SRF-M73
Contents
1. 4 RED EEE t a amp 2 5 5 lt x2 1 _i lt w a 2 lt GOON ur o 3 a 2 gt ET 25777777720 i dte HR ARAS aa a r M 3 2 Sos AAAA AAA AA A A 2 Gerasza ne A SEO 74 EN 7 cena id S uqa aaa taa ide de r tes side identified with part numbe parts extracted from the component s parts extracted from the conductor s 2 c ot 28 lt _ CN CN CO CN r 2 O Gg Torre 4 Y Tt 35 O00 3 3 T Orrrdogdoamm oct Note Printed Wiring Boards DESIGNATION 2PCS 3V i 12 ing Pattern from the side which enables see Carbon pattern The other layers patterns are not indicated 1 163 684 673 684 05 I 673 683 Caution x rm c if 5 o D o g i o o i n Pattern face side HEADPHONE the pattern face are indicated Conductor Side Parts face side Parts on the parts face side seen from the parts face are indicated e w e Component Side 12 11 O 5 32. AM signal antenna close to generator he set level meter i 30 amplitude modulation by jack J1 400 Hz signal Output level as low as possible FM Setting Band switch FM FM RF signal MAIN board generator TP FM IN level meter 22 5 kHz frequency Oj deviation by 400 Hz signal Output level as low as possible Repeat the procedures in each adjustment several times and the tracking adjustments should be finally done by the trimmer ca pacitors digital voltmeter MAIN board M TP VT L Adjustment Location Main Board See page 7 AM IF ADJUSTMENT Adjust for a maximum reading on level meter 450 kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter 580 kHz 621 kHz 1 490 kHz 1 395 kHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter 87 5 MHz 108 MHz Panama model FM Free Run Adjustment Setting FM HF signal enerator g MAIN board TP FM IN 0 01 uF cT set Carrier frequency 98 MHz Modulation no modultion Output level 0 1 V 100 Procedure 1 Connect the frequency counter to TP MPX as shown the fig ure below 2 Tune the set to 98 MHz 3 Adjust RT1 for 76 kHz reading on the frequency counter Specification 75 8 kHz to 76 2 kHz frequency counter 17 uF MAIN board _ IC TP MPX Adjustment Location MAIN board See page 7 Adjustment Location MAIN BOARD
3. _ 155355 lk Voltage variations may be noted due to normal produc AE tion tolerances u Waveforms are taken with a oscilloscope n e od E Aa Voltage variations be noted due to normal produc K C121 0103 SS K tion tolerances Circled numbers refer to waveforms wee Signal path 8C 8C 2 CONVERTER r gt FM 5 U UU 3 s gt AM 44 15 16 C Block Diagrams MAIN Board 1238 6 GND 5 PLLLPF2 52 MPX REG FM DISCRI MUTE R9 AM OSC AFC FM AM FE QUT e S 2 FM IF DISCRI i unt d in COUNTER AUTO TUNING BLEND INDICATOR MONO STEREO MUTING BAND PASS MUTE 4 PECORD RIPPLE AMP FILTER cfg 5 5 i E 225 x SE gt 5 ee lt 5 e g ee 508 5 c 5 4 a gt a a E a S 2 LA3550MTP 1 4533 pd 4 IC PIN FUNCTION DESCRIPTION e KEY BOARD 101 uPD17073GB 556 1A7 SYSTEM CONTROLLER LIQUID CRYSTAL DISPLAY DRIVER KEY CONTROL Power on off control signal output for the AM IF amplifier circuit L power on L is output when AM scan mode gi Pin Name IF ON POWER BAND Power on off control signal output tor the radio system power supply H power on FM AM band selection signal output terminal L AM FM Power on off control signal output
