Kenwood-CV-301-HU-Service-Manual(1) 电路图 维修手册.pdf

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1、STEREO INTEGRATED AMPLIFIER/TUNER C-V301/V351 SERVICE MANUAL 1999-7/B51-5556-00 (K/K) 1653 70% Caution : No connection of ground line if disassemble the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others. ON/STANDBY PHONES INPUTTAPE 2 (MONITOR) VOLUME CONTROL DOWNUP AV

2、 CONTROL CERTER KC-2 CLOCK TIMER MODE RDS PTYDISPLAY TIMER SET S.DIRECTTA/NEWS/INFO. STEREODSP A.MEMOAUTOBAND TUNING PTY SELECT MODE MULTI.CONTROL LEVEL OPEN/CLOSE 623 624620 683681 J1682682680 609 ANTENNA AM FM 75 GND CONNECT WITH POWER AMPLIFIER SYSTEM CONTROL CDAUXTAPE 1/ MD ININRECPLAY TAPE 2 (M

3、ONITOR) RECPLAY MONITOR OUT VIDEO UNSWITCHED L R IN AUDIO FRONTRECPLAYSURROUND CENTER SUBWOOFER LD /DVD VCRDVD 6CH.INPUTDVD 6CH.INPUT J2 601 J3J2650678 J6J7J5 J123 J4 Indicator (B12-0311-04) Front glass (B10-2350-14) Knob (K29-7601-02) Panel (A60-1696-11) Lock terminal board (E70-0052-05) Phono jack

4、 (E63-0163-05) Phono jack (E63-1005-05) Metallic cabinet (A01-3431-01) Power cord busing (J42-0083-05) AC power cord * (E30-) Miniature phone jack (2P) (E11-0293-05) Phono jack (E63-0139-15)x3 Phono jack (E63-1084-05) AC outlet * (E03-) Knob (K29-6660-04) Knob (K29-6665-02) Knob (K29-6665-02) Phone

5、jack (E11-0280-05) Front glass (B10-2351-14) Knob (K29-7591-02) Rectangular receptacle (E58-0018-05) * Refer to parts list on page 25. RadioFans.CN 收音机爱 好者资料库 C-V301/V351 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS. 2 DISASSEMBLY FOR REPAIR.3 ADJUSTMENT.4 PC BOARD . 5 SCHEM

6、ATIC DIAGRAM . 11 EXPLODED VIEW .24 PARTS LIST.25 SPECIFICATIONS .Back cover Contents Batteries(R6/AA) (4) (C-V351) FM indoor antenna (1) (T90-0841-05) AM loop antenna (1) (T90-0833-05)Graphical Remote Control unit (1) (C-V351) (A70-1205-15) ON/STANDBY MUTE VOLUME ENTER Setup DVD/6ch Input Sound Spe

7、aker C D Sat. Tape1 Cable Reset VCR1 VCR2 L D T V ConfirmSet UpReturn Input Source Main Menu TapeA TapeB Tape1LDTunerCD VCR2VCR1TVSat.Cable Remote control unit (1) (C-V301) (A70-1306-05) Battery cover (A09-0378-08) Loop antenna stand (1) Batteries(R6/AA) (2) (C-V301) (Optional with the C-V301) Batte

8、ry cover (A09-1115-08) How to reset the microcomputer The microcomputer may malfunction (impossibility of operation, erroneous display, etc.) when the power cord is unplugged and plugged in again while the unit is in ON mode with the key pressed or due to other external causes. In this case, execute

9、 the procedure on the right to reset the microcomputer and return the unit to the normal condition. Unplug the power cord from the wall outlet. While holding the (ON/STANDBY) key depressed, plug the power cord into the wall outlet again. ?Resetting the microcomputer clears the memory you entered and

10、 returns it to the initial condition when the unit left the factory. Cautions Accessories RadioFans.CN 收音机爱 好者资料库 3 DISASSEMBLY FOR REPAIR C-V301/V351 1. Remove the 1 screw (1), Then pull the slider (2) till last 2. While raise the slider of left side, remove the slider from the bosses (3,4) 1 3 4 4

