Kenwood-RXD655-cs-sm 电路图 维修手册.pdf

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1、70% MINI HiFi COMPONENT SYSTEM RXD-655/655-GR/655-H/655E/655E-GR 2001-6 PRINTED IN KOREA B51-5737-00 (K/K) 2308 Panel assy * (A60-) Knob(VOLUME) (K27-2470-08) Dress ring (A21-3957-08) In compliance with Federal Regulations, following are repro- duction of labels on, or inside the product relating to

2、 laser prod- uct safety. KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM. * Refer to parts list on page 33. Panel(CD) (A60-2090-08) Front glass *

3、(B10-) RXD-655E-H/655L/655M/655M-H RXD-755/755E/755L/755M SERVICE MANUAL (XD-655855)* *Refer to page 2 if you want to know system configuration. RadioFans.CN 收音机爱 好者资料库 AM Loop Antenna(1) (T90-0879-08) “AA” size battery (UM/SUM-3, R6, HP-7 or similar)(2) Remote Control(1) (A70-1531-08): MXM3M5 (A70-

4、1537-08): ETE2 FM Antenna(1) (T90-0883-08) Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.) AC Plug Adaptor (1) (E03-0115-05) RXD-655/755 2 CONTENTS / ACCESSORIES CONTENTS / ACCESSORIES . 2 EXTERNAL VIEW.3 DISASSEMBLY FOR R

5、EPAIR.4 BLOCK DIAGRAM .9 CIRCUIT DESCRIPTION.10 ADJUSTMENT.15 PC BOARD . 16 SCHEMATIC DIAGRAM . 23 EXPLODED VIEW .31 PARTS LIST.33 SPECIFICATIONS .Back cover Contents Accessories CLASS 1 LASER PRODUCT The marking this product has been classified as Class 1. It means that there is no danger of hazard

6、ous radiatio outside the product. SYSTEMMAIN UNITDESTINATIONSPEAKER XD-655RXD-655ETLS-N50S XD-655ERXD-655EE2 LS-N50S XD-655-GRRXD-655-GRET LS-N50S-GR XD-655E-GRRXD-655E-GRE2 LS-N50S-GR XD-655-HRXD-655-HELS-N50S-H XD-655E-HRXD-655E-HE2LS-N50S-H XD-655-HRXD-655M-HMLS-N50S-H XD-655RXD-655MMXLS-N50S XD-

7、655(M3)RXD-655L(M3)M3LS-N50S(M3) XD-655(M5)RXD-655L(M5)M5LS-N50S(M3) XD-755RXD-755ETLS-N70S XD-755ERXD-755EE2 LS-N70S XD-755RXD-755MMXLS-N70S XD-755(M3)RXD-755L(M3)M3LS-N70S(M3) XD-755(M5)RXD-755L(M5)M5LS-N70S(M3) XD-855RXD-755ETLS-N90S XD-855ERXD-755EE2 LS-N90S XD-855RXD-755MMXLS-N90S XD-855(M3)RXD

8、-755L(M3)M3LS-N90S(M3) XD-855(M5)RXD-755L(M5)M5LS-N90S(M3) SYSTEM CONFIGURATIONCAUTIONS RadioFans.CN 收音机爱 好者资料库 RXD-655/755 3 EXTERNAL VIEW ANTENNA AM LOOP FM 75 VIDEO /AUX +- LR RL SPEAKERS Pin jack (E63-1219-08) Pin jack(AM) (E40-8933-08) Cabinet(TOP) (A02-3014-08) Lock terminal board (E70-0144-08

9、) AC power cord bushing (J42-0338-08) AC power cord * (E30-) FM Antenna (E70-0145-08) * Refer to parts list on page 33 . RadioFans.CN 收音机爱 好者资料库 RXD-655/755 4 DISASSEMBLY FOR REPAIR Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it sa

10、fe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit. 3. Take off nylon bands or wire holders where they need be removed when disassembling the unit. After

11、servicing the unit, be sure to rearrange the leads where they were before disassembling. 4. Take suffcient care on static electricity of integrated circuits and other circuits when servicing. Figure 7-2 Figure 7-3 1Top Cabinet1. Screw . (A1) x47-1 2Side Panel1. Screw . (B1) x87-1 (Left/right) 3CD Pl

