Kenwood-RXD372S-cs-sm 电路图 维修手册.pdf

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1、MINI HiFi COMPONENT SYSTEM RXD-302/302E/352/352E/372S LS-N302/N352 SERVICE MANUAL (XD-302/302E/352/352E/372S)* 1999-5/B51-5530-00 (K/K) 2299 DISC SKIP DISC 3DISC 2DISC 1 INPUTBAND PHONES EX.BASSTUNING MODE MULTI CONTROL MENUSELECT DISPLAY ENTER DEMO ON/STANDBY TAPE A/BREC/ARM VOLUME A PLAY REC/ PLAY

2、B OPEN/CLOSE button (K29-7646-08) Front window (A29-1071-08) POWER button (K29-7650-08) Knob (JOG) (K29-7658-08) EX. BASS button assy (K29-7642-08) Knob (STOP) (K29-7654-08) Cass window L (B10-3527-08) Cass door L (A53-2158-08) Tuning button assy (K29-7643-08) Headphone jack (E11-0386-08) PLAY butto

3、n (K29-7656-08) Knob (VOLUME) (K29-7652-08) CD door (A60-1723-08) PLAY PAUSE button (K29-7648-08) DISC button bass assy (K29-7641-08) Cass window R (B10-3528-08) Cass door R (A53-2159-08) KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J

4、. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM Illust. is RXD-352M. In compliance with Federal Regulations, following are reproduc- tions of labels on, or inside the product relating to laser product safety. *Refer to page 2 if you want to know system conf

5、iguration. Refer to service manual RXD-251/301/301E/301W/351/ 351E/351W/371S (B51-5454-00), if you require CD MECH- ANISM OPERATION DESCRIPTION in detail. RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 2 RadioFans.CN 收音机爱 好者资料库 SYSTEM MAIN UNIT DESTINATION SPEAKER XD-302RXD-302E3LS-N302 XD-302E RXD-302EE4

6、LS-N302 XD-352RXD-352TEMXYLS-N352 XD-352E RXD-352EE2LS-N352 XD-372S RXD-372SM2LS-N352 AM (T90-0815-08) loop antenna (1) Remote (A70-1320-08) : RC-352 control unit (1) Batteries (R6/AA) (2)FM indoor antenna (1) Europe and U.K.Other countries AC (E03-0115-05) plug adaptor (1) Use to adapt the plug on

7、the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.) (T90-0847-08): MXYM2(T90-0836-05): TEE2E3E4 RXD-302/302E/352/352E/372S 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS.2 EXTERNAL VIEW.3 BLOCK DIAGRAM .4 CIRCUIT DESCRIPTION.5 A

8、DJUSTMENT. 7 PC BOARD .11 SCHEMATIC DIAGRAM .15 EXPLODED VIEW .29 PARTS LIST.32 SPECIFICATIONS .Back cover Contents Accessories Operation to reset The microcomputer may fall into malfunction (impossibility to oper- ate, erroneous display, etc.) when the power cord is unplugged while power is ON or d

9、ue to an external factor. In this case, execute the following procedure to reset the microcomputer and return it to normal condition. Press the POWER key while holding the Stop (7) key of the CD section pressed, to switch off the power, and then switch the power on again after a few seconds. Please

10、note that resetting the microcomputer clears the contents stored in and returns and to condition when it left the factory. System configurationCautions RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 3 RadioFans.CN 收音机爱 好者资料库 RXD-302/302E/352/352E/372S 3 EXTERNAL VIEW Slide switch (S62-0083-08) AC power co

11、rd (E30-2906-08) Top cabinet (A01-3725-08) Phono jack (E63-1073-08) Lock terminal board (E70-0108-08) Antenna terminal (E70-0070-08) Illust. is RXD-352M. RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 6 RadioFans.CN 收音机爱 好者资料库 RXD-302/302E/352/352E/372S 4 BLOCK DIAGRAM 24 23 13 + + 100K 17 18 28 19 20 21

12、2 15 16 26 25 23 24 12 11 13 14 10 9 8 7 22 4 3 5 29 1 30 6 100K100K100K100K100K100K100K G G 2 1 2 5 9 11 20 19 16 14 + 27 CD TUNER TAPE A/B PLAY AMP. ALC PLAY R/P OSC BIAS (Q213,L201) Q205 Q203 Q204 Q206 Q201Q202 TAPE OUT Q403,404 REC BUFFER TAPE OUT REC. OUT REC IN DECK A/B SW. B+ PRE. SET EQ PRE-

