sony_icf-1000l 电路图 维修原理图.pdf

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1、Ver 1.0 2000.07 ICF-1000L SERVICE MANUAL FM/SW/MW/LW 4 BAND RADIO SPECIFICATIONS AEP Model UK Model Frequency range: FM: 87.5 108.0 MHz SW: 5.95 18 MHz MW: 530 1 605 kHz LW: 153 255 kHz Speaker: Approx. 10.2 cm (4 18 inches) dia. 8 Power output: 1W (at 10% harmonic distortion) Output: v jack ( 3.5 m

2、m minijack) Power requirements: With the supplied AC power cord: 220 230 V AC, 50 Hz With four R6 (size AA) batteries: 6V DC Dimensions: Approx. 299 x 139.5 x 83.2 mm (w/h/d) (11 78 x 5 12 x 3 38 inches) incl. projecting parts and control. Mass: Approx. 1100 g (2 lb 7 oz) incl. batteries Supplied ac

3、cessory: AC power cord(1) Design and specifications are subject to change without notice. RadioFans.CN 2 TABLE OF CONTENTS Specifications . 1 1.GENERAL Choosing Power Sources . 3 Operating the Radio Manual Tuning . 3 2.DISASSEMBLY 2-1. Cabinet (Rear). 4 2-2. Power Board . 4 2-3. AC IN Board, AMP Boa

4、rd. 5 2-4. Main Board, Key Board. 5 2-5. Setting the Pointer . 6 3.ELECTRICAL ADJUSTMENT 3-1. MW Section . 7 3-2. LW Section . 7 3-3. SW Section . 7 3-4. FM Section . 7 4.DIAGRAMS 4-1. Block Diagram. 9 4-2. Printed Wiring Boards (1/2) .11 4-3. Printed Wiring Boards (2/2) . 13 4-4. Schematic Diagrams

5、 . 15 5.EXPLODED VIEWS 5-1. Rear Cabinet Section . 18 5-2. Front Cabinet Section . 19 5-3. Chassis Section . 20 6.ELECTRICAL PARTS LIST. 21 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAF

6、E OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. HOW TO CHANGE THE CERAMIC FILTER This model is used three ceramic filters of CF2, CF3 and CF4. You must use same type of color marked ceramic filters in order

7、to meet same specifications. Therefore, the ceramic filter must change three pieces together since its supply three pieces in package as a spare parts. red blue orange black white white/white yellow 10.70MHz 10.67MHz 10.73MHz 10.64MHz 10.76MHz 10.75MHz 10.79MHz Mark Center frequency markmark white/w

8、hite only CF2 CF3 CF4 markmark CF3 CF2 CF4 Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. RadioFans.CN 3 SECTION 1 GENERAL This section is extracted from instruction manual. RadioFans.CN 4 SECT

9、ION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (REAR) 2-2. POWER BOARD r The equipment can be remo ved using the following pr ocedure . 2 Screws (+BTP 3x20) 1 3 3 Cabinet (front) Cabinet (rear) Lid, Battery case 3 Screws (+BTP 2.6x10) 1 Screw (+B

10、TP 2.6x8) 2 Remove solder 4 AC IN board (CN405) 5 AMP board (CN601) 7 6 Cabinet (front) Blue Power board 8 Button (power) CN401 Operation switch (S401) Cabinet (rear) z Cautions during assembly Align the operation switch (S401) with the groove of button (power). AMP board Cabinet (rear) Power boardA

11、C IN board Main board, Key board Set RadioFans.CN 5 2-3. AC IN BOARD, AMP BOARD 2-4. MAIN BOARD, KEY BOARD 4 Screw (+BTP 3x20) Holder AC IN board 1 Screws (+BTP 2.6x10) 5 Claws 6 3 2 7 CN602 AMP board Cabinet (front) 5 Screws (+BTP 2.6x6) 3 Screws (+BTP 3x10) 9 Screws (+BTP 3x10) 9 Screws (+BTP 3x10

12、) 8 Remove solder 7 CN201 q; Claw q; Claw 1 Knob (tone) 1 Knob (tuning) q; Claws 6 qa 4 2 Wind up thread, and pull it up Thread Knob (band) key board Main board Chassis Cabinet (front) RadioFans.CN 6 3 4 2 A 1 Rack (pointer) Gear, VOL Pointer Pointer Rack (pointer) Scribed line Chassis Drum (A) Drum

