Sony WMFS220 - Portable Sports AM/FM Cassette Player, Service Manual

Page 1: ... 8 5 1 7 8 inches incl projecting parts and controls Mass Approx 280 g 9 9 oz Approx 355 g 12 6 oz incl batteries and a cassette Supplied Accessories Stereo headphones or earphones 1 Belt clip 1 Design and specifications are subject to change without notice Ver 1 0 2000 02 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 376...

Page 2: ...SASSEMBLY 3 1 Main Assembly 4 3 2 Chassis Sub Assy 5 3 3 Main Board and Mechanism Deck 5 3 4 Belt 6 3 5 Head Magnetic HP901 6 4 MECHANICAL ADJUSTMENT 7 5 ELECTRICAL ADJUSTMENT 7 6 DIAGRAMS 6 1 IC Block Diagrams 10 6 2 Block Diagram 11 6 3 Schematic Diagram 13 6 4 Printed Wiring Board 15 6 5 IC Pin Function Description 17 7 MEXPLODED VIEWS 7 1 Cabinet Assy Section 18 7 2 Main Board Section 19 7 3 M...

Page 3: ...ase SGL 601 7 651 000 10 Tapping screw B 1 4 4 Tapping screw B 1 4 4 Joint AVLS Joint VOL Knob Hold Knob Vol Ring O Apply sony grease SGL 601 Ring Dia 2 5 Dia 4 5 O Apply sony grease SGL 601 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 http...

Page 4: ...oard 7 Remove the headphone borad in the direction of arrow 1 Stop ring E 1 2 5 Two screws B1 7 7 3 Screw tapping 2 Screw tapping 4 Cassette sub assembly holder CAUTION WHEN ASSEMBLING THE MAIN ASSEMBLY Assemble the main assembly in a way that each switch mates with the corresponding knob each other DIR switch S301 POWER switch S303 DX LOCAL switch S304 Volume RV301 www xiaoyu163 com QQ376315150 9...

Page 5: ...othed Lock 1 Remove the solder fouf points 5 Stopper MD 4 Main board 2 Remove the solder 6 Mechanism deck 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 http www xiaoyu163 com ...

Page 6: ...AD MAGNETIC HP901 1 Two screws M1 4 2 Head magnetic HP901 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 http www xiaoyu163 com ...

Page 7: ...Tape speed adjustment Tape WS 48A Test Tape Tape Speed Adjustment Procedure Mode Playback Adjustment Value normal tape speed Adjust the tape speed adjustment RV601 so that the freqency counter reading becomes 3 000Hz Specification Value Frequency difference between the beginning and the end of the tape should be within 1 5 45 Hz Adjustment Location Test tape WS 48A 3 kHz 0 dB Set J301 phones 16 Ω ...

Page 8: ...erage and tracking adjustments should be finally done by the trimmer capacitors AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a 1 1V 0 1Vde reading on digital voltmeter L2 530 kHz AM IF ADJUSTMENT Adjust for a maximum reading on level meter T1 450 kHz FM TRACKING ADJUSTMENT Adjust for maximum reading on level meter L3 86 5 MHz CT2 109 5 MHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a 2 5V 0 1Vde r...

Page 9: ...ent L4 FM Frequency Coverage Adjustment L2 AM Frequency Coverage Adjustment TP22 FM IN TP30 VT 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 http www xiaoyu163 com ...

Page 10: ...POWER OUTC POWER OUT2 VCC POWER MUTE POWER IN1 POWER IN2 MIX OUT1 MIX OUT2 LP 2 R P2 R P1 DET OUT MVREF IN VSP LOW BOOST IN2 LOW BOOST IN1 LOW BOOST SW M GND R VREF PRE MUTE SW FWD REW POWER OUT1 POWER GND MVCC DR WOUT MP GND VOUT UOUT FC OUT OSC UB VB WB 3 4 5 6 7 8 9 10 11 12 PRE NF1 PRE OUT2 PRE NF2 PRE FWD IN2 PRE REV IN2 PRE REV IN1 PRE FWD IN1 S S PRE GND PRE OUT1 BIAS R F REF SYS CONT DET V...

Page 11: ...301 16 P OUT L 20 P OUT R 18 P COM 39 U OUT 40 V OUT 41 W OUT M601 REEL CAPSTAN MOTOR FM Signal Path PB Q2 BUFFER FM IN 56 11 BAND 29 SD AM IN 57 A OUT 61 A IN 60 EO 59 IC701 DTS 13 MEGA BASS 20 BEEP 32 TAPE POWER DRY BATTRY SIZE AA IEC DESIGNATION R6 2PCS 3V S303 POWER MUTE Q301 POWER SWITCH Q503 RIPPLE FILTER Q501 502 TUNER B POWER SWITCH Q92 TUNER B SWITCH Q91 VCC TUNER B L B SV 3 S S 21 POWER ...

