JVC KD-S73R Service Manual
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JVC KD-S73R Service Manual

JVC KD-S73R Service Manual

Cd receiver
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SERVICE MANUAL
3
2005
49780B
KD-S73R,KD-S71R
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
CD RECEIVER

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
Area suffix
E ------------- Southern Europe
EX ------------ Northern Europe
No.49780B
2005/3

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  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER 49780B 2005 KD-S73R,KD-S71R Area suffix E ------------- Southern Europe EX ------------ Northern Europe TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION AUDIO AMPLIFIER SECTION Maximum Power Output Front 45 W per channel Rear 45 W per channel 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more Continuous Power Output (RMS) Front than 0.8% total harmonic distortion. 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more Rear than 0.8% total harmonic distortion.

  • Page 3: Precaution

    SECTION 1 PRECAUTIONS 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 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. 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 DVD players.

  • Page 5: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS HOW TO IDENTIFY MODELS 2.1.1 NAME PLATE Discernment sign (as same as KD-S73R ) (No.49780B)1-5...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY 3.1 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 in the direction of the arrow. Detach button Fig.1 3.1.2 Removing the front chassis assembly...
  • Page 7 3.1.3 Removing the heat sink (See Fig.4) (1) Remove the two screws B and two screws C on the left side of the main body. Heat sink Fig.4 3.1.4 Removing the bottom cover (See Figs.5 and 6) • Prior to performing the following procedure, remove the front Joint c panel assembly, front chassis assembly and heat sink.
  • Page 8 3.1.6 Removing the main board Main board (See Fig.8) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, heat sink, bottom cover and rear bracket. (1) Remove the two screws G attaching the main board. (2) Disconnect the connector CN501 and remove the main board.
  • Page 9 3.1.8 Removing the front board (See Figs.10 to 12) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws J on the back side of the front panel assembly. (2) Release the eleven joints f. (3) Take out the front board.
  • Page 10 3.2 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 11 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 12 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 13 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 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 (2) Move the clamper assembly in the direction of the arrow to spring release the two joints d.
  • Page 15 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 16 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 the pu.
  • Page 17 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 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 19 3.2.12 Reassembling the mode sw. / select lock arm Select lock arm spring (See Figs.24 to 26) REFERENCE: Hook w 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 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 21 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 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 23 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 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

    SECTION 5 TROUBLESHOOTING Feed section Is the voltage output at Is the wiring for IC521 Is 5V present at IC581 Check CD 9V (90) ~ (100) correct? IC521 pin u 5V or 0V? pin 6? and 5V. Check the vicinity of IC521.
  • Page 27 Signal processing section Compare the L-ch and R-ch No sound from either 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 IC101 pin Q981 audio power supply. (8)? Is the audio signal Check IC521 and its...
  • Page 28 Maintenance of laser pickup 5.7 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 with a alcohol soaked cotton swab. from the ac outlet.
  • Page 29 16 PIN CORD DIAGRAM Black Green VI/BK Violet GY/BK Blue Gray WH/BK BL/WH White Yellow GN/BK Brown VI/BK GY/BK WH/BK GN/BK MEMORY MEMORY BACKUP DIRECT TO BATTERY +12Volt BL/WH REMOTE ACC + 12Volt GROUND Rear Right Auto Antenna Front Right Line Front Left...
  • Page 30 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49780B) Printed in Japan...
  • Page 31 SCHEMATIC DIAGRAMS CD RECEIVER KD-S73R,KD-S71R CD-ROM No.SML200503 Area suffix E ------------- Southern Europe EX ------------ Northern Europe Contents Block diagram (For E/EX version) Standard schematic diagrams (For E/EX version) Printed circuit boards (For E/EX version) Block diagram (For E2/EX2 version)

  • Page 32: Safety Precaution

    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 33: Block Diagram (For E/Ex Version)

    Block diagram (For E/EX version) Main amplifier / CD servo control section L-CH OUTRL R-CH OUTRR LINE OUT FM/AM TUNER MONO FMEO AMEO SK/STP SW1,SW2 SD/ST FEED+ AFCK,SM LOAD&FEED FEED- FM/AM MOTOR OSC,IFC OUTFL FL+,FL- SK/ST1 OUTFR FR+,FR- IC71 OUTRL RL+,RL- IC301 SPINDLE+...