13、 (B) 2-5. SETTING THE POINTER 1 Turn the drum (B) in the direction of A until it stopped. 2 Insert the rack (pointer) into the chassis groove. 3 Install the pointer. 4 Slid the pointer and align it with the groove on the scribed Gear , VOL enga ges with drum (A) like a figure. RadioFans.CN 7 SECTION

14、 3 ELECTRICAL ADJUSTMENTS Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. MW IF ADJUSTMENT Adjust for a maximum reading on level meter. T1455kHz MW FREQUENCY COVERAGE ADJUSTMENT Adjust for a

15、 maximum reading on level meter. L4520kHz CT41,650kHz MW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L2-1600kHz CT11,400kHz 3-1. MW SECTION BAND switch : MW Put the lead-wire antenna close to the set. AM RF signal generator 400Hz, 30% AM modulation Output level: as low as possib

16、le 16 set v jack (EPJ401) level meter Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. 3-2. LW SECTION BAND switch : LW Put the lead-wire antenna close to the set. AM RF signal generator 400H

17、z, 30% AM modulation Output level: as low as possible 16 set v jack (EPJ401) level meter Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. SW FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum

18、 reading on level meter. L55.8MHz CT518.5MHz SW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L35.8MHz CT318.5MHz 3-3. SW SECTION BAND switch : SW telescopic antenna terminal 12 pF AM RF signal generator 400Hz, 30% AM modulation Output level: as low as possible set 16 set v jack (

19、EPJ401) level meter 3-4. FM SECTION BAND switch : FM telescopic antenna terminal 0.01F FM RF signal generator 400Hz, 30% FM modulation frequency deviation 22.5kHz Output level: as low as possible set 16 set v jack (EPJ401) level meter LW FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on

20、level meter. CT6145kHz 265kHz LW TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L2-2160kHz CT2240kHz RadioFans.CN 8 Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. FM FREQU

21、ENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L986.5MHz CT8109.5MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L7, L886.5MHz CT7109.5MHz Connecting Digital Voltmeter MAIN board (Conductor side) FM VT VOLTAGE ADJUSTMENT Frequency Display86.5MHz Reading

22、 on Digital Voltmeter Adjustment value : 1.0V Standard value : 0.9 1.1V Adjustment PartRV204 SW TRACKING ADJUSTMENT L2-2 LW TRACKING ADJUSTMENT MW FREQUENCY COVERAGE ADJUSTMENT CT6 LW FREQUENCY COVERAGE ADJUSTMENT RV204 FM VT VOLTAGE ADJUSTMENT FM FREQUENCY COVERAGE ADJUSTMENT T1 MW IF ADJUSTMENT FM

23、 TRACKING ADJUSTMENT MAIN BOARD (Component side) SW FREQUENCY COVERAGE ADJUSTMENT L2-1 MW TRACKING ADJUSTMENT CT1 MW TRACKING ADJUSTMENT CT2 LW TRACKING ADJUSTMENT TP2 (VT) (conductor side) L7, L8, CT7 L4, CT4 CT5, L5 L3 CT3 L9 CT8 Adjustment Location : Main board R9 C207 IC204 4 51 3 R4 R214 R215 R

24、3 C12 C13 C14 D202 C15 D2 R201 JC18 JC19 JC20 RV202 3 2 L8 L7 TP2 (VT) FM1 JW9 JW10 JW11 JW12 JW1 CT7 digital voltmeter Main board TP2 (VT) RadioFans.CN 9 10 ICF-1000L 4-1. BLOCK DIAGRAM SECTION 4 DIAGRAMS MW ANT LW ANT SW ANT FM MW LW SW SW LW MW FM FM MW LW SW SW LW MW FM L2-1, CT1 L2-2, CT2 L3, C

25、T3 SW OSC AM FE FM SW DET FM BPF FM FE FM OSC L5, CT5 MW/LW OSC CT4, L4 B+ CT6 S1-3 TUNING CV1-1 TUNING CV1-2S1-5 S1-7 S1-4 S1-6 (LW) AM ANT FM ANT FM IF TUNING METER LPF CONT TONE MUTE MUTE DRIVE AM IF DET/AGC FM RF FM OSC D2, 3 L7,L8, L9, CT7, CT8 BPF1 Q1 ANT1 FM/SW TELESCOPIC ANTENNA 6 11 13 15 2

26、4 108 CF2 10.7MHz CF3 10.7MHz CF5CF1 455kHz 18 20 17 3 CF4 10.7MHz Q6-8 Q502, 503 Q501 Q504 TONE RV501 PON 3V S1-1 (LW/SW) RV502 VOLUME IC1 FM/AM FRONT-END IF, DET PON 3V S1-1 (FM) Q9 Q202 D201 D6 KI/02KI/06 KI/04 KI3 171 14 19 KI/05 20 KI/07 2 KI/01 16 IC201 KEY IN CONTROLIC202 IC202 IC202 IC202 13

