sony_icf-sw35 电路图 维修原理图.pdf

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1、 1 SERVICE MANUALUS Model Canadian Model AEP Model E Model ICF-SW35 FM STEREO/SW/MW/LW PLL SYNTHESIZED RECEIVER Circuit system FM: Super heterodyne LW/MW/SW: Dual conversion super heterodyne Frequency range FM: 76.00 - 108.00 MHz 87.50 - 108.00 MHz*1 SW: 2250 - 26100 kHz*2 3850 - 26100 kHz*3 MW: 530

2、 - 1710 kHz 530 - 1620 kHz LW: 150 - 285 kHz Speaker Approx. 66 mm (2 1/8 in.) diameter, 8 Ohms Maximum output 240 mW (at 10 % harmonic distortion) Output i (headphones) jack (3.5 mm stereo mini jack) 16 Ohms Power requirements DC 4.5 V, three R6 (size AA) batteries External power source DC IN 4.5 V

3、 Battery Life (approximate hours) Sony R6Sony LR6 (size AA)alkaline (size AA) FM reception1746 SW reception1233 LW/MW reception1233 SPECIFICATIONS Dimensions Approx. 168 106 35 mm (W H D) (6 5/8 4 1/4 1 7/16 in.) incl. projecting parts Mass Approx. 405 g (14.3 oz) incl. batteries Supplied Accessorie

4、s Carrying case (1) Short wave guide (1) Design and specifications are subject to change without notice. The AC power adaptors operating voltage varies depending upon the country in which it is sold. Buy the AC power adaptor in the country you intend to use it. Your Sony dealer may not handle all of

5、 the above listed optional accessories. Please ask your dealer for detailed information on the optional accessories available in your country. *1 Italy, Saudi Arabia and Malaysia *2 Countries except for Italy *3 Italy only Ver 1.0 2000. 03 RadioFans.CN 2 Notes on Chip Component Replacement Never reu

6、se a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. TABLE OF CONTENTS 1. GENERAL Operating the Radio.3 Setting the Standby Time . 5 Setting the Sleep Timer .5 Using Other Functions.5 2. DISASSEMBLY 2-1. Cabinet (Rear) .6 2-2. Main Board .6 2-3

7、. Micon Board .7 3. ELECTRICAL ADJUSTMENTS FM Section . 8 SW/MW/LW Section.8 FM VCO Adjustment.9 4. DIAGRAMS 4-1. IC Pin Description.10 4-2. Block Diagram . 11 4-3. Printed Wiring Board Main Section . 13 4-4. Schematic Diagram Main Section .15 4-5. Printed Wiring Board Micon Section . 17 4-6. Schema

8、tic Diagram Micon Section .19 5. EXPLODED VIEW 5-1. Cabinet Section .22 6. ELECTRICAL PARTS LIST.23 RadioFans.CN 3 SECTION 1 GENERAL This section is extracted from instruction manual. RadioFans.CN 4 RadioFans.CN 5 RadioFans.CN 6 Note : Follow the disassembly procedure in the numerical order given. 2

9、-1. CABINET (REAR) 2-2. MAIN BOARD SECTION 2 DISASSEMBLY 1 P 3x14 5 cabinet (rear) 2 P 3x14 4 claw 3 claws 2 P 3x14 1 Removal the solder. 6 MAIN board 5 CN1 3 claw 4 claw RadioFans.CN 7 2-3. MICON BOARD 1 BTP 2x8 2 BTP 2x8 3 MICON board RadioFans.CN 8 FM SECTION 0 dB = 1 V Setting: BAND switch: FM V

10、OLUME: MAX ATT: OFF TONE: MUSIC SECTION 3 ELECTRICAL ADJUSTMENTS telescopic antenna terminal 0.01F FM RF signal generator 400Hz, 30% FM modulation frequency deviation 22.5kHz Output level: as low as possible set SW/MW/LW SECTION Setting: BAND switch: SW or MW or LW VOLUME: MAX ATT: OFF TONE: MUSIC (

11、SW) telescopic antenna terminal 10F AM RF signal generator 400Hz, 30% AM modulation Output level: as low as possible set (MW/LW) Connecting Level Meter (FM, SW, MW and LW) Put the lead-wire antenna close to the set. AM RF signal generator 400Hz, 30% AM modulation Output level: as low as possible i j