Page 12: ...ed with regulated dc power supply from battery terminal Voltages are dc with respect to ground under no signal detuned conditions no mark PB FM AM Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F FM f AM E PB Refer to page 10 for IC Block Diagrams Refer to page 17 for IC Pin Function w w w x i a o y u 1 6 3 c o m ...

Page 13: ... 8 IC702 D 3 Q2 E 2 Q3 F 8 Q91 E 9 Q92 E 9 Q101 C 3 Q102 A 7 Q201 C 3 Q202 A 7 Q301 B 7 Q304 C 7 Q501 B 9 Q502 B 9 Q503 C 8 Semiconductor Location S303 TP30 TP22 CN301 R725 1 676 497 1 676 496 1 2 A B C D E F G 3 4 5 6 7 8 9 16 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 89249...

Page 14: ...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 7 1 CABINET ASSY SECTION 1 2 ND701 6 4 10 18 15 22 9 8 2 1 3 17 16 14 12 13 21 19 23 20 24 21 4 11 7 25 26 5 27 Ref No Part No Description Remarks Ref No Part No Description Remarks 1 3 042 8...

Page 15: ... 57 3 042 869 01 BUTTON PLAY 58 3 042 870 01 BUTTON FF 59 3 042 868 01 BUTTON STOP 60 3 042 892 01 STOPPER MD 62 3 015 285 01 SCREW M1 4 TOOTHED LOCK 63 A 3021 319 A MAIN BOARD COMPLETE 64 3 934 024 01 JOINT VOL B 65 3 042 872 01 TERMINAL BATTERY 66 3 042 873 01 SPRING BATTERY COIL L1 1 754 096 11 ANTENNA FERRITE ROD MW www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 ...

Page 16: ... SCREW M1 4 SPECIAL HEAD 205 3 019 776 01 GEAR REEL S 206 3 704 197 71 SCREW M1 4 207 X 3369 749 1 PINCH LEVER N ASSY 208 3 920 996 01 SPRING PINCH N HP901 1 500 517 11 HEAD MAGNETIC PLAYBACK M601 1 763 073 11 MOTOR REEL CAPSTAN WITH PULLEY 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 ...

Page 17: ...9 419 01 LEVER BR DETECTION 259 3 025 454 01 SPRING SW S 260 3 022 093 01 SPRING FR S 261 3 022 094 01 SPRING STOP S 262 3 728 091 01 WASHER STOPPER 263 3 019 778 01 SLEEVE MS 264 3 921 335 01 WASHER LEVER 265 3 920 990 01 SPRING UD COMPRESSION 266 3 019 774 01 GEAR BS 267 X 3372 619 1 WHEEL ASSY SP CAPSTAN 268 3 019 775 01 GEAR DS 269 3 933 324 01 SPRING FR LEVER 270 X 3374 601 1 CHASSIS ASSY GL ...

Page 18: ...33 1 115 416 11 CERAMIC CHIP 1000PF 5 00 25V C34 1 115 416 11 CERAMIC CHIP 1000PF 5 00 25V C35 1 115 416 11 CERAMIC CHIP 1000PF 5 00 25V C36 1 162 917 11 CERAMIC CHIP 15PF 5 50V C37 1 162 927 11 CERAMIC CHIP 100PF 5 50V C38 1 162 927 11 CERAMIC CHIP 100PF 5 50V C40 1 162 927 11 CERAMIC CHIP 100PF 5 50V C101 1 162 961 11 CERAMIC CHIP 330PF 10 50V C103 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C104 ...

Page 19: ... 729 230 60 TRANSISTOR 2SA1586YG TE85L Q92 8 729 014 12 TRANSISTOR RN1311 TE85L Q101 8 729 421 26 TRANSISTOR RN1310 TE85L Q102 8 729 013 37 TRANSISTOR 2SC4213 AB TE85L Q201 8 729 421 26 TRANSISTOR RN1310 TE85L Q202 8 729 013 37 TRANSISTOR 2SC4213 AB TE85L Q301 8 729 028 99 TRANSISTOR RN1307 TE85L Q501 8 729 230 72 TRANSISTOR 2SA1362 YG EL Q502 8 729 014 86 TRANSISTOR 2SC4207 YGRTE85L Q503 8 729 40...

Page 20: ... 1 16W R718 1 216 845 11 METAL CHIP 100K 5 1 16W R719 1 216 847 11 METAL CHIP 150K 5 1 16W R721 1 216 845 11 METAL CHIP 100K 5 1 16W R723 1 216 226 00 RES CHIP 15K 5 1 8W R724 1 216 845 11 METAL CHIP 100K 5 1 16W R725 1 216 805 11 METAL CHIP 47 5 1 16W VARIABLE RESISTOR RV301 1 225 184 11 RES VAR CARBON 10K 10K VOLUME RV601 1 241 916 11 RES ADJ CARBON 4 7K SWITCH S302 1 771 586 41 SWITCH SLIDE AVL...