4. 20 10V X101 1 767 517 11 VIBRATOR CRYSTAL 75kHz C47 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C49 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V A 3663 262 A MAIN BOARD COMPLETE US C50 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V A 3663 288 A MAIN BOARD COMPLETE Panama C52 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V gt gt ok ok gt ok KK OK K K K K K K K K K K K K C54 1 135 259 11 TANTALUM CHIP 10uF 20 6 3V 3 033 937 01 HOLDER BAR ANT C55 1 126 518 11 ELECT 470uF 20 4V C56 1 126 518 11 ELECT 470 20 4V lt BAND PASS FILTER gt C57 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C58 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V BPF1 1 235 171 00 FILTER BAND PASS C59 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V lt CAPACITOR gt C60 1 162 927 11 CERAMIC CHIP 100PF 5 50V C62 1 162 927 11 CERAMIC CHIP 100PF 5 50V C1 1 163 141 00 CERAMIC CHIP 0 001uF 5 50V C63 1 162 927 11 CERAMIC CHIP 100PF 5 50V C2 1 163 141 00 CERAMIC CHIP 0 001uF 5 50V C64 1 163 251 11 CERAMIC CHIP 100PF 5 50V C3 1 163 092 00 CERAMIC CHIP 0 25PF 50V C4 1 162 908 11 CERAMIC CHIP 3PF 0 25PF 50V C65 1 162 927 11 CERAMIC CHIP 100PF 5 50V C5 1 163 809 11 CERAMIC CHIP 0 047uF 10 25V C73 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C74 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C6 1 163 131 00 CERAMIC CHIP 390 5 50V C75 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V C7 1 163 231 11 CERAMIC CHIP 15PF 5 50V C8 1 163 251 11 CERAMIC CHIP 100PF 5 50V lt
5. 52 T 2 Part No 216 833 11 216 821 11 216 821 11 216 073 00 216 073 00 216 093 00 216 825 11 216 825 11 216 845 11 216 825 11 216 809 11 216 845 11 216 817 11 216 805 11 216 809 11 215 797 11 216 097 00 216 095 00 216 845 11 216 845 11 238 663 11 237 352 21 oSTUsp 511 570 675 11 Description Remark RES CHIP 10K 5 1 16W METAL CHIP 1K 5 1 16W METAL CHIP 1K 5 1 16W METAL CHIP 10K 5 1 10W METAL CHIP 10K 5 1 10W RES CHIP 68K 5 1 10W METAL CHIP 2 2K 5 1 16W METAL CHIP 2 2K 5 1 16W METAL CHIP 100K 5 1 16W METAL CHIP 2 2K 5 1 16W METAL CHIP 100 5 1 16W METAL CHIP 100K 5 1 16W METAL CHIP 470 5 1 16W METAL CHIP 47 5 1 16W METAL CHIP 100 5 1 16W METAL CHIP 10 5 1 16W RES CHIP 100K 5 1 10W METAL CHIP 82K 5 1 10W METAL CHIP 100K 5 1 16W METAL CHIP 100K 5 1 16W lt VARIABLE RESISTOR gt RES ADJ CARBON 4 7K RES BAR CARBON 20K 20K VOL lt SWITCH gt SWITCH SLIDE FM SENS SWITCH SLIDE MEGA BASS lt TRANSFORMER gt 1 404 444 31 TRANSFORMER IF K K K K K K K K K K K K K K K K K K K K K K K K K KK K K K K K K K K 1 771 677 21 MISCELLANEOUS KOK K K K K K K K K K K K K K SWITCH RUBBER KEY KOK K K KK K K K K K K K K K K K K K K K K K K K K KK KK K K K K K K K K K K K K K K K K K K K K K K K K
