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1、Ver 1.0 1999.08 MICROFILM ICF-403S SERVICE MANUAL FM/MW/SW 3 BAND RADIO SPECIFICATIONS AEP Model E Model Australian Model Saudi Arabia model AEP, Australian model RadioFans.CN 2 Specifications . 1 1.GENERAL Location and Function of Controls . 2 2.DISASSEMBLY 2-1. Cabinet (Rear). 3 2-2. Cabinet (Fron
2、t) . 3 2-3. Main Board, Chassis. 4 3.DIAL POINTER INSTALLATION. 5 4.ELECTRICAL ADJUSTMENTS. 6 5.DIAGRAMS 5-1. Printed Wiring Boards . 7 5-2. Schematic Diagram. 9 6.EXPLODED VIEWS.11 7.ELECTRICAL PARTS LIST. 13 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C du
3、ring 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 the minus side of a ta
4、ntalum capacitor may be dam- aged by heat. TABLE OF CONTENTS SECTION 1 GENERAL Earphone jack () DC IN 4.5V LOCATION AND FUNCTION OF CONTROLS RadioFans.CN 3 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (REAR) 2-2. CABINET (FRONT) r The equip
5、ment can be removed using the following procedure. Cabinet (Front)Cabinet (Rear)SetMain board, Chassis 1 Screw +P 2.6x8 Cabinet (front) Black () Brown (+) Chassis Main board 2 Remove solder 3 Black () Brown (+) 1 Screws +BTP 3x12 4 Screw +P 2.6x8 3 Lug, 3 Cabinet (rear) Cabinet (front) 2 Claws 1 Scr
6、ews +BTP 3x12 RadioFans.CN 4 2-3. MAIN BOARD, CHASSIS 2 Claws 4 Knob(tune) 3? ? 1 Screw +P 2.6x8 Chassis Main board RadioFans.CN 5 6 SECTION 3 DIAL POINTER INSTALLATION Note : Follow the installation procedure in the numerical order given. 1 Rack 6 ? Rack 5 Knob (tone) 5 3 Knob (tune) 2 Pointer Chas
7、sis Chassis 4 Scribed line Claws Main board S2 1Insert the rack into the chassis groove. 2Install the pointer. 3Install the knob (tune). 4Slide the rack and align it with the groove on the scribed line. 5Align the knob (tone) and the S2. 6Install the chassis to the main board. 1 Turn the CV shaft al
8、l thye way counterclockwise. 2 Set the gear ASSY onto the CV shaft in a direction as a figure. 3 Secure the gear ASSY with screw. Gear (A),tuning capacitor 4 2 1 3 Stopper Spring (gear) Hole A Projection Gear (B),tuning capacitor B Hole Spring (gear) 3 Screw (1.7x3) 2 Gear ASSY 1 CV shaft Main board
9、 Knob (tune) 1 Put a point of spring (gear) in a hole of “gear (A), tuning capacitor” and install it. 2 Install “gear (B), tuning capacitor” in a direction as a figure. 3 Turn the “gear (B), tuning capacitor” till a position of B fits A. 4 Hang the spring (gear) with a stopper. SECTION 4 ELECTRICAL
10、ADJUSTMENTS TUNER SECTION MW Section Procedure : BAND : MW SW Section Procedure : BAND : SW FM Section Procedure : BAND : FM AM RF signal generator 30% amplitude modulation by 400Hz signal. Output level : as low as possible Put the lead-wire antenna close to the set. Repeat the procedures in each ad
11、justment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. : Saudi Arabia model AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1455kHz MW FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L552
12、0kHz CT41,650kHz MW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1620kHz CT11,400kHz SW FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L65.8MHz CT618.5MHz SW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L25.8MHz CT518.5MHz FM FREQU
