SONY SRF-M73电路原理图 .pdf

MICROFILM SERVICE MANUAL FM STEREO/AM PLL SYNTHESIZED RADIO US Model Panama Model SPECIFICATIONS SRF-M73 Ver 1.0 1999. 03 本资料由O K X I A 视听皮带资源库w w w . o k x i a . c n 提供 2 TABLE OF CONTENTS 1.SERVICING NOTES.2 2.GENERAL.3 3.DISASSEMBLY.4 4.ELECTRICAL ADJUSTMENTS.6 5.DIAGRAMS 5-1.Block Diagram .8 5-2.Printed Wiring Boards. 10 5-3.Schematic Diagram . 13 5-4.IC Pin Function Description . 18 6.EXPLODED VIEWS. 19 7.ELECTRICAL PARTS LIST. 20 Forced Reset The system microprocessor 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 SCAN button, press two buttons of START/ STOP and BAND simultaneously for 5 seconds. 3.The unit is reset, and display blinking “AM 12:00”. SECTION 1 SERVICING NOTES 3 SECTION 2 GENERAL This section is extracted from instruction manual. 4 CABINET (FRONT)/(REAR) ASSY KEY BOARD This set can be disassembled in the order shown below. SECTION 3 DISASSEMBLY Set Key BoardMain BoardKnob (A)Cabinet (Rear) Assy Cabinet (Front) Assy 2three screws (B1.7 8) 2two screws (B1.7 8) 1Remove the battery case lid of the arrow. 3cabinet (front) assy 4cabinet (rear) assy 1three claws 2Open the key board to direction of the arrow. 1four claws Note: Follow the disassembly procedure in the numerical order given. 5 MAIN BOARD KNOB (A) Note: Check that two switch (S1, S2) is latched with two adaptors when carrying out installation. 2screw (B1.7 8) 1Remove two solders. 3knob (vol) 4two claws S1 S2 5main board 2two knobs (A) 1claw 1claw 3two adaptors 6 AM IF ADJUSTMENT Adjust for a maximum reading on level meter T1450 kHz AM VCO VOLTAGE ADJUSTMENT Adjustment PartFrequency DisplayReading on Digital Voltmeter L4530 kHz (531 kHz)3 0.1V Confirmation1710 kHz (1602 kHz)9 1V (8.5 1V) AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L1580 kHz (621 kHz) CT11,490 kHz (1,395 kHz) FM VCO VOLTAGE CONFIRMATION Frequency DisplayReading on Digital Voltmeter 87.5 MHz3 0.3V 108 MHzLess than 11 1V FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L287.5 MHz CT2108 MHz ( ): Panama model SECTION 4 ELECTRICAL ADJUSTMENTS 0 dB = 1 V AM Setting: Band switch: AM FM Setting: Band switch: FM Repeat the procedures in each adjustment several times, and the tracking adjustments should be finally done by the trimmer ca- pacitors. Adjustment Location: Main Board (See page 7) FM RF signal generator 22.5 kHz frequency deviation by 400 Hz signal Output level: as low as possible + level meter 2 jack (J1) set MAIN board TP (FM IN) 32 0.01 F + digital voltmeter MAIN