JVC-MXG68V-cs-sm维修电路原理图.pdf

SERVICE MANUAL COMPACT COMPONENT SYSTEM ?No.20995 Jul. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. MX-G68V MX-G65V MX-G68V/MX-G65V Area Suffix USSingapore Safety precautions Preventing static electricity Important for laser products Disassembly method Wiring connection Adjustment method 1-2 1-3 1-4 1-5 1-18? 1-19 Flow of functional operation until TOC read Maintenance of laser pickup Replacement of laser pickup Troubleshooting Description of major ICs 1-23 1-24 1-24 1-25 1-3352 Contents CA-MXG68V CA-MXG65V CANCEL /DEMO PRESET PLAY optional Programmable input/output 1 3.3V power supply 0V ground DRAM data bus DRAM data bus DRAM data bus DRAM data bus Column address strobe input to lach data from DRAM, rising edge active MX-G68V/MX-G65V 1-49 Pin No.Pin Name 27VDD5V 2834 MA 3738MA 41RAS# 42 DAEMP 43,60,69,92 VDD 45 PCMCLK 46PCMWS 47 PCMSD 48 EMP 49VSYNC# 50 HSYNC# 51CSYNC 5255PD 57VCLK 5859PD 6162PDOPixel Data bus (2/2) Function 39CS# 7273SDI/O System data bus 76MCLK 77BUSY# 78ALE Main clock input, typically 40.5MHz I active HIGH, address latch enable for 8051 OBus BUSY, LOW indicates bus busy, open I 79SO OAddress select output, valid from IOAR+10h to IOAR+2fh (total 32 byteaddresses), active LOW 80 IRQ#O active LOW Interrupt request output, active when an interrupt event is triggered, 81WR# 82RD# 8385SA I System address bus I Read enable, active LOW Iwrite enable, active LOW 86 VDD5V3.3V power supply 8791SA ISystem address bus 94 ACLK 95ACLKO IOptional secondary clock for audio sampling rate, PCM clock OACLK output, ACLK and ACLKO are used for crystal input pins 96CDCLK 97 CDSD 98 CDWS 99 C2PO 100RESETISystem reset, active HIGH ICD bit clock input ICD serial data input I CD data word selector ICD data byte erasure flag type WE# I/O O O O O I O I/O O O O I/O O O O O Vertical synch, active LOW, input/output programmable, default in INPUT state Audio PCM clock output Audio PCM serial data output PCM channel word selector, active HIGH, programmable Audio emphasis flag, active HIGH DA emphasis input, active HIGH 3.3V power supply Row address strobe output, falling edge active Horizontal sync, active LOW, input/output programmable, default in INPUT state Composite sync signal, active LOW Pixel Data bus Pixel Data bus Video clock, usually 27MHz for TV scan, twice the luminance rate, input/output programmable, default in INPUT state Column address strobe output, falling edge active 5V power supply DRAM address bus DRAM address bus Write enableoutput, active LOW to indicate write operation to DRAM 40 63 BLANK#OComposite blank, active LOW HSYNC# are in input state VSS 6568,70SD 0V ground I/OSystem data bus 64,71,75,93 KB9226 MX-G68V/MX-G65V 1-50 W9952QP (MIC3) : TV encoder 2. Block diagram. 