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KD-SX995 SERVICE MANUAL CD RECEIVER 49792 2003 KD-SX995 Area suffix U --------------- Other Areas SOUND SOURCE VO L VO L TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .
KD-SX995 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. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
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KD-SX995 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.
KD-SX995 SECTION 2 Disassembly method 2.1 Main body 2.1.1 Removing the front panel assembly Front panel assembly (See Fig.1) (1) Push the detach button in the lower left part of the front panel and remove the front panel assembly in the direction of the arrow.
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KD-SX995 2.1.3 Removing the heat sink (See Fig.5) (1) Remove the two screws C and two screws D on the left side of the main body. Heat sink Fig.5 2.1.4 Removing the bottom cover (See Figs.6 and 7) • Prior to performing the following procedure, remove the front Joint d panel assembly, front chassis assembly and heat sink.
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KD-SX995 2.1.6 Removing the main board (See Fig.9) • Prior to performing the following procedure, remove the front CN101 Main board panel assembly, front chassis assembly, heat sink, bottom cover and rear bracket (1) Remove the two screws H attaching the main board.
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KD-SX995 2.1.9 Removing the front board (See Figs. 12 to 14) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the four screws L on the back side of the front panel assembly. (2) Release the nine joints h.
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KD-SX995 2.2 CD Mechanism section 2.2.1 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.
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KD-SX995 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. (1) Remove the screw B fixing the connector board.
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KD-SX995 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. switch Connector board Pickup Fig.6 Tab c...
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KD-SX995 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.
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KD-SX995 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.
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KD-SX995 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 as- sembly in the direction of the arrow to remove it from the chassis rivet assembly.
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KD-SX995 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.
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KD-SX995 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.
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KD-SX995 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. to release from the link plate (joint t) and turn in the direction of the arrow to release the joint u.
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KD-SX995 2.2.12 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...
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KD-SX995 2.2.13 Removing the select arm R / link plate Link plate Joint r Joint c' (See Figs.27 and 28) Joint b' Select arm R • Prior to performing the following procedure, remove the top plate assembly. (1) Bring up the select arm R to release from the link plate...
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KD-SX995 2.2.15 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.
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KD-SX995 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. (1) Remove the screw K attaching the loading gear bracket.
KD-SX995 2.2.17 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.
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KD-SX995 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.
5. Electric voltmeter FM 87.5MHz ~ 108.0MHz 6. Digital tester AM 531kHz ~ 1602kHz 7. Tracking offset meter 8. Test Disc JVC :CTS-1000 9. Extension cable for check Dummy load EXTSH002-22P 1 Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered...
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KD-SX995 3.2 Flow of functional operation unit TOC read Power ON When the laser diode correctly When the pickup correctly moves Set Function CD emits to the inner area of the disc Microprocessor $82 $81 commands Microprocessor Disc inserted 3.3V commands 3.3V...
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KD-SX995 3.2.1 Feed section Is the voltage output at Is the wiring for IC621 Is 3.3V present at IC681 IC621 pin "40" 5V or 0V? pin "40"? pin "20"? Check CD 8V Check the vicinity of and 5V. IC621. Is 4V present at both...
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KD-SX995 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 power cord. with a alcohol soaked cotton swab.
KD-SX995 SECTION 4 Description of major ICs 4.1 BA3220FV-X (IC361,IC381): Line out amp • Pin layout 3220 • Block diagram OUTL OUTR RGND LGND REFR REFL FILTER (No.49792)1-27...
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KD-SX995 4.2 BR24C01AFV-W-X (IC502): EEPROM • Pin layout • Block diagram 1kbit EEPROM ARRAY 8bit 7bit SLAVE/WORD ADDRESS DATA 7bit ADDRESS REGISTER DECODER REGISTER START STOP CONTROL LOGIC HIGH VOLTAGE GEN. Vcc LEVEL DETECT • Pin function Pin name Description...
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KD-SX995 4.3 BR24C16F-X (IC771): EEPROM • Pin layout • Pin function Symbol Function Power supply. A0,A1,A2 No use connect to GND. Serial clock input. Serial data I/O of slave and ward address. Write protect terminal. • Block diagram 16kbit EEPROM allay...
