JVC KD-S847 Service Manual
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JVC KD-S847 Service Manual

JVC KD-S847 Service Manual

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QQ
3 7 63 1515 0
SERVICE MANUAL
04
2003
49832
TE
L 13942296513
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
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CD RECEIVER
KD-S847

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COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
http://www.xiaoyu163.com
2 9
8
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3
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1 3
1 5
EE ------ Russian Federation
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2 8
Area Suffix
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2 9
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KD-S847
9 9
9 9
No.49832
2003/04

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  • Page 1: Table Of Contents

    KD-S847 3 7 63 1515 0 SERVICE MANUAL CD RECEIVER 49832 2003 KD-S847 Area Suffix L 13942296513 EE ------ Russian Federation TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .

  • Page 2: Important Safety Precautions

    KD-S847 3 7 63 1515 0 SECTION 1 Important Safety Precautions 1.1 Safety Precautions Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
  • Page 3 KD-S847 3 7 63 1515 0 1.2 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.

  • Page 4: Disassembly Method

    KD-S847 3 7 63 1515 0 SECTION 2 Disassembly method 2.1 Main body 2.1.1 Removing the front panel assembly (See Fig.1) Front panel assembly (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly in the direction of the arrow.

  • Page 5: See Figs.6 And

    KD-S847 3 7 63 1515 0 2.1.3 Removing the heat sink (See Fig.5) (1) Remove the two screws B and one screws C on the left side of the main body. Heat sink Fig.5 2.1.4 Removing the bottom cover (See Figs.6 and 7)

  • Page 6: Http://Www.xiaoyu163.Com

    KD-S847 3 7 63 1515 0 2.1.6 Removing the main board (See Fig.9) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, heat sink, bottom Main board assembly cover and rear bracket. (1) Remove the two screws G attaching the main board.
  • Page 7 KD-S847 3 7 63 1515 0 2.1.8 Removing the front board (See Figs.11 to 13) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws J on the back side of the front pan- el assembly.
  • Page 8 KD-S847 3 7 63 1515 0 2.2 CD Mechanism Assembly 2.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the two screws A on the both side of the body. (2) Lift the front side of the top cover and move the top cover backward to release the two joints a.
  • Page 9 KD-S847 3 7 63 1515 0 2.2.2 Removing the connector board Wires (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of this in- struction may cause damage of the pickup.
  • Page 10 KD-S847 3 7 63 1515 0 2.2.3 Removing the DET switch (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Unsolder the DET switch wire if necessary.
  • Page 11 KD-S847 3 7 63 1515 0 2.2.4 Removing the chassis unit (See Figs.8 and 9) • Prior to performing the following procedure, remove the top Chassis unit cover and connector board. Suspension spring (L) Suspension spring (R) (1) Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame.
  • Page 12 KD-S847 3 7 63 1515 0 2.2.5 Removing the clamper assembly (See Figs.10 and 11) • Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. Clamper arm spring (2) Move the clamper assembly in the direction of the arrow to release the two joints d.
  • Page 13 KD-S847 3 7 63 1515 0 2.2.6 Removing the loading / feed motor assembly (See Figs.12 and 13) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw C and move the loading / feed motor assembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 14 KD-S847 3 7 63 1515 0 2.2.7 Removing the pickup unit Pickup unit (See Figs.14 to 18) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw D and pull out the pu. shaft holder from Part e the pu.
  • Page 15 KD-S847 3 7 63 1515 0 2.2.9 Removing the trigger arm Joint k (See Figs.19 and 20) • Prior to performing the following procedure, remove the top cover, connector board and clamper unit. (1) Turn the trigger arm in the direction of the arrow to release Trigger arm the joint k and pull out upward.
  • Page 16 KD-S847 3 7 63 1515 0 2.2.11 Removing the mode sw. / select lock arm Link plate Joint t (See Figs.22 and 23) Mode sw. • Prior to performing the following procedure, remove the top plate assembly. Select lock arm (1) Bring up the mode sw.
  • Page 17 KD-S847 3 7 63 1515 0 2.2.12 Reassembling the mode sw. / select lock arm Select lock arm spring (See Figs.24 to 26) Hook w REFERENCE: Reverse the above removing procedure. Joint v (1) Reattach the select lock arm spring to the top plate and set...
  • Page 18 KD-S847 3 7 63 1515 0 2.2.13 Removing the select arm R / link plate Joint c' Link plate Joint r (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly.
  • Page 19 KD-S847 3 7 63 1515 0 2.2.15 Removing the loading roller assembly Loading roller assembly (See Figs.31 to 33) • Prior to performing the following procedure, remove the Roller guide spring clamper assembly and top plate assembly. (1) Push inward the loading roller assembly on the gear side and detach it upward from the slot of the joint g' of the lock arm rivet assembly.
  • Page 20 KD-S847 3 7 63 1515 0 2.2.16 Removing the loading gear 5, 6 and 7 Loading gear bracket (See Figs.35 and 36) • Prior to performing the following procedure, remove the top Loading gear 6 cover, chassis unit, pickup unit and top plate assembly.