1. Pin layout FSADJ COMP VAA VREF_OUT VREF_IN NC CVBS_C AGND CVBS_Y AGND TEST HSYNCN VSYNCN VDD 5 6 7 8 9 10 11 12 13 4321323130 DGND W9952QP 14151617181920 26 25 24 23 22 21 27 28 29 SLEEP CBSWAP SVIDEO MASTER MODE3 MODE2 MODE1 MODE0 P7 P6 P5 P4 P3 P2 P1 P0 CLK DAC Color Space Converter Video Timing Generator Sync/ Blank/ Pedestal MASTER CBSWAP SLEEP TESTVSYNCN HSYNCN C VREF _OUT COMP Y P7:0 VREF_IN FSADJ CLK Bandgap Voltage Reference DTO 8 Up Sampl- ing 8 MODE3:0 SVIDEO Modu - lator + 1.3 MHz Low Pass Filter Mux Mux DAC + MX-G68V/MX-G65V 1-51 3. Pin function Pin No.SymbolI/O Function 21-28P7:0IYCrCb pixel inputs. They are latched on the falling edge of CLK. YCrCb input data conform to CCIR 601. 29CLKI2x Pixel clock input for 8-bit YCrCb data. 32VSYNCNI/OVertical sync input/output. VSYNCN is latched/output following the rising edge of CLK. 1HSYNCNI/OHorizontal sync input/output. HSYNCN is latched/output following the rising edge of CLK. 16MASTERIMaster/slave mode select. A logical high for master mode operation. A logical 0 for slave mode operation 15CBSWAPICr and Cb pixel sequence set up pin. A logic high swap the Cr and Cb sequence. 14SVIDEOISVIDEO select input pin. A logic high selects Y/C output. A logic low selects composite video output. 13SLEEPIPower save mode. A logic high on this pin puts the chip into power-down mode. 17-20Mode3:0IMode configuration pin. 2TESTITest pin. These pins must be connected to DGND. 9VREF_INIVoltage reference input. An external voltage reference must supply typical 1.235V to this pin. A 0.1uF ceramic capacitor must be used to decouple this input to GND. The decoupling capacitor must be as close as possible to minimize the length of the load. This pin may be connected directly to VREF_OUT. 8VREF_OUTOVoltage reference output. It generates typical 1.2V voltage reference and may be used to drive VREF_IN pin directly. 5FSADJ-Full-Scale adjust control pin. The Full-Scale current of D/A converters can be adjusted by connecting a resistor (RSET) between this pin and ground. The relationship is 6COMP-Compensation pin. A 0.1uF ceramic capacitor must be used to bypass this pin to VAA. The lead length must be kept as short as possible to avoid noise. 4CVBS_YOComposite/Luminance output. This is a high-impedance current source output. The output format can be selected by the PAL pin. The pin can drive a 37.5 W load. If unused , this pin must be connected directly to GND. 11CVBS_COComposite/Chroma output. This is a high impedance current source Output. The output format can be selected by the PAL pin. The pin can drive a 37.5 W load. If unused, this pin must be connected directly to GND. 10NC-No connection 31VDD-Digital power pin 30DGND-Digital ground pin 7VAA-Analog power pin 3,12AGND-Analog ground pin W9952QP MX-G68V/MX-G65V 1-52 W24257 (MIC2) : CMOS static RAM A4A3A2A1A0I/O2I/O1I/O3 VSS 1 32456 789 I/O4I/O5I/O6I/O8 I/O7A10OECSA11 232221201917181615 1011121314 282726 2524 A14 A12 A7A6A5 A9A8A13WEVDD 2. Pin function Pin No. SymbolI/O Function 1A14 2 A12 3A7 4 A6 5 A5 6 A4 I I I I I I I 7 A3 8 A2 9 A1 I I I 10A0 Address input Address input Address input Address input