Jvc-MXJ-200-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COMPACT COMPONENT SYSTEM No.20860 Aug. 2000 COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. Printed in Japan 200008(V) VICTOR COMPANY OF JAPAN, LIMITED AUDIO TW2111A, Reverse ; TW2121A Fast Forward and Rewind ; TW2231A 9. Test disc : CTS-1000(12cm),GRG-1211(8cm) 10. Jitter meter Measurem

2、ent conditions Power supply voltage AC230V(50Hz) Measurement output terminal : Speaker out : TP101(Measuring for TUNER/DECK/CD) : Dummy load 6ohm Radio input signal AM modulation frequency : 400Hz Modulation factor : 30% FM modulation frequency : 400Hz Frequency displacement : 22.5kHz Frequency Rang

3、e AM522kHz1629kHz LW144kHz288kHz FM87.5MHz108MHz : except EE 65MHz74MHz/87.5MHz108MHz : only EE Standard measurement positions of volume and switch Power : Standby (Light STANDBY Indicator) S,A,BASS : OFF Sound mode : OFF Main VOL. : 0 Minimum Travers mecha set position : Disc 1 Precautions for meas

4、urement 1. Apply 30pF and 33kohm to the IF sweeper output side and 0.082 F and 100kohm in series to the sweeper input side. 2. The IF sweeper output level should be made as low as possible within the adjustable range. 3. Since the IF sweeper is a fixed device, there is no need to adjust this sweeper

5、. 4. Since a ceramic oscillator is used, there is no need to perform any MPX adjustment. 5. Since a fixed coil is used, there is no need to adjust the FM tracking. 6. The input and output earth systems are separated. In case of simultaneously measuring the voltage in both of the input and output sys

6、tems with an electronic voltmeter for two channels, therefore, the earth should be connected particularly. 7. In the case of BTL connection amplifier, the minus terminal of speaker is not for earthing. Therefore, be sure not to connect any other earth terminal to this terminal. This system is of an

7、OTL system. MX-J200 1-22 Arrangement of adjusting positions Cassette mechanism section (Mechanism A section)Cassette mechanism section (Back side) Head azimuth adjusting screw (Forward side) Head azimuth adjusting screw (Reverse side) Head azimuth adjusting screw (Forward side) Head azimuth adjustin

8、g screw (Reverse side) Playback head Playback,recording and eraser heads or playback head 1.Playback the test tape VT703(10kHz). 2.With the playback mechanism or recording Thermal shutdown D.BUF:Drive buffer 1.Pin layout & Block diagram 2.Pin function Function Function 1 2 3 4 5 6 7 8 9 10 11 12 13

9、14 CH1-OUTA CH1-OUTB CH1-INA CH1-INB Tr-B Vreg OUT MUTE GND CH2-INB CH2-INA CH2-OUTB CH2-OUTA GND OPOUT Driver CH1 - output Driver CH1 + output Driver CH1 input Driver CH1 gain adjustment Input terminal Connect to the base of external Tr Fixed voltage output Mute control terminal GND Driver CH2 gain

10、 adjustment Input terminal Driver CH2 input Driver CH2 + output Driver CH2 - output Sub-slate GND Operation amplifier output Pin NO. Pin NO. Symbol Symbol 15 16 17 18 19 20 21 22 23 24 25 26 27 28 OP IN(-) OP IN(+) CH3-OUTA CH3-OUTB CH3-INA CH3-INB Vcc Vcc BAIS IN CH4-INB CH4-INA CH4-OUTB CH4-OUTA G

11、ND Operation amplifier - input Operation amplifier + output Driver CH3 - output Driver CH3 + output Driver CH3 input Driver CH3 gain adjustment Input terminal Power supply terminal Power supply terminal Bias amplifier input terminal Driver CH4 gain adjustment Input terminal Driver CH4 input Driver C

12、H4 + output Driver CH4 - output Sub-slate GND Level shift Level shift Level shift Level shift BA6897FP-W (IC801) : 4channel driver MX-J200 1-28 1.Pin layout 2.Block diagram AN8806SB-W (IC601) : RF&SERVO AMP PD 1 LD 2 LDON 3 LDP 4 VCC 5 RF- 6 RF OUT 7 RF IN 8 C.AGC 9 ARF 10 C.ENV 11 C.EA 12 CS BDO 13