11、 4 4 4 4 2 x2 x2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

12、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

13、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RadioFans.CN 收音机爱 好者资料库 4 ADJUSTMENT C-V301/V351 No.ITEM INPUT SETTING OUTPUT SELECTOR TUNER/AMP SETTING ALIGNMENT POINTS ALIGN FORFIG. SELECTOR : FM 1 DISCRIMINATOR L31L32 (E, T only) (A) 98.0MHz 1kHz, 40kHz dev (E, T type) 60dB

14、u (ANT INPUT) Connect a DC voltmeter between port of CN2 AUTO 98.0MHz L31 (X05-)0V (a) (B)L32 (X05-) Minimum distortion 2 DISTORTION (STEREO) (C) 98.0MHz 1kHz, 40kHz dev pilot: 6kHz dev 60dBu (ANT INPUT) (B) AUTO (98.0MHz) IFT (W02-) Mininum distortion (a) ANTENNA AM FM 75 GND CONNECT WITH POWER AMP

15、LIFIER SYSTEM CONTROL CDAUXTAPE 1/ MD ININRECPLAYIN TAPE 2 (MONITOR) AUDIO FRONTRECRECPLAYPLAY MONITOR OUT SURROUND VIDEO CENTER SUBWOOFER UNSWITCHED LD /DVD VCR L R DVD 6CH.INPUTDVD 6CH.INPUT DIGITAL IN DIGITAL IN FM 50kHz AM 9kHz FM 100kHz AM 10kHz 50s75s DE- EMPHASIS CHANNEL SPACE Oscilloscope Di

16、stortion meter AC voltmeter Dummy antenna (B) (A) (C) (D) AG AG FM SG MPX AG FM SG AM SG (a) ERROR MESSAGE DISPLAYDESCRIPTION ERR 1Main u-com sub clock no output ERR 2Main u-com sub clock frequency NG ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

17、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

18、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ABDFHJCEGI 2 1 3 5 7 4 6 Refer to the schemat

19、ic diagram for the value of resistors and capacitors. PC BOARD (Component side view) 65 (X13-7562-70) KMOQSLNPRT 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD (Component side view) 7 8 UVXZABADWYAAAC 2 1 3 5 7 4 6 Refer to the schematic diagram for

20、the value of resistors and capacitors. PC BOARD (Component side view) 109 MODECARRIER MODULATION ANT INPUT FREQUENCYDEVIATION FM98MHz1kHzSTEREO 67.5kHz 7.5kHz(Pilot)60dB AM1000(999)kHz400HzMONO 30% MOD60dB GIFHKJMLONACEBD 2 1 3 5 7 4 6 R80 1K R81 1K R83 1K R82 1K 2 4 5 3 470P R84 10K 27P C82 22P C81

21、 + 10u16 C87 0.01 C93 7.2MHz X81 560 R94 1/4W COUNTER UNIVERSAL X OUT DO CL CE X IN DI BO1 CHARGE PUMP PHASE DETECTOR PROGRAMMABLE 1/16, 1/17 4bit SWALLOW COUNTER 12bit DIVIDER DATA SHIFT REGISTER LATCH DIVIDER REFERENCE 2 1 VSS PD AIN VDD NC AM IN FM IN IF IN NC UNLOCK DETECTOR AOUT 22 21 20 19 18

22、17 16 15 14 13 12 1 2 3 4 5 6 8 7 10 9 11 456kHz 7 BUFF 3 2 1 FM IFFM DET 4 L33 5 6 REGGND FM DRIVE TUNING AM BUFF LEVEL DET S-CURVE 30 OSC AM ALC 29 28 AM/ IF FM S METER DETIF COMP AM AGC AM RF.AGCMIX AMAM 27 25 26 DET 12 PHASE DET 8 9 10 11 SW AM/ FM VCC 13 14 15 DECODER UNTIBIRDIE VCO FF STEREO D

