JVC KD-SV203 Service Manual
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JVC KD-SV203 Service Manual

JVC KD-SV203 Service Manual

Vcd/cd receiver
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3 7 63 1515 0
SERVICE MANUAL
11
2003
49878
TE
L 13942296513
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
www
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http://www.xiaoyu163.com
VCD/CD RECEIVER
KD-SV203
UP
DOWN
VIDEO CD
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TABLE OF CONTENTS

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COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
http://www.xiaoyu163.com
2 9
8
Q Q
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6 7
1 3
1 5
co
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9 4
2 8
Area suffix
UF ---------------------- China
0 5
8
2 9
9 4
2 8
m
No.49878
9 9
9 9
2003/11

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  • Page 1: Table Of Contents

    3 7 63 1515 0 SERVICE MANUAL VCD/CD RECEIVER 49878 2003 KD-SV203 Area suffix UF ---------------------- China DOWN VIDEO CD L 13942296513 TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 http://www.xiaoyu163.com 3 7 63 1515 0 SPECIFICATION AUDIO AMPLIFIER SECTION Maximum Power Front 50 W per channel Output Rear 50 W per channel 19 W per channel into 4 Ω 40 Hz to 20 000 Hz at no more than 0.8% Continuous Power Front Output (RMS)

  • Page 3: Precaution

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 1 PRECAUTION 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. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
  • Page 4 http://www.xiaoyu163.com 3 7 63 1515 0 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. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.

  • Page 5: Specific Service Instructions

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. L 13942296513 u163 (No.49878)1-5 http://www.xiaoyu163.com...

  • Page 6: Disassembly

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the front panel assembly Front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Detach button Fig.1 3.1.2 Removing the bottom cover...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 3.1.4 Removing the side panel (See Fig.4) • Prior to performing the following procedure, remove the front panel assembly as required. (1) Remove the two screws B and two screws C attaching the side panel on the left side of the main body, and remove the side panel.
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 3.1.7 Removing the Sub board (See Fig. 7) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, side panel, bottom cover, rear bracket and main board. Joint f (1) Remove the five screws H attaching the Sub board.
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 3.1.9 Removing the front board (See Figs.9 to 11) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws K on the back side of the front panel assembly.
  • Page 10 http://www.xiaoyu163.com 3 7 63 1515 0 CD Mechanism section 3.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the four 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 11 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.2 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. (1) Remove the screw B fixing the connector board.
  • Page 12 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.3 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. switch Connector board Pickup...
  • Page 13 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.4 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 14 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.5 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 15 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.6 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 as- sembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 16 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.7 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 17 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.9 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 18 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.11 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 19 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.12 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 Joint v the shorter end of the select lock arm spring to the hook w on the top plate.
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13 Removing the select arm R / link plate Link plate Joint c' Joint r (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.15 Removing the loading roller assembly (See Figs.31 to 33) Loading roller assembly • Prior to performing the following procedure, remove the Roller guide clamper assembly and top plate assembly. spring (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 22 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.16 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. (1) Remove the screw K attaching the loading gear bracket.
  • Page 23 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.17 Removing the gears Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate cover, chassis unit, top plate assembly and pickup unit. rivet assembly • Pull out the loading gear 3. (See Fig.35.) (1) Pull out the feed gear.
  • Page 24 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.18 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 25: Adjustment

    Exclusive dummy load should be used for AM,and FM. For FM (7) Tracking offset meter dummy load,there is a loss of 6dB between SSG output and (8) Test Disc JVC :CTS-1000 antenna input.The loss of 6dB need not be considered since (9) Extension cable for check direct reading of figures are applied in this working standard.

  • Page 26: Troubleshooting

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 5 TROUBLESHOOTING Service mode Operation method (Note) Insert the test disc If "SUB 000" and "VCD 000" are indicated on the LCD, "TOC read" starts these operations are required. Press the [CD], [SEL] and [POWER] keys simultaneously for 2 seconds.
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 Maintenance of laser pickup Replacement of laser pickup (1) Cleaning the pick up lens Turn off the power switch and,disconnect the Before you replace the pick up, please try to clean the lens power cord from the ac outlet. with a alcohol soaked cotton swab.

  • Page 28: Ao Y U163

    http://www.xiaoyu163.com 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.49878) Printed in Japan http://www.xiaoyu163.com...
  • Page 29 3 7 63 1515 0 SCHEMATIC DIAGRAMS VCD/CD RECEIVER KD-SV203 CD-ROM No.SML200311 Area suffix UF ---------------------- China L 13942296513 FM/AM DOWN VIDEO CD ENTER PB C RETURN AUDIO Contents Block diagram Standard schematic diagrams Printed circuit boards 2-6 to 7 u163 No.49878SCH...

  • Page 30: Tel 13942296513

    http://www.xiaoyu163.com 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 31: Block Diagram

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Block diagram CJ341 A,B,E,F CJ701 PD,LD FRONT TU.LCH TU701 VREF IC601 IC104 CVOUT /VCDRST TU.RCH LINE OUT FM/AM RF AMP CDL+,CDL- TUNER PACK COMPANION CDR+,CDL- IC151 REAR TBAL,FBAL TBCK CHIP FOCUS+ CD LPF LINE OUT...