13、AMP IC402 RL501 Q408, 409 MUTE SYSTEM POWER IC501 +Vcc -Vcc Q501-503 DETECTOR u-COM SPEAKER PROTECTOR +12V 506 Q505, MUTE JACK SPEAKER HEADPHONES +5.5V Q706 Q707 Q705 +Vcc(SWITCHED) to XFORMER -35V Q708 +12V -Vcc CN702 D709 D710 Q702 FLD DISPLAY IC601 u-COM KEY MATRIX CN05- to CD PCB to MAIN PCB RF

14、AMPFILTER RC TUNE AMP MIX IFTCF1 BUFFOSC TUNE AMP IF CF2 TUNE AM RF AMP RF Q106 FM SECTION Q101 PLL u-COM IC201 L.P.F AM SECTION V.T. AM ANT GND FM ANT OUT MIX BUFF AMP TUNE AMP AM RF TUNE OSC ANT RF PLL L.P.F AMP RF IC201 u-COM AMP Q106 IFTCF1 IF FILTER AM SECTION FM SECTION CF2 OUT RC IC102 IC102

15、TUNE FM RF FM OSC Q102 IC01 CXA1992BR RF SIGNAL PROCESSING/SERVO AMP PROCESSOR W/DAC DIGITAL SIGNAL CD POWER DRIVER IC03 BA5936S IC02 CXD2589Q XTL01 33.86MHz M MOTOR DISC MOTOR FEED M TRACKING FOCUS TRAY MOTOR T/T MOTOR SW. LIMIT IN OUTPUT AUDIO CONTROL SW. S01-04 Rch Lch u-COM AUX BASSMIDDLETREBLEV

16、OLUME SPKR ATT LEFT PRE. SET EQ VOLUMEMIDDLETREBLEBASS SUPPLY SPKR ATT LEFT ICBUS DECODER+ LATCHES INPUT MULTIPLEXER +GAIN VREF 0/30 dB 2dB STEP Lch Rch R/P SWITCHING Lch Rch REC. AMP. -Vcc 12V +Vcc 12V JK601 AMP. PRE. AMP. IC602 SUB WOOFER B +12V FRONT PCB to MOTOR SOL. 7.2MHZ 7.2MHZ V.T IFT AM IC2

17、01 FM FRONT-END FM RF IC101 TUNER PCB UNIT CD MECHA. UNIT TUNER PCB UNIT MAIN PCB/FRONT PCB IC401 RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 7 RXD-302/302E/352/352E/372S 5 CIRCUIT DESCRIPTION CD MECHA (9140-C1) DECK MECHA IC01IC601IC201 RF AMP/SERVO (CXA1992BR) DECK PLAY/REC EQ IC (TA8189N) IC02IC102

18、MAIN U-COM DSP (CXD2589Q) FM/AM/MPX IC (LC1833L) LC867240A-5L36 IC03IC103 BTL DRIVER (BA5936S) PLL IC (LC72131D) IC801IC401 FL CONTROLLER (M66004SPA) AUDIO CONTROL IC (TDA7439) 0 0.29 0.61 0.99 1.38 1.82 2.3 2.77 2.77 1. Main microprocessor LC867240A-5L36(IC601) 1-1 Microprocessor periphery block di

19、agram 1-2 VOLTAGE KEY/BAND MATRIX RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 10 RXD-302/302E/352/352E/372S 6 CIRCUIT DESCRIPTION Pin No.NameI/ODescriptionActive 1PLL-CEOCE OUTPUT (LC72131)H: DATAL: ADDRESS 2XRSTIRESET (CXD2589Q)L: ON 3PLL-DOODATA OUTPUT (LC72131) 4PLL-DIIPLL DATA INPUT (LC72131) 5PLL-