6. FILTER gt C9 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C10 1 126 157 11 ELECT 10uF 209 16V CF1 1 760 237 11 FILTER CERAMIC CF2 1 579 638 11 FILTER CERAMIC C11 1 126 157 11 ELECT 10uF 209 16V 1 760 237 11 FILTER CERAMIC US 12 1 126 162 11 3 3uF 20 50V CF4 1 760 237 11 FILTER CERAMIC Panama C13 1 113 619 11 CERAMIC CHIP 0 47uF 10V CF5 1 760 233 71 FILTER CERAMIC Panama C14 1 135 181 21 TANTALUM CHIP 4 7uF 209 6 3V C16 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V lt TRIMMER gt C17 1 164 156 11 CERAMIC CHIP 0 25V CT1 1 141 298 11 CAP TRIMMER 10PF C18 1 135 259 11 TANTALUM CHIP 10uF 20 6 3V CT2 1 141 298 11 CAP TRIMMER 10PF C19 1 164 346 11 CERAMIC CHIP luF 16V C20 1 135 181 21 TANTALUM CHIP 4 7uF 20 6 3V lt DIODE gt C21 1 124 584 00 ELECT 100 20 10V D1 8 719 072 59 DIODE SVC347S TL 2 5 SRF M73 Ref No Part No D2 8 713 100 11 D3 8 713 100 11 IC1 8 752 062 48 IC2 8 759 380 15 IC3 8 759 802 75 IC4 8 759 510 73 JC1 1 216 296 00 J1 1 563 298 11 L1 1 754 057 11 L2 1 416 444 11 L3 1 414 690 21 L4 1 406 269 11 L6 1 412 947 11 L7 1 412 947 11 L8 1 412 947 11 L9 1 412 959 11 Q1 8 729 102 07 Q2 8 729 120 28 Q3 8 729 905 35 Q4 8 729 905 35 Q5 8 729 905 35 Q6 8 729 141 48 R1 1 216 097 00 R2 1 216 097 00 R3 1 216 073 00 R4 1 216 057 00 R5 1 216 837 11 R6 1 216 121 00 R7 1 216 813 11 R8 1 216 821 11 R10 1 216 832 11 R11 1 216 827 11 R12 1 216 849 11 R13 1 216 825 11 R14 1
7. SCHEMATIC DIAGRAM See page 17 for IC Block Diagrams SRF M73 e Waveforms 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 13 20 21 22 23 24 25 KEY Board i 7 72 7 7 7 7 1 ee IC101 XOUT A MAIN BOARD 200 mV DIV 10 us DIV LC 101 LIQUI CRYSTAL L N 100 LI An TRACKING i C126 0 01 208 ANV B Ci JC106 0 w a B 1 1000p 10K Jl ene an 510547 mee C p OSC ENT C cl x 390p 12 C49 S o 0 01 UL v 13 3 us L1 C36 L4 PRESET S AM FERRITE RO 5 00 22k 1 3 25 A 347 315 P AM VCO 2 5 4 ANTENNA M Q103 Base 1 Collector 2 PO El co 7 5108 RADIO ON mode gt LOCAL 0 5 BUFFER RA 200 mV DIV 100 ns DIV 217 7 ra 52 i U OFF D ON N 616 m Vp p E R11 C31 7 x 5 5 eNO SYSTEM CONTROLLER 6 5V 10019 CRYSTAL E DISPLAY DRIVER R4 KEY CONTROL 243 ns 100 R45 1707368 i 1556 157 Q103 Collector 1 RADIO mode B
8. K K K K K K ACCESSORIES amp PACKING MATERIALS KOK K K K K K K K K K K K K K K K K K K K K K K K K K K K K K 3 035 159 01 3 866 487 11 3 866 487 21 8 953 142 90 Sony Corporation Personal A amp V Products Company STRAP HAND MANUAL INSTRUCTION ENGLISH SPANISH Panama MANUAL INSTRUCTION ENGLISH US HEADPHONE MDR W14G K SET 99C0539 1 Printed in Japan 1999 3 Published by Quality Engineering Dept Shinagawa
9. 16 845 11 METAL CHIP 100K 5 1 16W C27 1 164 336 11 CERAMIC CHIP 0 33uF 25V R140 1 216 833 11 RES CHIP 10K 5 1 16W C28 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V R141 1 216 821 11 METAL CHIP 1K 5 1 16W C29 1 164 004 11 CERAMIC CHIP 0 1uF 10 25V R171 1 216 833 11 RES CHIP 10K 5 1 16W C30 1 163 809 11 CERAMIC CHIP A 0 047uF 10 25V C31 1 104 912 11 TANTALUM CHIP 3 3uF 20 6 3V R172 1 216 833 11 RES CHIP 10K 5 1 16W R173 1 216 833 11 RES CHIP 10K 5 1 16W C32 1 126 162 11 ELECT 3 3uF 20 50V R174 1 216 833 11 RES CHIP 10K 5 1 16W C33 1 126 157 11 ELECT 10uF 209 16V R176 1 216 049 11 RES CHIP 1K 5 1 10W C34 1 164 336 11 CERAMIC CHIP 0 33uF 25V R177 1 216 049 11 RES CHIP 1K 5 1 10W C35 1 164 336 11 CERAMIC CHIP 0 33uF 25V C36 1 163 229 11 CERAMIC CHIP 12PF 5 50V SWITCH C37 1 163 009 11 CERAMIC CHIP 0 001 10 50V 113 1 572 499 11 SWITCH TACTIL POWER C38 1 111 253 11 TANTALUM CHIP 100uF 20 6 3V 5114 1 572 499 11 SWITCH TACTIL HOLD