sony_icf-r40_service_manual 电路图 维修原理图.pdf

MICROFILM SERVICE MANUAL FM/AM RADIO Tourist Model SPECIFICATIONS ICF-R40 Ver 1.0 1999. 03 RadioFans.CN 2 HOW TO CHANGED THE CERAMIC FILTERS This model is used two ceramic filters of CF2 and CF3. You must used same type of color marked ceramic filters in order to meet same specifications. Therefore, the ceramic filter must changed two pieces together since its supply two pieces in one package as a spare parts. CF2 CF3 mark MarkCenter frequency red10.70 MHz blue10.67 MHz orange10.73 MHz black10.64 MHz white10.76 MHz 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. SECTION 1 GENERAL This section is extracted from instruction manual. RadioFans.CN 3 CABINET (REAR) MAIN BOARD Note: Follow the disassembly procedure in the numerical order given. SECTION 2 DISASSEMBLY 1Pull out the ear receiver. 9claw 3two screws (DIA. 1.4 4) 4screw (M1.7 10) 9claw 8claw S1 6claw 7claw 6claw C 7claw 2Open the “lid, battery case” in the direction of arrows A to B. 5First, insert the flat-blade screwdriver into the cabinet and turn it in the direction of the arrow C to release two claws 6. Next, release all claws from 7 to 0 in numerical order. Note: Hold a cloth to the cabinet not to be damaged. !Remove two solders of reel assy. 8claw knob (earphone/spaeker) !claw A B !cabinet (rear) Note: On installation of cabinet (rear), adjust the knob (earphone/speaker) and S1. 3knob (2 band) 2knob (noise cut) 1knob (power) 4Remove two solders of speaker leads. 5MAIN board RadioFans.CN 4 REEL ASSY 4reel assy 2three screws (B1.4 3) 3Draw the ear receiver in the direction of the arrow. 1blind plate RadioFans.CN 5 SECTION 3 DIAL POINTER SETTING Note: Follow the assembly procedure in the numerical order given. A 4knob (tune) 1Insert the pointer in the groove of cabinet (front) assy and slide in the direction of the arrow A. 3gear (midway) cabinet (front) assy cabinet (front) assy the tip of pointer pointer marking 2Set the tip of pointer to the marking of cabinet (front) assy. 8Rotate the gear (tuning capacitor) fully in the direction of the arrow C. C B 9MAIN board Note: On installation of MAIN board, set the outline of gear (tuning capacitor). boss oval 6To install the gear fixing each oval shape, set the boss of the gear (tuning capacitor) as the figure. 7screw (1.7 3) 5Rotate the tuning capacitor shaft fully in the direction of the arrow B. cabinet (front) assy RadioFans.CN 6 FM Setting: POWER switch: AUTO OFF Band switch: FM Output select switch: (earphone) AM Setting: POWER switch: AUTO OFF Band switch: AM Output select switch: (earphone) Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. Adjustment Location: FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L375 MHz CT1-3109.5 MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L275 MHz CT1-4109.5 