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JVC KD-S283 Service Manual
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JVC KD-S283 Service Manual

JVC KD-S283 Service Manual

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SERVICE MANUAL
9
2003
49871
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
CD RECEIVER
KD-S283

TABLE OF CONTENTS

Area suffix
UF ---------------------- China
COMPACT
DIGITAL AUDIO
No.49871
2003/10

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Summary of Contents for JVC KD-S283

  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER 49871 2003 KD-S283 Area suffix UF ---------------------- China COMPACT DIGITAL AUDIO TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION AUDIO AMPLIFIERSECTION Maximum Power Front 45W per channel Output Rear 45W per channel 17W per channel into 4 Ω , 40 Hz to 20000 Hz at no more than 0.8% Continuous Power Front Output (RMS) total harmonic distortion. 17W per channel into 4 Ω , 40 Hz to 20000 Hz at no more than 0.8% Rear total harmonic distortion.

  • Page 3: Precaution

    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 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

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.49871)1-5...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the front panel assembly Front panel assembly (See Fig.1) (1) Press the release button and remove the front panel as- sembly. Release button Fig.1 3.1.2 Removing the bottom cover (See Figs.2) (1) Turn over the main body and release the two joints a, two Bottom cover joints b and joint c.
  • Page 7 3.1.4 Removing the heat sink (See Fig.4) • Prior to performing the following procedure, remove the front panel assembly as required. (1) Remove the two screws B and screw C on the left side of the main body. Heat sink Fig.4 3.1.5 Removing the rear bracket (See Fig.5)
  • Page 8 3.1.7 Removing the CD mechanism assembly (See Fig.7) • Prior to performing the following procedure, remove the front panel assembly, bottom cover, front chassis assembly, heat sink, rear bracket and main board. (1) Remove the three screws H attaching the CD mechanism assembly to the top chassis.
  • Page 9 CD Mechanism Assembly 3.2.1 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. Top cover Joints a Fig.1...
  • Page 10 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. (2) Solder the short-circuit point on the connector board.
  • Page 11 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. DET switch Connector board Pickup Fig.6 Tab c DET switch DET switch wire Tab c...
  • Page 12 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 13 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 14 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 assembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 15 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 16 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 17 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. to release from the link plate (joint t) and turn in the direction of the arrow to release the joint u.
  • Page 18 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 19 3.2.13 Removing the select arm R / link plate Link plate Joint r Joint c' (See Figs.27 and 28) Select arm R Joint b' • Prior to performing the following procedure, remove the top plate assembly. (1) Bring up the select arm R to release from the link plate (joint a') and turn as shown in the figure to release the two Joint b' joints b' and joint c'.
  • Page 20 3.2.15 Removing the loading roller assembly Loading roller assembly (See Figs.31 to 33) • Prior to performing the following procedure, remove the Roller guide 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 21 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. The loading gear 6 and 7 come off the loading gear brack- (2) Pull out the loading gear 5.
  • Page 22 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 23 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 24: 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 25: Troubleshooting