20、CLKOCLK OUTPUT (LC72131) 6SOODATA OUTPUT (CXD2589Q) 7SQSOISUB CODE INPUT(CXD2589Q) 8SQCKOSUB CODE CLOCK OUTPUT (CXD2589Q) 9XLATOLATCH OUTPUT (CXD2589Q) 10 NOT USED 11SENS1ISENS1(CXD2589Q) 12RESETIuCOM RESET H: NORMALL: RESET 13POWER DOWNIPOWER DOWN INPUTL: POWER DOWN 14SENS2ISENS2(CXD2589Q) 15VSSGND

21、 16,17X1,2Xtal 6.0MHz 18VDD1+5V 19-21KEY1-3IKEY 1-3 INPUT 22VSSGND 23L-METER LILEVEL METER L,R 24INOT USED 25MODE-SWIDECK MODE SWITCH 26BANDIBAND SWITCH 27SCORISUB-CODE SYNCH DETECT (CXD2589Q) 28PROTECIPROTECTION IN H: PROTECT 29REMOTEIREMOTE SIGNAL INPUTL: ON 30,31ENC A,BIVOLUME ENCODER INPUT A,B 3

22、2PIC-UPIPICK UP UP SWITCH 33PIC-DOWNIPICK UP DOWN SWITCH 34DISC-COUNTIDISC COUNTER SWITCH 35T.T-SWITURNTABLE SWITCH 36TRAY-OPENITRAY OPEN SWITCH 37TRAY-CLOSEITRAY CLOSE SWITCH 38MOTOR+OT.T./U.D MOTOR + 39MOTOR-OT.T./U.D MOTOR - 40TRAY-M +OTRAY MOTOR + 41TRAY-M -OTRAY MOTOR - 42T,T-MSPOTURNTABLE MOTO

23、R SPEED 43CD-VDDOCD VDD CONTOROL(BA5936S MUTE)H: CD 44-51 ONOT USED 52LED-STBYOLED STANDBY ON/OFFL: ON 53LED-TIMEROLED TIMER ON/OFFL: ON 54,55DECK A,B IDECK MECHA MODE SWITCH A,BH: STOPL: PLAY 56VDD+5V 57VSSGND 58,59HALF A,BIDECK MECHA HALF SWITCH A,BL: EXSIT 60REC-FEW-SWIREC FEW SWITCHL: HOOK EXSIT

24、 1-3 Pin description Pin No.NameI/ODescriptionActive 61REC-REV-SWIREC REV SWITCHL: HOOK EXSIT 62A-PHIA DECK REEL SENSOR 63B-PHIB DECK REEL SENSOR 64DECK VCCODECK MECHA VCCH: PLAYL: STOP 65A SOLOA DECK SOLENOID CONTROLH: ONL: OFF 66B SOL.OB DECK SOLENOID CONTROLH: ONL: OFF 67DUBBINGODUBBING CONTROLH:

25、 DUBBING L: NORMAL 68RECOREC CONTROLH: RECL: OTHER 69REC-MUTEOREC MUTEH: OTHERL: REC 70BIASOBIAS ON/OFF CHANGEOVER CONTROLH: RECL: OTHER 71A/BOA/B DECK MECHA CHANGEOVERH: A DECKL: B DECK 72BEET CANCELOREC BEET CANCELH: ONL: OFF 73TAPE-MUTEODECK PLAY OUTPUT MUTEH: ONL: OFF 74-78 NOT USED 79SP-RLYOSPE

26、AKER RELAY ON/OFFH: ONL: OFF 80NOT USED 81MODE-SW4IMODE SWITCH 4 SHORT WAVEH: EXSITL: NONE 82VSSGND 83,84ENC A,BIJOG ENCODER(MULTI CONTROL) A,BL: ON 85FOKIFOCUS OK OUTPUT (CXD2589Q)H: ON 86STEREOIFM STEREO INH: MONOL: STEREO 87SDAI/OAUDIO CONTROL IC (TDA7439) DATA 88SCLOAUDIO CONTROL IC (TDA7439)CLO

27、CK 89VSS2GND 90VDD2+5V 91NOT USED 92MUTEOSYSTEM MUTEH: OFFL: ON 93TUNER-MUTEOTUNER MUTEH: ONL: OFF 94AUDIO-MUTEOLINE (AUDIO) MUTEH: ONL: OFF 95EX.BASSOEX BASS CONTROLH: ONL: OFF 96NOT USED 97FL-CSOFL CONTROLLER (M66004DP) CSL: ON 98FL-RESETIFL CONTROLLER (M66004DP) RESETL: ON 99CLOCKOCLOCK OUTPUT (C