C39 1 163 251 11 CERAMIC CHIP 100PF 5 50V S115 1 572 499 11 SWITCH TACTIL STRT STOP C40 1 163 251 11 CERAMIC CHIP 100PF 5 50V S116 1 572 499 11 SWITCH TACTIL LAP RESET C41 1 127 569 91 TANTALUM CHIP 100uF 20 4V lt TRANSFOMER gt C42 1 124 434 00 ELECT 220uF 20 4V C43 1 164 004 11 CERAMIC CHIP 0 1uUF 10 25V T101 1 449 138 71 TRANSFORMER DC DC CONVERTER C44 1 164 004 11 CERAMIC CHIP 0 1uUF 10 25V C45 1 124 584 00 ELECT 100 20 10V lt VIBRATOR gt C46 1 124 584 00 ELECT 100
10. 216 033 00 R16 1 216 001 00 R17 1 216 827 11 R18 1 216 827 11 R19 1 216 849 11 R20 1 216 065 00 R21 1 216 101 00 R22 1 216 101 00 R23 1 216 845 11 R24 1 216 821 11 R25 1 216 833 11 9 926 979 11 Description Remark DIODE 17362 DIODE 17362 lt IC gt 1238 6 LA3550MTP 1 LA4533M BA10393F E2 lt SHORT gt SHORT 0 Panama lt JACK gt JACK SMALL TYPE DIA 3 5 Q lt COIL gt ANTENNA FERRITE ROD AM COIL AIR CORE INDUCTOR 82nH COIL OSC INDUCTOR 4 7uH INDUCTOR 4 7uH INDUCTOR 4 7uH INDUCTOR 47uH lt TRANSISTOR gt TRANSISTOR 2SC2223 F13 TRANSISTOR 2SC1623 L5L6 TRANSISTOR 2SC4081 R TRANSISTOR 2SC4081 R TRANSISTOR 2SC4081 R TRANSISTOR 2SB624 BV345 lt RESISTOR gt RES CHIP 100K 5 1 10W RES CHIP 100K 5 1 10W METAL CHIP 10K 5 1 10W METAL CHIP 2 2K 5 1 10W METAL CHIP 22K 5 1 16W RES CHIP 1M 5 1 10W METAL CHIP 220 5 1 16W METAL CHIP 1K 5 1 16W METAL CHIP 8 2K 5 1 16W METAL CHIP 3 3K 5 1 16W METAL CHIP 220K 5 1 16W METAL CHIP 2 2K 5 1 16W METAL CHIP 220 5 1 10W METAL CHIP 10 5 1 10W METAL CHIP 3 3K 5 1 16W METAL CHIP 3 3K 5 1 16W METAL CHIP 220K 5 1 16W RES CHIP 4 7K 5 1 10W METAL CHIP 150K 5 1 10W METAL CHIP 150K 5 1 10W METAL CHIP 100K 5 1 16W METAL CHIP 1K 5 1 16W RES CHIP 10K 5 1 16W Ref No R26 R27 R28 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R43 R44 R45 R46 R47 RT1 RV1 51
11. ASS BOOST AMP HEABPHONE AMP 2 V DIV 100 ns DIV IC1 IC2 13 RI16 10k E LA 550M LA4522M FM AM z s RII7 10k FRONT END n T FM AM BET 1 2 F p J F t 57 CXA1238M R E 220 4V O u 2 4 m p p G G 05 E in VOLTAGE 243 ns x EPROM SAIR DETECT 3 C105 x 95 25 i 1 co kes F H SEIS H I Note on Schematic Diagram C158 100 e All capacitors are in uF unless otherwise noted pF upF 50 WV or less are not indicated except for electrolytics CS QA and tantalums 10 7MHz 258224 o L101 All ist in Q and 4W or th i Bs SUIT 2 2204H e resistors are in and 4W or less unless otherwise PANAMA gt specified A internal component C118 470p e L___ panel designation 8128 Gs B Line 054 z 119 RIBO e adjustment for repair IF IF CURRENT eee ee CF Power voltage is dc 3 V and fed with regulated dc power BUFFER BUFFER n COMPARATOR 4 coe l css g jn supply from battery terminal a SANE F p Q MT Voltages and waveforms are dc with respect to ground SELECT SWITCH LOW PASS 1012 under no signal detuned conditions J 1 D FILTER J no mark FM BRY BATTERY SIZE AAA JM ix 7 05 Voltages are taken with a VOM Input impedance 10