12、ack (J1) set 16 level meter (range: 0.55 V ac) Connecting Digital Voltmeter (FM, SW, MW and LW) Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. digital voltmeter TP (VT) AM IF ADJUSTMENT Adj

13、ust for a maximum reading on level meter. Frequency Display11,800 kHz Adjustment PartT1, T4 LW FREQUENCY COVERAGE CHECK Frequency Display150 kHz Reading on Digital voltmeter1.0 - 1.3 V Adjustment Part SW FREQUENCY COVERAGE CHECK Frequency Display26,100 kHz Reading on Digital voltmeter8.0 - 9.0 V Adj

14、ustment Part FM FREQUENCY COVERAGE CHECK Frequency Display76 MHz108 MHz Reading on Digital voltmeter2.8 - 4.0 V9.5 - 11.0 V Adjustment Part FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. Frequency Display76 MHz108 MHz Adjustment PartL11CT1 Adjustment Location: See page 9. RadioF

15、ans.CN 9 C70 JC8 C66 C59 C67 C62 C54 L8 L12 D10 L9 L10 D7 D5 D3 L7JC3 L3 L4 D6 D11 L17 C2 C45 C55 C60 C65C68 C73 R56 R85 C56 R53 R46 C47 C49 C53 C52 L16 X1 L15 R59 R55 R38 R35 R52 R43 R49 R50 R48 R45 C44 C39 C17 C21 R1 R1 R9 R33 C35 R37 C32 R30 R25 R23 C18 R10C16 R11 R5R26 R7 R6 R4 C19 R47 C46 C36 R

16、54 R63 R62 R60 R61 C51 R51 C50 L14 D9 JC18 JC7 R42 R34 C48 R17 C22 C20 R44 C40 R14 R15 C12 L6L5 C10 C29 T2 C31 C8 C5 C7 R74 C28 C30 C9 C27 R24 C93 C90 C100 IC3 R75 C92 JW15 JW16 JW13 JW11 JW3 JW4 JW12 C91 D12 JC16 JC4 JC6 JC5 JC19 JC17 C26 R22 C25 C11 R8 C14 C13 C15 C38 C37 R36 C34 R29 C33 R28 R32 R

17、31 C43 C42 Q20 R41 R40 R39 C89 TP (D-D OUT) TP(10.25) TP (GND) TP (LCH) TP (B/R) TP (BEEP) R65 R83 R64 JC11 JW7 JW5 C74 CF4C57 C41 C58 RV2 JW8 JW10 Q6 Q23 Q24 Q19 Q5 Q17 Q4 Q3 Q8 Q7 Q11 Q12 Q15 Q9 Q13 Q29 Q28 Q10 Q14 Q36 Q35 D8 Q18 D4 B E C B E C B E C B E C B E C B 1 1 2 5 6 9 10 15 17 16 18 4 8 5

18、E C B E C G D S B E B B B E E CC B E C B B E C G 1 15 1 5 10 16 20 25 30 3 2 C S D D S G G D S CN1 B E C B E B E B C C C B E C L11 L13 CT1 BPF1 TP (GND) IC1 CF2 C64 TP (VT) T3 S G B E C D TP (VCOL) TP (H/L) TP (VCOH) MW/L TP (POWER) TP(RF GND) TP (AGC) R TP (VT) main board (conductor side) FM VCO AD

19、JUSTMENT Connecting Frequency counter telescopic antenna terminal 0.01F FM RF signal generator 98MHz, non-modulation Output level: 0.1v(100dB) set 33 k frequency counter 1F/50V IC1 pin7 IC1 pin4 FM VCO ADJUSTMENT Reading on Frequency counter76 kHz 200 Hz Adjustment PartRV2 Adjustment Location: TP (V

20、T) IC1 IC3 IC2 1 1 17 2 18 4 8 4 18 5 1 8 1516 16 9 30 CN1 G B R N J1 S1 T1 T4 S2 RV2 L11 CT1 ANT1 FM/SW TELESCOPIC ANTENNA ANT2 MW/LW FERRITE-ROD ANTENNA (CONDUCTOR SIDE) FM TRACKING ADJUSTMENTAM IF ADJUSTMENT FM VCO ADJUSTMENT main board (component side) RadioFans.CN 10 SECTION 4 DIAGRAMS 4-1. IC