    SECTION 5 TROUBLESHOOTING Feed section Is the voltage output at Is the wiring for IC541 Is 8V present at IC541 Check CD 9V. IC541 pin "4" is 5V or 0V? "1" to "14" correct? pin "6"? Check the vicinity of IC561.
  • Page 26 Signal processing section No sound from either Compare the L-ch and R-ch Is the sound output from channel. to locate the defective point. both channels (L, R)? Check the vicinity of the Normal Is 9V present at IC901 pin IC321 audio power supply. "10"? Is the audio signal (including sampling output...
  • Page 27 Maintenance of laser pickup 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 power cord from the ac outlet. 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 28 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49871) Printed in Japan...
  • Page 29 SCHEMATIC DIAGRAMS CD RECEIVER KD-S283 CD-ROM No.SML200310 Area suffix UF ---------------------- China COMPACT DIGITAL AUDIO Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5 to 6 No.49871SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/10...
  • Page 30 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 CJ701 TU701 CJ321 TU.LCH FM/AM LINE OUT TU.RCH TUNER Main board SW1,SW2,PSW FM/AM FM.OSC LM,MSW TRV,TVD, SPINDLE+ IC321 IC301 ECM,ECS, SPINDLE- OUT LF POWER CD.SENSE E.VOL POSITION SET KICK,TRD,FOD IC561 FEED+ IC541 OUT RF S.METER /CD.RESET SWITCH FEED- SERVO OUT LR SD/ST...
  • Page 32 Standard schematic diagrams Main amplifier section TU701 QAU0281-001 CJ701 QNB0100-002 Q861 L701 4.7u UN2111-X MUTE R201 R703 R101 R701 R333 R334 CJ321 D332 QNN0519-001 R336 2.2k Q332 2SD1781K/QR/-X Q791 MA111-X 2SB1197K/QR/-X R735 R702 R704 D333 R436 2.2k Q432 1.5k R791 2SD1781K/QR/-X Q792 MA111-X...
  • Page 33 CD servo control section D551 1A3G-T1 C552 C551 0.01 220/10 C543 0.033 R596 8.2k C541 IC561 22/16 MN6627482WA Q541 2SA1706/ST/-T C540 CD8V CD.RESET STATUS KICK IC541 SUBQ C570 SQCK LA6589H-X 0.022 TLOCK FLOCK C574 CD.SENSE FBAL TBAL 0.01 MDATA R550 MCLK C573 BLKCK...
  • Page 34 LCD & Key control section IC602 RPM6938-SV4 C611 0.012 C612 R662 4.7/6.3 D644 MA8062/M/-X CJ601 VMC0355-001 R661 LCD1 ILL-10V QLD0255-001 REMOCON LCD.SCK LCD.SO IC601 LCD.CE PT6523LQ KEY0 KEY1 KEY2 R605 R604 R603 R602 R601 KEY0 1.2k COM1 R651 COM2 2.2k COM3 S606 S605...
  • Page 35 Printed circuit boards Main board Reverse side D904 R862 C915 C901 R861 L901 R911 D869 IC901 D867 D861 C996 R904 C902 Q332 C862 D901 C910 C905 R903 R336 R902 C331 C906 D903 C303 B898 D332 C909 C302 R909 CJ701 C335 B354 R908 C304...
  • Page 36 Front board Forward side D620 S619 D615 R616 R611 S604 D603 R610 D601 R617 S620 S603 R604 D616 D604 R638 R602 D731 R639 R615 R601 R614 S602 S607 R606 S605 D732 R637 S617 R636 D602 D605 LCD1 S618 R605 D607 D608 D609 D613...
  • Page 37 < M E M O >...
  • Page 38 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.49871SCH)
  • Page 39 PARTS LIST [ KD-S283 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix UF ----------------------------China - 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 Exploded view of general assmbly and parts list...
  • Page 41 General assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GE10043-310A TOP CHASSIS GE40135-201A EARTH PLATE GE30938-203A SIDE PANEL GE30393-202A BOTTOM COVER FSMA3004-303 INSULATOR QYSDST2604Z SCREW 2.6mm x 4mm(x3) FSKZ4005-001 SCREW (x2) QYSDST2604Z SCREW 2.6mm x 4mm(x3) QYSDST2606Z SCREW 2.6mm x 6mm(x2)
  • Page 42 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1011 GP-501MK CFD-005Z GP-501A...
  • Page 43 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 303205301T CLAMPER ASS'Y 303205302T SPINDLE MOTOR A 30320502T CLAMPER ARM 30320503T...
  • Page 44 Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1][0][0] C310 NCB31HK-103X C CAPACITOR 0.01uF 50V K  Symbol No. Part No. Part Name Description Local C311 QEKJ1AM-107Z E CAPACITOR 100uF 10V M C312 QEKJ1CM-476Z E CAPACITOR...
  • Page 45  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C573 QERF1AM-227Z E CAPACITOR 220uF 10V M R407 NRSA63J-273X MG RESISTOR 27kΩ 1/16W J C574 NCB31EK-103X C CAPACITOR 0.01uF 25V K R408 NRSA63J-273X MG RESISTOR 27kΩ...
  • Page 46  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R805 NRS181J-332X MG RESISTOR 3.3kΩ 1/8W J D608 SML-310VT/JK/-X R807 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J D609 SML-310VT/JK/-X R808 NRS181J-102X MG RESISTOR 1kΩ...
  • Page 47  Symbol No. Part No. Part Name Description Local S612 NSW0066-001X TACT SW S613 NSW0066-001X TACT SW S614 NSW0066-001X TACT SW S615 NSW0066-001X TACT SW S616 NSW0066-001X TACT SW S617 NSW0066-001X TACT SW S618 NSW0066-001X TACT SW S619 NSW0066-001X TACT SW S620 NSW0066-001X TACT SW...
  • Page 48 Packing materials and accessories parts list Block No. A1,A2,A3,A4 KIT : A5,A6,A7 A8,A9 3-10...
  • Page 49 Packing and accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GET0167-001A INST BOOK CHI(PEKIN) GET0167-002A INSTALL MANUAL BT-59019-1 WARRANTY CARD BT-59012-1C SVC CTR LIST VKZ4027-202 PLUG NUT VKH4871-001SS MOUNT BOLT VKZ4328-001 LOCK NUT WNS5000Z WASHER GE40130-202A HOOK (x2)