JVC KD-S550 Service Manual Download Page 27 | Manualshive

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LCD & key control section

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Summary of Contents for KD-S550

Page 1: ... S600 KD S550 KD S600 Area Suffix J Northerm America E Continental Europe Contents Safety precaution 1 2 Instructions 1 3 13 Location of main parts 2 1 Disassembly method 2 2 Adjustment method 2 7 Flow of functional operation until TOC read 2 8 Maintenance of laser pickup 2 10 Description of major ICs 2 11 Block diagram 2 23 Standard schematic diagrams 2 24 Printed circuit board 2 27 28 Parts list...

Page 2: ...r on some parts of the chassis Therefore pay attention to such burrs in the case of preforming repair of this system Safety precaution CAUTION Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check ...

Page 3: ...ol unit CD mechanism Display LED key control board Main board Tuner pack Main board Connector to controller Power IC ISO connector Antenna jack Loading motor Mechanism relay board Damper Optical pick up unit Damper Feed motor Spindle motor ...

Page 4: ...e arrow Removing the front chassis See Fig 2 Removing the heat sink See Fig 3 1 Remove the three screws A attaching the heat sink on the left side of the body and remove the heat sink Removing the bottom cover See Fig 4 1 2 Turn the body upside down Insert a screwdriver to the two joints c and two joints d on both sides of the body and the joint e on the back of the body then detach the bottom cov...

Page 5: ...embly Removing the CD mechanism assembly See Fig 7 1 2 3 4 Remove the front chassis Remove the bottom cover Remove the main amplifier board assembly Remove the three screws D attaching the CD mechanism assembly from the top cover Removing the control switch board See Fig 8 and 9 1 2 3 Remove the front chassis Remove the four screws E attaching the rear cover on the back of the front panel unit Rem...

Page 6: ...the CD mechanism control board in the direction of the arrow while releasing it from the two damper bracket slots i and the front bracket slot j Disconnect the flexible wire from connector on the pickup unit 1 2 Removing the CD mechanism control board See Fig 10 and 11 Turn the FD gear in the direction of the arrow to move the entire pickup unit to the appropriate position where the flexible wire ...

Page 7: ...h sides fix arms and move the fix plates in the direction of the arrow to place the four shafts l as shown in Fig 17 and 18 Remove the CD mechanism ass y and the two springs m attaching the flame Remove the two screws J and both sides rear damper brackets from the dampers Detach the CD mechanism ass y from the left side to the right side 1 2 3 4 Removing the CD mechanism ass y See Fig 10 15 to 18 ...

Page 8: ...t nut from the pickup unit Pull out the FD screw 2 Removing the pickup unit See Fig 19 and 20 When reattaching the pickuap unit reattach the part o of the pickup unit then the part n of the FD screw ATTENTION Prior to performing the following procedure remove the CD mechanism control board the front bracket loading motor the CD mechanism ass y and the feed motor ass y Turn up the CD mechanism ass ...

Page 9: ...V 10 5 16V Load impedance 20Kohm 2 Speakers connection Output Level Line out 2 0V Vol MAX How to connect the extension cable for adjusting Dummy load Exclusive dummy load should be used for AM and FM For FM dummy load there is a loss of 6dB between SSG output and antenna input The loss of 6dB need not be considered since direct reading of figures are applied in this working standard Standard volum...

Page 10: ...N When the laser diode correctly emits Microprocessor commands Rough Servo Mode CLV Servo Mode ProgramArea CLV Servo Mode Lead In Area Digital 0 RF signal Flow of functional operation until TOC read When the pickup correctly moves to the inner area of the disc TERMINAL Microprocessor commands FMO TC9462 53 FEED MOTOR TERMINAL IC581 5 REST SW When the disc correctly rotates Tracking Servo Loop ON S...

Page 11: ... adjustment should be performed to match the characteristics of the whole optical block do not touch the semi fixed resistor If the laser power is lower than the specified value the laser diode is almost worn out and the laser pickup should be replaced If the semi fixed resistor is adjusted while the pickup is functioning normally the laser pickup may be damaged due to excessive current Turn off t...

Page 12: ...L Serial data input output Ground output left rear output left front Treble control capacitor left channel or input from an external equalizer Bass control capacitor leftchannel or output to an external equalizer Bass control capacitor left channel Input volume 1 left control part Input loudness left control part Output source selector left channel Not used Not used Input C left source Not used In...