  • Page 34: Standard Schematic Diagrams (For E/Ex Version)

    Standard schematic diagrams (For E/EX version) Main amplifier section J301 QNN0519-001 R342 R332 100( 1/10W) R322 R352 100( 1/10W) 100( 1/10W) 100( 1/10W) IC301 QAU0292-001 LA4743K QNB0100-002 220P 4.7u R163 C186 1/50 2.2k 1/50 R343 2SD601A/R/-X R353 R341 1/50 R323 R333 R162 2.2k...
  • Page 35 CD servo control section R563 4.7k 20k( 1/10W) R564 R566 R562 8.2k R592 R595 FEED- FEED- 8.2k( 1/10W) R565 R594 C592 R591 C593 CD.L C561 R593 47/6.3 120p FEED+ 4.7/25 FEED+ R567 Q561 6.8k 2SB1322/RS/-T C594 C584 R519 D561 SPINDLE- SPINDLE- 150( 1/10W) 1A3G-T1...
  • Page 36 LCD & Key control section IC602 RPM6938-SV4 C611 C612 0.012 4.7/6.3 UDZS5.1B-X CJ601 D644 VMC0335-001 R661 LCD1 QLD0210-002 ILL10V ACC5V REMOCON TO CN701 (SHEET 1) LCDCL LCDDA LCDCE IC601 LC75823W KEY0 KEY1 KEY2 R605 R604 R603 R602 R601 KEY0 2.7K 1.8K 1.2K D606...

  • Page 37: Printed Circuit Boards (For E/Ex Version)

    Printed circuit boards (For E/EX version) Main board Forward side Reverse side C903 R904 C903 R905 J301 C344 IC901 D903 Q341 Q321 C907 D902 C333 D901 D901 L901 J801 C310 C311 C308 C309 R903 R902 CP961 C905 C907 C905 R782 R901 R781 D782...

  • Page 38: Block Diagram (For E2/Ex2 Version)

    Block diagram (For E2/EX2 version) Main amplifier / CD servo control section L-CH OUTRL R-CH OUTRR LINE OUT FM/AM TUNER MONO FMEO AMEO SK/STP SW1,SW2 SD/ST FEED+ AFCK,SM LOAD&FEED FEED- FM/AM MOTOR OSC,IFC OUTFL FL+,FL- SK/ST1 OUTFR FR+,FR- IC71 OUTRL RL+,RL- IC301 SPINDLE+...

  • Page 39: Standard Schematic Diagrams (For E2/Ex2 Version)

    Standard schematic diagrams (For E2/EX2 version) Main amplifier section J301 QNN0519-001 R332 R342 100( 1/10W) R322 R352 100( 1/10W) 100( 1/10W) 100( 1/10W) IC301 QAU0222-001 LA4743K QNB0100-002 220P 4.7u R163 C186 1/50 2.2k R343 1/50 R353 1/50 2SD601A/R/-X R323 R333 R341 R162 2.2k...
  • Page 40 CD servo control section 4.7k R563 20k( 1/10W) R566 R564 R562 8.2k R592 R595 FEED- 8.2k( 1/10W) C592 FEED- R565 R594 C593 R591 CD.L R593 C561 47/6.3 120p FEED+ FEED+ 4.7/25 R567 Q561 2SB1322/RS/-T 6.8k C594 C584 R519 SPINDLE- 150( 1/10W) D561 SPINDLE- 1A3G-T1...
  • Page 41 LCD & Key control section IC602 RPM6938-SV4 C611 C612 0.012 4.7/6.3 UDZS5.1B-X CJ601 D644 VMC0335-001 R661 LCD1 QLD0210-002 ILL10V ACC5V REMOCON TO CN701 (SHEET 1) LCDCL LCDDA IC601 LCDCE PT6523LQ-L KEY0 KEY1 KEY2 R605 R604 R603 R602 R601 KEY0 2.7K 1.8K 1.2K D606...