27、 12 IC205 SWITCH RV202 FM1 12 1110 RV203 FM2 6 98 RV201 FM3 RV204 FM VT VOLTAGE 5 34 RV205 (FM TUNING) FM3 FM2 FM1 KI011 KI112 KI213 XIN7 XOUT8 CN201 POWER CONT POWER CONT ON/OFF DRIVE Q102, 103 PON 6V 3V TU 6V Q101 RIPPLE FILTER Q10 35 2 DC/DC CONV CONT IC101 32 3V REG IC204 52 911 IC601 POWER AMP

28、VT D301 TUNE FM3 SW303 FM2 SW302 FM1 SW301 FM3 D303 FM2 D304 FM1 D302 MANUAL SW304 FM1 FM2 FM3 KEY BOARD MAIN BOARD X201 3.68MHz PON 6V Q201 3V Q203 PON 3V EPJ401 SP1 SPEAKER S401 D401-404 OPERATION STANDBYON PON 6V 6V D101 ACJ401 AC IN T401 POWER TRANSFORMER POWER BOARD AC IN BOARD AMP BOARD 02 AM

29、OSC T1 455kHz 5 7 9 11 2 1 14 13 CT4, L4 MW FREQUENCY COVERAGE CT1, L2-1 MW TRACKING T1 MW IF CT6 LW FREQUENCY COVERAGE CT2, L2-2 LW TRACKING CT5, L5 SW FREQUENCY COVERAGE CT3, L3 SW TRACKING CT8, L9 FM FREQUENCY COVERAGE CT7, L7, L8 FM TRACKING Signal path : MW : FM DRY BATTERY SIZE AA (IEC DESIGNA

30、TION R6) 4PCS, 6V v CN405 CN401 CN602 CN601 RadioFans.CN 11 12 ICF-1000L 4-2. PRINTED WIRING BOARDS (1/2) D401D-5 D402C-5 D403C-5 D404D-5 IC601D-2 Ref. No.Location z Semiconductor Location Note: X : parts extracted from the component side. : Pattern from the side which enables seeing. 02 AC IN BOARD

31、 AMP BOARD POWER BOARD 2345678 A 1 B C D E 11 (11) 1-678-893- 11 (11) 1-678-892- 11 (11) 1-678-894- ACJ401 - AC IN T401 POWER TRANSFORMER A MAIN BOARD (Page 14) B MAIN BOARD (Page 13) C609 C610 C612 C611 C404 R606 R604 R603 R601 R607 R605 R403 R402 R405 R404 R401 R602 C604 C607 C401 C407 C403 C408 D

32、404 D401 D403 D402 1 CN401 JW404 JW403 JW402 JW401 C402 DRY BATTERY SIZE AA (IEC DESIGNATION R6) 4PCS, 6V C405 C406 L401 SP1 SPEAKER + + EPJ401 v S401 OPERATION STANDBY R ON CN602 2 1 YEL YEL BLU CN601 4 1 C605 C602 C603 C606 C601 C608 IC601 3 2 1 6 5 4 7 8 9 10 11 12 3 CN405 YEL 3 2 1 YEL RadioFans

33、.CN 13 14 ICF-1000L 4-3. PRINTED WIRING BOARDS (2/2) Note: X : parts extracted from the component side. f: internal component. : Pattern from the side which enables seeing. D1C-7 D2E-6 D3E-5 D5F-4 D6B-6 D101G-3 D201B-10 D202D-7 D203G-4 D301D-10 D302G-10 D303E-10 D304F-10 IC1F-5 IC101G-3 IC201C-9 IC2

34、02B-9 IC204E-7 IC205B-8 Q1B-7 Q3F-6 Q4F-6 Q5G-6 Q6G-6 Q7F-6 Q8F-6 Q9B-5 Q10F-7 Q101G-3 Q102G-4 Q103G-4 Q201C-10 Q202B-10 Q203C-8 Q501E-3 Q502E-2 Q503F-2 Q504F-2 Ref. No.Location z Semiconductor Location 02 R303 C209 C208 C202 JC301 JC302 JC303 R202 R204 R206 R205 C205 R203 R9 R16 R17 R305 R306 R1 R3