Page 13: ...PDFR TBAL FBAL EF EF OUT TE TE OUT CROSS TE BPF VDET LD OFF VREF ENV 30 24 25 26 23 22 1 4 3 33 32 34 31 36 35 13 14 15 16 20 2 21 6 29 7 28 27 8 9 10 17 11 12 19 ENV CURCUIT RF DET AGC EQ BDO OFTR VCBA VCBA VCBA VCBA 1 Pin layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 2 Block diagram ...

Page 14: ...nverse input pin for tracking error amp Tracking error signal output Tracking error cross output Input pin of tracking error through BPF Vibration detection signal output Connect to ground Reference voltage output Description APC amp input terminal APC amp output terminal APC ON OFF control terminal Envelope output Ground RF detection signal output Of track status signal output BDO output pin A ca...

Page 15: ... 8 9 10 11 12 BA4905 V3 IC901 1 Terminal layout 2 Block daigram EXT EXT ACC AUDIO 9V CTRL ILM 10V GND RESET RESET COMP VDD 5 7V CD 8V VCC AJ 1 2 3 4 5 6 7 8 9 10 11 12 37K 5K REGULATOR Overvoltage protection circuit ...

Page 16: ...nputting voltage This output voltage is 5 7V and max output current is 100mA This voltage supply is for microcomputer Whenever back up voltage supply is connected the output keeps on running This output voltage is 9 0v and max output current is 500mA This voltage supply for AUDIO This output voltage is 8 0V and max output current is 1A This voltage supply for CD Output selector of CD AUDIO ILM and...

Page 17: ... layout 2 Block diagram IN1 IN2 IN3 IN4 STBY 2 1 11 13 23 10 TAB PROTECTOR ASO SURGE TSD INPUTBUFFER1 INPUTBUFFER2 INPUTBUFFER3 INPUTBUFFER4 AMP1 AMP2 AMP3 AMP4 MUTE PVCC1 PVCC2 INVCC 12 22 14 18 6 3 4 5 7 8 9 15 16 17 19 20 21 1 23 ...

Page 18: ...data output CD LSI command load signal No use No use E volume clock output E volume data output 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 76 75 76 77 78 79 80 CD ON RELAY BBE CTL BEEP SW4 SW1 SW3 REST JOG0 JOG1 CD SENSE STATUS P SAVE2 SD ST REMOCON J BUS INT BAND MONO IFRQ AGC MUTE LEVEL S METER KEY CHANGE KEY2 KEY1 KEY0 P SAVE1 SENSE FM IF ...

Page 19: ...annels 3 4 and 5 VCC1 and VCC S short circuited Loading output Loading output Output pin for channel 4 Output pin for channel 4 Output pin for channel 3 Output pin for channel 3 Output pin for channel 2 Output pin for channel 2 Output pin for channel 1 Output pin for channel 1 Power for channels 1 and 2 BTL VCC S and VCC2 short circuited Input pin for channel 1 Input pin for channel 1 for gain con...

Page 20: ...mmon driver output pins The frame frequency is given by t0 fosc 384 Hz Power supply connection Provide a voltage of between 4 5 and 6 0V Display turning off input pin INT L Vss off S1 to S52 COM1 to COM3 L INT H VDD on Serial data can be transferred in display off mode Used for applying the LCD drive 2 3 bias voltage externally Must be connected to VDD2 when a 1 2 bias drive scheme is used Used fo...

Page 21: ...DD2 CLVS CRC BLKCK CLDCK SBCK SUBC DEMPH RESY FLAG6 RESY EFM DEMODULATION SUBCODE DEMODULATION SYNC INTERPOLATION 16k SRAM CIRC ERROR CORRECTION DEINTERLEVE LRCKIN MSEL BCLK SSEL SRDATAIN PSEL IOSEL DIGITAL DEEMPHSIS 8TIMES OVER SAMPUNC DIGITAL FILTER 1BIT DAC LOGIC S PEM R PEM L DIGITAL AUDIO INTERFASE DIGITAL AUDIO INTERFASE INTER POLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECTIVE AUTO CUE ...