21、PIN DESCRIPTION IC201 uPD17072GB-017-1A7 (SYSTEM CONTROL, LCD DRIVER) Pin No.Pin NameI/OPin Description 1CSOEEPROM CS control output 2POWEROPower supply (for signal ) start output H: Radio ON L: Radio OFF 3BAR/RODOAntenna switch output H: BAR ANTENNA L: ROD ANTENNA 4MUTEOMUTE output H: MUTE OFF L: M

22、UTE ON 5AM/FMOBand switch signal output H: SW, MW, LW L: FM 6 9KS0 3OKey source output 10 13KR0 3IKey return input 14INITIALO9K/10K read output 15NORMAL/FINEIFrequency step switch input H: FINE L: NORMAL 16H/LOSW filter switch signal output H: SW L: FM, MW. LW 1710.25OAttenator output 18GNDGND 19EOO

23、Tuner PLL error output 20VCOL (LW/MW/SW)IVCO (SW/MW/LW band) input 21VCOH (FM)IVCO (FM band) input 22REG0Capacitor terminal (regulator circuit) 23VDDPower supply terminal (+2.7 V) 24XOUTOOscillation output (75 kHz) 25XINIOscillation input (75 kHz) 26REG1Capacitor terminal (regulator circuit) 27REGLC

24、D0LCD driving power supply terminal 28, 29CAPLCD0, 1LCD driving power supply terminal 30REGLCD1LCD driving power supply terminal 31 34COM0 3OLCD drive common output 35 49LCD0 14OLCD drive segment output 50, 51VDET1, 2IReducing voltage information input 52BEEPOBeep output 53TUNEIReceive information i

25、nput 54HOLDIHold input 55SCKOSerial clock output 56DI/DOI/OSerial data input/output RadioFans.CN 4-2. BLOCK DIAGRAM 11 12 ICF-SW35RadioFans.CN ICF-SW35 13 14 1 A B C D E F G H 234567891011121314 JC13 C102 C78 C80 C81 C86 C87 GRY C69 C70 R58 JC8 C66 C59 C67 C62 C54 C23 L8 L12 D10 L9 L10 D7 D5 D3 L7JC

26、3 L3L2 L21 L1 D18 L4 D2 D6 D11 L17 C24 C45 C55 C60 C61 C65C68 C73 R56 C82 C75 C76 C79 R71 R57 Q21 Q22 R85 C56 R53 R46 C47 C49 C53 C52 L16 X1 L15 R59 R55 R38 R35 R52 R43 R49 R50 R48 R45 C44 C39 C17 C21 R13 R12 R9 R33 C35 R37 C32 R30 R25 R23 C18 R10C16 R11 R5R26 R7 R6 R4 R21 R2 Q16 R20 C3 C19 R47 C46

27、C36 R54 R63 R62 C85 C72 C71 C101 C77 R67 R70 R66 RV3 R60 R61 C51 R51 C50 L14 D9 JC18 JC7 R42 R34 C48 R17 R16 C22 C20 R44 C40 R14 R15 C12 L6L5 C10 C29 T2 C31 C8 C5 C7 R27 R18 JC21 C1 JC1 JC2 C4 R1 R84 R72 R73 GRY C84 C88 R82 R74 C28 C30 C9 C27 R24 C93 C90 C100 IC3 R80 WHT RED JC22 R75 C92 JW15 JW16 J

28、W13 JW11 JW3 JW4 JW12 C91 R81 D16 D15 11 (11)1-677-230- D12 JC16 JC4 JC6 JC5 JC19 JC17 C6 JW1 JW2 GRN BLK RED R19 R3 C2 C26 R22 C25 C11 R8 C14 C13 C15 C38 C37 R36 C34 R29 C33 R28 R32 R31 C43 C42 Q20 R41 R40 R39 C89 TP (D-D OUT) TP(10.25) TP (GND) TP (LCH) TP (B/R) TP (BEEP) R65 R83 R64 JC9 JC10 Q25