23、RIVE 24 23 22 21 MUTE PILOT FFFF TRIG SW STEREO 18 20 19 17 16 X31 C36 0.047 10u16 C35 + 10u16 C33 C34 0.01 C32 + C31 47u16 0.01 C37 33K R59 2.7K R32 5.6K 10u10 C38 + C30 0.047 R331u50 C40 + 0.47u50 C41 + 3K C42 2.2u35 + 47K R49 R34 8.2K 22P C45 R37 C44 0.047 + 0.47u50 C43 100u10 C46 + R38 33K 100P

24、C70 C47 1u50 C49 + R44 10u10 C52 R4310u10 R36 21 10uH L63 2P C68 L34 R41 2.2K 2K R40 R42 2K 1500P C50 C92 R85 1K C84 1000P R86 1K R88 1K 1K C86 1000P C85 100P C89 47u16 + 1K R87 R91 C90 2.2u50 + C91 0.022 100 1/4W R93 1.2K 12K R92 C96 + 47u16 C1 R1 220 1/4W R2 10K R69 220 R89R90 5.6K 150 1W R31 C48

25、L61 1uH C2 1u50 + L31 L32 BANDFREQ.VT FM LF HF 1.6V 7.8V AM 1.3VLF HF5.0V VT VOLTAGE 0.01 C2B I/F 100P R39 82K 4700P R35 39K 2.4K 2.2K L81 1uH L62 W52 R67 100K + + C51 2.2u50 + + 2.2u50 C57 8200P R47 L35 R45 R46 C58 8200P R48 L36 1K 1K 3.9K 3.9K W54 W55 W51 0.01 C61 150K- GND 4 GND3 GND2 1 ANT1 220

26、R16 L7 C17 2-6P 47P C16 3.9K R12 1-3P C22 470- R17 10P C21 8P C19 560K R18 0-100 33K R3 100K 10P C6 C7 5-10P0.1 C14 L3 L4 R2 R4 5P 1000P C10 680K-1.5M R5 100 R8 L6 680 R9 C15 27P C12 2P C11 C9 100 R19 OSC C23 100P 8 VCC IF-OUT 0.1 6 IFT 0.1 C13 7 VT5 R1 100K 3-7P C5 27P C3 L2 0-5P C4 15P C2 L1 27P C

27、1 R6 33K R7 33K C8 0-6P L5 1.5K C20 27P 10K R15 R14 10K 0-100 R11 C55 C56 2.2K C53 C54 MONO1 GND10 2 3 4 5 6 4 2 3 5 T.MUTE PLL-CE PLL-DO PLL-CLK PLL-DATA 9 8 7 Lch +15V -15V 15 13 14 11 12 SD DET-OUT S-LEVEL Rch STEREO 100K R52 0.1 C60 1K R53 10K R50 100 3.9K R51 R57 100 C59 100P R56 R55 8.2K R103

28、R105 R101 820 1K 1K R102 L62 L39-1351 W51,52, 54,55 YES 1000P 22P C67 2.2K W85 R15 R3 C3 0.01 CF1 R4 47 R9 0.01 C6 R10 2.2K 100 R5 10K R11 330 C7 0.01 680 R13 100 R12 3.3K R14 C8 330 0.01 R16 100 330 R17 R21 CF2 C5 0.01 R8 680 R22 10 R18 390680 R19 10 C9 0.01 0.01 C10 R7 220 W27 C64 0.033 47K R104 L

29、F: LOWEST FREQUENCY HF: HIGHEST FREQUENCY W76 R61 22K W13 W56 1M R70 2.2K R68 W6 C63 9P 0.033 C62 1M R62 R64 47K R63 15K R65 1.5K R66 10K W24 56,76 NO W6,13, 2-71 UNIT No. COUNTRY DESTINATION ABB. R61-66, 68,70 NO C62, 63 EUROPEE1 U.K.T20-51YES NO YES Q61- NO 65 YESL39-1352YESNO +7V+11V +11V +11V +1