12. Component Side L4 AM VCO Voltage Adjustment RT1 FM Free Run Adjustment CT1 AM Tracking Adjustment L1 AM Tracking Adjustment CT2 L2 Tracking Adjustment T1 AM IF Adjustment MAIN BOARD Conductor Side TP FM IN O 5 1 BLOCK DIAGRAM SECTION 5 DIAGRAMS SRF M73 lt V FM AM FRONT END FM AM DET MPX 05 5 10 7MHz CF2 450kHz 51 FM SENS FM RF FM AM 7 1 FRONT END 1 DX A I I y EE 60 1 1 LOCAL FM RF AM IF mE PANAMA CT2 L2 FM TRACKING eo frenon x AM FERRITE ROD ANTENNA l FRONT END D1 1 CT1 L1 eu AM TRACKING G 65 L4 AM VCO VOLTAGE A 1 4 e 4 3 AM OSC 93 FM OSC bi FM VCO LOW PASS BUFFER FILTER Q Q101 O I Q O lt E 2 KS0 KS3 5 5 8 Q x 6 9 10 13 5 44 46 64 05 X101 75kHz 9 8 KEY MATRIX S101 111 113 116 EEPROM IC105 e SIGNAL PATH gt FM gt AM 05 11 AM IF BUFFER Q4 5 AM IFIN COMO COM3 CF1 10 7MHz i FM DISCRI TUNING DET BAND SELECT FM AM BAND SELECT SWITCH BAND SEGO SEG14 LIQUID CRYSTAL DISPLAY LCD101 INDICATOR i AM IF AMP VREF B PILOT DET LPF2 PILOT D
13. Due to standardization replacements in the Items marked not stocked since they parts list may be different from the parts speci fied in the diagrams or the components used on the set are seldom required for routine service Some delay should be anticipated when order ing these items When indicating parts by reference number please include the board and X mean standardized parts so they SEMICONDUCTORS may have some difference from the original In each case u u for example one uA HA uPA uPA RESISTORS uPB uPC uPC All resistors are in ohms uPD pPD METAL Metal film resistor CAPACITORS METAL OXIDE Metal oxide film resistor uF F nonflammable COILS uH uH Ref No Par No Description Remark Ref No No Description Remark A 3663 259 A KEY BOARD COMPLETE IC ok ck ok E 1 K R R ok IC101 8 759 581 97 uPD17073GB 556 1A7 3 033 936 01 HOLDER LCD C102 8 759 491 99 5 80822ALNP EAB T2 3 036 200 01 SHEET SHIELD 10105 8 759 457 68 AK93C45AV L CAPACITOR lt SHORT gt C102 1 162 964 11 CERAMIC CHIP 0 0010 10 50V 46102 1 216 864 11 METALCHIP 0 5 1 16W C103 1 162 964 11 CERAMIC CHIP 0 001 10 50 46104 1 216 864 11 METAL CHIP 0 5 1 16W C104 1 162 964 11 CERAMIC CHIP 0 001uF 10 50 JC106 1 216 864 11 METAL CHIP 0 5 1 16W C105 1 162 964 11 CERAMIC CHIP 0 001uF 10 50 C108 1 135 181 21 TANTALUM CHIP 4 7u
14. ET AFC1 AGC LPF1 B SYSTEM CONTROLLER LIQUID CRYSTAL DISPLAY DRIVER KEY CONTROL IC101 POWER IFON L P F COMPARATOR IC4 1 2 COMPARATOR IC4 2 2 BASS BOOST AMP IC2 HEADPHONE AMP IC3 RV1 BASS BOOST 6 CONTROL n amp 1 FREE RUN gt O gt O HEADPHONE 77 Hi m O Lu O VOLTAGE DETECT IC102 SYSTEM CONTROLLER IC101 _ i EEPROM 1C105 B DRY BATTERY FM AM TUNER SIZE AAA HEADPHONE IC3 B IEC DESIGNATION R03 2PCS 3V RIPPLE FILTER BASS BOOST AMP IC2 B lt 2 DC DC CONVERTER 0103 T101 PLL LOW PASS FILTER CIRCUIT B B SWITCH AM IF AMP CIRCUIT B Q6 B SWITCH Q104 PRINTED WIRING BOARDS 5 2 SRF M73 MAIN BOARD CONDUCTOR SIDE KEY BOARD CONDUCTOR SIDE KEY BOARD COMPONENT SIDE Location Location o z Semiconductor DRY BATTERY SIZE AAA MAIN BOARD COMPONENT SIDE 2922289 wa TS bes DABEI MD D MATS ERA PCM d SSIS PSE CGE BEES COE EEC EEE EEL MUN MIT Li p 3 222012 BINE 2 Em SE jasoa S EN Lf E c z E P4 4m gt t 2 2