  • Page 21: Pull Out The Loading Gear

    KD-S847 3 7 63 1515 0 2.2.17 Removing the gears Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate rivet assembly cover, chassis unit, top plate assembly and pickup unit.

  • Page 22: Http://Www.xiaoyu163.Com

    KD-S847 3 7 63 1515 0 2.2.18 Removing the turn table / spindle motor Turn table (See Figs.41 and 42) • Prior to performing the following procedure, remove the top cover, connector board, chassis unit and clamper assembly. (1) Remove the two screws L attaching the spindle motor as- sembly through the slot of the turn table on top of the body.

  • Page 23: Adjustment

    FM1/FM2 87.5 MHz to 108.0 MHz 6. Digital tester 65.0 MHz to 74.0 MHz 7. Tracking offset meter AM (MW) 522 kHz to 1620 kHz 8. Test Disc JVC :CTS-1000 (LW) 144 kHz to 279 kHz 9. Extension cable for check EXTSH002-22P 1 Dummy load Exclusive dummy load should be used for AM,and FM.
  • Page 24 KD-S847 3 7 63 1515 0 3.2 Flow of functional operation unit TOC read Power ON Set Function CD When the laser diode correctly When the pickup correctly moves emits to the inner area of the disc Microprocessor $82 $81...
  • Page 25 KD-S847 3 7 63 1515 0 3.2.1 Feed section Is the voltage output at Is the wiring for IC501 Is 3.3V present at IC501 IC541 pin "40" 5V or 0V? pin 27? pin "20"? Check CD 8V Check the vicinity of and 5V.
  • Page 26 KD-S847 3 7 63 1515 0 3.3 Maintenance of laser pickup 3.4 Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn off the power switch and,disconnect the with a alcohol soaked cotton swab.