Address input Address input Address input Data Input/Output Data Input/Output Data Input/Output Data Input/Output Data Input/Output Data Input/Output Chip select Input Data Input/Output Data Input/Output Data Input/Output Address input Address input Address input 11 I/O1I/O I/O I/O I/O I/O I/O I/O I/O 12 I/O2 13 I/O3 14 VSS 15 I/O4 16 I/O5 17 I/O6 18 I/O7 19 I/O8 20 CSI 21 A10I I 22OE OOut put enable 23 A11 24 25 26 27 28 A9 A8 A13 VDD WE I Address input Address input Address input Address input Write Enable input Power Supply Ground I I II I 1. Pin layout CSOEWE HXX LHH LHH LLH L XL 3. Truth table MX-G68V/MX-G65V 1-53 200107(V) VICTOR COMPANY OF JAPAN, LIMITED PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.20995) MX-G68V/MX-G65V MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-1 Block diagram 1 2 KA9259 KB9226 KS9290 AIC3 AMP 4558 AUDIO OUT M66Q587 W9923 Video CD block Only U version FIC4/ HIC1/ JIC2 BA4560 MICON LC86654V-5V32 TO TUNER (RDS) SOURCE SELECTOR & E. VOL TDA7442D FIC1 4CH D KA9258D RF ANAL SSP KB9226 DSP 5L9290 KA3082 KA3082 MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-2 MX-G68V/MX-G65V CD signal TAPE P.B. signal MAIN signal TUNER signal Main section SHEET 1/6 MIC signal TAPE REC signal Standard schematic diagrams SHEET 3/6 SHEET 6/6 SHEET 4/6 SHEET 2/5 SHEET 3/6 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. SHEET 2/6 SHEET 4/6 RSW1 MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-3 Amplifier section SHEET 2/6 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. SHEET 1/6 SHEET 1/6 MAIN signal MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-4 MX-G68V/MX-G65V Display & system control SHEET 3/6 SHEET 4/6 SHEET 1/6 MIC signal MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-5 VCD servo section SHEET 4/6 SOUND signal CD signal DIGITAL signal MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-6 MX-G68V/MX-G65V VCD MPEG & micom section SHEET 5/6 MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-7 Tuner section TUNER signal SHEET 6/6 MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-8 MX-G68V/MX-G65V Main board Printed circuit boards MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-9 Amplifier board MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-10 MX-G68V/MX-G65V Front board Power / CD switch board FL display & system control board Front key switch board MX-G68V/MX-G65V ABCDEFG 1 2 3 4 5 2-11 Vido CD board MX-G68V/MX-G65V HABCDEFG 1 2 3 4 5 2-12 MX-G68V/MX-G65V Voice boardHeadphone board Primary part Secondary parts Power supply board Tuner board Front side Reverse side MX-G68V/MXG65V 3-1 PARTS LIST * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) CD changer mechanism assembly and parts list (Block No.MA) CD mechanism assembly and parts list (Block No.MB) Cassette mechanism assembly and parts list (Block No.MP) Electrical parts list (Block No.0105) Packing materials and accessories parts list (Block