15. F 20 63 lt COIL gt C110 1 107 826 11 CERAMIC CHIP 0 1uF 10 16 L101 1 410 658 31 INDUCTOR CHIP 220uH 0111 1 163 239 11 CERAMIC CHIP 33PF 5 50V C112 1 163 231 11 CERAMIC CHIP 15PF 5 50V lt DISPLAY PANEL gt C113 1 107 826 11 CERAMIC CHIP O 1uF 10 16 C114 1 107 826 11 CERAMIC CHIP O 1uF 10 16 LCD101 1 803 534 11 DISPLAY PANEL LIQUID CRYSTAL C115 1 163 021 11 CERAMIC CHIP 0 010 10 50 TRANSISTOR C116 1 164 004 11 CERAMIC CHIP 0 1uF 10 25 C117 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V 0101 8 729 402 19 TRANSISTOR 6501 C118 1 162 962 11 CERAMIC CHIP 470PF 10 50 0103 8 729 402 19 TRANSISTOR XN6501 C119 1 110 501 11 CERAMIC CHIP 0 33 10 16 0104 8 729 402 16 TRANSISTOR 4608 0120 1 162 964 11 CERAMIC CHIP 0 001uF 10 50 lt RESISTOR gt C121 1 164 346 11 CERAMIC CHIP 1uF 16V C122 1 163 235 11 CERAMIC CHIP 22 5 50V R105 1 216 065 00 RES CHIP 4 7K 5 1 10W C123 1 163 038 00 CERAMIC CHIP 0 1uF 25V R106 1 216 089 00 RES CHIP 47K 5 1 10W C124 1 135 259 11 TANTALUM CHIP 10uF 20 6 3V R107 1 216 089 00 RES CHIP 47K 5 1 10W R109 1 216 097 00 RES CHIP 100K 5 125 1 163 038 00 CERAMIC CHIP 0 1uF 25V R110 1 216 821 11 METAL CHIP 1K 5 1 16W C126 1 162 970 11 CERAMIC CHIP Q 01uF 10 25V C151 1 162 964 11 CERAMIC CHIP 0 001uF 10 50 R111 1 216 821 11 METAL CHIP 1K 5 1 16W 6152 1 162 964 11 CERAMIC CHIP 0 0011 10 50 R112 1 216 821 11 METAL CHIP 1K 5 1 16W C153 1 162 964 11 CERA
16. MIC CHIP 0 001uF 10 50V 113 1 216 821 11 METAL CHIP 1K 5 1 16W R114 1 216 833 11 RES CHIP 10K 5 1 16W C154 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V R145 1 216 833 11 RES CHIP 10K 5 1 16W C156 1 163 017 00 CERAMIC CHIP 0 0047uF 5 50V C157 1 163 017 00 CERAMIC CHIP 0 0047uF 5 50V Rii6 1 216 833 11 RES CHIP 10K 5 1 16W C158 1 163 251 11 CERAMIC CHIP 100PF 5 50V R117 1 216 833 11 RES CHIP 10K 5 1 16W R118 1 216 833 11 RES CHIP 10K 5 1 16W lt CONDUCTIVE BOARD gt R120 1 216 049 11 RES CHIP 1K 5 1 10W R121 1 216 073 00 METAL CHIP 10K 5 1 10W CN101 1 694 532 11 CONDUCTIVE BOARD CONNECTION R123 1 216 833 11 RES CHIP 10K 5 1 16W DIODE R126 1 216 109 00 METAL CHIP 330K 5 128 1 216 833 11 RES CHIP 10K 9 1 16W D105 8 719 988 61 DIODE 1SS355TE 17 R129 1 216 845 11 METAL CHIP 100K 5 1 16W D106 8 719 977 40 DIODE DTZ TT11 13 R130 1 216 833 11 RES CHIP 10K 5 1 16W R133 1 216 049 11 RES CHIP 1K 9 1 10W 20 Ref No Part No Description Remark Ref No Part No Description Remark R134 1 216 097 00 RES CHIP 100K 5 1 10W C22 1 164 004 11 CERAMIC CHIP 0 10 25V R135 1 216 097 00 RES CHIP 100K 5 1 10W C23 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V R136 1 216 089 00 RES CHIP 47K 5 1 10W C24 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V R137 1 216 017 00 RES CHIP 47 5 1 10W C25 1 164 346 11 CERAMIC CHIP luF 16V C26 1 164 336 11 CERAMIC CHIP 0 33uF 25V R138 1 216 825 11 METAL CHIP 2 2K 5 1 16W R139 1 2
17. SRF M73 SERVICE MANUAL US Model Panama Model Ver 1 0 1999 03 WALKMAN FM AM SPECIFICATIONS Time display 12 hour system Frequency range Frequency Channel step FM 87 5 108 MHz 0 1 MHz AM 530 1 710 kHz 10 kHz Output Q jack stereo minijack load impedance 16 ohms Power output 20 mW 20 mW at 10 harmonic distortion Power requirements 3 V DC two R03 size AAA batteries Dimensions Approx 140 5 x 41 x 60 5 mm w h d 41 8x 15 8x 21 2 inches incl projecting parts and controls Mass Approx 103 g 3 63 02 not incl battery Accessories Supplied Stereo headphones 1 Belt holder 1 Hand strap 1 Design and specifications are subject to change without notice FM STEREO AM PLL SYNTHESIZED RADIO 5 1 5 2 5 3 5 4 TABLE OF CONTENTS SERVICING NOTES 2 lt lt 3 DISASSEMBLY 4 ELECTRICAL ADJUSTMENTS 6 DIAGRAMS Block LN 8 Printed Wiring Boards 10 SCli nmalie Diagram EE S 13 Pin Function Description 18 EXPLODED VIEWS 19 ELECTRICAL PARTS LIST 20 SECTION 1 SERVICING NOTES Forced Reset The system micro