MHz AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1455 kHz AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L4515 kHz CT1-11,650 kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1600 kHz CT1-21,400 kHz SECTION 4 ELECTRICAL ADJUSTMENTS FM RF signal generator 22.5 kHz frequency deviation by 400 Hz signal Output level: as low as possible + level meter (earphone) jack (J1) set TP (FM IN) 16 0.01 F 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 16 (earphone) jack (J1) CT1-4 L2 FM Tracking Adjustment CT1-3 L3 CT1-2 L1 AM Frequency Coverage AdjustmentCT1-1 T1AM IF Adjustment L4AM Frequency Coverage Adjustment TP (FM IN) J1 (earphone) jack MAIN BOARD (Component Side) FM Frequency Coverage Adjustment AM Tracking Adjustment 0 dB=1 V RadioFans.CN ICF-R40 7 8 SECTION 5 DIAGRAMS 13 10 1518 11 68 FM FRONT-END FM IF AMP AF POWER AMP AM IF AMP, AGC, DET AM FRONT-END 17 20 FM RF IN MIX OUT CF2 10.7MHz CF1 455kHz CF3 10.7MHz Q1 TONE CONTROL SWITCH FM RF FM IF 3 FM DISCRIMINATOR TUNING METER DISCRI 28 AF OUT SP1 (SPEAKER) AF IN 24 16 25 DET AM IF METER VOL 5 BAND REG AM OSC L4 AM OSC L3 FM OSC L1 AM FERRITE-ROD ANTENNA FM OSC AM ANT L2 FM RF FM/AM FRONT-END, FM/AM IF AMP, DET, AGC, AF AMP IC1 TIMER IC2 CT1-2 + CT1-3, L3 FM FREQUENCY COVERAGE CT1-1, L4 AM FREQUENCY COVERAGE CT1-4, L2 FM TRACKING CT1-2, L1 AM TRACKING T1 AM IF SIGNAL PATH : FM : AM 05 9 DRY BATTERY SIZE “AAA” (IEC DESIGNATION R03) 2PCS. 3V FM/AM TUNER (IC1) B+ J1 (EARPHONE) EP1 (EARPHONE) B+ SWITCH Q3 BAND-PASS FILTER Q2 CR OSCILLATOR COUNTEROSC CHATTERING PROTECTOR CONTROL B+ OUT SET RESET D5 C33, R15 17 VDD OSC1 OSC3 8 7 6 5 1 3 ON OFF AUTO OFF S2 POWER D2 TUNE RV1 VOL CV1 TUNE CV1 TUNE AM FM S4 BAND S5 NOISE CUT ONOFF CT1-4 CT1-3 CV1-2 CV1-4 CT1-1 CV1-1 CV1-3 S1 / EARPHONESPEAKER 27 REG B+ (1.25V) VCC 5-1.BLOCK DIAGRAM RadioFans.CN ICF-R40 9 10 Semiconductor Location Ref. No.Location D1C-3 D2B-1 D5B-3 IC1F-2 IC2B-3 Q1C-2 Q2C-2 Q3B-3 Note on Printed Wiring Board: X : parts extracted from the component side. Y : parts extracted from the conductor side. W: indicates side identified with part number. r: Through hole. : internal component. b : 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 (Conductor Side)the pattern face are indicated. Parts face side:Parts on the parts face side seen from (Component Side)the parts face are indicated. 5-2.PRINTED WIRING BOARD RadioFans.CN ICF-R40 11 12 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 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. Signal path. F: FM f: AM 5-3.SCHEMATIC DIAGRAM IC Block Diagrams IC1CXA1280N IC2BU2305F-E2 GND GND AF OUT VCC RIPPLE FILTER AF IN DET AFC AGC AFC AGC GND METER NC FM IF AM IF BAND GND GND DISCRI NF VOL AM OSC AFC FM OSC REG FM RF AM ANT NC FM RF IN GND MIX OUT 302928272625242322212019181716 1213141589 10114561237 AF POWER AMP AM IF AMP, DET, AGC TUNING METER FM IF AMP AM FRONT-END FM FRONT-END FM DISCRIMINATOR OSC1 OSC2 OSC3 GND VCC SET RESET OUT 8 4 5 6 1 2 3 7 23 BIT COUNTER CHATTERING PROTECTOR CONTROL RadioFans.CN 13 14 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. 