13、ENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L486.5MHz CT3109.5MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L386.5MHz CT2109.5MHz L6 : SW Frequency Coverage Adjustment CT3 : FM Frequency Coverage Adjustment L4 : FM Frequency Coverage Adjustment L5
14、: MW Frequency Coverage AdjustmentCT6 : SW Frequency Coverage Adjustment CT4 : MW Frequency Coverage Adjustment T1 : AM IF Adjustment L1 : MW Tracking Adjustment CT1 : MW Tracking Adjustment CT2 : FM Tracking Adjustment CT5 : SW Tracking Adjustment L2 : SW Tracking Adjustment L3 : FM Tracking Adjust
15、ment Adjustment Location : Main board (Component side) AM RF signal generator 12PF 30% amplitude modulation by 400Hz signal. Output level : as low as possible telescopic antenna terminal set 32 phone jack (J1) level meter FM RF signal generator 22.5kHz frequency deviation by 400Hz signal. Output lev
16、el : as low as possible telescopic antenna terminal 0.01F 0dB=1V RadioFans.CN 7 8 ICF-403S 5-1. PRINTED WIRING BOARDS D1B-7 D2B-7 D3A-2 IC1C-4 Q1C-5 Ref. No.Location r Semiconductor Location SECTION 5 DIAGRAMS GND GND FM DISCRI NF VOL AM OSC AFC FM OSC Reg OUT FM RF AM ANT N. C FM ANT FE GND MIX OUT
17、 21222324252627282930 235467891011112131415 1617181920 AF POWER AMP AM IF DET AGC AM FE FM DISCRIMINATOR FM FE TUNING METER FM IF GND GND AF OUT Vcc RIPPLE FILTER AF IN DET OUT AFC AGC AFC AGC IF GND LED N. C FM IF IN AM IF IN FM/AM BAND SELECT r IC Block Diagram. 02 213456789 A B C D D3 TUNE S2 TON
18、E HIGH LOW RV1 POWER/VOL R3 C30 C23 R6 C22 C28 C25 R13 C18 R9 R2 C6C5 C2 C1 C3 C9 C11 C27 C42 C13 C15 C31 C24 R1 R5 R10 R11 DC IN 4.5V MAIN BOARD ANT1 FM/SW TELESCOPIC ANTENNA DRY BATTERY SIZE AA (IEC DESIGNATION R6) 3PCS, 4.5V CT6 CT5 CV1-4 TUNING L6 L2 L5 -1 -2 -4-5 -6-3 S1 SW N MW N FM L3 L4 JW1
19、JW2 JW7 BPF1 1 5 10 15 16 20 26 30 IC1 JW5 JW4 JW8 JW3 JW6 JW15 JW14 C7 C8 CF3 C14 C21 C26 C29 C16 C20 C19 C32 JW10 JW11 JW12 JW13 CF2 CF1 T1 BCE Q1 D2 D1 L1 MW FERRITE-ROD ANTENNA 11 (11) 1-674-016- J2 SP1 SPEAKER + J1 JW9 CV1CV2 CV3CV4 CT3CT4 CT1 CT2 EXCEPT EA MODEL Note: X : parts extracted from
20、the component side. : internal component. b : Pattern from the side which enables seeing. Abbreviation EA: Saudi Arabia IC1 CXA1019S RadioFans.CN 9 10 5-2. SCHEMATIC DIAGRAM ICF-403S Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics
21、and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. : internal component. U : B+ Line. H : adjustment for repair. Power voltage is dc 4.5V and fed with regulated dc power supply from battery terminal (J2). Voltages are dc with respect to ground under no-signal (detuned)
22、 condi- tions. no mark : FM () : MW : SW Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Signal path. F : FM f : MWh : SW Abbreviation EA : Saudi Arabia RadioFans.CN 11 12 SECTION 6 EXPLODED VIEWS NOTE : -XX, -X mean standard
23、ized 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 Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when orderi
24、ng 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. Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 6-1. CABINET SECTION Abbrevi