35、02 R301 C203 C204 C206 C20 C207 C303 C304 C301 R304 R307 C302 C3 C1 L1 C2 Q201 Q202 Q1 Q203 D302, SW301 FM1 D304, SW302 FM2 D303, SW303 FM3 D301, SW304 MANUAL KEY BOARD MAIN BOARD SW301 SW302 11 (11) 1-678-891- 11 (11) 1-678-890- 2345678910 A 1 B C D E F G 1 5 9 15 9 CN201 A POWER BOARD CN401 (Page

36、11) B AMP BOARD CN602 (Page 11) B C E Q10 BLU JW20 JW19 JW18 JW17 JC30 IC204 4 51 3 R221 JC3 R220 R219 R218 R209 R210 R208 R212 R211 R213 R10 R8 R14 R12 R6 R4 R214 R215 R3 R2 R13 L10 L6 R509 R513 R19 C106 C103 C506 C21 C12 C39 C6 C501 C44 C32 C509 C25 C26 C45 R18 R102 R105 R106 R101 R216 D203 D5 R10

37、4 R501 R20 R505R508 R510 R512 R511 R502 R503R506 R507 R515 R514 R103 R107 L101 R21 C31 C42 C503 C507 C508 C504 C104 C43 D101 C30 C29 C35C37 C13 C14 C17 C16 D3 D202 R5 C15 C38 D2 C4 C5JC12 R201 JC18 JC14JC15JC16 JC17 JC19 JC25 JC33 JC26 JC29 JC23 JC22 JC21 JC13 JC20 JC6 JC8JC7 JC24 JC31 JC32 C41 C201

38、 JC28 JC27 JC11 JC10 JC4 JC2 JC1 Q5 Q8 Q6 Q103Q102 Q7 Q3 Q504 Q502 Q503 Q501 Q4 Q9 ECB Q101L102 R207 1 5 78 10 14 IC202 BLU GRN CT2 CT1 CT5 L5 AF GND T1 CF5 CF3 CF2 CF1 FM ANT 1 5 1011 15 20 IC201 1 5 7 8 10 14 IC205 C27 C36 C28 C24 C23 C22 C105 C107C101 RV205 (FM TUNING) RV202RV203RV201 RV501 TONE

39、RV502 VOLUME RV204 1 1 2 3 4 5 15 16 20 25 30 IC1 R11 IC101 1 3 4 5 312 L8 L7 TP2 (VT) C9 CT6 C8 C11 C10 C7 FM/U t MW/M t LW/K t SW/K S1 (BAND) L2-1 MW L2 MW/LW FERRITE-ROD ANTENNA L2-2 LW FM PRESET S1-4 S1-3 S1-6S1-7 S1-1S1-2S1-8S1-5 FM1FM2FM3 WHT WHT RED CLEAR CLEAR RED BLK BLU GRN BLK JW2 JW1 JW4

40、 JW6 JW7 CT3 L3 JW3 JW9 JW10 JW11 JW12 JW13 JW5 JW14 JW15 JW16 L4 MW/LW OSC CT4 CV1-2CV1-1 JW22 JW21 CV1 TUNING CF4 L9 CT8 CT7 RV502 RV501 JW25 JW23 ANT1 FM/SW TELESCOPIC ANTENNA X201 JW24 BPF1 D201 D1 D6 C19 ECB ECB ECB ECB ECB BCE BCE BCE BCE BCE BCEBCE ECB ECB ECB ECBECB D301 D303 D304 D302 Radio

41、Fans.CN 15 17 16 ICF-1000L 4-4. SCHEMATIC DIAGRAMS Note: 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. f: internal component. Note: The components identi

42、fied by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. : B+ Line. H : adjustment for repair. Power voltage is dc 6 V and fed with regulated dc power supply from battery terminal. Voltages and waveforms are dc with respect to ground under no-signal

43、 (detuned) conditions. no mark : FM () : MW/LW/SW 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 numbe

44、rs refer to waveforms. Signal path. F: FM f: MW z Waveform 1 Q101 C (Band : FM) VOLT/DIV : 5 V AC TIME/DIV : 1 msec 12 Vp-p RadioFans.CN 18 SECTION 5 EXPLODED VIEWS NOTE : -XX, -X mean standardized parts, so they may have some difference from the original one. Color indication of Appearance Parts Ex

45、ample : 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 ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Hardw

46、are (# 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 5-1. REAR CABINET SECTION #4 #1 #7 #7 1 2 3 4 5 6 7 8 8 ANT1 13-047-918-01 CABINET (REAR)(GRAY) 13-047-918-11 CABINET (REAR)(BROWN) 23-047-934-01 TERMINAL (+/-), BATTERY 39-911-815