12、ayer Unit/1. Turn on the power supply,7-2 CD Tray Cover open the disc tray, take out the CD cover, and close. (Note 1) 2. Screw . (C1) x1 3. Hook. (C2) x3 4. Hook. (C3) x2 5. Socket . (C4) x2 4Rear Panel1. Screw . (D1) x97-2 5Main PWB1. Screw . (E1) x17-2 2. Socket . (E2) x38-2 3. Flat Cable . (E3)

13、x1 4. Tip Wire. (E4) x1 6Power Supply PWB1. Screw . (F1) x28-2 2. Socket . (F2) x1 3. Flat Wire. (F3) x18-3 7Front Panel1. Screw . (G1) x38-2 8Display PWB1. Screw .(H1) x98-3 2. Socket . (H2) x1 9Tape Mechanism1. Open the cassette holder.8-3 2. Screw. (J1) x5 10Headphones PWB1. Screw . (K1) x18-3 11

14、Turntable1. Hook. (L1) x28-4 2. Cover . (L2) x1 12Disc Tray1. Turn fully the lock lever in the7-3 arrow direction. 2.While holding the lock lever,rotate8-1 the cam gear until the cam gear rib engages with the clamp lever. 3. Push the slide holder backward to8-5 engage the claw with the groove and re

15、move it in the direction of the arrow. .(M1) x6 13CD Servo PWB1. Screw . (N1) x18-6 (Note 2)2. Hook. (N2) x2 3. Socket . (N3) x4 14CD Mechanism1. Hook. (P1) x29-1 2. Hook. (P2) x3 15Loading Motor PWB1. Hook. (Q1) x59-1 STEPREMOVALPROCEDUREFIGURE Figure 7-1 (B1)x4 3x10mm (B1)x2 3x10mm Rear Panel (B1)

16、x2 3x10mm Side Panel (Right) Side Panel (Left) (A1)x2 3x12mm (A1)x2 3x12mm Top Cabinet (E1)x1 3x10mm (C3)x1 (D1)x2 3x10mm (C1)x1 3x10mm (D1)x7 3x10mm CD Player Unit DC Tray Cover Rear Panel Pull (C3) x1 (C4)x2 (C2) x3 1 1 2 Main PWB CD Servo PWB Note 1: How to open the changer manually. (Fig. 7-3) 1

17、. In this state, turn fully the lock lever in the arrow direction through the hole on the loading chassis bottom. 2. While holding the lock lever, rotate the cam gear anticlockwise until the cam gear rib engages with the clamp lever. (Fig. 8-1) 3. After that, push forward the CD slide holder. Note 2

18、: 1. After removing the connector for the optical pickup from the connector, wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage. Note 3: 1. Be careful not to break the claw of the CD mechanism. 2. When fining back th

19、e cam gear assembly, let it lock by front movement. LOCK LEVER RXD-655/755 5 DISASSEMBLY FOR REPAIR Figure 8-1 Figure 8-2 Figure 8-3 Figure 8-4 Figure 8-5 Figure 8-6 CLAMP LEVER CAM GEAR RIB (F1)x1 3x6mm (G1)x3 3x10mm (F1)x1 3x10mm (F2)x1 (E3)x1 (E4)x1 (E2)x2 Main PWB (E2)x1 Power Supply PWB Power S

20、upply PWB (H1)x9 3x10mm (H2)x1 (J1)x5 3x10mm (K1)x1 3x10mm (F3)x1 Display PWB Headphones PWB Open Cassette Holder Tape Mechanism Turntable Disc Tray (L2) x1 CD Player Unit (L1) x2 1 3 2 (M1) x3 (M1) x3 (N3) x2 (N2) x2 (N3) x2 CD Servo PWB CD Player Base (N1)x1 3x8mm RXD-655/755 6 DISASSEMBLY FOR REP

21、AIR Figure 9-1 (P2) x3 (P1) x1 (Q1) x5 (P1) x1 Loading Motor PWB CD Mechanism REMOVING AND REINSTALLING THE MAIN PARTS TAPE MECHANISM SECTION Perform steps 1 to 7 and 9 of the disassembly method to remove the tape mechanism. How to remove the record/playback and erase heads (TAPE 2) (See Fig. 10-1)

