GRV/MB CTL O Emphasizing sound control signal output to the audio master amplifier “L”: MB (mega bass), “H”: normal/GRV (groove) 20 BST CTL O Bass boost control signal output to the audio master amplifier “H”: bass boost on 21 LED DOLBY O LED drive signal output of the Dolby NR indicator “L”: LED on Not used 22 IC0 — Not used 23 XT2 O Sub clock output terminal Not used 24 XT1 I Sub clock input terminal Not used 25 RESET I System reset signal input from the reset signal generator “L”: reset “L” is input for several 100 msec after power on, then it changes to “H” 26 X2 O System clock output terminal (4 MHz) 27 X1 I System clock input terminal (4 MHz) 28 VSS0 — Ground terminal 29 VDD0 — Power supply terminal (+2.5V) 30 R DATA OUT O Communication serial data output to the remote commander 31 LED BATT O LED drive signal output of the BATT indicator “H”: LED on 32 DOLBY CTL O Dolby on/off control signal output to the Dolby NR amplifier “L”: Dolby NR on Not used 33 MOTOR CTL O Motor start control signal output to the capstan/reel motor drive “H”: motor on 34 MOTOR DIR O Motor direction control signal output to the capstan/reel motor drive “L”: counterclockwise, “H”: clockwise 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 WM-EX527 Pin No. Pin Name I/O Description 35 SPEED CTL O Motor speed control signal output to the capstan/reel motor drive “L”: normal speed, “H”: 1/2 speed 36 MUTE O Power on muting control signal output to the audio master amplifier “L”: muting on 37 VSS1 — Ground terminal 38 PM CTL O Plunger drive signal output “L”: plunger on 39 LED AVLS O LED drive signal output of the AVLS indicator “L”: LED on 40 LED BL SKIP O LED drive signal output of the BL SKIP/s indicator “L”: LED on 41, 42 NC — Not used 43 AVDD — Power supply terminal (+2.5V) (for A/D converter) 44 AVREF I Reference voltage input terminal (+2.5V) (for A/D converter) 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 WM-EX527 7-1. CASE SECTION SECTION 7 EXPLODED VIEWS • 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 num- ber in the exploded views are not supplied. • Accessories are given in the last of the elec- trical parts list. 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 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1 A-3329-792-A CASE BLOCK ASSY (SILVER) 1 A-3329-793-A CASE BLOCK ASSY (BLUE) 2 3-225-873-29 SCREW (M1.4) 3 3-042-001-04 HOLDER, BATTERY 4 3-042-003-01 SPRING 5 3-042-002-01 LID, BATTERY CASE 6 3-345-648-95 SCREW (M1.4), TOOTHED LOCK * 8 A-3021-287-A MAIN BOARD, COMPLETE 9 3-939-590-05 SCREW (IB LOCK) 10 3-038-054-01 LEVER (B) (/M), LOCK 11 3-375-114-81 SCREW 12 X-3377-717-2 BRACKET ASSY (/M) 14 3-237-997-21 COVER, MD 15 3-225-996-09 SCREW (M1.4) (EG), PRECISION PAN 16 X-3383-061-1 LID ASSY, CASSETTE (S) (SILVER) 16 X-3383-062-1 LID ASSY, CASSETTE (L) (BLUE) 17 X-3377-719-1 BRACKET (CASSETTE) ASSY (/M) 18 3-365-630-41 SCREW (M1.4) 19 3-042-006-41 ORNAMENT, REEL (for SILVER) 19 3-042-006-51 ORNAMENT, REEL (for BLUE) 20 3-042-007-41 KNOB (OPEN) (for SILVER) 20 3-042-007-51 KNOB (OPEN) (for BLUE) 21 3-042-008-01 SPRING, TENSION 22 3-042-009-41 KNOB (HOLD) (for SILVER) 22 3-042-009-51 KNOB (HOLD) (for BLUE) 23 3-042-004-01 TERMINAL (+), BATTERY 24 3-042-005-01 TERMINAL (-), BATTERY 25 3-224-837-01 SHEET (ATS) 26 3-044-951-01 SHEET (A) S901 1-771-888-11 SWITCH, LEAF (TAPE DETECT, ATS) 14 10 9 6 2 8 9 12 9 18 20 21 19 24 25 17 S901 MT-WMEX505-162 26 22 2 2 16 1 3 23 11 5 4 15 15 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 