13、 BDO 14 CS BRT 15 OFTR 16 /NRFDET 17 GND 18 36 PDAC 35 PDBD 34 PDF 33 PDE 32 PDER 31 PDFR 30 TBAL 29 FBAL 28 EF- 27 EF OUT 26 TE- 25 TE OUT 24 CROSS 23 TE BPF 22 VDET 21 LD OFF 20 VREF 19 ENV 302425262322143 33 32 34 31 36 35 13 14 15 16 20 2 21 629728 27891017111219 ENV CURCUITRF DET AGC EQ BDO OFT

14、R - + VCBA VCBA VCBA + - + - - + - + - + - + - + - + - + - + - + - + - + + - + - - +- + VCBA MX-J200 1-29 35 36 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3. Pin function PD AC FBAL TBAL PDFR PDER PDF PDE PD BD TE BPF VDET CROSS TE OUT TE- FE OUT FE-

15、 /NRFDET GND LD OFF VREF ENV OFTR C.AGC ARF C.ENV C.EA CS BDO BDO CS BRT LD LD ON LDP VCC RF- RF OUT RF IN PD Pin No. symbolI/O I O I - - I O I I/O O I/O I/O I/O O I/O O O - O O - O I O O I O I I I I/O I/O I I I I Function APC amp . Input terminal APC amp . Output terminal LD ON/OFF control terminal

16、 Connect to GND Power supply RF amp . Reversing input terminal RFamp . Output terminal AGC input terminal AGC loop filter connection terminal ARF output terminal RF detection capacity connection terminal HPF-amp capacity connection terminal Capacity connection terminal for RF discernment side envelo

17、pe detection BDO output terminal Capacity connection terminal for RF discernment side envelope detection OFTR output terminal RFDET output terminal Connect to GND 3TENV output terminal VREF output terminal APC OFF control terminal VDET output terminal VDET input terminal CROSS output terminal TE amp

18、 . Output terminal FE amp . Reversing input terminal FE amp . output terminal FE amp . Reversing input terminal F.BAL control terminal T.BAL control terminal I-V amp conversion resistance adjustment terminal I-V amp conversion resistance adjustment terminal I-V amp input terminal I-V amp input termi

19、nal I-V amp input terminal I-V amp input terminal MX-J200 1-30 1. Pin layout 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 XT FM/AM CE DI CLOCK DO FM/ST/VCO AM/FM SDIN XT GND LPFOUT LPFIN PD VCC FMIN AMIN IFCONT IFIN Pin No. 1 2 3 4 5 6 7 8 9 10 11 Pin No. 12 13 14 15 16 17 18 19 20 21 22

20、 Symbol XT FM/AM CE DI CLOCK DO FM/ST/VCO AM/FM LW MW SDIN Symbol IFIN IFCONT AMIN FMIN VCC PD LPFIN LPFOUT GND XT Function Xtal oscillator connect (75kHz) LOW:FM mode When data output/input for 4pin(input) and 6pin(output): H Input for receive the serial data from controller Sync signal input use D

21、ata output for Controller Output port Low: MW mode Open state after the power on reset Input/output port Input/output port Data input/output Function IF counter signal input IF signal output Not use AM Local OSC signal output FM Local OSC signal input Power suplly(VDD=4.5-5.5V) When power ON:Reset c

22、ircuit move PLL charge pump output(H: Local OSC frequency Height than Reference frequency. L: Low Agreement: Height impedance) Input for active lowpassfilter of PLL Output for active lowpassfilter of PLL Connected to GND Xtal oscillator(75KHz) I/O I O I I I O O O I/O I/O I/O I/O I O - I I - O I O -

23、I Reference Driver Phase Detector Charge Pump Unlock Detector Universal Counter Swallow Counter 1/16,1/17 4bit 12bit Programmable DriverS Swallow Counter 1/16,1/17 4bit Data Shift Register & Latch Power on Reset C2B I/F 1/2 7821113 21 17 6 5 4 3 15 16 22 1 18 19 20 12 2. Block diagram 3. Pin functio

24、n LC72136N (IC2) : PLL Frequency Synthesizer MX-J200 1-31 L-IN1 L-R 0.47 F SUPPLY VS AGND CREF TREBLEBASS BIN(L) MUTE I2C BUS DECODER + LATCHES SPKR ATT TREBLEBASS 5.6nF MUTE SPKR ATT SCL SDA DIG GND ROUT LOUT 22 F + - + - + R-IN4 0.47 F 50K PS1 90Hz 100nF PS1 RPS1 SYMULATED MUSIC MUSIC/ SYMULATED O