22、1. When you remove the screw (A1) x 2 pcs., the recording/ playback head and three-dimensional head of the erasing head can be removesd. How to remove the playback head (TAPE 1) (See Fig. 10-2) 1. When you remove the screw (B1) x 2 pcs., the playback head. How to remove the pinch roller (TAPE 1/2) (

23、See Fig. 10-3) 1. Carefully push the inside claw to remove it. The pinch roller pawl in the direction of the arrow , and remove the pinch roller (C1) upwards. Note: When installing the pinch roller, pay attention to the spring mounting position. How to remove the belt (TAPE 1) (See Fig. 10-4) 1. Rem

24、ove the main belt (D1) x 1 pc., from the motor side. 2. Remove the FF/REW belt (D2) x 1 pc. Figure 10-1 Figure 10-2 Figure 10-3 (A1)x2 2x9mm TAPE2 Record/Playback Head Erase Head (B1)x2 2x9mm TAPE1 Playback Head Pinch Roller (C1)x1 STEP1STEP2 RXD-655/755 7 DISASSEMBLY FOR REPAIR How to remove the pi

25、ckup (See Fig. 11-2) 1. Remove the stop washer (B1) x 1 pc., to remove the gear (B2). 2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4). 3. Remove the pickup. Figure 11-2 CD MECHANISM SECTION Perform steps 1, 2, 3, 11 and 14 of the disassembly method to remove the CD mechanism. How to rem

26、ove the loading motor (See Fig. 11-1) 1. Bend the hooks (A1) x 5 pcs., to remove the loading motor. Figure 11-1 Note After removing the connector for the optical pickup from the connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from el

27、ectrostatic damage. (A1)x2 (A1)x1 Loading Moter CD Base (A1)x2 (B3) x2 2.6 x6mm Shaft (B4) x1 Stop Washer (B1) x1 Gear (B2) x1 CD Mechanism Pickup How to remove the belt (TAPE 2) (See Fig. 10-4) 1. Remove the main belt (E1) x 1 pc., from the motor side. 2. Remove the FF/REW belt (E2) x 1 pc. How to

28、remove the motor (See Fig. 10-5) 1. Remove the screws (F1) x 2 pcs., to remove the motor. Figure 10-4 Figure 10-5 TAPE2TAPE1 Main Belt (D1)x1 TAPE2 Main Belt (E1)x1 TAPE1 Main Belt FF/REW Belt (E2)x1 FF/REW Belt (D2)x1 Motor Motor (F1) x2 2.6x5mm Motor RXD-655/755 8 2 6 7 2 T.F 4 8 1 5 3 22 23 21 14

29、 4 1 2 9 5 17 16 OUT IN GND VCC MPX IN AM OSC IN AM OSC OUT AM RF IN 5 3 4 21 20 1 15 22 16 6 OSC 1 3 2 9 10 7 16 15 13 12 14 11 R L R L R L R L 17 3 +B4 FM OSC AM IN FM IN FM OSC FM+B 21 4 R L 8 18 AUX TAPE CD TUNER L R 23 +B4 R L 24 2 3 4 6 9 16 T1/T2 REC 13 4 5 7 18 VCC 1 +B3 +B3 23 14 12 21 20 P

30、.B H/N 17 8 15 19 NOR/ HIGH T1/T2 +B4 L R L R 10 L NF R NF ALC REF R REC R NF L REC POP REDUCE R(T2) L NF R(T1) L(T2) L(T1) +B4 +B4 REC 7 4 1 8 -B2 +B4 5 VH+VH- VL- VL+ 14 18 R L 6 7 8,9 10,11 1 -B1 +B1 L-OUT R-OUT SP.DET. 12-14 25-36 15-24 4-11 1,2 38,39 10 6 7-9 1 2 21 56 58 59 57 55 54 49 50 48 4

31、7 46 43 42 67-78 79 80-89 90-92 93-100 52 53 51 45 44 41 40 38 39 36 37 25 33-31 34 35 11 16 13 12 17-20 +B7 +B7 +B7 +B7 +B7 VDD VLOAD RESET VDO 22 23 24 CE CL DO DI VDD AVDD +B6 BIAS T1/T2 REC 1 2 3 +B7 +B3 +B6 - - + + R-CH L-CH +B2 -B2 +B3 M10V +B4 A10V VF2 +B4 63Hz 30 7 -B2 4 1 8 10Hz1K 29 28 -VF