29、JC11 JC20 JW6 JW7 JW5 JC15 R69 R68 C83 C96 R76 C E B C E B C97 C99 R77 R79 C98 R78 D14 C95 C94 D13 L18 C74 CF4C57 C41 C58 RV2 JW8 JW10 L19 JC12 JC14 Q26 Q6 Q23 Q24 Q19 Q5 Q17 Q4 Q3 Q8 Q7 Q1 Q2 Q11 D1 Q27 D17 Q32 Q34 Q12 Q15 Q9 Q13 Q29 Q28 Q10 Q14 Q36 Q35 D8 Q33 Q18 Q30 Q31 MAIN BOARD D4 04 16 15 9 1

30、0 1 5 8 C E B -2-1 S2MUSIC NEWS TONE NEWS.MUSIC -2-1 S1 S1 ON OFF ATT ON.OFF RV1 RV1 MIN MAX B E C B E C B E C B E C B E C B 1 1 2 5 6 9 10 15 17 16 18 4 8 5 E C B E C B E C B E C B BE E C B E C G D S B E C B B B E E CC B E C B B E E C G 1 15 1 5 10 16 20 25 30 3 2 C B E C B E C S D D S G G D S G N

31、C B E C + + SP1 SPEAKER L20 CN1 1 MICON BOARD CN201 B E C B E B E C B C E B E C B C E B E B C C C B E C T1 L11 L13 CT1 CF1 CF3 BPF1 TP (FM ANT) TP (GND) IC1 T4 CF2 C63C64 TP (TUNE) TP (GND) TP (AM/FM) TP (VT) T3 S G B E C D TP (VCOL) TP (H/L) TP (VCOH) ANT2 MW/LW FERRITE-ROD ANTENNA JW14 TP (POWER)

32、TP(RF GND) J1 J2 DC IN 4.5V DRY BATTERY SIZE AA (IEC DESIGNATION R6) 3PCS, 4.5V TP (AGC) ANT1 FM/SW TELESCOPIC ANTENNA IC2 T5 w VOL R A MICON BOARD C238 i ! (US) 4-3. PRINTED WIRING BOARD MAIN SECTION Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are

33、not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. Note on Printed Wiring Boards: X : parts extracted from the component side. Y : parts extracted from the conductor side. f: internal component. b : Pattern from the side which ena

34、bles seeing. D13F-3 D14F-3 D15F-12 D16F-12 D17F-12 D18C-12 IC1C-5 IC2D-3 IC3F-10 Q1D-13 D1D-13 D2B-12 D3C-9 D4C-9 D5C-9 D6C-9 D7C-9 D8D-8 D9E-7 D10C-8 D11C-7 D12E-10 Semiconductor Location Ref. No.LocationRef. No.LocationRef. No.LocationRef. No.LocationRef. No.Location Q2D-12 Q3C-10 Q4C-9 Q5C-9 Q6C-

35、7 Q7D-11 Q8C-11 Q9D-11 Q10D-10 Q11D-11 Q12E-9 Q13E-9 Q14E-10 Q15E-10 Q16C-11 Q17D-9 Q18D-8 Q19D-8 Q20D-7 Q21C-4 Q22B-4 Q23D-7 Q24D-6 Q25D-4 Q26C-2 Q27E-12 Q28E-10 Q29E-10 Q30F-3 Q31F-3 Q32F-12 Q33F-12 Q34F-11 Q35E-8 Q36F-9 (Page 18) f: internal component. C : panel designation. U : B+ Line. H : adju

36、stment for repair. Power voltage is dc 4.5 V and fed with regulated dc power supply from battery terminal. Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM () : MW/LW : SW Signal path. F: FM f: MW/LW h: SW (Page 18) RadioFans.CN 15 16 ICF-SW35 4-4. SCHEMATIC DIA

37、GRAM MAIN SECTION Refer to page 21 for IC Block Diagrams. (Page 20) (Page 19) Q30 C Waveform 1 0.2sec/div0.1V/div 1.78MHz 4.4Vp-p RadioFans.CN ICF-SW35 17 18 1 A B C D E F G H I 234567891011 R210 R228 R212 R227 R213 R215 R216 R217 R218 R219 R222 R223 R224 R225 R226 R254 R257 R256 R255 C220 C221 C239

