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JVC BC72 Service Manual

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  • Page 2 VS-DT7R SERVICE MANUAL COMPACT COMPONENET SYSTEM VS-DT7R COMPACT COMPONENT SYSTEM STANDBY/ON PLAY MODE REPEAT FM MODE BASS TREBLE MD/AUX CANCEL TA/NEWS SEARCH SELECT /INFO DISPLAY FM/AM DIMMER SLEEP MODE AHB PRO DISPLAY CLOCK OPEN/ /TIMER CLOSE VOLUME SP-VSDT6 CA-VSDT7R SP-VSDT6 Area suffix Continental Europe Northern Europe...

  • Page 3: Table Of Contents

    VS-DT7R TABLE OF CONTENTS Important safety precautions ............. 3 Safety Precautions .

  • Page 4: Important Safety Precautions

    VS-DT7R SECTION 1 Important safety precautions 1.1 Safety Precautions (1) This design of this product contains special hardware and Measure the AC voltage across the resistor with the AC many circuits and components specially for safety purposes. voltmeter. For continued protection, no changes should be made to the Move the resistor connection to each exposed metal original design unless authorized in writing by the part, particularly any exposed metal part having a return...

  • Page 5: Preventing Static Electricity

    VS-DT7R 1.5 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.

  • Page 6: Important For Laser Products

    VS-DT7R 1.8 Important for laser products (1) CLASS 1 LASER PRODUCT (5) CAUTION : If safety switches malfunction, the laser is able (2) DANGER : Invisible laser radiation when open and inter to function. lock failed or defeated. Avoid direct exposure to beam. (6) CAUTION : Use of controls, adjustments or performance (3) CAUTION : There are no serviceable parts inside the of procedures other than those specified herein may result...

  • Page 7: Disassembly Method

    VS-DT7R SECTION 2 Disassembly method 2.1 Main body section 2.1.1 Removing the top lens [VS-DT9R only] (See Figs.2-1) From the top side of the main body, remove the four screws A attaching the top lens. Fig.2-1 2.1.2 Removing the bottom panel (See Figs.
  • Page 8 VS-DT7R 2.1.4 Removing the CD mechanism assembly (See Fig. 2-5.) • Remove the top lens. [VS-DT9R only] • Remove the bottom panel. • Remove the top panel. (1) From the top side of the main body, disengage the claw c of the CD mechanism assembly and then remove the push button.
  • Page 9 VS-DT7R 2.1.6 Removing the tuner board (See Figs. 2-8 and 2-9.) • Remove the top lens. [VS-DT9R only] • Remove the bottom panel. • Remove the top panel. • Remove the CD mechanism assembly. (1) Disconnect the card wire from connector CN111 on the main board.
  • Page 10 VS-DT7R 2.1.8 Removing the main board (See Figs. 2-10 and 2-11.) • Remove the top lens. [VS-DT9R only] • Remove the bottom panel. • Remove the top panel. • Remove the CD mechanism assembly. • Remove the front panel assembly. •...
  • Page 11 VS-DT7R 2.1.10 Removing the power transformer (See Fig. 2-13.) • Remove the top lens. [VS-DT9R only] • Remove the bottom panel. • Remove the top panel. • Remove the CD mechanism assembly. (1) Disengage the wire clamp and tie band bundling the wires of the power transformer.

  • Page 12: Front Panel Assembly Section

    VS-DT7R 2.2 Front panel assembly section • Remove the top lens. [VS-DT9R only] • Remove the bottom panel. • Remove the top panel. • Remove the CD mechanism assembly. • Remove the front panel assembly. 2.2.1 Removing the front switch board (See Fig.