WM-EX527 7-2. MECHANISM DECK SECTION (MT-WMEX505-162) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 101 X-3378-354-5 HOLDER (FS) ASSY 102 X-3377-363-1 LEVER (R) ASSY, PINCH 103 3-046-789-01 SPRING (HDA) 104 X-3377-362-1 LEVER (N) ASSY, PINCH 105 3-029-275-01 WASHER (STOPPER N) 106 3-029-278-01 WASHER 107 3-029-276-02 WASHER (STOPPER R) 108 3-029-289-01 WASHER 109 X-3376-813-1 CLUTCH ASSY (F) 110 3-932-724-21 WASHER 111 3-040-897-04 SPRING (TGA), TORSION 112 3-386-694-01 WASHER 113 3-029-306-21 FLYWHEEL (N), INSERT 114 3-388-079-01 BELT 115 3-029-268-21 FLYWHEEL (R), INSERT 116 3-007-428-01 WASHER (R) 117 3-029-765-01 SCREW (M1.4), TOOTHED LOCK 118 3-029-274-11 RETAINER (F2), MOTOR 119 3-007-433-01 SHEET (N), REFLECTION 120 X-3378-107-3 CHASSIS (FB) ASSY 121 3-010-274-02 TABLE, REEL 122 3-010-954-01 SPRING (BT), COMPRESSION 123 3-029-282-01 GEAR (Y) 124 3-029-285-02 GEAR, CAM 125 3-029-284-03 LEVER, TRIGGER 126 3-029-281-01 GEAR, IDLER (B) 127 3-010-273-02 GEAR (REEL) 128 3-029-273-01 GEAR (FR) 129 3-029-283-02 GEAR, IDLER (A) 130 3-029-286-01 GEAR (NR) 131 3-029-288-01 PULLEY, REVERSE 132 3-033-757-01 SHEET (H) HP901 1-500-639-21 HEAD, MAGNETIC (PLAYBACK) M901 1-763-166-14 MOTOR (CAPSTAN/REEL) (WITH PULLEY) PM901 1-454-674-41 SOLENOID, PLUNGER 113 PM901 HP901 M901 110 109 112 111 116 115 117 118 119 106 120 105 108 107 104 101 103 102 114 121 121 132 132 122 122 123 124 125 126 127 127 128 129 129 130 131 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 WM-EX527 MAIN SECTION 8 ELECTRICAL PARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * A-3021-287-A MAIN BOARD, COMPLETE ********************* < CAPACITOR > C101 1-107-520-11 TANTALUM CHIP 33uF 20% 2.5V C102 1-115-156-11 CERAMIC CHIP 1uF 10V C103 1-115-156-11 CERAMIC CHIP 1uF 10V C104 1-115-156-11 CERAMIC CHIP 1uF 10V C107 1-164-505-11 CERAMIC CHIP 2.2uF 16V C108 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C109 1-164-677-11 CERAMIC CHIP 0.033uF 10% 16V C133 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C201 1-107-520-11 TANTALUM CHIP 33uF 20% 2.5V C202 1-115-156-11 CERAMIC CHIP 1uF 10V C203 1-115-156-11 CERAMIC CHIP 1uF 10V C204 1-115-156-11 CERAMIC CHIP 1uF 10V C207 1-164-505-11 CERAMIC CHIP 2.2uF 16V C208 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C209 1-164-677-11 CERAMIC CHIP 0.033uF 10% 16V C233 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V C301 1-119-663-11 TANTALUM CHIP 47uF 20% 2.5V C302 1-164-156-11 CERAMIC CHIP 0.1uF 25V C303 1-125-926-95 TANTALUM CHIP 4.7uF 20% 2.5V C304 1-115-156-11 CERAMIC CHIP 1uF 10V C305 1-126-236-11 ELECT 330uF 20% 2V C306 1-109-935-11 TANTALUM CHIP 4.7uF 20% 4V C307 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C308 1-165-112-11 CERAMIC CHIP 0.33uF 16V C309 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C310 1-135-149-21 TANTALUM CHIP 2.2uF 20% 10V C311 1-164-156-11 CERAMIC CHIP 0.1uF 25V C312 1-115-156-11 CERAMIC CHIP 1uF 10V C313 1-109-935-11 TANTALUM CHIP 4.7uF 20% 4V C314 1-135-187-21 TANTALUM CHIP 2.2uF 20% 4V C316 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C319 1-164-156-11 CERAMIC CHIP 0.1uF 25V C320 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V C321 1-115-416-11 CERAMIC CHIP 0.001uF 5% 25V C322 1-125-899-11 TANTALUM CHIP 220uF 20% 4V C323 1-115-412-11 CERAMIC CHIP 680PF 5% 25V C601 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C602 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C603 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V