No.M3,M5) MX-G68V MX-G65V 3- 3 3- 5 3- 7 3- 8 3-10 3-22 Area suffix US - Singapore UX - Saudi Arabia MX-G68V/MXG65V 3-2 ABCDEFG 1 2 3 4 5 3-3 MX-G68V/MX-G65V MIC J.board 48 b b b b b b b b b b b b b b b 9 50 CD changer unit Front key switch board CD key switch board b b b b b b b b b b 46 51 b b b 36 b 42 b 41 40 e c 57 59 c c e e e 38 37 b b 28 27 32 31 30 b 6 d 15 16 b 18 17 12 13 19 20 2 4 1 3 8 7 b 10 5 d 22 b A 21 24 26 22 23 Tuner board Front / display board Trans. board Main board 43 c 49 47 58 39 b b b b 35 A H.phone J.board b Cassette mechanism assembly Voice Cancel board L/Caution Voltage Selector # # b 23 29 Exploded view of general assembly and parts list Block No.M MM1 60 MK-G68V/MX-G65V 3-4 MK-G68V/MXG65V ItemParts numberParts nameAreaA Parts list (Genaral assembly) QtyDescription Block No. M1MM A6002-000126SCREW2FH M3*10 BLK B6003-000276SCREW78BH M3*10 YEL CAH60-10107ASCREW4M4*6 YEL D6003-000277SCREW2BH M3*12 YEL E6002-000398SCREW3BH M3*6 YEL F6003-000278SCREW4 1AH64-01141ADOOR WINDOW1A 2AH64-01142ADOOR WINDOW1B 3AH64-01128DCASSETTE DOOR1A MX-G68V AH64-01128BCASSETTE DOOR1A MX-G65V 4AH64-01129DCASSETTE DOOR1B MX-G68V AH64-01129BCASSETTE DOOR1B MX-G65V 5AH61-00552ADOOR SPRING1A 6AH61-00553ADOOR SPRING1B 7AH64-01140LVFD WINDOW1MX-G68V AH64-01140KVFD WINDOW1MX-G65V 8AH63-00252AVFD SHEET1 9AH64-01126BTRAY DOOR1 10AH64-00462BJVC MARK1 12AH64-01135BVOLUME KNOB1 13AH61-00659BVOLUME CAP1 15AH61-00657CMIC CAP1MX-G68V AH61-00657BMIC CAP1MX-G65V 16AJ64-01136BMIC KNOB VOL1 17AH64-01134BWOOFER KNOB1 18AH67-00105AWOOFER LENS1 19AH64-01133BS/MODE KNOB1 20AH67-00104AS/MODE LENS1 21AH64-01123JFRONT CABINET1MX-G65V AH64-01123QFRONT CABINET1MX-G68V 22AH61-80030ADAMPER2ASSY 23AH95-50001ALATCH2ASSY 24AH64-01130BPOWER KNOB1 26AH67-00106APOWER LENS1 27AH67-00103BFUNCTION LENS1 28AH61-00661AFUNCTION HOLDER1 29AH64-01139BRDS KNOB1 30AH64-01138BMAIN KNOB1 31AH67-00102BCD LENS1 32AH64-01132BDISC KNOB1 35AH64-01137BSTOP KNOB1 36AH61-00662AVFD HOLDER1 37AH61-40014ARIVET SUPPORT1 38AH61-00021BPCB SUPPORT1 39AH64-30416CBOTTOM CABINET1 40AH62-00043BHEAT SINK1 41AH61-00655AH/SINK BRKT1L 42AH61-00656AH/SINK BRKT1R ItemParts numberParts nameAreaA Parts list (General assembly) QtyDescription Block No. M1MM 43AH64-01125JREAR CABINET1 46AH63-00250AREAR COVER1 47AH39-00257GPOWER CORD A 1 48AH64-30390FTOP CABINET1MX-G65V AH64-30390GTOP CABINET1MX-G68V 49AH62-00042AHEAT SINK14959 50AH68-50275DCD STICKER1 51AH68-00897ERATING LABELUS1MX-G68V AH68-00897FRATING LABELUX1MX-G68V AH68-00897CRATING LABELUS1MX-G65V AH68-00897DRATING LABELUX1MX-G65V 57AH26-00104APOWER TRANS A 1 58AH68-50282KCAUTION LABEL1 59AH61-00721AHOLDER1 60AH40-00011ATUNER BLOCK1 MX-G68V/MXG65V 3-5 12 26 CD changer mechanism assembly and parts list Block No.M MMA 1 2 8 7 3 4 6 5 27 19 20 21 10 9 11 14 23 25 24 17 18 22 16 15 13 Base main Tray stopper VCD board MX-G68V/MXG65V 3-6 ItemParts numberParts nameAreaA Parts list (CD changer mechanism) QtyDescription Block No. MAMM 