  • Page 27: Description Of Major Ics

    KD-S847 3 7 63 1515 0 SECTION 4 Description of major ICs 4.1 AK4381VT-X (IC481) : D/A converter • Pin layout MCLK DZFL BICK DZFR SDTI LRCK AOUTL+ AOUTL- CCLK AOUTR+ CDTI AOUTR- • Block diagram MCLK De-emphasis Clock...
  • Page 28 KD-S847 3 7 63 1515 0 4.2 AN80T07 (IC901) : Regulator • Block diagram MODE1 *ASO, Peak Current Protection. *Thermal Protection (Except VDD, Comp output). Outputs Reference Voltage Drive Drive Drive Drive MODE2 SW5V BATT.DET COMP AUDIO 5.7V 8.0V 9.0V...
  • Page 29 KD-S847 3 7 63 1515 0 4.3 IC-PST600M/G/-W (IC702) : System reset • Block diagram Vout 4.4 RPM6938-SV4 (IC602) : Remote control receiver • Block diagram Comp Detector conversion trimming circuit magnetic shield L 13942296513 u163 (No.49832)1-29 http://www.xiaoyu163.com...
  • Page 30 KD-S847 3 7 63 1515 0 4.5 LA47505 (IC301) : Power amp. • Block diagram Protective circuit Stand by Switch L 13942296513 Ripple Mute Filter circuit protective circuit Muting & On Time Control Circuit u163 1-30 (No.49832) http://www.xiaoyu163.com...
  • Page 31 KD-S847 3 7 63 1515 0 • Pin layout • Pin function Pin No. Symbol Function AC CONT1 Header of IC GND1 Power GND OUTFR- Outpur(-) for front Rch STBY Stand by input OUTFR+ Output (+) for front Rch...
  • Page 32 KD-S847 3 7 63 1515 0 4.6 LA6579H-X (IC501) : 4-Channel bridge driver • Pin layout & Block diagram VIN1-A VIN1 VIN1_SW [H]: OP-AMP_A [L]: OP-AMP_B VIN1+A VIN1-B VCCP1 VIN1+B Signal system S-GND power supply VIN1-SW All outputs ON/OFF...
  • Page 33 KD-S847 3 7 63 1515 0 • Pin function Pin No. Symbol Function VIN1-A CH1 input AMP_inverted input VIN1+A CH1 input AMP_non-inverted input VCCP1 CH1 and CH2 power stage power supply VO1+ Output pin(+)for channel 1 VO1- CH1 output pin (-) for channel 1...
  • Page 34 KD-S847 3 7 63 1515 0 4.7 LC75823W (IC601) : LCD driver • Pin Layout 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 •...
  • Page 35 KD-S847 3 7 63 1515 0 4.8 M24C16-WMN6-X (IC771) : EPROM • Block diagram • Pin layout HV GENERATOR MEMORY EEPROM ARRAY CONTROL CONTROL (8x 256 x8) XDEC LOGIC LOGIC PAGE LATCHES YDEC SENSE AMP F/W CNTROL • Pin function Pin No.
  • Page 36 KD-S847 3 7 63 1515 0 4.10 NJU7241F25-X (IC461) : Regulator • Pin layout GND 1 5 STB VIN 2 VOUT 3 4 NC • Block diagram Short protect VIN 2 3 VOUT STB 5 Vref GND 1 1 GND 4.11 NJU7241F33-X (IC471) : Voltage regulator...
  • Page 37 KD-S847 3 7 63 1515 0 4.12 TB2118F-X (IC31) : PLL • Pin Layout • Block diagram Constant power supply voltage Buff. ON/OFF AM CP. Phase OSC circuit Reference Counter Comparator switch FM VCO 4-bit Prescaler Swallow counter 12-bit...
  • Page 38 KD-S847 3 7 63 1515 0 4.13 TA2157FN-X (IC521) : RF amp • Pin layout • Block diagram PEAK 50 A BOTTOM PEAK L 13942296513 1.75k 240k 15pF x0.5 240k 15pF x0.5 180k 40pF RFGC (APC SW) (TE BAL)
  • Page 39 KD-S847 3 7 63 1515 0 • Pin function Pin No. Symbol Function 3.3V power supply pin Main-beam amp input pin Main-beam amp input pin Sub-beam amp input pin Sub-beam amp input pin Monitor photo diode amp input pin...
  • Page 40 KD-S847 3 7 63 1515 0 4.14 TC94A14FA (IC541) : DSP & DAC • Pin layout & Block daiagram Clock generator 1-bit Servo control Digital equalizer Address automatic circuit adjustment circuit Data CLV servo slicer 16 k Synchronous guarantee...
  • Page 41 KD-S847 3 7 63 1515 0 Pin No Symbol I/O Descroption TMAX O TMAX detection result output pin. TMAX Detection Result TMAX Output Longer than fixed period "PV " Within fixed period "HiZ" Shorter than fixed period "AV "...
  • Page 42 KD-S847 3 7 63 1515 0 4.15 TC94A20F-011 (IC401) : DAC/SRAM built in type D-ROM decoder+ MP3 decoder • Pin layout & Block diagram Switch L 13942296513 General Timing inputbport generator u163 1-42 (No.49832) http://www.xiaoyu163.com...
  • Page 43 KD-S847 3 7 63 1515 0 • Pin functions Pin No Symbol Functions /RESET Hard reset input H:normal L:reset MiMD Micon I/F mode select input /MiCS Micon I/F chip select input /MiLP Micon I/F latch palus input MiDio Micon I/F data input/output...
  • Page 44 KD-S847 3 7 63 1515 0 4.16 TEA6320T-X (IC161) : E.volume • Pin layout OUTRR OUTLR OUTRF OUTLF MUTE Vref CD-CH TAPE TUNER • Block diagram VOLUME 2 MUTE 0 to 55 dB FUNCTION BALANCE ZERO CROSS FENDER REAR...
  • Page 45 KD-S847 3 7 63 1515 0 • Pin functions Pin No. Symbol Functions Serial data input/output. Ground. OUTLR output left rear. OUTLF output left front. Treble control capacitor left channel or input from an external equalizer. Bass control capacitor left channel or output to an external equalizer.
  • Page 46 KD-S847 3 7 63 1515 0 4.17 UPD784215AGC205 (IC701) : CPU • Pin layout • Pin function Pin No. Symbol Function Not use CD mecha SW2 CD mecha position setting SW Loading motor control output MOTOR SEL Loading/feed motor selecting output Loading motor;...
  • Page 47 KD-S847 3 7 63 1515 0 Pin No. Symbol Function Chip select out CCLK Clock out CDTI Data out Power down control for DAC SD/ST Station detector or stereo indicator input ; H means a station is there. L means the pro- gram is stereo.
  • Page 48 KD-S847 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49832) Printed in Japan 200304WPC http://www.xiaoyu163.com...