  • Page 13: Cd Mechanism Assembly Section

    VS-DT7R 2.3 CD mechanism assembly section 2.3.1 Removing the LED board (See Fig. 2-21.) From the top side of the CD mechanism assembly, disengage the claw a of the top chassis attaching the LED board and then remove the LED board. Fig.2-21 2.3.2 Removing the CD mechanism assembly (See Fig.
  • Page 14 VS-DT7R 2.3.4 Removing the traverse mechanism assembly (See Fig. 2-24.) • Remove the CD servo board. (1) Remove the two screws C attaching the CD servo board bracket. (2) Remove the two screws D attaching the traverse mecha- nism assembly. (3) Disengage the claw e attaching the traverse mechanism assembly and then take out the traverse mechanism as- sembly.
  • Page 15 VS-DT7R 2.3.6 Attaching the pickup unit (See Figs. 2-27 and 2-28.) [Reference] Refer to the explanation of "Removing the pickup unit" on the preceding page. (1) Attach the P.S. spring and rack plate to the pickup unit. (2) Insert the shaft into the pickup unit. (3) Engage the section f of the pickup unit with the traverse mechanism assembly first, and set the both ends of the shaft in the grooves g and h.
  • Page 16 VS-DT7R 2.3.9 Removing the switch board (See Fig.2-30.) • Remove the CD mechanism assembly. (1) From the top side of the CD mechanism assembly, re- move the screw K attaching the switch board. (2) Lift the switch board slightly and then remove the wire from connector CN101 on the switch board.

  • Page 17: Adjustment Method

    VS-DT7R SECTION 3 Adjustment method 3.1 Flow of functional operation until TOC read...

  • Page 18: Maintenance Of Laser Pickup

    VS-DT7R 3.2 Maintenance of laser pickup 3.3 Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expired,the following symptoms will appear.

  • Page 19: Description Of Major Ics

    VS-DT7R SECTION 4 Description of major ICs 4.1 MN101CP30AKJ (IC701) : System control microcomputer 4.1.1 Terminal layout 4.1.2 Pin function Pin No. Symbol Function THERM Temperature detection, ON/OFF control of FAN_SW signal(pin 57) KEY1 Key switch input of the main body KEY2 Key switch input of the main body VERSION...

  • Page 20: Kia78S06P (Ic702) : Regulator

    VS-DT7R LOMUTE Line out mute signal, MUTE=L TREMCONT Remote controller effective signal for horizontal establishment, L : effective state Not connect Detecting signal for horizontal or vertical establishment Not connect Not connect Not connect CDRSI CD reset output (Connect to FMU-F1.) Not connect BLCTL Not connect...

  • Page 21: Mn662790Rsc (Ic651) : Digital Servo & Digital Signal Prossesor

    VS-DT7R 4.3 MN662790RSC (IC651) : Digital servo & Digital signal prossesor 4.3.1 Terminal layout 4.3.2 Pin function Pin No. Symbol Function BCLK Bit clock output for SRDATA LRCK LR signal separation output SRDATA Serial data output DVDD1 Power supply for digital circuit DVSS1 GND for digital circuit Digital audio ineterface output...
  • Page 22 VS-DT7R LDON Not use PLLF2 Not use DSLBDA Not use WVEL Not use RF signal input IREF Referrence current input Bias pin for DSL DSLF I/O Loop filter pin for DSL PLLF I/O Loop filter pin for PLL VCOF I/O Loop filter pin for VCO AVDD2 Power supply for analog circuit AVSS2...

  • Page 23: Upc78L05J-T (Ic191) : Three Terminal Voltage Regulator

    VS-DT7R 4.4 UPC78L05J-T (IC191) : Three terminal voltage regulator 4.4.1 Terminal layout 4.4.2 Circuit diagram 4.5 UPD780024AGKB62 (IC251) : Unit microcomputer 4.5.1 Terminal layout 4.5.2 Pin function Pin No. Symbol Function P50/A8 Connect to ground P59/A9 Not use Synchronous/asynchronous output MRDY Ready signal input CDINDEX...
  • Page 24 VS-DT7R PCHK Voltage monitor (for safety) P14/ANI4 Connect to ground P13/ANI3 Connect to ground P12/ANI2 Connect to ground /REST Rest switch input Mechanism switch (Photo sensor) AVREF Reference voltage for analog circuit AVDD Power supply terminal for analog circuit /RESET CD control reset input Not use Connect to power supply...

