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KD-LH3101 SCHEMATIC DIAGRAMS CD RECEIVER KD-LH3101 CD-ROM No.SML200305 Area Suffix E ---------- Continental Europe EX -------------- Central Europe K D-LH3101 Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5,6 No.49843SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/05...
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KD-LH3101 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.
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KD-LH3101 Block diagram J121 TU.L FRONT VA,VB VOUTL CD.L-CH TU.R LINE OUT VE,VF FM/AM VOUTR IC572 CD.R-CH IC601 MD,LD IC571 RWSEL,IOP TUNER CD LPF REAR CD RF 24bit DAC LINE OUT OUT FL CD-L OUT RL CD-R DACML OUT FR REGC DACMC OUT RR...
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KD-LH3101 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49843SCH) 2003/05...
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SERVICE MANUAL CD RECEIVER 49843 2003 KD-LH3101 Area Suffix E ---------- Continental Europe EX -------------- Central Europe K D-LH3101 TABLE OF CONTENTS Precautions ................1-3 Disassembly method .
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SPECIFICATION AUDIO Maximum Power Output Front 50 W per channel AMPLIFIER Rear 50 W per channel SECTION 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no Continuous Power Output (RMS) Front more than 0.8% total harmonic distortion. 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no Rear more than 0.8% total harmonic distortion.
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.
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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.
SECTION 2 Disassembly method Main body 2.1.1 Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower left part of the front Front panel assembly panel assembly and remove the front panel assembly. Detach button Fig.1 2.1.2 Removing the bottom cover (See Fig.2)
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2.1.3 Removing the front chassis assembly (See Figs.3 and 4) • Prior to performing the following procedures, remove the front panel assembly and bottom cover. Joint d Joint e (1) Remove the two screws A on the both sides of the main body.
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2.1.5 Removing the rear bracket (See Fig.6) • Prior to performing the following procedures, remove the bot- tom cover. Rear bracket (1) Remove the three screws E, screw F and three screws G on the back side of the main body. (2) Remove the rear bracket.
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2.1.7 Removing the mecha control board (See Fig.8) • Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis assembly, heat sink, rear bracket and main board. (1) Remove the five screws J attaching the mecha control board.
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2.1.9 Removing the front board (See Figs.10 to 12) • Prior to performing the following procedures, remove the front panel assembly. Front panel assembly (1) Remove the five screws L attaching the rear cover on the back side of the front panel assembly. (See Fig.10.) (2) Release the eight joints g, remove the rear cover from the front panel assembly.
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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. Top cover Joints a Fig.1...
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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. (2) Solder the short-circuit point on the pickup.
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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 DET switch DET switch wire Tab c...
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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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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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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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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 the pu.
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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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Fig.21 Link plate Joint t 2.2.11 Removing the mode sw. / select lock arm Mode sw. (See Figs.22 and 23) Select lock arm • Prior to performing the following procedure, remove the top plate assembly. (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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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 Joint v the shorter end of the select lock arm spring to the hook w on the top plate.
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2.2.13 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. (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'.
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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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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. The loading gear 6 and 7 come off the loading gear brack- (2) Pull out the loading gear 5.
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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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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.
(3) Digital tester Output Level Line out 2.0V (Vol. MAX) (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 Dummy load (6) Extension cable for check Exclusive dummy load should be used for AM,and FM. For FM EXTSH002-22P × 1 dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since...
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Troubleshooting 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 "6"? Check CD 8V Check the vicinity of and 5V. IC621. Is 4V present at both Is 6V or 2V present at Check the feed motor sides of the feed motor?
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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 Microprocessor Disc inserted commands commands 3.3V 3.3V Hi-Z TC94A14FA "38"...
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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.
SECTION 4 Description of major ICs BA5830FP-X (IC681) : Power driver • Pin Layout & Block diagram BIAS LD/SLED Pre Vcc CONTROL Vcc2 1.65V Level shifter Level shifter T.S.D Level shifter Level shifter MUTE Vcc1 2.4V CONTROL PreGND T.S.D : thermal shutdown Unit of resistance : [ ] •...