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 Cabinets Color Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark SECTION 7 ELECTRICAL PARTS LIST Ref. No.Part No.DescriptionRemark 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: , for example: uA. .: A. .uPA. . : PA. . uPB. .: PB. .uPC. . : PC. . uPD. .: PD. . CAPACITORS uF: F COILS uH: H Ref. No.Part No.DescriptionRemark When indicating parts by reference number, please include the board. MAIN 1A-3638-700-A CABINET (FRONT) ASSY 23-034-344-01 POINTER 33-034-347-01 GEAR (MIDWAY) 43-034-348-01 KNOB (TUNE) 53-895-823-11 SCREW (B1.4X3), TAPPING 6A-3638-697-A REEL ASSY 73-032-525-01 SCREW 83-032-492-01 PLATE (REWIND) 93-034-341-21 CABINET (REAR) 103-034-349-01 KNOB (POWER) 113-015-033-01 SCREW (DIA. 1.4X4), PRECISION 123-034-352-01 LID, BATTERY CASE 133-034-357-01 COMBINED (KNOB) (including KNOB (REWIND), KNOB (EARPHONE/ SPEAKER),KNOB (NOISE CUT), KNOB (2 BAND) 143-910-816-01 SCREW (M1.7x10) 153-034-212-01 TERMINAL (+/), BATTERY 163-034-210-01 TERMINAL (+), BATTERY 173-034-211-01 TERMINAL (), BATTERY * 18A-3683-046-A MAIN BOARD, COMPLETE 193-034-358-01 COMBINED (BLIND PLATE) (including BLIND PLATE, HOLDER (BAR ANTNNA) 203-880-990-00 SCREW (1.7X3), FLAT, (+) SPECIAL 213-034-346-01 GEAR (TUNING CAPACITOR) 223-384-797-01 SCREW (1.4X4) 233-036-666-01 SPRING (ELECTROSTATIC) 249-911-816-01 CLOTH, BATTERY PICK 253-831-441-99 CUSHION (A) L11-754-049-11 ANTENNA, FERRITE-ROD (AM) SP11-529-187-11 SPEAKER (2.8cm) 4A rB rC rD (including rB, rC, rD) (including 4A) L1 SP1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 24 16 17 18 19 21 22 20 23 25 *A-3683-046-A MAIN BOARD, COMPLETE * 3-034-346-01 GEAR (TUNING CAPACITOR) 3-034-358-01 COMBINED (BLIND PLATE) (including BLIND PLATE, HOLDER (BAR ANTENNA) 3-384-797-01 SCREW (1.4X4) 3-880-990-00 SCREW (1.7X3), FLAT, (+) SPECIAL C11-162-970-11 CERAMIC CHIP0.01uF10%25V C21-126-157-11 ELECT10uF20%16V C41-162-919-11 CERAMIC CHIP22PF5%50V C51-162-922-11 CERAMIC CHIP39PF5%50V C71-162-917-11 CERAMIC CHIP15PF5%50V C91-164-275-91 CERAMIC CHIP9PF5%50V C111-162-927-11 CERAMIC CHIP100PF5%50V C121-164-346-11 CERAMIC CHIP1uF16V C131-162-970-11 CERAMIC CHIP0.01uF10%25V C141-164-156-11 CERAMIC CHIP0.1uF25V C151-164-346-11 CERAMIC CHIP1uF16V C161-135-151-21 TANTALUM CHIP 4.7uF20%4V C171-126-157-11 ELECT10uF20%16V C181-164-227-11 CERAMIC CHIP0.022uF10%25V C191-126-157-11 ELECT10uF20%16V C201-164-346-11 CERAMIC CHIP1uF16V C211-164-346-11 CERAMIC CHIP1uF16V C221-127-569-11 TANTAL. CHIP100uF20%4V C231-124-434-00 