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KD-SX995 4.7 HD74HC126FP-X (IC801): Buffer • Pin layout • Pin function Input Output Note: H:High level L:Low level X:Irrelevant Z:Off(High-impedance) State a 3-state input • Block diagram Output Input Output Sample as Load Circuit 1 Output Sample as Load Circuit 1...
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KD-SX995 4.8 HD74HCT126T-X(IC503): Buffer • Pin layout • Pin function Input Output H : High level L : Low level X : Irrelevant Z : Off (Hhigh-impedance) state of a 3-stage output • Block diagram (No.49792)1-33...
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KD-SX995 4.9 LA47505 (IC301): Power amp. • Block diagram Protective circuit Stand by Switch Ripple Mute Filter circuit protective circuit Muting & On Time Control Circuit 1-34 (No.49792)
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KD-SX995 • 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 Vcc1/2 Power input OUTRR- Output (-) for rear Rch...
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KD-SX995 4.10 LA6579H-X (IC681): 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 H : ON VO2+ MUTE MUTE L : OFF...
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KD-SX995 • 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 VO2+...
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KD-SX995 4.11 LC75873NW (IC601): LCD Driver • Pin layout • Block diagram VDD1 COMON SEGMENT DRIVER DRIVER VDD2 CLOCK SHIFT REGISTOR GENERATOR ADDRESS DETECTOR • Pin function Pin No. Pin name Description 79,80 S1/P1 to S4/P4 O Segment outouts for displaying the display data transferred by serial data input.
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KD-SX995 • 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 Laser diode amp output pin APC circuit ON/OFF control signal, laser diode (LDO) control signal input or bottom/peak detection frequency change pin.
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KD-SX995 4.20 UPD784215AGC199 (IC701): Main micon • Pin layout 100 ~ 76 26 ~ 50 • Pin function Pin No. Symbol Function CD RESET Reset output for CD sub-micon CD MUTING Muting request of CD sub-micon No use ANT CONT...
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KD-SX995 Pin No. Symbol Function BUZZER Buzzer output E2PROM-DI I2C data input E2PROM-DO I2C data output E2PROM-CLK I2C clock output OPEN Door open switch 49~52 No use SD/ST Station detector or stereo indicator input No use MONO Monaural selection output H:Monaural...
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KD-SX995 4.21 TC94A14FA (IC621): 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 decoder Audio out Digital circuit output Micro-...
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KD-SX995 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 " LPFN I Inverted input pin for PLL LPF amp.
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Chip enable output for LCD driver LCD DA Data output for LCD driver LCD CK Clock output for LCD driver BUS I/O JVC BUS input/output control terminal (negative) BUS I/O JVC BUS input/output control terminal BUS SI JVC BUS data input terminal BUS SO...
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CD mechanism SW1 input terminal B.DET Backup power supply detection input terminal (H:Stop mode) P.DET Main power off detection input terminal (H:HALT mode) BUS INT JVC BUS communication start interrupt input terminal MP3 REQ CD MP3 request signal input terminal VSS0 VDD1 3.3V...
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KD-SX995 4.23 TDA7404D-X (IC161): Carradio signal processor • Pin layout • Block diagram Mono Fader Mono Fader Mono Fader Mono Fader Mono Fader Mono Fader Zero Cross Mono/Beep Beep Digital Control I C-Bus Supply 1-52 (No.49792)
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KD-SX995 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49792) Printed in Japan 200303WPC...
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KD-SX995 SCHEMATIC DIAGRAMS CD RECEIVER KD-SX995 CD-ROM No.SML200303 Area suffix U --------------- Other Areas SOUND SOURCE Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5,6 No.49792SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/03...
KD-SX995 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...
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KD-SX995 V ICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49792SCH) 2003/03...
KD-SX995 PARTS LIST [ KD-SX995 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix U --------------------- Other Areas - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 CD mechanism assembly and parts list (Block No.MB)
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KD-SX995 Exploded view of general assembly and parts list Block No.