1AH66-80022ASLIDE CAM1ABS HF-380 NTR 2AH66-60034ABELT LOAD1CR 3AH66-20186AGEAR PULLEY1POM (M90-44)WHT 4AH66-20187AGEAR-LOAD1POM (M90-44)BLK 5AH66-20188AGEAR-CAM1POM(M90-44)WHT 6AH66-20189AGEAR-TRAY1POM(M90-44)BLK 7AH66-20190AGEAR-CONVERTOR1POM (M90-44) WH 8AH66-20191AGEAR-SYNCRO1ABS HF-380 NTR 9AH66-20192AGEAR-WORM1POM (M90-44)WHT 10AH31-12001ALOADING MOTOR1FF-030PN-09120 11AH66-20193AGEAR-ROULETTE1POM(M90-44)BLK 12AH66-90056ATRAY-ROULETTE1ABS XR-401 BLK 13AH66-90055ATRAY DISC1ABS XR-401 BLK 14AH32-10001FSENSOR1KPI-L06 15AH61-20428A-1BASE MAIN1 163302-000159MAGNET-FERRITE1 17AH66-90053ATABTE-CHUCK UNI1 18AH63-00068BSHEET CHUCK1 193404-000101SWICH MICRO1MLS-24 20AH31-10021ADC MORTOR1 21AH66-10008APULLEY-MOTOR1 22AH73-10031ARUBBER-CD1 23AH91-60150CSP MOTOR ASSY1CMS-D73SG6U 24AH66-30098ALEVER-LIFTER1 25AH30-00007ACD PICKUP1SOH-AD3 26AH73-10034ARUBBER-CD(G)1 27AH61-00255ABRKT CHUCK1SECL 0.8T MX-G68V/MXG65V 3-7 1 2 CDP-DECK ASSY CD mechanism assembly and parts list Block No.M MMB ItemParts numberParts nameAreaA Parts list(CD mechanism) QtyDescription Block No. M2MM 1AH30-00007AOPTICAL PICK-UP1 2AH91-60150C1 SOH-AD3 CMS-D73SG6U MX-G68V/MXG65V 3-8 7 13 11 24 19 15 18 7 17 16 23 24 6 5 26 14 8 22 1 25 15 18 25 26 22 21 17 16 2 1 27 9 19 12 4 8 20 27 Cassette mechanism assembly and parts list Block No.M MMP Note: Parts listed on the Parts List below can be supplied. However, parts that are not listed below cannot be supplied individually but only by purchasing the whole Cassette Mechanism Assembly Unit. (When ordering, use the Parts No. AH59-00126A for Cassette Mechanism Assembly Unit.) MX-G68V/MXG65V 3-9 ItemParts numberParts nameAreaA Parts list (Cassette machanism) QtyDescription Block No. MPMM 1AH81-00472APB HEAD2TC881CB067P 2AH81-00472BE HEAD1TC2131 4AH81-00472WMOTOR ASSY1SHU2L61 5AH81-00472CMAIN BELT B102-084-4204 6AH81-00472DMAIN BELT A102-084-4202 7AH81-00472XFR BELT202-083-4188 8AH81-00474ASOLENOID250-093-4145 9AH81-00472YPCB ASSY150-093-4558 11AH81-00473AHOUSING116FESTVKN 12AH81-00473DBOX SWITCH550-219-4028 13AH81-00472KFLYWHEEL B150-093-3441 14AH81-00472HFLYWHEEL A150-093-3440 15AH81-00472RBRAKE LEVER250-259-3246 16AH81-00472PREEL F CAP450-228-4020 17AH81-00473FDESK SPRING 02401-081-4601 18AH81-00472QREEL DESK GEAR450-222-4245 19AH81-00472VCLUTCH ASSY250-093-4503 20AH81-00473BMODE SWITCH4MSW17220MVQ1 MX-G68V/MXG65V 3-10 ItemParts numberParts nameArea Electrical parts list (Main board) Remarks Block No.01 A ItemParts numberParts nameAreaRemarksA AUX3722-000377RCA JACK EC 12202-000148C.CAPACITOR EC 22202-000817C.CAPACITOR EC 32401-002180E.CAPACITOR EC 42401-002180E.CAPACITOR EC 52202-000797C.CAPACITOR EC 62202-000809C.CAPACITOR EC 72202-000797C.CAPACITOR EC 82401-001889E.CAPACITOR EC 92401-000907E.CAPACITOR EC 102401-001465E.CAPACITOR EC 112202-000854C.CAPACITOR EC 122202-000797C.CAPACITOR EC 152202-000797C.CAPACITOR ECW 13711-001062CONNECTOR ED 10401-000101DIODE ED 20401-000101DIODE EIC 11204-001730IC