Sony Walkman WM-EX500, Service Manual

Page 1: ...ck Load impedance 8 300 ohms Power requirements 1 5 V One R6 size AA battery Dimensions w h d Approx 78 7 x 109 7 x 28 1 mm incl projecting parts and controls Mass Approx 145 g Approx 200 g incl a battery and a cassette Supplied accessories Stereo headphones or earphones with remote control 1 WM EX505 Stereo headphones or earphones 1 WM EX500 Design and specifications are subject to change without...

Page 2: ...EWS 24 8 ELECTRICAL PARTS LIST 26 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 th...

Page 3: ...witch 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 AMS button S704 or the REW AMS but ton S705 4 PLAY mode 1 Check that the preset...

Page 4: ...L 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 id...

Page 5: ... from instruction manual OPEN OPEN Y REPEAT x REW AMS AVLS FUNCTION SOUND VOL HOLD FF AMS BL SKIP s B A BATT VOL REW FF Y x Y REPEAT x NR FF AMS BL SKIP s REW AMS AVLS FUNCTION SOUND VOL HOLD HOLD Plug in firmly Branchez fermement WM EX500 WM EX505 ...

Page 6: ...e Follow the disassembly procedure in the numerical order given Set Lid Assy Cassette Main Board Note for Installation Holder FS Assy Lever N R Assy Pinch Head Magnetic HP901 Belt Motor Capstan Reel M901 Ornament Assy Case Assy Holder Battery 2 lid assy cassette 1 two screws M1 4 2 0 1 screw M1 4 2 0 ...

Page 7: ... 7 CASE ASSY ORNAMENT ASSY 1 three screws M1 4 3 0 1 two screws M1 4 3 0 2 case assy 1 two claws 2 ornament assy 1 claw knob hold S707 On installation reel ornament adjust the S707 and knob hold ...

Page 8: ... 8 HOLDER BATTERY BELT 2 two screws M1 7 4 5 3 battery holder 1 Break the soldering of battery terminal 1 Break the soldering of battery terminal 1 belt See page 4 ...

Page 9: ... 0 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 On installation MAIN board adjust the S701 and slider NRA MAIN board ...

Page 10: ... FS ASSY 1 two screws M1 4 1 4 2 boss 3 lock lever B 7 bracket cassette assy 5 lock lever S 4 screw M1 4 6 boss 9 Remove the holder FS assy to direction of the arrow 8 Remove six solders of flexible board 1 two screws M1 4 2 motor M901 ...

Page 11: ...SY PINCH HEAD MAGNETIC HP901 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 1 claw 2 Remove the magnetic head to direction of the arrow ...

Page 12: ...k 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 Procedure PRECAUTION 1 Specified voltage 1 3 V DC 2 Setting BL SKIP OFF SOUND NORM MB GRV NORM AVLS OFF NR WM EX505 only OFF Test tape 1 Playback WS 48A tape center in the FWD state 2 Ad...

Page 13: ...T 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 HOLD S707 FUNCTION S708 SOUND S706 REW AMS S705 FF AMS S704 Y S703 x S702 REPEAT iREMOTE J301 IN L OUT L 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 SW F R SW...

Page 14: ...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 FRENCH EXCEPT FRENCH EXCEPT FRENCH EX500 EX505 EX505 EX505 EX505 S704 FF AMS S705 REW AMS D706 BL SKIP s 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...

Page 15: ...r less unless otherwise specified indicates tolerance f internal component C panel designation U B Line H adjustment for repair Total current is measured with a cassette installed Power voltage is dc 1 5V 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 aVOM Input impedance 10...

Page 16: ...ect signal input of the capstan reel motor M901 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 TA2123AF IC301 or power supply output for the dolby NR amp IC302 L power off H power on IC302 Used for the WM EX505...

Page 17: ...speed 36 MUTE O Power on mute control signal output to the TA2123FA IC301 L mute on 37 VSS1 Ground terminal 38 PM CTL O Plunger drive signal output terminal L plunger on 39 LED AVLS O LED drive signal output of the AVLS indicator D705 L LED on 40 LED BL SKIP O LED drive signal output of the BL SKIP s indicator D706 L LED on 41 42 NC Not used open 43 AVDD Power supply terminal 2 5V for A D converte...

Page 18: ... 0 LOCKING BLACK BLUE 3 3 042 001 01 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 7 3 047 460 01 CUSHION C 8 A 3021 284 A MAIN BOARD COMPLETE EX505 EXCEPT FRENCH 8 A 3021 286 A MAIN BOARD COMPLETE EX505 FRENCH 8 A 3021 287 A MAIN BOARD COMPLETE EX500 EXCEPT FRENCH 8 A 3021 288 A MAIN BOARD COMPLETE EX500 FRENCH 9 3 939 590 05 SCREW IB ...

Page 19: ...SERT 66 3 007 428 01 WASHER R 67 3 029 765 01 SCREW M1 4 TOOTHED LOCK 68 3 029 274 11 RETAINER F2 MOTOR 69 3 007 433 01 SHEET N REFLECTION 70 X 3378 107 1 CHASSIS FB ASSY 71 3 010 274 02 TABLE REEL 72 3 010 954 01 SPRING BT COMPRESSION 73 3 029 282 01 GEAR Y 74 3 029 285 01 GEAR CAM 75 3 029 284 01 LEVER TRIGGER 76 3 029 281 01 GEAR IDLER B 77 3 010 273 02 GEAR REEL 78 3 029 273 01 GEAR FR 79 3 02...

Page 20: ...33uF 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 1 117 181 11 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...

Page 21: ...16W R203 1 216 811 11 METAL CHIP 150 5 1 16W R204 1 216 831 11 METAL CHIP 6 8K 5 1 16W R205 1 216 823 11 METAL CHIP 1 5K 5 1 16W R206 1 216 825 11 METAL CHIP 2 2K 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 1 216 837 11 METAL CHIP 22K 5 1 16W EX505 R211 1 216 827 11 METAL CHIP 3 3K 5 1 16W R212 1 216 809 11 METAL CHIP 100 5 1 16W EXCEPT FRENCH R21...

Page 22: ...GLAZE 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 S705 1 771 851 21 SWITCH TACTILE SMD REW AMS 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 TH...