  • Page 32: Standard Schematic Diagrams

    http://www.xiaoyu163.com Standard schematic diagrams 3 7 6 3 1 5 1 5 0 Main amplifier section TU701 QAU0281-001 CJ701 QNB0100-002 Q861 L701 DTA114EKA-X MUTE R201 1.2k R703 R701 R101 1.2k R735 1.5k C731 R736 R733 R734 2.2/50 R343 R342 C732 0.001 R352 Q731...
  • Page 33 http://www.xiaoyu163.com Video CD / CD Servo control section 3 7 6 3 1 5 1 5 0 R601 220k TBAL FBAL R602 R603 C605 270p C604 R278 R277 0.022 R604 270k C603 0.022 R605 IC251 R608 C606 MN101C30ACK1 R641 C641 C609 0.082 R607...
  • Page 34 http://www.xiaoyu163.com Video CD control section 3 7 6 3 1 5 1 5 0 IC102 AT27C020-70JCU5 LA17 LA16 LA15 LA12 R119 L101 CVOUT R120 C111 C112 470p 470p R152 C107 C147 C115 C144 C131 C113 0.01 X101 C130 NAX0550-001X 100/16 L102 R121 C120...
  • Page 35 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 LCD & Key control section JS690 QSW0793-001 IC602 RPM6938-V4 R672 R673 0.015 0.015 C614 C613 CJ601 VMC0335-001 LCD1 DETACH ACC5V REMOCON ENC1 ENC2 LCD.SCK LCD.SO LCD.CE KEY0 KEY1 KEY2 R605 R604 R603 R601...

  • Page 36: Printed Circuit Boards 2-6 To

    http://www.xiaoyu163.com Printed circuit boards 3 7 6 3 1 5 1 5 0 Main board Forward side Reverse side R911 R903 C906 C915 CN901 CJ701 C901 CJ341 Q931 IC901 Q931 C908 IC901 C932 CJ341 C908 C931 C901 B120 C932 D905 L901 C916 C903...
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 VCD / CD mechanism board Forward side L 13942296513 Reverse side C681 C543 R617 R542 R613 R544 R611 R548 R547 R543 C623 C542 R550 R658 D659 C608 C544 IC601 R604 C641 C607 C632 R552 R554 C605 R553...
  • Page 38 http://www.xiaoyu163.com 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 Printed in Japan (No.49878SCH) http://www.xiaoyu163.com...
  • Page 39 3 7 63 1515 0 PARTS LIST [ KD-SV203 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix UF ---------------------------- China L 13942296513 - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 4 CD mechanism assembly and parts list (Block No.MB)
  • Page 40 http://www.xiaoyu163.com 3 7 63 1515 0 Exploded view of general assmbly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 41 http://www.xiaoyu163.com 3 7 63 1515 0 General assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GE10043-210A TOP CHASSIS GE40135-001A EARTH PLATE GE30938-003A SIDE PANEL GE30393-002A BOTTOM COVER FSMA3004-203 INSULATOR QYSDST2604Z SCREW 2.6mm x 4mm(x3) FSKZ4005-001 SCREW (x2) QYSDST2606Z...
  • Page 42 http://www.xiaoyu163.com 3 7 63 1515 0 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1013 GP-501MK CFD-005Z GP-501A L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 43 http://www.xiaoyu163.com 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 (x2) 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASSY 303205302T...
  • Page 44 http://www.xiaoyu163.com 3 7 63 1515 0 Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1][0][0] C244 QEKJ1HM-224Z E CAPACITOR 0.22uF 50V M  Symbol No. Part No. Part Name Description Local C301 QERF1HM-225Z E CAPACITOR 2.2uF 50V M...
  • Page 45 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C861 QEKJ0JM-227Z E CAPACITOR 220uF 6.3V M R791 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J C862 NCB31EK-823X C CAPACITOR 0.082uF 25V K R792...
  • Page 46 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local QZW0010-001 STYLE PIN R639 NRSA02J-391X MG RESISTOR 390Ω 1/10W J QZW0010-001 STYLE PIN R640 NRSA02J-681X MG RESISTOR 680Ω...
  • Page 47 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C104 NEA71CM-106X E CAPACITOR 10uF 16V M C641 NCB31EK-823X C CAPACITOR 0.082uF 25V K C105 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C642...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R264 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J X251 NAX0248-001X C OSCILLATOR R273 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J X651 NAX0375-001X CRYSTAL...
  • Page 49 http://www.xiaoyu163.com 3 7 63 1515 0 <MEMO> L 13942296513 u163 3-11 http://www.xiaoyu163.com...
  • Page 50 http://www.xiaoyu163.com 3 7 63 1515 0 Packing materials and accessories parts list Block No. A1,A2,A3 L 13942296513 KIT : A4,A5,A6 A7,A8,A9 u163 3-12 http://www.xiaoyu163.com...
  • Page 51 http://www.xiaoyu163.com 3 7 63 1515 0 Packing and accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local ------------ INST BOOK CHI(PEKIN) ------------ INSTALL MANUAL ------------ MP3 SHEET VKZ4027-202 PLUG NUT VKH4871-001SS MOUNT BOLT VKZ4328-001 LOCK NUT WNS5000Z WASHER GE40130-001A...

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