  • Page 25: La4905 (Ic301) : 2Ch Btl Power Ic

    VS-DT7R 4.6 LA4905 (IC301) : 2ch BTL power IC 4.6.1 Terminal layput 4.6.2 Block diagram 4.7 LB1641 (IC108) : DC motor driver 4.7.1 Terminal layout 4.7.2 Pin function Input Output Mode OUT1 OUT2 Brake Clockwise Counterclockwise Brake...

  • Page 26: Mn101Cp35Dkb (Ic811) : Fl Driver Microcomputer

    VS-DT7R 4.8 MN101CP35DKB (IC811) : FL driver microcomputer 4.8.1 Terminal layout 4.8.2 Pin function Pin No. Symbol Function Not connect FLDATA I/O FL driver communication data input/output FLCLK FL driver communication clock input Not connect FLCS FL driver communication chip select input Not connect VDD(B5V) OSC2...

  • Page 27: An22000A (Ic601) : Rf & Servo Amplifier

    VS-DT7R 4.10 AN22000A (IC601) : RF & Servo amplifier 4.10.2 Block diagram 4.10.1 Terminal layout 4.10.3 Pin function Pin No. Symbol Function APC Amp. Input terminal APC Amp.Output terminal Power supply terminal RF addition Amp.Reversing input terminal RF OUT RF addition Amp.Output terminal RF IN AGC input terminal C.AGC...

  • Page 28: La1838 (Ic1) : Fm Am If Amplifier & Detector, Fm Mpx Decoder

    VS-DT7R 4.11 LA1838 (IC1) : FM AM IF amplifier & Detector, FM MPX Decoder 4.11.1 Terminal layout 4.11.2 Pin function Pin No. Symbol Function FM IN This is an input terminal of FM IF signal. AM MIX O This is an out put terminal for AM mixer. FM IF Bypass of FM IF AM IF...

  • Page 29: La6575H (Ic801) : Focus & Spindle & Feed & Tracking Btl Driver

    VS-DT7R 4.12 LA6575H (IC801) : Focus & Spindle & Feed & Tracking BTL driver 4.12.1 Terminal layout 4.12.2 Block diagram 4.12.3 Pin function Pin No. Symbol Function Pin No. Symbol Function VCC2 Power supply for CH3/CH4/CH5 VIN2 Not use VO5- Loading output (-) VIN2G Spindle drive input...

  • Page 30: Lc72136N (Ic2) : Pll Frequency Synthesizer

    VS-DT7R 4.14 LC72136N (IC2) : PLL frequency synthesizer 4.14.1 Terminal layout 4.14.2 Block diagram 4.14.3 Pin function Pin No. Symbol Function XOUT X'tal oscillator connect (75kHz) LOW:FM mode Chip enable, When data output/input for 4pin(input) and 6pin(output): H Input for receive the serial data from controller Sync signal input use Data output for Controller, Output port ST/MONO...

  • Page 31: Lc72723 (Ic3) : Rds Decoder

    VS-DT7R 4.15 LC72723 (IC3) : RDS decoder 4.15.1 Terminal layout 4.15.2 Block diagram 4.15.3 4.15.4 Pin function Pin No. Symbol Function VREF Reference voltage output (Vdda/2) Base band (multiplex) signal input VDDA Analog system power supply (+5V) VSSA Analog system ground FLOUT Subcarrier output (filter output) Subcarrier input (comparator input)

  • Page 32: Njm4580D-D (Ic101) : Dual Operational Amplifier

    VS-DT7R 4.16 NJM4580D-D (IC101) : Dual operational amplifier 4.16.1 Terminal layout & Block diagram 4.17 RPM6938-SV4 (IC801, IC802, IC812) : Remote control receiver 4.17.1 Block diagram 4.18 LC75342M (IC501) : E. volume 4.18.2 Block diagram 4.18.1 Terminal layout 4.18.3 Pin function Pin No.