25、ation EA : Saudi Arabia 7 not supplied 6 8 11 1 2 3 4 5 4 12 10 9 ANT1 SP1 6 13-037-016-01 CABINET (FRONT) (BLACK) 13-037-016-11 CABINET (FRONT) (WHITE) (AEP) 23-037-026-01 PLATE, TRANSPARENT (EXCEPT EA) 23-037-026-11 PLATE, TRANSPARENT (EA) 33-037-029-01 PANEL(SPEAKER) (BLACK) 33-037-029-11 PANEL(S
26、PEAKER) (WHITE) (AEP) 47-685-134-19 SCREW+P 2.6X8 TYPE2 NON-SLIT 57-623-508-01 LUG,3 67-685-548-14 SCREW +BTP 3X12 TYPE2 N-S 73-037-024-01 HANDLE (BLACK) 73-037-024-11 HANDLE (WHITE) (AEP) 83-037-017-01 CABINET (REAR) (BLACK) 83-037-017-11 CABINET (REAR) (WHITE) (AEP) 93-037-034-01 SPRING (HANDLE) 1
27、03-037-019-01 LID,BATTERY CASE (BLACK) 103-037-019-11 LID,BATTERY CASE (WHITE) (AEP) 113-372-124-01 CUSHION (BATTERY) 123-040-489-01 SHEET, SPEAKER ANT11-501-222-81 ANTENNA, TELESCOPIC (FM, SW) SP11-529-451-11 SPEAKER (7.7cm) Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 6-2. CH
28、ASSIS SECTION 63 64 65 62 66 67 51 52 55 56 58 59 60 61 69 68 57 53 54 D3 513-037-023-01 KNOB(TONE) (BLACK) 513-037-023-11 KNOB(TONE) (WHITE) (AEP) * 521-674-032-11 RACK RETAINER BOARD 533-037-021-01 KNOB(BAND) (BLACK) 533-037-021-11 KNOB(BAND) (WHITE) (AEP) 543-037-025-01 POINTER 553-369-170-01 RAC
29、K * 563-037-018-01 CHASSIS 573-037-030-01 TERMINAL (+), BATTERY * 58A-3663-363-A MAIN BOARD, COMPLETE (EXCEPT EA) * 58A-3663-380-A MAIN BOARD, COMPLETE (EA) 593-037-028-01 HOLDER, LED 607-685-134-19 SCREW +P 2.6X8 TYPE2 NON-SLIT 613-364-941-11 SCREW (+B) (2.6X5), NYLOK 623-037-027-01 GEAR(A), TUNING
30、 CAPACITOR 633-037-031-01 TERMINAL (-), BATTERY 643-037-020-01 KNOB(VOL) (BLACK) 643-037-020-11 KNOB(VOL) (WHITE) (AEP) 653-880-990-00 SCREW (1.7X3),FLAT,(+) SPECIAL 663-037-022-01 KNOB(TUNE) (BLACK) 663-037-022-11 KNOB(TUNE) (WHITE) (AEP) 673-037-523-01 PIN(TUNING CAPACITOR) 683-037-033-01 SPRING (
31、GEAR) 693-037-032-01 GEAR(B), TUNING CAPACITOR D38-719-069-94 LED TLR124 (TUNE) RadioFans.CN 13 NOTE : Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have
32、 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 ordering these i
33、tems. SEMICONDUCTORS In each case, u : , for example : uA. : A. , uPA. : PA. uPB. : PB. , uPC. : PC. uPD. : PD. CAPACITORS uF : F COILS uH : H Abbreviation EA : Saudi Arabia When indicating parts by reference num- ber, please include the board. SECTION 7 ELECTRICAL PARTS LIST Ref. No.Part No.Descrip
34、tionRemarkRef. No.Part No.DescriptionRemark MAIN *A-3663-363-A MAIN BOARD, COMPLETE (EXCEPT EA) *A-3663-380-A MAIN BOARD, COMPLETE (EA) * 3-037-020-01 KNOB (VOL) (BLACK) 3-037-020-11 KNOB (VOL) (WHITE) (AEP) 3-037-027-01 GEAR (A), TUNING CAPACITOR 3-037-028-01 HOLDER, LED 3-037-032-01 GEAR (B), TUNI
35、NG CAPACITOR 3-037-033-01 SPRING (GEAR) 3-037-523-01 PIN (TUNING CAPACITOR) 3-364-941-11 SCREW (+B) (2.6X5), NYLOK 3-880-990-00 SCREW (1.7X3),FLAT,(+) SPECIAL BPF11-236-839-11 FILTER, BAND PASS C11-163-133-00 CERAMIC CHIP470PF5%50V C21-163-096-00 CERAMIC CHIP13PF5%50V C31-163-222-11 CERAMIC CHIP5PF0
36、.25PF 50V C51-163-235-11 CERAMIC CHIP22PF5%50V C61-163-103-00 CERAMIC CHIP27PF5%50V (EXCEPT EA) C61-163-105-00 CERAMIC CHIP33PF5%50V (EA) C71-104-732-11 FILM390PF5%100V C81-136-682-11 FILM0.0039uF5%100V C91-163-103-00 CERAMIC CHIP27PF5%50V C111-163-097-00 CERAMIC CHIP15PF5%50V C131-163-021-91 CERAMI