25、FF MIXING AMP LPF 9KHz EFFECT CONTROL MIXING AMP 1.2nF LP 4 17 28 24252316 14 27 12 21 22 20 26 TREBLE-R 5.6nF TREBLE-L 100nF 5.6K 100nF BOUT(L) 100nF100nF 5.6K BIN(R)BOUT(R) 79dB CONTROL + - + - 79dB CONTROL 15 1319 18 50K 0.47 F 50K 0.47 F 50K 0.47 F 50K 0.47 F 50K 0.47 F 50K 0.47 F 50K 31.5dB con

26、trol R-IN3 R-IN2 R-IN1 31.5dB control L-IN2 L-IN3 L-IN4 5 6 7 3 2 1 Vref OFF SURR OFF SURR RB FIX FIX VAR RB FIX VAR L+R 30K 30K 98 2.2 F 1110 2.2 F MUXOUT(R) IN(R) MUXOUT(L) IN(L) BLOCK DIAGRAM L_IN3 L_IN4 MUXOUTL IN(L) MUXOUT(R) BIN(R) IN(R) BOUT(R) BIN(L) 1 3 2 4 5 6 7 8 9 BOUT(L) LP PS1 TREBLE(R

27、) TREBLE(L) SCL SDA DIG-GND CREF23 22 21 20 19 17 18 16 15 10 11 12 13 14 28 27 26 25 24 R_IN3 R_IN2 R_IN1 L_IN1 L_IN2VS AGND ROUT LOUT R_IN4 PIN CONNECTION1. 2. TDA7442D (IC301) : Souse select MX-J200 1-32 MN35510 (IC651) : DIGITAL SERVO&DIGITAL SIGNAL PROCESSER 1. Terminal Layout 20 1 41 60 21 40

28、80 61 2.Block Diagram O F T / R F D E B D O V D E T T R C R S R F E N V T E F E INPUTSERVO TIMING GENERATOR A/D COVERTER / T E S T / R S T D V S S 1 D V D D 1 V S S V D D CLV SERVO MICRO COMPUTER INTERFACE VCO ITUNING GENERATION PITCH CONTROL STAT CK384(EFM) VCOF BYTCK SMCK FCLK CSEL MSEL X2 X1 PCK

29、EFM PLLF DSLF IREF DRF ARF RSEL PSEL MLD MCLK MDATA DSL. PLL VCO AVDD2 SUB CODE BUFFER SSEL SQCK SUBQ AVDD2 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

30、) IOSEL DIGITAL DEEMPHSIS 8TIMES OVER SAMPUNC DIGITAL FILTER1BIT DAC LOGIC S PEM (R) PEM (L) DIGITAL AUDIO INTERFASE DIGITAL AUDIO INTERFASE INTER POLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECTIVE AUTO CUE D/A CONVERTER OUTPUTPORT AVSS1 AVDD1 OUTR OUTL FLAG IPFLAG TX ECM PC LRCK SRDATA BCLK DM

31、UTE TRKV KICK VREF TRVSTR ECS TVD TRD FOD TBAL FBAL TOFS TES /TLOCK /FLOCK PLAY LDON WVEL SENSE MX-J200 1-33 3. Description Pin No. symbol I/O O O O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Pin No. symbolI/O 42 41 43 44 45 46 47 4

32、8 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 74 75 76 77 78 79 80 O II II O BCLK LRCK SRDATA DVDD1 DVSS1 TX MCLK MDATA MLD I I I SENSE FLOCK TLOCK BLKCK SQCK O O O O O O I III I SUBQ DMUTE STATUS I O O RST SMCK PMCK TRV TVD PC ECM ECS KICK TRD O O O O O O O I I I FOD

33、VREF FBAL TBAL FE TE I I I I IRF ENV VDET OFT TRCRS I O RFDET BDO LDON Description Not used Not used Not used Connected to GND Digital audio interface output Power supply (Digital) com command clock signal input com command load signal input com command data input Not used Not used (Data is latched

34、at signals rising point) Not used sub-code block clock signal output Outside clock for sub-code Q resister input Sub-code Q -code output Connected to GND Status signal (CRC,CUE,CLVS,TTSTOP,ECLV,SQOK) Reset signal input (L:Reset) Not used Not used Traverse enforced output Traverse drive output Not us

35、ed Spindle motor drive signal (Enforced mode output) 3-State Spindle motor drive signal (Servo error signal 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 adjus

36、t 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) Track cross signal input RF detect signal input(L:detect) BDO input pin(L:detect) Laser

37、ON signal output(H:on) I I I I/O I/O IIIIII Description Not used Not used TES PLAY WVEL ARF IREF DRF DSLF PLLF Tracking error shunt signal output(H:shunt) RF signal input Reference current input pin Bias pin for DSL Not used Loop filter pin for DSL Loop filter pin for PLL Power supply(Analog) Connec