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BD4824FVE-W (IC803) : Voltage detector • Pin Layout • Block diagram N.C. Vref • Pin function Pin No. Symbol Function VOUT Output Substrate (Connect with GND) N.C. Non connection Power supply input 1-30 (No.49843)
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BR24C01AFV-W-X (IC201) : EEPROM • Pin layout • Block diagram 1kbit EEPROM ARRAY 8bit 7bit SLAVE/WORD ADDRESS DATA 7bit DECODER ADDRESS REGISTER REGISTER START STOP CONTROL LOGIC HIGH VOLTAGE GEN. Vcc LEVEL DETECT • Pin function Pin name Description Power supply Ground (0v) A0,A1,A2 Slave address set...
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BR24L32F-W-X (IC703) : EEPROM • Pin layout • Block diagram Symbol Function A0,A1,A2 Slave address set Ground (0V) Slave and word address Serial data input, serial data output Serial clock input Write protect input Power supply • Block diagram 32kbit EEPROM array 8bits 12bits Address...
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HA13164A (IC901) : Regulator • Pin layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 • Block diagram 100u 0.1u BATT.DET OUT ANT OUT Surge Protector 0.1u EXT OUT COMPOUT BIAS 0.1u VDD OUT ANT CTRL 0.1u CTRL...
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HD74HC126FP-X (IC781) : 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 Output Sample as Load Circuit 1 Note:...
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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.49843)1-35...
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IC-PST3424U-X (IC803) : Reset • Pin layout VOUT • Block diagram VOUT Vref • Pin function Pin Name Function Vout Reset Signal Output PIN VDD PIN / Voltage Detect PIN Non connect VSS PIN 4.10 IC-PST9333U-X (IC702) : Regulator • Pin layout •...
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4.12 LA47505 (IC301) : Power amp. • Block diagram Protective circuit Stand by Switch Ripple Mute Filter circuit protective circuit Muting & On Time Control Circuit 1-38 (No.49843)
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• 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 GND2 Power GND OUTRR+...
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4.13 LH28F160BJHET92 (IC803) : 16M flash memory • Pin Layout BYTE# 48-LEAD TSOP STANDARD PINOUT 12mm x 20mm TOP VIEW RY/BY# • Block Diagram to DQ Output Input buffer buffer I/O logic ID code BYTE# register Command Status user register interface Data comparator...
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• Pin function Pin No. Symbol Function Pin No. Symbol Function I/O Data input/output 1 to 8 A15 to A8 Address input for memory address DQ10 I/O Data input/output Address input for memory address I/O Data input/output Non connection DQ11 I/O Data input/output Write enable Power supply...
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4.14 MN102H60KCG (IC801) : LCD display sub CPU • Pin Layout • Pin function Pin No. Symbol Function LCD reset output Read enable output for extension memory Write enable output for extension memory VccWCNT Writing voltage control for external ROM RY/BY Read/Busy input for extension memory Chip select1 output for extension memory...
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Pin No. Symbol Function Not use VOL1 Rotary encoder input 1 VOL2 Rotary encoder input 2 Not use AGND Analog ground 62 to 65 KEY0 to KEY3 Key 0 to 3 input AD terminal Power supply SWLED0 SW_LED flashing output 0 for [VOL] key LED SWLED1 SW_LED flashing output 1 for [SEL] key LED SWLED2...
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• 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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4.23 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- controller Sub code interface...
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Pin No Symbol Descroption TMAX 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 Inverted input pin for PLL LPF amp. LPFO Output pin for PLL LPF amp.
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• Pin function Pin No. Symbol Function /RESET Hard reset input (H:Operation L: Reset) MiMD Mode select input for MCU interface (H:IIC L:Serial) /MiCS Chip select input for MCU interface Write-enable for external DRAM /MiLP Latch pulse input for MCU interface /RAS Low address strobe for external DRAM MiDio...
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LCDCE/SO Chip enable to LCD driver (Not connect) LCDDA/SI Data to LCD driver (Not connect) LCDCK Clock to LCD driver (Not connect) BUSS0 JVC BUS data BUSSI JVC BUS data BUSSCK JVC BUS clock Pull up to 3.3V DVCC Connect to 3.3V Crystal oscillator (24.576MHz)
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LCD/AD key/Remocon invalidity selection (L) RWSEL CD-RW switching (RW:L) LD/FE LOADING/FEED switching (H:LD, L:FE) LOAD Loading (L:Loading, H:Eject) /BUSIO JVC BUS input/output control (Inverting output) BUSIO JVC BUS input/output control Not connect DVSS Connect to ground Connect to P.DET DVCC Connect to 3.3V...