28、XD2589Q) 1002589Q MUTIMUTING SIGNAL INPUT (CXD2589Q)H: ON RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 11 RXD-302/302E/352/352E/372S 7 ADJUSTMENT NO.ITEM INPUT SETTING OUTPUT SETTING TUNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1 AUTO STOP LEVEL (A) 98.0 MHz MONO 1kHz, 40kHz dev 30dBu (ANT input) AUTO 9

29、8.0MHz SFR101 Adjust SFR101 and stop at the point where FLD801( ) goes ON. NO.ITEM INPUT SETTING OUTPUT SETTING TUNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1.IF (A) 98 MHz,1 kHz MOD 75 KHz (DEV) 60 dBu (ANT INPUT) (B)98MHzT101 Maximum output (Minimum distortion 2. LOW END TRACKING (A) 90MHz, 1 kHz

30、MOD 75 kHz (DEV) 35 dBu ( ANT INPUT) (B)90MHzL102Maximum output 3. HI END TRACKING (A) 106MHz,1 kHz MOD 75 kHz (DEV) 35 dBu (ANT INPUT) (B)106MHzTC101Maximum output 4.VT Connect the DC voltage meter to TP2. 87.5 MHzL103VT=1.0V0.05V 108 MHz Check the VT=7.0V1.0V NO.ITEM INPUT SETTING OUTPUT SETTING T

31、UNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1. LOW END TRACKING (A) 600 kHz or 603 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (B) 600 kHz or 603 kHz T103Maximum output 2. HIGH END TRACKING (A) 1400 kHz or 1404 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (B) 1400 kHz or 1404 kHz TC101Maximum output 3.VT Connect

32、 the DC voltage meter to TP1. 531 kHzL104VT=1.2V0.05V 1602 kHz Check the VT=7.3V1.0V NO.ITEM INPUT SETTING OUTPUT SETTING TUNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1. LOW END TRACKING (A) 600 kHz or 603 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (B) 600 kHz or 603 kHz T104Maximum output 2. HIGH END TR

33、ACKING (A) 1400 kHz or 1404 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (B) 1400 kHz or 1404 kHz TC102Maximum output 3.VT Connect the DC voltage meter to TP2. 531 kHzL105VT=1.2V0.05V 1602 kHz Check the VT=7.3V1.0V FM SECTION (M2 type) * Europ version no Adjustment MW SECTION (Except M2 type) MW SECTION (M

34、2 type) FM SECTION (Except M2 type) RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 14 RXD-302/302E/352/352E/372S 8 ADJUSTMENT FM 75 AM AMFM 75 ANTENNA Other countries Europe and U.K. GND (A) (C) (D) AM-SG FM-MPX-SG FM-MPX-SG POLAR SG Dummy antenna Oscilloscope AC voltmeter (B) Distortion meter TO TUNER UN

35、IT CN101, pin 9 (Lch) pin 7 (Rch) pin 8 (GND) NO.ITEM INPUT SETTING OUTPUT SETTING TUNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1. LOW END TRACKING 5.95 MHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (D) (B)5.95 MHzL201Maximum output 2. HIGH END TRACKING 17.9 MHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (D) (B)17.9

36、 MHzTC201Maximum output 3.VT Connect the DC voltage meter to TP2. 5.95 MHzL202VT=1.0V0.05V 17.9 MHz Check the VT=8.4V1V NO.ITEM INPUT SETTING OUTPUT SETTING TUNER SETTING ALIGNMENT POINTS ALIGN FORFIG. 1. LOW END TRACKING 162 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (D) (B)162 kHzT105Maximum output 2.