board TP (VT) FM Free-Run Adjustment Setting: 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 Adjustment Location: MAIN board (See page 7) 0.01 F MAIN board TP (FM IN) set FM RF signal generator Carrier frequency : 98 MHz Modulation: no modultion Output level: 0.1 V (100 dB) + MAIN board TP (MPX) + 1 F frequency counter AM RF signal generator 30% amplitude modulation by 400 Hz signal Output level: as low as possible Put the lead-wire antenna close to the set. + level meter set 32 2 jack (J1) SRF-M73 7 8 9 MAIN BOARD (Component Side) Adjustment Location: MAIN BOARD (Conductor Side) L4 AM VCO Voltage Adjustment RT1 FM Free-Run Adjustment CT1 AM Tracking Adjustment L1 AM Tracking Adjustment T1 AM IF Adjustment FM Tracking Adjustment CT2 L2 TP (MPX) TP (FM IN) TP (VT) J1 SECTION 5 DIAGRAMS 5-1.BLOCK DIAGRAM 18 20 1613 19 2422 FM FRONT-END FM IF AMP/ DISCRI DECODER AMP SWITCH BASS BOOST CONTROL POWER AMP DET REGULATOR 1/2 COUNTER 1/2 COUNTER AM IF AMP/ DET TUNING INDICATOR PD1 VCO PD2 AM FRONT-END 14 FM RF IN FM/AM MIX OUT CF3: US CF4, 5: PANAMA 10.7MHz CF1 10.7MHz BASS BOOST AMP IC2 SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER, KEY CONTROL IC101 EEPROM IC105 CF2 450kHz FM RF 26 FM DISCRI FM IF IN 6 721 5 1 2 14 13 L-CH OUT R-CH OUT 4 2729123 ST IND AM IF IN PILOT DET LPF2 12 TUNE IND 9 AFC1/AGC 15 BAND SELECT PILOT DET LPF1 PLL LPF1 PLL LPF2 VCO AM OSC FM OSC AM RF IN FM/AM FRONT-END, FM/AM DET, MPX IC1 RT1 FM FREE-RUN L4 AM VCO VOLTAGE CT2, L2 FM TRACKING S1 FM SENS T1 AM IF CT1, L1 AM TRACKING L.P.F. B.P.F. BPF1 FM VCO BUFFER Q1 FM/AM BAND SELECT SWITCH Q3 COMPARATOR IC4 (1/2) LIQUID CRYSTAL DISPLAY LCD101 VOLTAGE DETECT IC102 B+ SWITCH Q104 DC/DC CONVERTER Q103, T101 B+ SWITCH Q6 AM IF BUFFER Q4, 5 LOW-PASS FILTER Q101 SIGNAL PATH : FM : AM 05 POWER AMP MUTE CONTROL RIPPLE FILTER Q2 KEY MATRIX S101 111, 113 116 KS0 KS3KR0 KR3 X101 75kHz SYSTEM CONTROLLER (IC101), EEPROM (IC105) B+ FM/AM TUNER (IC1), HEADPHONE AMP (IC3) B+ BASS BOOST AMP (IC2) B+ PLL LOW-PASS FILTER CIRCUIT B+ AM IF AMP CIRCUIT B+ D105 1 2 IN1 IN2 HEADPHONE AMP IC3 2 4 IN1 IN2 OUT1 OUT2 9 7 OUT1 OUT2 LP GAIN B+VREF 5 6 7 COMPARATOR IC4 (2/2) 3 2 1 B+ CT1 D1-1 L1 AM FERRITE-ROD ANTENNA L2 FM RF (PANAMA) POWER XOUT XIN IF ON CE DET IN MT/SW REG VCC AM IF IN EO VCOL VCOH BAND CMP IN 24 DATA 15 CK 14 21 CS SK 3 DI 4 DO CS 16252150 6 12 10 53 MUTE 5 BEEP 52317212019 DX LOCAL S2 MEGA BASS ON OFF D1-2D3 CT2 D2 L4 AM OSC L3 FM OSC RV1 VOL J1 (HEADPHONE) 2 + DRY BATTERY SIZE “AAA” (IEC DESIGNATION R03) 2PCS. 3V 10 136 9 COM0 COM3 31 34 SEG0 SEG14 35 49 SRF-M73 13 14 15 16 Waveforms KEY Board 1 IC101 XOUT 200 mV/DIV, 10 s/DIV 5-3.SCHEMATIC DIAGRAM See page 17 for IC Block Diagrams. 