  • Page 33: Xc62Hr3502P (Ic291) : Regulator

    VS-DT7R 4.19 XC62HR3502P (IC291) : Regulator 4.19.2 Block diagram 4.19.1 Terminal layout 4.19.3 Pin function Pin No. Symbol Function Power supply input ON/OFF ON/OFF control (NC) Not use Vout Regulator output...
  • Page 34 < M E M O >...
  • Page 35 VS-DT7R VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 200207 (No.21119)

  • Page 36: Schematic Diagrams

    VS-DT7R SCHEMATIC DIAGRAMS COMPACT COMPONENET SYSTEM VS-DT7R CD-ROM No.SML200207 COMPACT COMPONENT SYSTEM STANDBY/ON PLAY MODE REPEAT FM MODE BASS TREBLE MD/AUX CANCEL TA/NEWS SEARCH SELECT /INFO DISPLAY FM/AM MODE DIMMER SLEEP AHB PRO DISPLAY CLOCK OPEN/ /TIMER CLOSE VOLUME SP-VSDT6 CA-VSDT7R SP-VSDT6 Area suffix...
  • Page 37 In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. (This regulation does not correspond to J and C version.)

  • Page 38: Block Diagram

    VS-DT7R Block diagram CD servo board Main board Switch board IC601 IC812 RF & Servo Front Pickup amplifier REMOCON IC811 DI811 Switch board Loading motor board driver display MICOM IC251 Unit MICOM IC701 LVA10324-A2 Loading System STANDBY LED motor control Sensor board KEY LED MICOM...
  • Page 39 VS-DT7R VS-DT7R Standard schematic diagrams CN111 System control section CN171 QGF1205C1-13 QGF1016C1-17 K7003 QQR1183-001Z C7201 0.01 C7210 Q7005 KRC102-X R7201 2.7K R7202 2.7K Q7006 KRA102S-X Q7008 DTA114TKA-X STBDIM -VPP Q7007 KRC102-X CN183 W8001 QGF1205C1-04 WJT0074-001A POUT KEY1 PSAVE KEY2 FANSW VOLCL VOLCE VOLDI...
  • Page 40 LF521 TUIR R1904 QQR0590-001 QQR0590-001 C5202 TUOR DTA123EKA-X Q1914 4.7/50 DTA123EKA-X Q1907 Q1302 Q1301 2SA1037AK/R/-X Q1904 D1901 D1902 HPMUTING R1931 2SC3576-JVC-T C5102 TUOL 2SA1037AK/R/-X D5SBA20-S1 D3SBA20-S1 4.7/50 Q1905 DTA144TKA-X R1914 C1903 C1904 C1905 C1906 Q1915 C1912 R5107 R5106 3.9K C5105...
  • Page 41 VS-DT7R VS-DT7R Tuner section QAU0160-001 0.0039 0.47/50 0.0022 0.047 22/50 1/50 0.047 470P 0.02 22/16 3.9K 10/25 0.001 10/16 10/16 1SS133-T2 100/16 1000P 1SS133-T2 0.018 0.018 3.3K QAX0420-001 LC72136N 1SS133-T2 LA1838 2SC1623/5-6/-X 2SC1623/5-6/-X 1SS133-T2 QNB0153-001 DTA114YKA-X QAX0458-001Z 5.6K DTA114YKA-X QQR0793-001 150P 150P 150P...
  • Page 42 VS-DT7R CD servo control section R601 220k TBAL R602 FBAL C604 0.022 CN671 C603 0.022 C607 C601 C602 SQCK R257 /SW3 GCTL KCMND /SW2 R259 MSTAT KCLK R263 IC251 R251 MCLK R262 R252 MDATA UPD780024AGKB62 R253 R254 /DMUTE STAT /RESET C633 QGF1036F1-15 CN001...
  • Page 43 VS-DT7R VS-DT7R FL control section DI811 QLF0100-001 C805 0.01/50 C810 C803 C808 C811 C804 100P/50 4.7/50 0.01/50 100P/50 4.7/50 C802 C801 CN811 0.01 100/6.3 QGF1016F2-17W C814 100P/50 C813 100P/50 X811 R893 NAX0248-001X FLDATA R892 FLCLK R891 FLCS Q821 IC811 DTC114TKA-X C812 0.01/50 MN101CP35DKB...

