JVC KD-S284 Service Manual
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JVC KD-S284 Service Manual

JVC KD-S284 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
9
2003
49872
TE
L 13942296513
DIGITAL AUDIO
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
www
.
CD RECEIVER
KD-S284
COMPACT

TABLE OF CONTENTS

x
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
http://www.xiaoyu163.com
2 9
8
Q Q
3
6 7
1 3
1 5
UF ------------- China
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
Area Suffix
m
No.49872
9 9
9 9
2003/9

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  • Page 1: Table Of Contents

    3 7 63 1515 0 SERVICE MANUAL CD RECEIVER 49872 2003 KD-S284 L 13942296513 Area Suffix COMPACT UF ------------- China DIGITAL AUDIO TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 http://www.xiaoyu163.com 3 7 63 1515 0 SPECIFICATION AUDIO AMPLIFIER Maximum Power Front 45W per channel SECTION Output Rear 45W per channel 17W per channel into 4 Ω , 40 Hz to 20000 Hz at Continuous Power Front Output (RMS) no more than 0.8% total harmonic distortion. 17W per channel into 4 Ω...

  • 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.49872)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 (See Fig.1) (1) Press the detach button and remove the front panel as- sembly. Front panel assembly Detach button Fig.1 3.1.2 Removing the bottom cover (See Fig.2) (1) From the bottom side of the main body, release the two joints a, two joints b and joint c.
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 3.1.4 Removing the heat sink (See Fig.5) • Prior to performing the following procedure, remove the front panel assembly as required. (1) From the left side of the main body, remove the two screws C and screw D attaching the heat sink.

  • Page 8: No.49872)1

    http://www.xiaoyu163.com 3 7 63 1515 0 3.1.7 Removing the CD mechanism assembly (See Fig.8) • 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 J attaching the CD mechanism assembly to the top chassis.
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 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.

  • Page 10: No.49872)1

    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 11 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. DET switch Connector board Pickup...
  • Page 12 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 13: Http://Www.xiaoyu163.Com

    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 14: No.49872)1

    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 assembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 15 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 16 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 17 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 18 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 19 http://www.xiaoyu163.com 3 7 63 1515 0 3.2.13 Removing the select arm R / link plate Joint c' Link plate Joint r (See Figs.27 and 28) Joint b' Select arm R • Prior to performing the following procedure, remove the top plate assembly.
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 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 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 22 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 23 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 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: Trouble Shooting

    http://www.xiaoyu163.com 3 7 63 1515 0 SECTION 5 TROUBLE SHOOTING Feed section Is the voltage output at Is the wiring for IC521 Is 5V present at IC561 Check CD 8V. IC521 pin 40 5v or 0V pin 40 correct? pin 20? Check the vicinity of IC521.
  • Page 26 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 27 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 (No.49872)1-27 http://www.xiaoyu163.com...
  • Page 28 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.49872) Printed in Japan http://www.xiaoyu163.com...

  • Page 29: Schematic Diagrams

    3 7 63 1515 0 SCHEMATIC DIAGRAMS CD RECEIVER KD-S284 CD-ROM No.SML200309 Area suffix UF ---------------------- China L 13942296513 COMPACT DIGITAL AUDIO Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5 to 7 u163 No.49872SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.