  • Page 49: Schematic Diagrams

    KD-S847 3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-S847 CD-ROM No.SML200304 Area suffix EE ------ Russian Federation L 13942296513 Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5 to 7 u163 No.49832SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.

  • Page 50: Safety Precaution

    KD-S847 3 7 63 1515 0 Safety precaution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
  • Page 51 KD-S847 3 7 6 3 1 5 1 5 0 Block diagram OUTLF OUTRF TU.L FM/AM TU.R J321 TUNER LINE OUT SW1,SW2,PSW OUTLR AMVT OUTRR SEEK/STOP FMVT SD/ST FM/AM OSC LM0,LM1 MONO TRO,FOO IC301 SPINDLE+ BUS0,BUS1 IC161 DMO,FMO IC31...
  • Page 52 KD-S847 KD-S847 3 7 6 3 1 5 1 5 0 Standard schematic diagrams Main amplifier section RB160M-30-X R248 D243 R244 C243 R243 0.047 180k R245 C241 1/50 R247 R242 R241 IC301 C242 22/16 LA47505 Q241 QAU0293-001 2SD601A/R/-X LEVEL...
  • Page 53 KD-S847 3 7 6 3 1 5 1 5 0 CD servo control section R504 R502 8.2k R586 6.8K FEED- C589 FEED- R503 4.7k R581 R585 CD.R C582 47/10 8.2k R584 270p FEED+ 4.7/25 FEED+ R506 C501 C581 8.2k...
  • Page 54 KD-S847 KD-S847 3 7 6 3 1 5 1 5 0 LCD & Key control section JS690 QSW0793-001 IC602 RPM6938-SV4 R672 R673 0.015 0.015 C614 C613 LCD1 VMC0335-001 DETACH QLD0256-001 CJ601 ACC5V REMOCON ENC1 ENC2 R675 DIMMER LCDCL LCDDA...
  • Page 55 KD-S847 3 7 63 1515 0 Printed circuit boards Main board Forward side IC901 C904 J321 C851 Q341 C901 C914 C903 L901 C802 J801 CN901 D901 C318 C910 R331 R351 R341 D891 C905 C308 D892 C173 C163 C315 D851...
  • Page 56 KD-S847 3 7 63 1515 0 Main board Reverse side C916 C917 C901 C891 CN901 R971 R972 J321 D972 C911 L901 J801 C325 C324 D971 IC901 C852 D901 Q351 C971 C318 R902 Q331 C244 R784 C308 C319 Q784 R903...
  • Page 57 KD-S847 3 7 63 1515 0 Front board Forward side D622 D618 D619 S616 S613 S617 S601 JS690 LCD1 R601 D731 R646 R631 D609 S618 D610 R647 D732 R610 R608 S612 R602 S602 S610 R604 D605 D604 D603 D608...
  • Page 58 KD-S847 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49832SCH) 2003/04 http://www.xiaoyu163.com...