18. for the pulse meter circuit power on 4 Not used open PULSE POWE 5 6 to 9 KS0 to KS3 10 to 13 KRO to KR3 Muting on off control signal output to the headphone amplifier IC3 L muting on A 15 DATA 17 AM IF IN GN iol PLL error signal output terminal AM VCO input terminal FM VCO input terminal Power supply terminal connected to the coupling capacitor Power supply terminal 43V tri t2 0 VCOL VCOH VREGI DD XOUT XIN VREG2 VLCDO CAPO 29 CAPI 30 VLCD2 31 to 34 COMO to COM3 35 to 49 SEGO to SEG14 ho System clock output terminal 75 kHz System clock input terminal 75 kHz Power supply terminal connected to the coupling capacitor A No r2 2 les 6 21 to oo Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage Beep sound drive signal output terminal 51 PULSE IN BEEP CMPIN PBI to PB3 53 54 to 56 Scan stop detect signal input terminal Initialize signal input for the destination select fixed at L in this set GAB 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 Ref No C9 n3 N O5 12 13 14 Parts Color Cabinet s Color Part N
19. igit s change rapidly 3 Press CLOCK The minute starts to flash Repeat steps 2 and 3 to set the minute After setting the minute press CLOCK again The clock starts from 0 seconds e 12 hour system 12 00 midnight PM 12 00 noon This section is extracted from instruction manual SECTION 3 DISASSEMBLY This set can be disassembled in the order shown below Set Cabinet Front Assy Cabinet Rear Assy I gt Key Board E gt Main Board E gt Knob A Note Follow the disassembly procedure in the numerical order given CABINET FRONT REAR ASSY three screws B1 7 x 8 Q Remove the battery case lid of the arrow two screws B1 7 x 8 Q cabinet front assy KEY BOARD three claws Open the key board to direction of the arrow four claws MAIN BOARD oO HEs s gt SR 0 lt lt 0 Gm Cp S X 0 x 29 SND OW 5 out installation knob vol two claws LAW SS EN Z ON A TETN J i E main boar NN NAS 7 22 W AY Remove two solders KNOB A two knobs A gt 5 S gt S 5 m SECTION 4 ELECTRICAL ADJUSTMENTS OdB 1uV AM Setting Band switch AM Put the lead wire
20. o X 3377 283 1 1 771 677 21 3 033 935 01 3 033 940 01 3 318 203 61 3 033 933 01 3 033 928 01 3 318 203 31 3 378 965 01 3 898 411 01 3 033 934 01 3 033 932 01 3 033 938 01 3 033 939 01 not supplied Description CABINET FRONT ASSY SWITCH RUBBER KEY HOLDER BUTTON BUTTON POWER SCREW B1 7X4 TAPPING ADAPTOR CABINET REAR SCREW B1 7X8 TAPPING SPRING RING PACKING KNOB KNOB VOL KNOB A CLIP A BELT CLIP B BELT SECTION 6 EXPLODED VIEW 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 and packing materials are given in the last of the electrical parts list LCD101 Part No 3 033 931 01 3 033 945 01 3 033 944 01 3 033 943 01 A 3663 262 A A 3663 288 A 3 378 515 01 3 033 937 01 A 3663 259 A 3 033 936 01 3 036 200 01 1 694 532 11 1 754 057 11 LCD101 1 803 534 11 19 Remark Description LID BATTERY CASE TERMINAL BATTERY TERMINAL BATTERY TERMINAL BATTERY MAIN BOARD COMPLETE US MAIN BOARD COMPLETE Panama BUSHING HOLDER BAR ANT KEY BOARD COMPLETE HOLDER LCD SHEET SHIELD CONDUCTIVE BOARD CONNECTION ANTENNA FERRITE ROD AM DISPLAY PANEL LIQUID CRYSTAL SECTION 7 KEY ELECTRICAL PARTS LIST NOTE