38、 C204 C205 JC220 JC206 JC205 JC219 JC223 JC217 C223 C225 C207 C229 C230 C226 R260 JC224 C203 C237 D207 JC218 C201 C224 R259 R253 R204 R205 R201 R206 R267 R207 R264 R265 C233 R268 B BE EB E C C C B D 56434550 55 15282520 114510 4240293035 E BE C C G S 15101520 R270 R266 R271 R269 C238 R252 R248 R246

39、R245 R247 R239 R235 R234 R236 R238 R240 R237 R243 R241 R244 R242 R250 R251 R249 R263 R262 R261 C232 C228 C227 C231 R272 R209 C236 IC205 IC203 IC204 C206 R208 R203R202 C222 R220 R221 C213 C212 C210 C211 C209 C208 JC204 JC211 JC207 JC216 JC210 JC209 JC202 JC201 JC212 JC213 JC203 JC208 JC215 JC214 C216

40、 IC202 IC201 R230 R231 R229 C215 R214 C214 R211 L202 L201 R232 JC221 JC222 R233 C217 C218 11 (11) D201 D202 D203 Q205 D206 D208 Q202 Q204 Q203 Q201 Q206 Q207 D204 04 S217 (9K/10K) 1-677-231- MICON BOARD C235 MAIN BOARD CN1 D205 (BACK LIGHT) CN201 9K 10K ON OFF FINE NORMAL NORMAL.FINE C234 S207 4 S20

41、6 5 S201 2 S202 1 S211 BAND S201,202,205-208 MEMORY PRESET PAGE S213,214 TUNE/SCAN/TIME SET S213 S214 S216 HOLD S219 LIGHT S203 SLEEP S204 ON/OFF S212 S218 ENTER/CLOCK S215 SW BAND S209 TIMER STANDBY /STANDBY TIME SET STANDBY MEMORY b S210 a 1 C202 2 5 6 9 10 15 16 17 18 S208 3 S205 MEMORY SCAN TP (

42、BAR/ROD) TP (KR2) TP (KS2) TP (KS1) TP (D-DOUT) TP (VT) TP (RF GND) TP (VCOL) TP (VCOH) TP (BATT) TP (POWER) TP (TUNER VDD) TP (KR3) TP (EA) TP (CE9) TP (10.25) TP (H/L) TP (TUNE) TP (BEEP) TP (KR1) TP (KR0) TP (KS0) TP (MUTE) TP (KS3) TP (AM/FM) 14 85 1 23 1 1 2 3 23 POWER LCD201 LIQUID CRYSTAL DIS

43、PLAY PANEL X201 1 D SG A MAIN BOARD IC1 (US) 21 Note on Printed Wiring Boards: X : parts extracted from the component side. Y : parts extracted from the conductor side. f: internal component. b : Pattern from the side which enables seeing. D201D-4 D202D-5 D203D-5 D204D-2 D205C-10 D206C-9 D207C-8 D20

44、8C-8 IC201C-5 IC202C-4 IC203C-9 IC204C-8 IC205C-8 Q201D-7 Q202D-7 Q203D-6 Q204D-7 Q205C-8 Q206B-9 Q207B-9 Semiconductor Location Ref. No.Location 4-5. PRINTED WIRING BOARD MICON SECTION (Page 14) (Page 13) RadioFans.CN 19 20 ICF-SW35 Note on Schematic Diagram: All capacitors are in F unless otherwis

45、e 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. f: internal component. C : panel designation. U : B+ Line. H : adjustment for repair. Power voltage is dc 4.5 V and fed with regulated dc power su

46、pply from battery terminal. Voltage is dc with respect to ground under no-signal (detuned) condition. no mark : FM () : MW/LW : SW 4-6. SCHEMATIC DIAGRAM MICON SECTION Refer to page 21 for IC Block Diagrams. (Page 15) (Page 15) RadioFans.CN 21 22 GND 30 PLL LPF 29 NPX REG 28 VCO 27 FM DISCRI 26 MUTE 25 AM O