  • Page 44: Printed Circuit Boards

    VS-DT7R Printed circuit boards Main board (Speaker board) (LED board) C5504 CN103 R5502 LF311 LF321 CN101 CN102 D5504 LF551 C3602 D5503 IC802 D5501 C3601 S3601 C3105 J5503 J3601 C3205 C8011 J3001 J5301 J5303 J5302 C5304 J1901 CN802 C5309 (Tuner board) C5211 Q5302 K5304...
  • Page 45 VS-DT7R VS-DT7R Front board CD servo board Switch board Forward side Reverse side Forward side (Switch board) -VPP D.GND SW5V K656 R656 R677 S101 R655 R864 SW10V R619 K657 R657 R862 C616 K658 R658 US5V R861 C615 R101 STBLED5V R863 LGND R863 LGND...
  • Page 46 < M E M O >...
  • Page 47 VS-DT7R VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 200207 (No.21119SCH)

  • Page 48: Parts List

    VS-DT7R PARTS LIST [ VS-DT7R ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix E ----------- Continental Europe EN ------------ Northern Europe - Contents - 3- 3 Exploded view of general assembly and parts list (Block No.M1) 3- 5 CD mechanism assembly and parts list (Block No.MB) 3- 8...
  • Page 49 VS-DT7R < M E M O >...
  • Page 50 VS-DT7R Exploded view of general assembly and parts list Block No. Power amplifier board Main board Tuner board 69 72 Switch board Speaker board 16.10 16.20 Open/Close board FL board...
  • Page 51 VS-DT7R VS-DT7R Parts list (General assembly) Parts list (General assembly) Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area GV10091-003A MOVING BASE 1 PS/PAINT GV40333-001A SPACER GV40269-001A ROLLER 4 POM GV40330-001A...
  • Page 52 VS-DT7R CD mechanism assembly and parts list Block No. FMU-F1-1M Grease = JVG-31N = JC-803B = JVS-1003 Back side CD switch A=0.6 0.2mm board SLIT WASHER 131.3 0.1mm Gap 'A' Gap 'A' 13.3 0.1mm 0 0.1mm 6.7 0.1mm Tra-mecha CD servo board board...
  • Page 53 VS-DT7R Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area LV10647-005A LOADING BASE LV33481-004A KICK LEVER UNIT LV42819-002A COMP.SPRING LV21204-003A SLIDE CAM LV42977-001A CAM SPRING LV33336-001A UD GEAR WJM0294-002A E-SI C WIRE C-F QJJ024-041504 SIN CR C-C WIRE LV41741-002A SPECIAL SCREW...
  • Page 54 VS-DT7R Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area LV42965-001A ROD SPRING QUQ210-0705DF FFC WIRE CD PWB BKT LV33345-001A QYSBSF2006Z SCREW 4 FOR PWB/BKT QYSBSF2006Z SCREW 2 FOR PWB LV10650-003A T.CHASSIS LV33349-002A MIDDLE GEAR LV33350-001A RACK PINION LV33352-001A...
  • Page 55 VS-DT7R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area NCB31CK-223X C CAPACITOR CN 1 QGF1205C1-13 CONNECTOR NCB31CK-103X C CAPACITOR CN101 QGA2501C1-04 4P CONNECTOR FROM SPK.JACK QEKC1CM-106Z E CAPACITOR 10MF 20% 16V CN102...