21. p and belt holder supplied MEGA BASS for dynamic bass sound Installing the Batteries See Fig 3 1 Remove the belt holder 2 Slide and open the lid at the rear of the unit 3 Insert two R03 size AAA batteries not supplied with correct polarity Insert the batteries from the negative Q terminal to prevent a short circuit and in the order from to 2 as shown in the illustration Battery life Using R03 Sony AAA batteries FM Approx 12 hours AM Approx 17 hours When to replace the batteries When the batteries become weak the battery QO indication will flash in the display Replace the batteries with new ones The unit will switch to the clock mode from any other mode Note e The battery indication in the display does not show the remaining power of the battery Notes on battery Insert the batteries with correct polarity Do not mix new and used batteries The batteries can not be charged Remove the batteries when the unit is not to be used for a long time e Should any battery leakage occur wipe the battery case well and install new batteries Setting the Clock The display will flash 12 00 when the batteries are first inserted 1 Hold down CLOCK for more than 2 seconds The hour flashes in the display 2 Press TUNE TIME SET or until the correct hour appears in the display Each press changes the digit s by one When you keep the button pressed the d
22. processor can be reset in the following proce dure Use these procedure when the unit cannot be worked normally due to the overrunning of the microprocessor etc Procedure 1 Set to radio OFF 2 While pressing the button press two buttons of START STOP and simultaneously for 5 seconds 3 The unit is reset and display blinking am 12 00 SECTION 2 GENERAL HOLD POWER START STOP LAP RESET BAND PRESET LAP MEMO 1to5 VOL MEGA BASS Holder FM SENS DX LOCAL RO3 AAA x 2 Changing AM Channel Step The channel step of this unit is factory set to 10 kHz When needed change the channel step before listening to the radio Area Channel step North and South 10kHz American countries Other countries 9kHz 4 Press POWER to turn off the power 2 While holding down SCAN keep pressing BAND for more than 5 seconds The channel step appears in the display for a few seconds To go back to the original channel step repeat step 2 Note When the AM channel step is changed the clock time and the lap time will be kept but the preset stations will be erased Features FM stereo PLL Phase Locked Loop Synthesized radio Up to 15 stations 10 for FM 5 for AM can be preset for one touch tuning Auto Station Scan tuning for speedy locating of stations Built in digital clock and stopwatch e Splash resistant for all weather use Countdown timer Hand stra
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