32、 VF1 +B6 +5V +B5 CD+B C801 +B7 T1/T2 P.B REC P.B 4 5 VT FM IF IN REG 3 +B4 8 19 20 18 FM/AM OUT 15 L R 12 11 1012 IF IN 136SD 1013FM MONO/ST 117STEREO MONO/ST IF OUT 24 IN OUT AFC AM RF IN +B4 17FM +B4 6 CE DI CL DO 16 2 4 8 3 7 15 14 13 11 10 9 63-66 MPX IN VSSA VDDA MPX IN RDS-ID RDCL RDDA RST XIN

33、 VDDD VSSD XOUT AM RF P-IN POWER AMP. IC901 TERMINAL AM LOOP ANT FM FRONT END FE301 CF301 FM IFFM IF COVERAGETRACKING AMAM BAND T303T306 T351 IC303 FM/AM IF MPX. LA1832S X351 456kHz PLL(TUNER) LC72131 IC302 4.5MHz X352 Q360 CNS11 from CD SECTION CNP1 LC75341 IC601 AUDIO JK601 VIDEO/ M IC101 Q703 Q70

34、4 Q705 54PIN IC700 IC700 56PIN 53PIN IC700 55PIN IC700 MOTOR DRIVER TAPE MECHANISM ASSEMBLY SOLM1,SOLM2 SOLENOID MM1 MOTOR TAPE SWM2 T2 PLAY R.PLAY SWM4 SWM1 T1 PLAY SWM3 F.PLAY AN7345K /PLAYBACK AMP. PLAYBACK Rch Lch Rch Lch TAPE 1 TAPE2 PB HEAD REC/PB HEAD SWITCHING Q103-106 SWITCHING 108 AC BIAS

35、Q111 Q109 Q126 Q110 SWITCHING Q121,122 MUTING SWITCHING ERASE HEAD Q128,L104 BIAS OSC SWITCHING Q124 BIAS AM IF 863 IC860 KIA4558P OPE AMP. -20dB ATT SYSTEM MUTE 604606 Q864,865 Q901- FL701 DISPLAY IC700(1/2) SYSTEM UPD780206 708 Q706- MICROCOMPUTER Q700 RESET XL701 4.1943MHz VR701 JOG RX701 SENSOR

36、REMOTE KEY0-2 to CD SECTION JK670 HEADPHONES M M901 FAN MOTOR Q907 DRIVER Q905 RL901 SO901 TERMINAL SPEAKER D809 T801 TRANSFORMER F804 T5AL 250V F805 T5AL 250V D810 D811-814 Q803 Q850 F806 CONSTANT VOLTAGE T2AL 250V KIA7810AP REGULATOR VOLTAGE Q851 VOLTAGE CONSTANT ZD851 T2AL 250V F807 KIA4558 MICRO

37、COMPUTER IC700(2/2) OPE AMP. 562 SYSTEM UPD780206 ZD801 REGULATOR KIA7805P VOLTAGE Q852 Q802 Q801 D804 D803 T2.5AL250V F801 D801 CONSTANT REGULATOR VOLTAGE D802-805 T802 SUB POWER TRANSFORMER RL801 AC POWER SUPPLY CORD AC 230V 50Hz UNSWITCH 5V VOLTAGE MAIN POWER AUX IN AND RECORD Q107, PROCESSOR Q60

38、3, Q862, Q605, IC561, 904 ANTENNA SO301A Q301 AMP FM IF CF303 FM IF CF351 L.P.F L351 QT21 AMP L341 BALUN REGULATOR LC72723 ICT21 4.332MHz XT21RDS DECODER RXD-755/655 BLOCK DIAGRAM BLOCK DIAGRAM FOCUS COIL TRACKING COIL FD0 TD0 SLDO SPDO 20 22 21 26 XOUT WRQ DO RES DI CE CONT5 19 37 28 50 56 75 RFVDD

39、 VVDD VDD ADAVDD FIN1 RVDD LVDD XVDD FIN2 LDS LDD TIN2 TIN1 CLK XIN 23 40 51 55 57 69 49 48 66 65 64 63 61 62 5 7 28 18 7 46 41 47 80 10 79 9 8 42 43 45 44 25 70 71 LCHO LVSS RCHO RVSS CONT2 CONT3 CONT4 +3.3V +3.3V 4 5 7 6 18 23 24 40 82 VCC1 VCC2 VCC4 VCC3 1 2 25 17 39 38 42 41 8-14 22 29-35 15 16