37、C CHIP0.01uF10%50V C141-124-589-11 ELECT47uF20%16V C151-163-031-11 CERAMIC CHIP0.01uF50V C161-126-964-11 ELECT10uF20%50V C181-163-031-11 CERAMIC CHIP0.01uF50V C191-126-963-11 ELECT4.7uF20%50V C201-126-960-11 ELECT1uF20%50V C211-126-964-11 ELECT10uF20%50V C221-163-037-11 CERAMIC CHIP0.022uF10%25V C23
38、1-163-035-00 CERAMIC CHIP0.047uF50V C241-163-021-91 CERAMIC CHIP0.01uF10%50V C251-164-346-11 CERAMIC CHIP1uF16V C261-126-966-11 ELECT33uF20%16V C271-163-033-91 CERAMIC CHIP0.022uF50V C281-164-346-11 CERAMIC CHIP1uF16V C291-126-925-11 ELECT470uF20%10V C301-163-009-11 CERAMIC CHIP0.001uF10%50V C311-16
39、4-346-11 CERAMIC CHIP1uF16V C321-126-925-11 ELECT470uF20%10V C421-163-251-11 CERAMIC CHIP100PF5%50V CF11-567-670-11 FILTER, CERAMIC CF21-577-588-11 FILTER, CERAMIC CF31-577-573-11 FILTER, CERAMIC CT11-141-612-11 CAP, VER (MW TRACKING) CT21-141-612-11 CAP, VER (FM TRACKING) CT31-141-612-11 CAP, VER (
40、FM FREQUENCY COVERAGE) CT41-141-612-11 CAP, VER (MW FREQUENCY COVERAGE) CT51-141-601-21 CAP, ADJ (SW TRACKING) CT61-141-601-21 CAP, ADJ (SW FREQUENCY COVERAGE) CV11-141-612-11 CAP, VER (TUNING) CV21-141-612-11 CAP, VER (TUNING) CV31-141-612-11 CAP, VER (TUNING) CV41-141-612-11 CAP, VER (TUNING) D18-
41、719-991-33 DIODE 1SS133T-77 D28-719-991-33 DIODE 1SS133T-77 D38-719-069-94 LED TLR124 (TUNE) IC18-752-037-02 IC CXA1019S J11-770-666-11 JACK () J21-580-681-21 JACK,DC(POLARITY UNIFIED TYPE) (DC IN 4.5V) L11-402-568-31 ANTENNA, FERRITE-ROD (MW) (MW TRACKING) RadioFans.CN 14 Ref. No.Part No.Descriptio
42、nRemark MAIN ICF-403S 9-927-158-11 Sony Corporation Personal Audio Company 99H0261-1 Printed in Japan 1999.8 Published by General Engineering Dept. L21-424-529-21 COIL (SW TRACKING) * L31-422-320-11 COIL, AIR-CORE (FM TRACKING) L41-422-131-00 COIL, FM OSCILLATION (FM FREQUENCY COVERAGE) (EXCEPT EA)
43、L41-459-954-21 COIL (WITH CORE) (FM FREQUENCY COVERAGE) (EA) L51-406-092-31 COIL, OSC (MW) (MW FREQUENCY COVERAGE) L61-406-093-31 COIL, OSC (SW) (SW FREQUENCY COVERAGE) Q18-729-027-53 TRANSISTOR DTC124TKA-T146 R11-216-049-91 RES,CHIP1K5%1/10W R21-216-061-00 METAL CHIP3.3K5%1/10W (EXCEPT EA) R31-216-
44、071-00 METAL CHIP8.2K5%1/10W R51-216-057-00 METAL CHIP2.2K5%1/10W R61-216-045-00 METAL CHIP6805%1/10W R91-216-065-91 RES,CHIP4.7K5%1/10W R101-216-057-00 METAL CHIP2.2K5%1/10W R111-216-017-91 RES,CHIP475%1/10W R131-216-049-91 RES,CHIP1K5%1/10W RV11-241-555-11 RES, VAR, CARBON 50K (POWER/VOL) S11-771-
45、748-11 SWITCH, SLIDE (FM, MW, SW) S21-552-370-00 SWITCH, SLIDE (TONE) T11-404-790-11 TRANSFORMER, IF (AM IF) * MISCELLANEOUS * * 521-674-032-11 RACK RETAINER BOARD ANT11-501-222-81 ANTENNA, TELESCOPIC (FM, SW) D38-719-069-94 LEDTLR124 (TUNE) SP11-529-451-11 SPEAKER (7.7cm) * ACCESSORIES & PACKING MATERIALS * 3-867-127-11 MANUAL, INSTRUCTION (ENGLISH, FRENCH, GERMAN, SPANISH, DUTCH, ITALIAN, PORTUGUESE) (AEP) 3-867-127-21 MANUAL, INSTRUCTION (ENGLISH, FRENCH, SPANISH, POLISH, HUNGARIAN, RUSSIAN, CHINESE, ARABIC) (7AEP,AUS,EA) RadioFans.CN
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