  • Page 42: Printed Circuit Boards (For E2/Ex2 Version)

    Printed circuit boards (For E2/EX2 version) Main board Forward side Reverse side C903 R904 C903 IC901 J301 R905 J301 C344 IC901 Q341 D903 C907 Q321 C333 J801 D901 D902 D901 J801 L901 C310 C311 C308 C309 R903 R902 CP961 C905 C907 CP961 C905...
  • Page 43 < M E M O >...
  • Page 44 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49780BSCH)

  • Page 45: Parts List

    EX ------------ Northern Europe - Contents - Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB) Electrical parts list (Block No.01,02)(KD-S73R/S71R_E,EX) 3-11 Electrical parts list (Block No.03,04)(KD-S73R/S71R_E2,EX2) 3-16 Packing materials and accessories parts list (Block No.M3)
  • Page 46 Exploded view of general assembly and parts list...
  • Page 48 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 QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-001A SCREW (x2) QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) QYSDST2606ZA TAP SCREW...
  • Page 49 CD mechanism assembly and parts list Block No. Grease TN-2001-1011 TNG-87 GP-501MK CFD-005Z GP-305T The parts without symbol number are not service.
  • Page 50 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 51: Electrical Parts List

    Electrical parts list Main board (KD-S73R/S71R_E,EX) Symbol  Part No. Part Name Description Local Block No. [0][1] QEKJ1AM-227Z E CAPACITOR 220uF 10V M  Symbol Part No. Part Name Description Local QEKJ1HM-105Z E CAPACITOR 1uF 50V M NDC31HJ-221X C CAPACITOR...
  • Page 52 Symbol Symbol   Part No. Part Name Description Local Part No. Part Name Description Local C341 NCS31HJ-391X C CAPACITOR 390pF 50V J C709 QEKJ1AM-107Z E CAPACITOR 100uF 10V M C342 QFV61HJ-334Z MF CAPACITOR 0.33uF 50V J C710 NCB31EK-103X C CAPACITOR 0.01uF 25V K C351 NCS31HJ-391X...
  • Page 53 Symbol Symbol   Part No. Part Name Description Local Part No. Part Name Description Local R176 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R710 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R177 NRSA63J-273X MG RESISTOR 27kΩ 1/16W J R713 NRSA63J-103X MG RESISTOR 10kΩ...
  • Page 54 Switch board (KD-S73R/S71R_E,EX)  Symbol No. Part No. Part Name Description Local Block No. [0][2] S73R  Symbol No. ED,S7 Part No. Part Name Description Local D610 SML-310DT/KL/-X 3REX S71R IC601 LC75823W ED,S7 D611 LNJ308G81/1-3/X 1REX S71R ED,S7 D601 LNJ308G81/1-3/X...
  • Page 55  Symbol No. Main board (KD-S73R/S71R_E2,EX2) Part No. Part Name Description Local Block No. [0][3] R601 NRSA63J-821X MG RESISTOR 820Ω 1/16W J  Symbol No. R602 NRSA63J-821X MG RESISTOR 820Ω 1/16W J Part No. Part Name Description Local R603 NRSA63J-122X MG RESISTOR 1.2kΩ...
  • Page 56  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local QEKJ1HM-225Z E CAPACITOR 2.2uF 50V M C503 QEKJ0JM-107Z E CAPACITOR 100uF 6.3V M NCS31HJ-102X C CAPACITOR 1000pF 50V J C504 NCB31HK-103X C CAPACITOR 0.01uF 50V K NCB21EK-124X C CAPACITOR...
  • Page 57  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C782 QEKJ1CM-226Z E CAPACITOR 22uF 16V M R342 NRSA02J-101X MG RESISTOR 100Ω 1/10W J C783 NCB31AK-224X C CAPACITOR 0.22uF 10V K R343 NRSA63J-222X MG RESISTOR 2.2kΩ...
  • Page 58  Symbol No. Switch board (KD-S73R/S71R_E2,EX2) Part No. Part Name Description Local Block No. [0][4] R722 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J  Symbol No. R723 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J Part No. Part Name Description Local R724 NRSA63J-0R0X MG RESISTOR 0Ω...
  • Page 59  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local S73R R601 NRSA63J-821X MG RESISTOR 820Ω 1/16W J E2D,S R602 NRSA63J-821X MG RESISTOR 820Ω 1/16W J D610 SML-310DT/KL/-X 73RE R603 NRSA63J-122X MG RESISTOR 1.2kΩ...
  • Page 60 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A2 A3 A4 A5 A6 A7 KIT : A8 A9 A10 A11 A12 3-16...
  • Page 61 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GET0118-001A INST BOOK ENG GER FRE DUT GET0118-002A INST BOOK SPA ITA POL RUS S71RE2D,S71RED,S73RE2D,S73RED S71REX2D,S71REXD,S73REX2D,S73REX GET0118-003A INST BOOK SWE DAN FIN GRE GET0118-004B INSTALL MANUAL GET0118-005B INSTALL MANUAL S71RE2D,S71RED,S73RE2D,S73RED...

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