40、27 26 21+5V 1 2 3 4 5 6 AGND R-CH DGND L-CH +5V +5V DO 4 6 5DI CLK 3 2 1 CE WRQ DRF 8 9 7 OC. DISC NO CLAMP SW CD RES 4 5 6 1 2 3 1 6 2 3 4 5 1 4 6 5 3 2 +5V PICK UP UNIT IC1 LC78645E CONTROL SERVO/SIGNAL XL1 33.8688MHz Q2 CONSTANT VOLTAGE Q1 LASER DRIVER IC2 M63001FP DRIVER FOCUS/TRACKING/SPIN/SLED

41、 M M M1 MOTOR SPINDLE MOTOR SLED M2 PICKUP IN Q3 CNP7 to SECTION MAIN SECTION CNP8 DISPLAY to CNP4CNS4 M SW1 OPEN/CLOSE SW2 CLAMP DISC SW3 NUMBER LOADING RXD-755/655 RXD-655/755 9 Port No.Port NameI/OFunction 1VDD-POWER SUPPLY(+5V) 2-20dB ATTO-20dB ATTENUATION 3NO USE/DSA STB-GND 4T BIASODECK BIAS C

42、ONTROL 5T T1/T2ODECK T1/T2 CHANGE OVER 6REC/PLAYODECK RECORDING/PLAYBACK CHANGE OVER 7RES OUTOCD DSP REQUEST 8DRFICDRF LEVEL DETECTION 9WRQICD DSP WRITE REQUEST 10REQUESTIRESET SIGNAL INPUT 11X2OMAIN CLOCK OUTPUT 12X1IMAIN CLOCK INPUT 13VPP/IC-GND 14XT2-OPEN 15SPN-OPEN 16VDD-POWER SUPPLY(+5V) 17CD C

43、LKOCD DSP CLOCK 18CD DIOCD DSP COMMAND 19CD DOICD DSP CODE Q INPUT 20CD CEOCD DSP CE OUTPUT 21CEOCHIP ENABLE OUTPUT 22CLKOCLOCK OUTPUT 23DIODATA OUTPUT 24DOIDATA INPUT 25AVSS-GND 26O/C SW/DSA DATAICD OPEN CLOSE SWITCH INPUT 27 NO USE/DSA ACK /TUN SM ITUNER SIGNAL METER INPUT 28SPEANA 2ISPEANA DATA I

44、NPUT(16kHz) 29SPEANA 1ISPEANA DATA INPUT(1kHz) 30SPEANA 0ISPEANA DATA INPUT(63kHz) 3133KEY2KEY0IKEY INPUT 34AVDD-ANALOG POWER SUPPLY 35AVREF-ANALOG REFERENCE VOLTAGE 36P INIPOWER FAILURE DETECTION 37,38JOG1,0IJOG VOLUME INPUT 1, 0 39REMOCONIREMOTE CONTROL SIGNAL INPUT 40VSS-GND 41SMUTEOSYSTEM MUTE C

45、ONTROL 42T SOL BODECK2 SOLENOID CONTROL 43T SOL AODECK1 SOLENOID CONTROL 44T MOTORODECK MOTOR CONTROL 45TIMER LEDOTIMER LED CONTROL 46VDD-POWER SUPPLY(+5V) 47AC RLY CONT.OAC RELAY CONTROL 48SP RLYOSPEAKER OUTPUT RELAY CONTROL 49SP DETISPEAKER OUTPUT DETECTION 50T1 RUNIDECK1 REEL SENSOR DETECTION POR

46、T 51T2 RUNIDECK2 REEL SENSOR DETECTION PORT 52CD CLAMP SWICD CHANGER CLAMP SWITCH INPUT 53PLAY SW AIDECK PLAY SWITCH A INPUT 54PLAY SW BIDECK PLAY SWITCH B INPUT 55FPAIDECK FORWARD RECORDING SWITCH INPUT 1. Port Description of Microprocessor RXD-655/755 10 CIRCUIT DESCRIPTION RXD-655/755 11 CIRCUIT DESCRIPTION Port No.Port NameI/OFunction 56FPBIDECK REVERSE RECORDING SWITCH INPUT 57MIC IN-OPEN 58MP