38、ted to GND(Analog) Not used Not used Not used Not used Not used IIII Connected to GND(for Xtal oscillation circuit) I O I O O IIIIIIIIIIIIIIII Not used Not used Not used Not used Not used Not used Not used Not used Not used Pull up Connected to GND Connected to GND Connected to GND pull up pull up p

39、ull up Power supply(Digital) Lch audio output Connected to GND Rch audio output Power supply(for Xtal oscillation circuit) Input of 16.9344MHz Xtal oscillation circuit Output of Xtal oscillation circuit VCOF AVDD2 AVSS2 EFM PCK PDO SUBC SBCK VSS XI X2 VDD BYTCK CLDCK FCLK IPPLAG FLAG CLVS CRC DEMPH

40、RESY IOSEL TEST AVDD1 OUT L AVSS1 OUT R RSEL SSEL MSEL PSEL CSEL MX-J200 1-34 UPD78055GCA37 (IC251) : CD Changer control Pin No. symbolI/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1926 2729 3032 33 34 35 36 37 38 39 40 Pin No. SymbolI/O 42 41 43 44 45 46 47 4859 60 61 62 63 64 65 66 67 68 69 70

41、71 72 73 74 75 76 77 78 79 80 DEMPH DEMPHO OS OFF AVSS MCS MRDY AVREF1 KCMND MSTAT I I I I KCLK SUB RST SQCK DMUTE O O O O O I I I I I I I I I I MREQ VCDEMP SRDATA SRCLK CAM07 13SSW 31MSW VSS DISC SHIFT MNT MNT1 MNT2 VCORST LMUP Description Mode control select Deemphasis input Deemphasis output On s

42、creen display on/off SUB Ready AV reference Connected to GND SVC3 Status input input SVC3 Serial data out put Sub-code Q code output SVC3 Serial clock input Digital mute Reset signal input (L : Reset) Outside clock for sub-code Q resister input Not used Not used Not used Not used CAM SW input Sub tr

43、ay SW input Sub tray SW output Connected to GND Disk sensor Test mode(Not used) Test mode(Not used) Test mode(Not used) Test mode(Not used) Not used L CAM up L CAM down R CAM down R CAM up I I I I I I I I I Description LM DOWN RM UP RMDOWN CHECK CHECK1 CHECK2 CHECK3 connected to GND I O O O I I O O

44、O Statues signal Not used Not used BTL Driver mute com command clock signal input com command data input com command lode signal input Power supply (for X tal Q oscillation circuit) Out of X tal oscillation circuit Power ON/OFF Input of 16.9344MHz X tal oscillation circuit connected to GND Not used

45、Rest SW input A/D converter power supply Not used Not used Not used Data select out Not used Not used Not used Not used Digital GND VC3 reset outRESET STAT HREG HRDY DRMUTE MCLK MDATA MLD VDD X2 X1 IC XT2 REST AVDD AVREF SSEL P ON IOSEL PSEL MSEL 2. Pin function - - I I - - - - - - - O O - - - - - -

46、 1. Terminal Layout 20 1 41 60 21 40 80 61 SERVICE MANUAL COMPACT COMPONENT SYSTEM No.20860 Aug. 2000 COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. Printed in Japan 200008(V) VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-m

47、achi,Maebashi-city,371-8543,Japan MX-J200 No.20860 MX-J200MX-J200 Contents Safety Precautions Important for laser products Preventing static electricity Disassembly method Adjustment method Flow of functional operation until TOC read Maintenance of laser pickup Replacement of laser pickup Descriptio

48、n of major ICs 1-2 1-3 1-4 1-5 1-21 1-24 1-25 1-25 1-26 Area Suffix B E EN EE EV U.K. Continental Europe Northern Europe Russia Eastern Europe COMPACT DIGITAL AUDIO CD3 CD2 CD1 STANDBY VOLUME CD1 CD2 CD3 PLAY & EXCHANGE FM /AM CD PLAYREC/PLAY AUTO REVERSE EJECT COMPACT DIGITAL AUDIO TAPE COMPU PLAY CONTROL FULL LOGIC CONTROL 1 BIT DUAL D/A CONVERTER AUX PHONES MX-J200 + + EJECT REC START/STOP CLOCK/TIMERDISPLAYSETCANCEL DEMO DUBBING CD REC START PROGRAM RANDOM REPEAT PRESET TUNNER REVERSE MODETAPE A/B SOUND MODEACTIVE BASS EX 1 /CLEAR