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4.26 UPD784217AGC220 (IC701) : CPU • Pin layout • Block diagram Pin No Symbol Function 1 to 7 Not use ANT CONT Antenna remote control Power supply Ground RESET System reset REMOCON Remocon input BUS-INT J-BUS INT Power save2, H means STOP mode CD-REQ CD REQ INPUT RDS-SCK...
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Pin No Symbol Function OPEN DOOR OPEN SW DETACH Detach detect input; H means detaching Not use 51 to 53 Not use EQ-CLK Clock output for e-EQ IC EQ-DA Data output for e-EQ IC EQ-LA Latch output for e-EQ IC 57 to 59 Not use RDS DA...
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4.27 TDA7404D-X (IC911) : Car radio 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 1-58 (No.49843)
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VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49843) Printed in Japan...
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KD-LH3101 PARTS LIST [ KD-LH3101 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix E------------ Continental Europe EX --------------- Central Europe - 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) 3- 6...
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KD-LH3101 Exploded view of general assembly and parts list Block No.
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KD-LH3101 General assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local VYTA500-001 PIN CAP (x2) QAM0464-001 STEERING REMOTE GE10043-210A TOP CHASSIS QMFZ047-150-T FUSE GE40135-001A EARTH PLATE GE30912-005A REAR BRACKET LH310 QYSDST2606Z SCREW...
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KD-LH3101 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-LH3101 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 303205304T SPINDLE MOTOR A 30320502T CLAMPER ARM 30320503T...
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KD-LH3101 Electrical parts list Main board Block No. [0][1][0][0] Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local D901 1N5404-TU-15 DIODE D904 RB160M-30-X SB DIODE IC51 SAA6579T-X D905 RB160M-30-X SB DIODE IC131 BU4066BCFV-X D906 MA152WA-X DIODE...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C218 NCB31HK-331X C CAPACITOR 330pF 50V K C951 QERF1CM-476Z E CAPACITOR 47uF 16V M C224 QERF1HM-105Z E CAPACITOR 1uF 50V M C952 NCB31AK-224X C CAPACITOR 0.22uF 10V K C254...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R142 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R748 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R143 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R749 NRSA63J-102X MG RESISTOR 1kΩ...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R989 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J Q801 2SB709A/QR/-X TRANSISTOR R992 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J Q802 2SB709A/QR/-X TRANSISTOR R993 NRSA63J-0R0X MG RESISTOR 0Ω...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C819 NCB31EK-473X C CAPACITOR 0.047uF 25V K R479 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J C820 NCB31EK-473X C CAPACITOR 0.047uF 25V K R801 NRSA63J-331X MG RESISTOR 330Ω...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R882 NRSA63J-391X MG RESISTOR 390Ω 1/16W J R883 NRSA63J-301X MG RESISTOR 300Ω 1/16W J C501 NCB31HK-103X C CAPACITOR 0.01uF 50V K R884 NRSA63J-271X MG RESISTOR 270Ω...
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KD-LH3101 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C640 NCB31HK-103X C CAPACITOR 0.01uF 50V K R548 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J C641 NEAD0JM-476X E CAPACITOR 47uF 6.3V M R549 NRSA63J-472X MG RESISTOR 4.7kΩ...
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KD-LH3101 Symbol No. Part No. Part Name Description Local R675 NRSA63J-331X MG RESISTOR 330Ω 1/16W J R677 NRSA63J-105X MG RESISTOR 1MΩ 1/16W J R681 NRSA63J-682X MG RESISTOR 6.8kΩ 1/16W J R682 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R683 NRSA63J-682X MG RESISTOR 6.8kΩ...
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KD-LH3101 Packing materials and accessories parts list Block No. A13A14 A15A16A17 A4 A5 A6 A7 A11A12 3-14...
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KD-LH3101 Packing and accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local GET0151-001A INST BOOK ENG,GER,FRE,DUT LH310 GET0151-002A INST BOOK RUS SPA ITA POL LH310 GET0151-003A INST BOOK DAN,FIN,SWE,GRE LH310 GET0165-001A DEMO MODE SHEET LH310 GET0165-002A DEMO MODE SHEET LVT1042-004A IMAGE CONVERTER LV43604-001A...