  • Page 56 VS-DT7R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C1915 QTE1E06-476Z E CAPACITOR C5204 QTE1C28-106Z E CAPACITOR C1916 NCS31HJ-221X C CAPACITOR C5205 QEKC1CM-106Z E CAPACITOR 10MF 20% 16V C1917 NCB31HK-103X C CAPACITOR...
  • Page 57 2SA1037AK/R/-X TRANSISTOR SW10 IC102 BA15218F-XE Q1905 DTA144TKA-X TRANSISTOR SW10 IC108 LB1641 M.DRIVE Q1906 DTC144TKA-X TRANSISTOR SW10 IC191 UPC78L05J-T US5V Q1907 2SC3576-JVC-T TRANSISTOR R.FIL IC301 LA4905 Q1908 KTB772/Y/ TRANSISTOR IC501 LC75342M-X Q1909 2SC2412K/R/-X TRANSISTOR IC701 MN101C30AKJ2 IC(MASK) Q1910 2SC2412K/R/-X TRANSISTOR IC702...
  • Page 58 VS-DT7R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area Q3807 KTC3203/OY/-T TRANSISTOR R 72 NRSA63J-102X MG RESISTOR Q3808 DTA114TKA-X DIGI TRANSISTOR R 73 NRSA63J-102X MG RESISTOR Q3809 DTC144EKA-X TRANSISTOR...
  • Page 59 VS-DT7R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R1909 QRE141J-102Y C RESISTOR 1.0K 5% 1/4W R3814 QRJ146J-2R2X UNF C RESISTOR 2.2 5% 1/4W R1910 NRSA63J-472X MG RESISTOR R3815 QRJ146J-100X...
  • Page 60 VS-DT7R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R7125 NRSA63J-222X MG RESISTOR X 70 QAX0263-001Z CRYSTAL R7126 NRSA63J-222X MG RESISTOR X7001 QAX0401-001 CRYSTAL R7127 NRSA63J-222X MG RESISTOR X7002 QAX0283-001Z...
  • Page 61 VS-DT7R Electrical parts list (Front board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 801 NEA70JM-107X E CAPACITOR R 873 NRSA63J-681X MG RESISTOR C 802 NCB31HK-103X C CAPACITOR R 874 NRSA63J-681X MG RESISTOR C 803...
  • Page 62 VS-DT7R Electrical parts list (CD servo board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 254 QERF1AM-476Z E CAPACITOR 47MF 20% 10V IC601 AN22000A-W RF AMP C 255 NCB31CK-104X C CAPACITOR IC651 MN662790RSC C 271...
  • Page 63 VS-DT7R Electrical parts list (CD servo board) Block No. 03 Item Parts number Parts name Remarks Area R 669 NRSA63J-562X MG RESISTOR R 671 NRSA63J-684X MG RESISTOR R 675 NRSA63J-100X MG RESISTOR R 681 NRSA63J-0R0X MG RESISTOR R 682 NRSA63J-102X MG RESISTOR R 683 NRSA63J-105X...
  • Page 64 VS-DT7R < M E M O > 3-17...

  • Page 65: Packing Materials And Accessories Parts List

    VS-DT7R Packing materials and accessories parts list Block No. Block No. A5~A9 A12, A15 A1~A4 3-18...
  • Page 66 4 S.LENS+S.BASE FOOT 4 S.BASE(FOOT) A 15 GV40270-001A A 16 QYSBST3010Z T.SCREW 1 BRAZIER HEAD S- A 17 VSDT6R-SPBOX SPK.WITH BOX A 18 LV21233-001A SARAN BOARD JVC MARK A 19 LV41578-003A CAUTION SHEET 1 DISC FOOL PROOF A 20 GV40351-001A 3-19...

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