37、HIGH END TRACKING 270 kHz 1 kHz, 30% MOD 30 dBu (ANT INPUT) (D) (B)270 kHzTC103Maximum output 3.VT Connect the DC voltage meter to TP2. 153 kHzT106VT=1.0V0.05V 279 kHz Check the VT=5.0V1.0V SW SECTION (M2 type) LW SECTION (T type) INSTRUMENTS CONNECTION RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 15 RX

38、D-302/302E/352/352E/372S 9 ADJUSTMENT Oscilloscope Frequency counter AC voltmeter PIN8PIN13 Lch: PIN13(LA08) Rch: PIN8(LA06) IC401 (A) MAIN UNIT NO.ITEM INPUT SETTINGS OUTPUT SETTINGS CASSETTE TAPE DECK SETTINGS ALIGNMENT POINT ALIGN FORFIG. Unless otherwise specified : each ; switch should be set a

39、s follows : 0dBs = 0.775V BEAT SW : OFF I. Cassette mechanism section (REC/PB head adjustment) 1 Demagnetization and cleaning Power OFF, demagnetization, cleaning play REC/PB head, erase head. capstan, pinch roller Demagnetize the REC/PB head by head eraser. Clean the REC/PB head, erase head capstan

40、 and pinch roller with a cotton swab immersed in alcohol. 2 REC/PB head azimuth MTT-114, TCC-153 SCC-1727 10 kHz, -10dB (A)PLAY Azimuth adjustment screw In a setting wher the output is maximized, adjust the azimuth adjustment screw so that the Lissajous figure appearing on the oscilloscope screen co

41、mes near to a line slanted45 Note : The head should be installed in such a manner that it approaches the tape face. II. PC board adjustment Tape speed MTT-111 TCC-100 SCC-1727 3 kHz, -4 dB (A)PLAYSFR201 Adjust so that Frequency is 3 kHz at the center of the tape. Playback level TCC-120 315 Hz 0dB (A

42、) PLAY Approx. -5dBm reference level Recording level Put standard test tape (TCC-120) into B deck. Put standard blank tape into A deck. (A) Dubbing and playback. Approx. -5dBm reference level CASSETTE DECK SECTION INSTRUMENTS CONNECTION RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 18 RXD-302/302E/352/35

43、2E/372S 10 ADJUSTMENT FIG. (a) No.ITEM INPUT SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR PLAYER SETTINGS 1LASER POWER- Apply the sensor section of optical power meter on the pickup lens. - On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level

44、of 0.6 Vp-p or more. Press the PLAY/PAUSE key. Pickup Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-08) 0.080.15 mW Optical power meter (a) Laser power CD SECTION RXD-302(K) COVER1,1( 99.6.18 0:31 PM y W 19 ACEBD 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors

45、 and capacitors. PC BOARD(Component side view) 11 E B E E B B B B B E E E GDS GDS S GD 8 1 3 B 16 B B E E E 1 1 5 24 1 1 6 1 7 B E 1 2 15 16 TUNER UNIT CD UNIT RXD-302(K) COVER1,1( 99.6.18 0:32 PM y W 22 FGIHJ 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors. PC

46、 BOARD(Component side view) 12 E E E E B B E E E E E E B B B B B S S 10 1 D D G G 12 IC102 IC103 SDG DSG B B1 9 E B EB E B B TUNER UNIT RXD-302(K) COVER1,1( 99.6.18 0:32 PM y W 23 KMOQSLNPRT 2 1 3 5 7 4 6 4 1 15 EE AUX E 1 1 8 8 3 31 1 5 1 23 24 B E B B E E 2 1 1 15 10110 15 16 2 15 2 1 1 B E 1 10 E

47、BEB E E B B E B E B E E E E E B B B EB EB B B 1 1 8 6 B B B 1 E E E E E E E E E E E E E E B B B B BB B B B B B E B B B EB E E E B EB B B E E E B E B B E B E B EB B B PHONES Refer to the schematic diagram for the value of resistors and capacitors. PC BOARD(Component side view) MAIN UNIT 1314 FRONT UN

48、IT RXD-302(K) PCBSD2,2( 99.6.18 0:11 PM y W 2 ABDFHJCEGI 2 1 3 5 7 4 6 RXD-302/302E/352/352E/372S Y39-3522-71 1 2 3 4 5 6 7 8 9 10 11 12 FMIF AUMTX REG AMIF GND TULED STIND FMDET VCC IFBUF AM/FM ST/MO 24 23 22 21 20 19 18 17 16 15 14 13 OSC/FMSD OSC AFC AMRF SMET AMOUT FMOUT PLLIN MPXIN PILOT AOUT LOUT 22 21 20 19 18 17 16 15 14 13 12 XOUT VSS AOUT AIN PD