C604 1-164-156-11 CERAMIC CHIP 0.1uF 25V NOTE: • Due to standardization, replacements in the parts list may be different from the parts speci- fied 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 • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when order- ing 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 When indicating parts by reference number, please include the board. C605 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V C606 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C607 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C608 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V C701 1-119-750-11 TANTALUM CHIP 22uF 20% 6.3V C702 1-104-851-11 TANTALUM CHIP 10uF 20% 10V C703 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V C708 1-115-156-11 CERAMIC CHIP 1uF 10V C709 1-115-156-11 CERAMIC CHIP 1uF 10V C711 1-115-156-11 CERAMIC CHIP 1uF 10V < COMPOSITION CIRCUIT BLOCK > CB301 1-127-575-21 CAP, CHIP CERAMIC 470PF SL < DIODE > D701 8-719-404-50 DIODE MA111-TX D702 8-719-072-70 DIODE MA2ZD14001S0 D703 8-719-077-09 LED CL-196HR-CD-T (BATT) D705 8-719-077-09 LED CL-196HR-CD-T (AVLS) D706 8-719-077-09 LED CL-196HR-CD-T (BL SKIP/s) D709 8-719-068-83 DIODE MAZL068D0LS0-TX/L D710 8-719-422-58 DIODE MA8062 D711 8-719-422-58 DIODE MA8062 < FERRITE BEAD > FB101 1-469-125-21 FERRITE FB201 1-469-125-21 FERRITE < IC > IC301 8-759-579-12 IC TA2123AF (EL) IC601 8-759-356-46 IC MM1279XVBE IC701 8-759-651-61 IC uPD789166GB-510-8ES IC702 8-759-566-77 IC XC6371C251PL IC703 8-759-665-68 IC PST9016NL IC704 8-759-387-31 IC TC75S55F (TE85R) < JACK > J301 1-779-867-81 JACK (i) < RESISTOR > JC101 1-216-864-11 SHORT CHIP 0 JC201 1-216-864-11 SHORT CHIP 0 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 Remark Ref. No. Part No. Description Remark 21 WM-EX527 JC702 1-216-864-11 SHORT CHIP 0 < COIL > L701 1-412-032-11 INDUCTOR CHIP 100uH < PHOTO REFLECTOR > PH701 8-749-014-43 PHOTO REFLECTOR PR-20-T < TRANSISTOR > Q301 8-729-800-71 TRANSISTOR 2SB815B7-TB Q303 8-729-924-04 TRANSISTOR DTA143TU Q304 8-729-421-23 TRANSISTOR XN1216 Q701 8-729-230-72 TRANSISTOR 2SA1362YG Q702 8-729-420-50 TRANSISTOR UN5215 < RESISTOR > R101 1-216-849-11 METAL CHIP 220K 5% 1/10W R102 1-216-839-11 METAL CHIP 33K 5% 1/10W R103 1-216-811-11 METAL CHIP 150 5% 1/10W R104 1-218-867-11 METAL CHIP 6.8K 5% 1/10W R105 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R106 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R107 1-216-837-11 METAL CHIP 22K 5% 1/10W R108 1-216-789-11 METAL CHIP 2.2 5% 1/10W R111 1-216-827-11 METAL CHIP 3.3K 5% 1/10W R112 1-216-809-11 METAL CHIP 100 5% 1/10W R113 1-216-853-11 METAL CHIP 470K 5% 1/10W R114 1-216-821-11 METAL CHIP 1K 5% 1/10W R201 1-216-849-11 METAL CHIP 220K 5% 1/10W R202 1-216-839-11 METAL CHIP 33K 5% 1/10W R203 1-216-811-11 METAL CHIP 150 5% 1/10W R204 1-218-867-11 METAL CHIP 6.8K 5% 1/10W R205 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R206 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R207 1-216-837-11 METAL CHIP 22K 5% 1/10W R208 1-216-789-11 METAL CHIP 2.2 5% 1/10W R211 1-216-827-11 METAL CHIP 3.3K 5% 1/10W R212 1-216-809-11 METAL CHIP 100 5% 1/10W R213 1-216-853-11 METAL CHIP 470K 5% 1/10W R214 1-216-821-11 METAL CHIP 1K 5% 1/10W R302 1-216-849-11 METAL CHIP 220K 5% 1/10W R303 1-216-833-11 METAL CHIP 10K 5% 1/10W R304 1-216-835-11 METAL CHIP 15K 5% 1/10W R305 1-216-837-11 METAL CHIP 22K 5% 1/10W R306 1-216-793-11 METAL CHIP 4.7 5% 1/10W R307 1-216-825-11 METAL CHIP 2.2K 5% 