30、1V +11V +11V +11V +8V +11V +8V+15V +15V +15V+15V+15V +8V +15V +15V +11V +11V +11V +11V 6P C66 +5V DT 15V 0.027 0.027 10 R20 1.8K B +B D81 PLL D31 Q32 D32 CN2 DISCRI Q31 Q81 FM +B VT AM/FM SYSTEM /MPX DISCRI ON:FM OFF:AM IC1: LA1836 IC2: LC72131 D1,2,32,61,62: 1SS133 or D31: RD8.2ES(B2) or D62 D61 HS

31、S104 HZS8.2N(B2) Rch TR3 : 2SC2413 KV1440 : SVC220 or : 2SK302 : 2SC2714 J2 FET1 TR2,3 TR1 D1-4 GND AM ANT FM 75 J1 OSC D4 TR2 D2 FET1 RF AMP FM FRONT END TR1 BUFFER OSC D1 D3 CN1 2/4 -E4 X11-A/5 Q34 Q33 Q102Q101 Q103 D101 Lch : 2SC4081(R,S) or 2SC4116(Y,GR) Q1,2,4,31-34,61,62 2SA1586(Y,GR) : 2SA157

32、6A(R,S) orQ3,64,81,103 : 2SD1757KQ101,102 D81: RD5.1ES(B2) or HZS5.1N(B2) D101: RD3.3ES(B2) or HZS3.3N(B2) D102: RD2.7ES(B2) or HZS2.7N(B2) D102 MUTE MUTE DRIVE S METER BUFFER BUFFER DET-OUT DET OUT:AMP DETECTOR:BUFFER IF AMP Q1 D1 Q2 D2 Q3 DISTORTION(ST)MIX Q4 Q61 Q65Q62 Q63 Q64 Q65: 2SK302(Y,GR) Q

33、63: 2SC2878(B) C-V301 GND LINE SIGNAL LINE B LINE B LINE IC2 IC1 (X05-468X-XX) A1 (W02-2584-05) C-V301/V351 (1/4) A L62 L39-1351 W51,52, 54,55 YES 56,76 NO W6,13, 2-71 UNIT No. COUNTRY DESTINATION ABB. R61-66, 68,70 NO C62, 63 EUROPEE U.K.T10-51YES NO YES Q61- NO 65 YESL39-1352YESNO C-V351 8.3V 14.5

34、V 7.7V 3.8V 3.3V 8.3V 2.3V 2.9V (3.1V) 2.9V3.7V3.7V 3.7V 3.7V 3.8V 2.9V (3.9V) 4.7V (1.7V) -14.9V 7.1V 1.7V 0.2V 8.1V 3.8V (2.4V) 6.7V (0V) 0V (0.6V) 14.5V 11.0V 8.1V ST: 7.2V MONO: 0V 8.1V 0V ST: 0V MONO : 4.8V 3.7V 8.1V 3.7V3.7V 2.7V (4.0V) 3.7V 3.7V 1.9V (1.5V)3.7V 0V (1.3V) 11.0V 9.4V 9.1V 8.7V

35、8.7V 0.8V 1.8V 1.2V 1.3V 1.9V 9.3V 98MHz :3.8V (0V) 11.0V 2.5V 1.0V 5.0V 1.0V 0.2V 0V 11.0V 0V (2.5V) 2.5V (0V) 2.5V 4.6V 12.2V 0V (9.1V) 7.1V (0V) MW: 0V LM: 0.7V 8.1V 5.1V 5.6K MUTE ON: 0.7V OFF: -2.2V 3.6V C-V301/V351 Y05-3952-70 CAUTION: For continued safety, replace safety critical components o

36、nly with manufacturers recommended parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply cir- cuit) before the appliance is returned to the customer. The DC voltage is an actual reading measured with a high impedance type voltmeter as the AM/FM signal gene