  • Page 59: Parts List

    KD-S847 3 7 63 1515 0 PARTS LIST [ KD-S847 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix EE --------- Russian Federation L 13942296513 - Contents - Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB)
  • Page 60 KD-S847 3 7 63 1515 0 Exploded view of general assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 61 KD-S847 3 7 63 1515 0 General assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local ------------ CD MECHA GE10043-210A TOP CHASSIS GE40135-001A EARTH PLATE GE30938-003A HEAT SINK GE30393-002A BOTTOM COVER FSMA3004-203 INSULATOR QYSDST2604Z SCREW 2.6mm x 4mm(x3)
  • Page 62 KD-S847 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1011 GP-501MK CFD-005Z GP-501A L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 63: Loading Gear

    KD-S847 3 7 63 1515 0 CD mechanism Block No. [M][B][M][M]  Symbol No. Part No. Part Name Description Local 30320101T FRAME 30320102T TOP COVER 30320115T DANPER F 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A...

  • Page 64: Electrical Parts List

    KD-S847 3 7 63 1515 0 Electrical parts list Main board Block No. [0][1][0][0]  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local D971 RB160M-30-X SB DIODE D972 RB160M-30-X SB DIODE...
  • Page 65 KD-S847 3 7 63 1515 0  Symbol No. Part No.  Symbol No. Part No. Part Name Description Local Part Name Description Local C314 NCS31HJ-391X C CAPACITOR 390pF 50V J C553 NCB31EK-473X C CAPACITOR 0.047uF 25V K C315...
  • Page 66 KD-S847 3 7 63 1515 0  Symbol No. Part No.  Symbol No. Part No. Part Name Description Local Part Name Description Local C968 NCS31HJ-101X C CAPACITOR 100pF 50V J R453 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J C971...
  • Page 67 KD-S847 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local R704 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R705 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R708 NRSA63J-332X MG RESISTOR 3.3kΩ 1/16W J R710 NRSA63J-0R0X MG RESISTOR 0Ω...

  • Page 68: Front Board

    KD-S847 3 7 63 1515 0 Front board  Symbol No. Part No. Part Name Description Local Block No. [0][2][0][0] R658 NRSA63J-184X MG RESISTOR 180kΩ 1/16W J  Symbol No. Part No. Part Name Description Local R659 NRS181J-431X MG RESISTOR 430Ω...
  • Page 69 KD-S847 3 7 63 1515 0 <MEMO> L 13942296513 u163 No. 49832 3-11 http://www.xiaoyu163.com...
  • Page 70 KD-S847 3 7 63 1515 0 Packing materials and accessories parts list Block No. A2 A3 L 13942296513 KIT : A7 A8 A9 u163 3-12 http://www.xiaoyu163.com...
  • Page 71 KD-S847 3 7 63 1515 0 Packing and accessories Block No. [M][3][M][M]  Symbol No. Part No.A Part Name Description Local GET0137-001A INST BOOK ENG RUS GET0137-002A INSTALL MANUAL ENG RUS BT-54013-5 WARRANTY CARD VND3046-001 SERIAL TICKET LV40978-001A CAUTION SHEET...

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