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KD-SX995 Parts list (General assembly) Block No. M1MM Item Description Parts number Parts name Q'ty Area --------------------- CD MECHA VYSH101-009 SPACER SCREW QYSDST2004Z TOP CHASSIS GE10043-210A GE40135-001A EARTH PLATE GE30568-006A HEAT SINK GE30393-002A BOTTOM COVER FSMA3005-001 INSULATOR QYSDST2604Z SCREW 3 CHASSIS+CD MECHA...
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KD-SX995 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area VKW3001-330 COMP.SPRING 1 FOR EJECT BUTTO GE30547-001A DETACH BUTTON VKW3001-330 COMP.SPRING 1 FOR DETACH BUTT FSYH4036-081 SHEET VKZ4777-001 MINI SCREW 4 FRONT+REAR GE10045-001A REAR COVER...
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KD-SX995 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1013 GP-501MK CFD-005Z GP-501A...
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KD-SX995 Parts list (CD mechanism) Block No. MBMM Item Description Parts number Parts name Q'ty Area 30320101T FRAME 30320102T TOP COVER DANPER F 30320115T DANPER R 30320116T 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASS'Y 303205304T SPINDLE MOTOR A...
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KD-SX995 Parts list (CD mechanism) Block No. MBMM Item Parts number Parts name Q'ty Description Area 30321103T LOADING GEAR 3 30321104T LOADING GEAR 4 30321105T LOADING GEAR 5 30321106T LOADING GEAR 6 30321107T LOADING GEAR 7 30321111T ROLLER GUIDE 30321114T...
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KD-SX995 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area BZ841 QAN0023-001Z BUZZER C 306 QERF1EM-475Z E CAPACITOR 4.7MF 20% 25V QERF1CM-226Z E CAPACITOR 22MF 20% 16V...
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KD-SX995 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 852 NCB31EK-103X C CAPACITOR D 971 RB160M-30-X SB DIODE C 881 QERF1CM-226Z E CAPACITOR 22MF 20% 16V...
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KD-SX995 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 43 NRSA63J-471X MG RESISTOR R 385 NRSA63J-333X MG RESISTOR R 44 NRSA63J-221X MG RESISTOR R 386...
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KD-SX995 Block No. 01 Electrical parts list (Main board) Item Parts number Parts name Remarks Area R 881 NRSA63J-473X MG RESISTOR R 882 NRSA63J-472X MG RESISTOR R 891 NRSA63J-102X MG RESISTOR R 892 NRSA63J-473X MG RESISTOR R 901 QRE142J-102X C RESISTOR 1.0K 5% 1/4W...
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KD-SX995 Electrical parts list (Mecha control board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 501 NCB31AK-474X C CAPACITOR C 630 NCB31EK-333X C CAPACITOR C 502 NCB31HK-103X C CAPACITOR C 631...
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KD-SX995 Electrical parts list (Mecha control board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area IC652 TC94A02F-007 R 551 NRSA63J-104X MG RESISTOR IC653 LP61L1024S-12-X R 552 NRSA63J-104X MG RESISTOR IC681 LA6579H-X...
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KD-SX995 Block No. 02 Electrical parts list (Mecha control board) Item Parts number Parts name Remarks Area R 685 NRSA63J-333X MG RESISTOR R 686 NRSA63J-822X MG RESISTOR R 687 NRSA63J-0R0X MG RESISTOR R 688 NRSA63J-303X MG RESISTOR R 689 NRSA63J-223X...
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KD-SX995 Electrical parts list (Front board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 601 NBE20JM-475X TS E CAPACITOR R 623 NRSA02J-122X MG RESISTOR C 602 NCB31HK-103X C CAPACITOR R 624...
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KD-SX995 Packing materials and accessories parts list Block No. Block No. A1~A6 KIT:A7~A11 3-16...
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KD-SX995 Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area FSPG4002-001 POLY BAG 1 FOR INST.BOOK QPA00801205 POLY BAG QPA01003003 POLY BAG FSYH4036-068 SHEET 1 MIRAMA SHEET QPC03004315P POLY BAG GE30715-001A CARTON GE10070-001A EPS CUSHION Parts list (Accessories) Block No.