2 Q103 Base-1, Collector-2 (RADIO ON mode) 200 mV/DIV, 100 ns/DIV 3 Q103 Collector-1 (RADIO ON mode) 2 V/DIV, 100 ns/DIV 208 m Vp-p 13.3 s 616 m Vp-p 243 ns 4.9 Vp-p 243 ns Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. : internal component. C : panel designation. U : B+ Line. H : adjustment for repair. Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM () : AM Voltages are taken with a VOM (Input impedance 10 M). 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. F: FM f: AM FM FREE-RUN 21 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark R1341-216-097-00 RES, CHIP100K5%1/10W R1351-216-097-00 RES, CHIP100K5%1/10W R1361-216-089-00 RES, CHIP47K5%1/10W R1371-216-017-00 RES, CHIP475%1/10W R1381-216-825-11 METAL CHIP2.2K5%1/16W R1391-216-845-11 METAL CHIP100K5%1/16W R1401-216-833-11 RES, CHIP10K5%1/16W R1411-216-821-11 METAL CHIP1K5%1/16W R1711-216-833-11 RES, CHIP10K5%1/16W R1721-216-833-11 RES, CHIP10K5%1/16W R1731-216-833-11 RES, CHIP10K5%1/16W R1741-216-833-11 RES, CHIP10K5%1/16W R1761-216-049-11 RES, CHIP1K5%1/10W R1771-216-049-11 RES, CHIP1K5%1/10W S1131-572-499-11 SWITCH, TACTIL (POWER) S1141-572-499-11 SWITCH, TACTIL (HOLD) S1151-572-499-11 SWITCH, TACTIL (STRT/STOP) S1161-572-499-11 SWITCH, TACTIL (LAP/RESET) T1011-449-138-71 TRANSFORMER, DC-DC CONVERTER X1011-767-517-11 VIBRATOR, CRYSTAL (75kHz) * *A-3663-262-A MAIN BOARD, COMPLETE (US) *A-3663-288-A MAIN BOARD, COMPLETE (Panama) * 3-033-937-01 HOLDER (BAR ANT) BPF11-235-171-00 FILTER, BAND PASS C11-163-141-00 CERAMIC CHIP0.001uF5%50V C21-163-141-00 CERAMIC CHIP0.001uF5%50V C31-163-092-00 CERAMIC CHIP9PF0.25PF 50V C41-162-908-11 CERAMIC CHIP3PF0.25PF 50V C51-163-809-11 CERAMIC CHIP0.047uF10%25V C61-163-131-00 CERAMIC CHIP390PF5%50V C71-163-231-11 CERAMIC CHIP15PF5%50V C81-163-251-11 CERAMIC CHIP100PF5%50V C91-163-021-11 CERAMIC CHIP0.01uF10%50V C101-126-157-11 ELECT10uF20%16V C111-126-157-11 ELECT10uF20%16V C121-126-162-11 ELECT3.3uF20%50V C131-113-619-11 CERAMIC CHIP0.47uF10V C141-135-181-21 TANTALUM CHIP 4.7uF20%6.3V C161-162-970-11 CERAMIC CHIP0.01uF10%25V C171-164-156-11 CERAMIC CHIP0.1uF25V C181-135-259-11 TANTALUM CHIP 10uF20%6.3V C191-164-346-11 CERAMIC CHIP1uF16V C201-135-181-21 TANTALUM CHIP 4.7uF20%6.3V C211-124-584-00 ELECT100uF20%10V C221-164-004-11 CERAMIC CHIP0.1uF10%25V