ELECT220uF20%4V C241-162-927-11 CERAMIC CHIP100PF5%50V C251-165-176-11 CERAMIC CHIP0.047uF10%16V C261-164-346-11 CERAMIC CHIP1uF16V C271-164-156-11 CERAMIC CHIP0.1uF25V C281-164-227-11 CERAMIC CHIP0.022uF10%25V C291-164-677-11 CERAMIC CHIP0.033uF10%16V C301-164-227-11 CERAMIC CHIP0.022uF10%25V C311-162-964-11 CERAMIC CHIP0.001uF10%50V C321-164-156-11 CERAMIC CHIP0.1uF25V C331-162-968-11 CERAMIC CHIP0.0047uF10%50V C341-164-156-11 CERAMIC CHIP0.1uF25V C351-164-346-11 CERAMIC CHIP1uF16V CF11-567-177-00 FILTER, CERAMIC (455kHz) CF21-579-632-51 FILTER, CERAMIC (10.7MHz) CF31-579-632-51 FILTER, CERAMIC (10.7MHz) CT11-141-607-11 CAP, VAR CV11-141-607-11 CAP, VAR (TUNE) D18-719-800-76 DIODE 1SS226 D28-719-062-42 LED BR1111R-TR (TUNE) D58-719-046-91 DIODE MA2S111 IC18-752-036-29 IC CXA1280N IC28-759-583-17 IC BU2305F-E2 J11-785-506-11 JACK () L11-754-049-11 ANTENNA, FERRITE-ROD (AM) L21-419-109-11 COIL, AIR-CORE L31-419-108-11 COIL, AIR-CORE L41-406-255-11 COIL (OSC) L51-412-971-31 INDUCTOR 0.22uH L71-412-947-11 INDUCTOR 4.7uH L81-412-947-11 INDUCTOR 4.7uH L111-412-947-11 INDUCTOR 4.7uH L121-412-947-11 INDUCTOR 4.7uH Q18-729-037-71 TRANSISTOR UN9210J-(TX).SO Q28-729-037-92 TRANSISTOR 2SD2216J-R(TX).SO Q38-729-800-71 TRANSISTOR 2SB815B7-TB R11-216-813-11 METAL CHIP2205%1/16W R31-216-845-11 METAL CHIP100K5%1/16W R41-216-817-11 METAL CHIP4705%1/16W RadioFans.CN 15 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark MAIN R51-216-805-11 METAL CHIP475%1/16W R61-216-833-11 METAL CHIP10K5%1/16W R71-216-825-11 METAL CHIP2.2K5%1/16W R81-216-839-11 METAL CHIP33K5%1/16W R91-216-837-11 METAL CHIP22K5%1/16W R101-216-845-11 METAL CHIP100K5%1/16W R111-216-829-11 METAL CHIP4.7K5%1/16W R121-216-829-11 METAL CHIP4.7K5%1/16W R131-216-829-11 METAL CHIP4.7K5%1/16W R151-216-853-11 METAL CHIP470K5%1/16W R161-216-857-11 METAL CHIP1M5%1/16W R171-216-845-11 METAL CHIP100K5%1/16W R181-216-825-11 METAL CHIP2.2K5%1/16W R191-216-841-11 METAL CHIP47K5%1/16W R201-216-821-11 METAL CHIP1K5%1/16W R301-216-821-11 METAL CHIP1K5%1/16W R311-216-821-11 METAL CHIP1K5%1/16W R321-216-827-11 METAL CHIP3.3K5%1/16W R331-216-821-11 METAL CHIP1K5%1/16W R341-216-825-11 METAL CHIP2.2K5%1/16W R351-216-821-11 METAL CHIP1K5%1/16W RV11-225-779-11 RES, VAR 20K (VOL) S11-572-922-11 SWITCH, SLIDE (/) S21-762-651-11 SWITCH, SLIDE (POWER) S41-572-922-11 SWITCH, SLIDE (BAND) S51-572-922-11 SWITCH, SLIDE (NOISE CUT) T11-404-444-31 TRANSFORMER, IF * MISCELLANEOUS * 6A-3638-697-A REEL ASSY SP11-529-187-11 SPEAKER (2.8cm) * ACCESSORIES & PACKING MATERIALS * 3-036-916-21 CASE, CARRYING 3-865-825-11 MANUAL, INSTRUCTION (JAPANESE,ENGLISH,KOREAN,CHINESE) RadioFans.CN 16 ICF-R40 Sony Corporation Parsonal A&V Products Company9-926-942-11 99C05031-1 Printed in Japan 1999. 3 Published by Quality Engineering Dept. (Shinagawa) RadioFans.CN