Page 22: ...output Kick pulse output Tracking drive output Focus drive output Reference voltage input pin for D A output block TVD FOD FBA TBAL Focus Balance adjust signal output Tracking Balance adjust signal output Focus error signal input Analog input Tracking error signal input Analog input RF envelope signal input Analog input Vibration detect signal input H detect Off track signal input H off track Trac...

Page 23: ...UTPUT B INPUT B INPUT A INPUT A INPUT A OUTPUT V NJM4565M WE IC151 Ope amp AMP AGC Detector BPF I V conversion PD Vcc Comp 22k ohm magnetic shield Vcc Rout GND for trimming circuit RPM6938 SV4 IC602 Remote control receiver ...

Page 24: ...lock diagram IC561 DIGITAL SERVO DIGITAL SIGNAL PROCESSOR D A CONNECTOR OUT R OUT L 73 75 ARF IC501 RF AND SERVO AMP 10 44 ARF PICK UP 36 35 VA VB VC 5 4 2 CD RESET STATUS SUBQ SQCK CD SENSE MLD MDDATA MCLOK REMOCON Only KD S600 MONO SD ST S METER AGC IF C FMOSC IC541 SERVO BTL DRIVER Pick up section Mecha section LOADING MOTOR FEED MOTOR SPINDLE MOTOR M SW1 4 Front circuit board section IC601 LCD...

Page 25: ...Tuner signal CD signal Front signal Rear signal Standard schematic diagrams Main amp section ...

Page 26: ...CD servo control section CD signal ...

Page 27: ...LCD key control section ...

Page 28: ...Printed circuit boards Main board ...

Page 29: ...LCD key control board Forward side Reverse side ...

Page 30: ...able as service parts Contents Exploded view of general assembly and parts list CD mechanism assembly and parts list Electrical parts list P acking materials and accessories parts list KD S550 3 2 3 4 3 6 3 10 KD S600 Areas suffix E Continental Europe J Nor thern America ...

Page 31: ...58 PRESET BUTTON 1 KD S600J S550E 22 FSXP3053 002 POWER BUTTON 1 23 FSXP3054 002 EJECT BUTTON 1 KD S600J S550E FSXP3054 001 EJECT BUTTON 1 KD S550 J 24 FSXP4005 019 OPERAT BUTTON 1 25 FSXP3068 001 PUSH BUTTON 1 26 FSXP2034 034 OPERAT BUTTON 1 CD FM AM 27 FSXP2044 001 OPERAT BUTTON 1 30 FSXP3055 001 DETACH BUTTON 1 31 FSKW3002 012 COMP SPRING 1 FOR DETACH BUTT 32 FSJK3026 001 CD LENS 1 33 FSJC1043 ...

Page 32: ...Exploded view of general assembly and parts list Block No M M M 1 ...

Page 33: ... 30310125T S L ARM SPRING 1 20 30310149T REAR DAM BKT Z 1 22 30310151T HUNG UP SP FZ 2 23 30310129T HUNG UP SP R 2 29 30300510T PU GEAR B 1 30 T T BASE Z 1 31 TURN TABLE Z 1 32 30310544T F M BASE Z 1 33 30310547T FD GR BLK Z 1 34 FD GR AZ 1 35 FD GR CZ 1 36 30310546T PU GUIDE Z 1 37 FD SCREW Z 1 38 30310533T THRUST SPR M 1 39 30310548T PU M NUT Z 1 40 30310512T NUT PUSH SPR PL 1 41 30310558T CLP A...

Page 34: ... ACTUATOR 1 92 30311129T LDG BELT 1 93 30311140T FRONT BRKT J 1 100 9C0620503T C B TAP SCREW 2 M2X5 101 9C2020401T C SCREW TS G 5 M2X4 102 9C4320403T C B TAP SCREW 4 M2X4 103 9C0117223T SCREW 2 M1 7X2 2 104 9C4217703T C TAP SCREW S3 1 M1 7X7 105 9C0320201T C TAP SCREW S3 1 M2X2 106 9C4920013T C TAP SCREW S3 2 M2X10 107 9C4920603T C TAP SCREW B3 4 M2X6 108 9P0220031T TAMS SCREW 2 M2X3 109 9C0314203...