C231-164-227-11 CERAMIC CHIP0.022uF10%25V C241-164-227-11 CERAMIC CHIP0.022uF10%25V C251-164-346-11 CERAMIC CHIP1uF16V C261-164-336-11 CERAMIC CHIP0.33uF25V C271-164-336-11 CERAMIC CHIP0.33uF25V C281-163-021-11 CERAMIC CHIP0.01uF10%50V C291-164-004-11 CERAMIC CHIP0.1uF10%25V C301-163-809-11 CERAMIC CHIP0.047uF10%25V C311-104-912-11 TANTALUM CHIP 3.3uF20%6.3V C321-126-162-11 ELECT3.3uF20%50V C331-126-157-11 ELECT10uF20%16V C341-164-336-11 CERAMIC CHIP0.33uF25V C351-164-336-11 CERAMIC CHIP0.33uF25V C361-163-229-11 CERAMIC CHIP12PF5%50V C371-163-009-11 CERAMIC CHIP0.001uF10%50V C381-111-253-11 TANTALUM CHIP 100uF20%6.3V C391-163-251-11 CERAMIC CHIP100PF5%50V C401-163-251-11 CERAMIC CHIP100PF5%50V C411-127-569-91 TANTALUM CHIP 100uF20%4V C421-124-434-00 ELECT220uF20%4V C431-164-004-11 CERAMIC CHIP0.1uF10%25V C441-164-004-11 CERAMIC CHIP0.1uF10%25V C451-124-584-00 ELECT100uF20%10V C461-124-584-00 ELECT100uF20%10V C471-163-021-11 CERAMIC CHIP0.01uF10%50V C481-162-970-11 CERAMIC CHIP0.01uF10%25V C491-163-021-11 CERAMIC CHIP0.01uF10%50V C501-162-970-11 CERAMIC CHIP0.01uF10%25V C521-162-970-11 CERAMIC CHIP0.01uF10%25V C541-135-259-11 TANTALUM CHIP 10uF20%6.3V C551-126-518-11 ELECT470uF20%4V C561-126-518-11 ELECT470uF20%4V C571-163-009-11 CERAMIC CHIP0.001uF10%50V C581-164-004-11 CERAMIC CHIP0.1uF10%25V C591-163-021-11 CERAMIC CHIP0.01uF10%50V C601-162-927-11 CERAMIC CHIP100PF5%50V C621-162-927-11 CERAMIC CHIP100PF5%50V C631-162-927-11 CERAMIC CHIP100PF5%50V C641-163-251-11 CERAMIC CHIP100PF5%50V C651-162-927-11 CERAMIC CHIP100PF5%50V C731-162-970-11 CERAMIC CHIP0.01uF10%25V C741-163-021-11 CERAMIC CHIP0.01uF10%50V C751-164-004-11 CERAMIC CHIP0.1uF10%25V CF11-760-237-11 FILTER, CERAMIC CF21-579-638-11 FILTER, CERAMIC CF31-760-237-11 FILTER, CERAMIC (US) CF41-760-237-11 FILTER, CERAMIC (Panama) CF51-760-233-71 FILTER, CERAMIC (Panama) CT11-141-298-11 CAP, TRIMMER 10PF CT21-141-298-11 CAP, TRIMMER 10PF D18-719-072-59 DIODE SVC347S-TL KEY MAIN 22 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark D28-713-100-11 DIODE 1T362 D38-713-100-11 DIODE 1T362 IC18-752-062-48 IC CXA1238M-T6 IC28-759-380-15 IC LA3550MTP-1 IC38-759-802-75 IC LA4533M IC48-759-510-73 IC BA10393F-E2 JC11-216-296-00 SHORT 0 (Panama) J11-563-298-11 JACK (SMALL TYPE) (DIA. 3.5) (2) L11-754-057-11 ANTENNA, FERRITE-ROD (AM) L21-416-444-11 COIL, AIR-CORE L31-414-690-21 INDUCTOR 82nH L41-406-269-11 COIL (OSC) L61-412-947-11 INDUCTOR 4.7uH L71-412-947-11 INDUCTOR 4.7uH L81-412-947-11 INDUCTOR 4.7uH