  • Page 30: Precaution 2

    KD-S284 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 KD-S284 3 7 6 3 1 5 1 5 0 Block diagram J931 L-CH FM/AM LINE OUT Front L R-CH TUNER Front R SW1,SW2,PSW Rear L Rear R FM/AM FMEO LM,MSW AMEO FMOSC DMO,FMO IC351 SPINDLE+ IC301 CDON TRO,FOO...
  • Page 32 KD-S284 KD-S284 Standard schematic diagrams 3 7 6 3 1 5 1 5 0 Main amplifier section IC351 LA4743K QAU0281-001 C351 R351 0.33 4.7u R352 R201 1.2K C203 1/50 C352 0.33 R101 1.2K C103 1/50 0.1/50 R302 C346 2.2/50 0.22/50...
  • Page 33 KD-S284 3 7 6 3 1 5 1 5 0 CD servo control section R564 R562 FEED- 8.2K FEED+ R592 R595 FEED- FEED- R563 4.7K R594 R591 C592 C593 CD.L R593 C561 120p FEED+ FEED+ 4.7/25 R566 47/6.3 8.2K...
  • Page 34 KD-S284 KD-S284 3 7 6 3 1 5 1 5 0 LCD & Key control section EN601 IC602 QSW0793-001 RPM6938-SV4 R661 C681 0.022 CN601 R662 NNZ0087-001 ACC5V LCD1 ENC1 ENC2 QLD0254-001 LCDCE LCDDA LCDCL 1 3 9 4 2 2 9 6 5 1 3...
  • Page 35 KD-S284 3 7 63 1515 0 Printed circuit boards Main board Forward side C964 IC961 J931 C960 C970 L961 R965 B961 C994 J771 C401 CN901 D963 D994 C914 C963 D962 B354 B962 D960 Q964 R473 C961 R474 R373 C962...
  • Page 36 KD-S284 3 7 63 1515 0 Main board Reverse side CN901 C964 J771 R914 IC961 C972 C371 C914 C772 C962 D960 C372 R476 B355 B351 B354 R961 C961 R472 C963 C401 C301 C356 C966 J931 C365 C968 C965 Q977...
  • Page 37 KD-S284 3 7 63 1515 0 Front board Forward side D625 D619 D622 S613 IC602 S617 S603 EN601 D620 R615 D607 D606 D623 S605 R605 S607 R604 R603 D621 R601 R606 R602 R649 R607 S602 S616 S614 D613 LCD1...

  • Page 38: Ao Y U163

    http://www.xiaoyu163.com 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.49872SCH) http://www.xiaoyu163.com...

  • Page 39: Parts List

    3 7 63 1515 0 PARTS LIST [ KD-S284 ] * 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 FSMA3005-001 INSULATOR QYSDST2604Z SCREW 2.6mm x 4mm(x3) FSKZ4005-001 SCREW (x2) QYSDST2604Z...
  • Page 42 http://www.xiaoyu163.com 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 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 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASS'Y 303205302T SPINDLE MOTOR A...
  • 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] NCB31HK-103X C CAPACITOR 0.01uF 50V K  Symbol No. Part No. Part Name Description Local QEKJ1CM-106Z E CAPACITOR 10uF 16V M QEKJ1CM-226Z E CAPACITOR...
  • 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 C531 NCB31EK-473X C CAPACITOR 0.047uF 25V K C975 NCB31EK-103X C CAPACITOR 0.01uF 25V K C533 NCS31HJ-471X C CAPACITOR 470pF 50V J C976...
  • 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 R514 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J R735 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R515 NRSA63J-101X MG RESISTOR 100Ω...
  • 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 D603 SML-310VT/JK/-X R681 NRSA63J-101X MG RESISTOR 100Ω 1/16W J D604 SML-310VT/JK/-X D605 SML-310VT/JK/-X CN601 NNZ0087-001 CAR CONNECTOR D606 SML-310VT/JK/-X EN601...
  • Page 48 http://www.xiaoyu163.com 3 7 63 1515 0 Packing materials and accessories parts list Block No. A1 A2 L 13942296513 KIT : A3 A4 A5 A6 A7 u163 3-10 http://www.xiaoyu163.com...
  • Page 49 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 GET0176-001A INST BOOK CHI(PEKIN) GET0176-002A INST BOOK CHI(PEKIN) VKZ4027-202 PLUG NUT VKH4871-001SS MOUNT BOLT VKZ4328-001 LOCK NUT WNS5000Z WASHER GE40130-001A HOOK (x2)

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