Page 35: ... 43 50 41 42 47 46 103 30 49 49 31 d 112 55 56 47 107 131 36 107 107 d 38 32 54 34 33 130 106 29 108 106 46 135 104 107 40 63 39 a 51 52 109 132 35 37 86 113 113 134 87 80 117 92 84 54 78 c 79 88 93 22 22 89 62 81 82 85 83 114 115 116 102 101 108 100 133 57 CD mechanism assembly and parts list Block No M M M 2 Grease G 31SA G 31SA Bottom side RX 405 ...

Page 36: ...515 NCB21EK 103X C CAPACITOR C 516 QEKJ1AM 107Z E CAPACITOR 100MF 20 10V C 517 NCS21HJ 821X C CAPACITOR C 518 NCB21CK 224X C CAPACITOR C 519 NCB21EK 473X C CAPACITOR C 520 NDC21HJ 470X C CAPACITOR C 521 NCS21HJ 391X C CAPACITOR C 522 NCB21HK 223X C CAPACITOR C 523 NCB21HK 223X C CAPACITOR C 524 NCB21HK 102X C CAPACITOR C 525 NCB21HK 102X C CAPACITOR C 527 NCB21EK 223X C CAPACITOR C 541 QERF1CM 226...

Page 37: ... KD S550 E R 151 NRSA02J 102X MG RESISTOR R 152 NRSA02J 223X MG RESISTOR R 153 NRSA02J 333X MG RESISTOR R 154 NRSA02J 223X MG RESISTOR R 155 NRSA02J 102X MG RESISTOR R 156 NRS181J 223X MG RESISTOR R 157 NRSA02J 223X MG RESISTOR R 201 NRS181J 392X MG RESISTOR KD S600J S550J R 201 NRS181J 202X MG RESISTOR KD S550 E R 202 NRSA02J 562X MG RESISTOR KD S550 E R 202 NRSA02J 432X MG RESISTOR KD S600J S550...

Page 38: ... MG RESISTOR R 810 NRSA02J 104X MG RESISTOR R 811 NRSA02J 332X MG RESISTOR R 812 NRSA02J 332X MG RESISTOR R 813 NRSA02J 473X MG RESISTOR R 814 NRSA02J 473X MG RESISTOR R 815 NRSA02J 473X MG RESISTOR R 816 NRSA02J 473X MG RESISTOR R 817 NRS181J 472X MG RESISTOR R 818 NRS181J 473X MG RESISTOR KD S550 J E R 822 NRSA02J 222X MG RESISTOR R 823 NRSA02J 473X MG RESISTOR R 825 NRS181J 473X MG RESISTOR KD ...

Page 39: ...ESISTOR R 612 NRSA02J 222X MG RESISTOR R 613 NRSA02J 681X MG RESISTOR R 614 NRSA02J 511X MG RESISTOR R 615 NRSA02J 681X MG RESISTOR R 616 NRSA02J 911X MG RESISTOR R 617 NRSA02J 122X MG RESISTOR R 618 NRSA02J 152X MG RESISTOR R 631 NRSA02J 821X MG RESISTOR R 632 NRSA02J 271X MG RESISTOR KD S550 E J R 632 NRSA02J 391X MG RESISTOR KD S600 J R 633 NRSA02J 391X MG RESISTOR KD S600 J R 633 NRSA02J 271X ...

Page 40: ...Packing materials and accessories parts list Block No M M M 3 Block No M M M 4 A20 S600 only A23 Ver J only A17 A1 A5 A22 A24 A26 S600 only P7 S600 only A18 A21 S600 only KIT 1 A7 A11 A1 Ver E only A16 ...

Page 41: ...TY CARD 1 KD S600 J BT 52001 4S WARRANTY CARD 1 KD S550 J BT 54013 1 WARRANTY CARD 1 KD S550 E A 4 BT 20071B S JVC CENTER LIST 1 KD S550 J BT 20071B JVC CENTER LIST 1 KD S600 J A 5 BT 51020 2 J REGIST CARD 1 A 7 VKZ4027 202 PLUG NUT 1 A 8 VKH4871 001SS MOUNT BOLT 1 A 9 VKZ4328 001 LOCK NUT 1 FOR M5 A 10 WNS5000Z WASHER 1 A 11 FSKL4010 002 HOOK 2 A 14 VKZ4777 001 MINI SCREW 1 A 15 FSYA4001 001 SHEE...

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