L91-412-959-11 INDUCTOR 47uH Q18-729-102-07 TRANSISTOR 2SC2223-F13 Q28-729-120-28 TRANSISTOR 2SC1623-L5L6 Q38-729-905-35 TRANSISTOR 2SC4081-R Q48-729-905-35 TRANSISTOR 2SC4081-R Q58-729-905-35 TRANSISTOR 2SC4081-R Q68-729-141-48 TRANSISTOR 2SB624-BV345 R11-216-097-00 RES, CHIP100K5%1/10W R21-216-097-00 RES, CHIP100K5%1/10W R31-216-073-00 METAL CHIP10K5%1/10W R41-216-057-00 METAL CHIP2.2K5%1/10W R51-216-837-11 METAL CHIP22K5%1/16W R61-216-121-00 RES, CHIP1M5%1/10W R71-216-813-11 METAL CHIP2205%1/16W R81-216-821-11 METAL CHIP1K5%1/16W R101-216-832-11 METAL CHIP8.2K5%1/16W R111-216-827-11 METAL CHIP3.3K5%1/16W R121-216-849-11 METAL CHIP220K5%1/16W R131-216-825-11 METAL CHIP2.2K5%1/16W R141-216-033-00 METAL CHIP2205%1/10W R161-216-001-00 METAL CHIP105%1/10W R171-216-827-11 METAL CHIP3.3K5%1/16W R181-216-827-11 METAL CHIP3.3K5%1/16W R191-216-849-11 METAL CHIP220K5%1/16W R201-216-065-00 RES, CHIP4.7K5%1/10W R211-216-101-00 METAL CHIP150K5%1/10W R221-216-101-00 METAL CHIP150K5%1/10W R231-216-845-11 METAL CHIP100K5%1/16W R241-216-821-11 METAL CHIP1K5%1/16W R251-216-833-11 RES, CHIP10K5%1/16W R261-216-833-11 RES, CHIP10K5%1/16W R271-216-821-11 METAL CHIP1K5%1/16W R281-216-821-11 METAL CHIP1K5%1/16W R301-216-073-00 METAL CHIP10K5%1/10W R311-216-073-00 METAL CHIP10K5%1/10W R321-216-093-00 RES, CHIP68K5%1/10W R331-216-825-11 METAL CHIP2.2K5%1/16W R341-216-825-11 METAL CHIP2.2K5%1/16W R351-216-845-11 METAL CHIP100K5%1/16W R361-216-825-11 METAL CHIP2.2K5%1/16W R371-216-809-11 METAL CHIP1005%1/16W R381-216-845-11 METAL CHIP100K5%1/16W R391-216-817-11 METAL CHIP4705%1/16W R401-216-805-11 METAL CHIP475%1/16W R411-216-809-11 METAL CHIP1005%1/16W R431-216-797-11 METAL CHIP105%1/16W R441-216-097-00 RES, CHIP100K5%1/10W R451-216-095-00 METAL CHIP82K5%1/10W R461-216-845-11 METAL CHIP100K5%1/16W R471-216-845-11 METAL CHIP100K5%1/16W RT11-238-663-11 RES, ADJ, CARBON 4.7K RV11-237-352-21 RES, BAR, CARBON 20K/20K (VOL) S11-570-675-11 SWITCH, SLIDE (FM SENS) S21-570-675-11 SWITCH, SLIDE (MEGA BASS) T11-404-444-31 TRANSFORMER, IF * MISCELLANEOUS * 21-771-677-21 SWITCH, RUBBER KEY * ACCESSORIES & PACKING MATERIALS * 3-035-159-01 STRAP, HAND 3-866-487-11 MANUAL, INSTRUCTION (ENGLISH, SPANISH) (Panama) 3-866-487-21 MANUAL, INSTRUCTION (ENGLISH) (US) 8-953-142-90 HEADPHONE MDR-W14G/K SET MAIN SRF-M73 Sony Corporation Personal A&V Products Company9-926-979-11 99C0539-1 Printed in Japan 1999. 3 Published by Quality Engineering Dept. (Shinagawa) 本资料由O K X I A 视听皮带资源库w w w . o k x i a . c n 提供