1/10W R308 1-216-851-11 METAL CHIP 330K 5% 1/10W R601 1-216-837-11 METAL CHIP 22K 5% 1/10W R602 1-216-809-11 METAL CHIP 100 5% 1/10W R603 1-216-829-11 METAL CHIP 4.7K 5% 1/10W R604 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R605 1-216-833-11 METAL CHIP 10K 5% 1/10W R622 1-216-849-11 METAL CHIP 220K 5% 1/10W R623 1-216-849-11 METAL CHIP 220K 5% 1/10W R624 1-216-849-11 METAL CHIP 220K 5% 1/10W R701 1-216-823-11 METAL CHIP 1.5K 5% 1/10W R702 1-216-855-11 METAL CHIP 680K 5% 1/10W R703 1-216-853-11 METAL CHIP 470K 5% 1/10W R704 1-216-853-11 METAL CHIP 470K 5% 1/10W R705 1-216-821-11 METAL CHIP 1K 5% 1/10W R706 1-216-843-11 METAL CHIP 68K 5% 1/10W R707 1-218-911-11 METAL CHIP 470K 0.5% 1/10W R708 1-218-863-11 METAL CHIP 4.7K 0.5% 1/10W R710 1-216-853-11 METAL CHIP 470K 5% 1/10W R711 1-216-853-11 METAL CHIP 470K 5% 1/10W R712 1-216-853-11 METAL CHIP 470K 5% 1/10W R713 1-216-847-11 METAL CHIP 150K 5% 1/10W R714 1-216-803-11 METAL CHIP 33 5% 1/10W R715 1-216-821-11 METAL CHIP 1K 5% 1/10W R717 1-216-849-11 METAL CHIP 220K 5% 1/10W R718 1-216-821-11 METAL CHIP 1K 5% 1/10W R720 1-218-871-11 METAL CHIP 10K 0.5% 1/10W R721 1-218-839-11 METAL CHIP 470 0.5% 1/10W R722 1-218-855-11 METAL CHIP 2.2K 0.5% 1/10W R723 1-218-851-11 METAL CHIP 1.5K 0.5% 1/10W R724 1-218-859-11 METAL CHIP 3.3K 0.5% 1/10W R725 1-218-859-11 METAL CHIP 3.3K 0.5% 1/10W R726 1-216-821-11 METAL CHIP 1K 5% 1/10W R727 1-216-821-11 METAL CHIP 1K 5% 1/10W R728 1-216-821-11 METAL CHIP 1K 5% 1/10W R731 1-216-857-11 METAL CHIP 1M 5% 1/10W R732 1-216-849-11 METAL CHIP 220K 5% 1/10W R733 1-218-895-11 METAL CHIP 100K 0.5% 1/10W R734 1-218-851-11 METAL CHIP 1.5K 0.5% 1/10W R735 1-218-871-11 METAL CHIP 10K 0.5% 1/10W R736 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W R737 1-218-875-11 METAL CHIP 15K 0.5% 1/10W R738 1-218-859-11 METAL CHIP 3.3K 0.5% 1/10W R739 1-216-847-11 METAL CHIP 150K 5% 1/10W R740 1-216-847-11 METAL CHIP 150K 5% 1/10W R750 1-216-845-11 METAL CHIP 100K 5% 1/10W < VARIABLE RESISTOR > RV301 1-227-167-21 RES, VAR, CARBON 30K/30K (VOL) RV601 1-238-088-11 RES, ADJ, CERMET 2.2K < SWITCH > S701 1-771-475-21 SWITCH, SLIDE (DIRECTION) S702 1-771-851-21 SWITCH, TACTILE (SMD) (x) S703 1-771-851-21 SWITCH, TACTILE (SMD) (Y REPEAT) S704 1-771-851-21 SWITCH, TACTILE (SMD) (FF AMS, BL SKIP/s) S705 1-771-851-21 SWITCH, TACTILE (SMD) (REW AMS, AVLS) S706 1-771-851-21 SWITCH, TACTILE (SMD) (SOUND) S707 1-572-922-11 SWITCH, SLIDE (HOLD) S708 1-771-851-21 SWITCH, TACTILE (SMD) (FUNCTION) < THERMISTOR (POSITIVE) > THP601 1-810-794-11 THERMISTOR, POSITIVE < VIBRATOR > X701 1-767-289-11 VIBRATOR, CERAMIC (4MHz) ************************************************************** 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 Remark Ref. No. Part No. Description Remark 22 WM-EX527 MISCELLANEOUS ************** HP901 1-500-639-21 HEAD, MAGNETIC (PLAYBACK) M901 1-763-166-14 MOTOR (CAPSTAN/REEL) (WITH PULLEY) PM901 1-454-674-41 SOLENOID, PLUNGER S901 1-771-888-11 SWITCH, LEAF (TAPE DETECT, ATS) ************************************************************ ACCESSORIES ************ 3-247-273-41 MANUAL, INSTRUCTION (ENGLISH, TRADITIONAL CHINESE, KOREAN) 8-954-008-90 RECEIVER, EAR MDR-E808SP/C SET A-3052-138-A REMOTE CONTROL ASSY (RM-WME5) 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 23 WM-EX527 MEMO 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-EX527 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 1.0 2003.01 New 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