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SERVICE MANUAL CD RECEIVER 49839 2003 KD-LH3105 Area Suffix U ------- Other Areas TABLE OF CONTENTS Precautions ................3 Disassembly method .
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SPECIFICATION AUDIO AMPLIFIER Maximum Power Output Front 50 W per channel SECTION Rear 50 W per channel 19 W per channel into 4 Ω, 40 Hz Continuous Power Front Output (RMS) to 20 000 Hz at no more than 0.8% total harmonic distortion. 19 W per channel into 4 Ω, 40 Hz Rear to 20 000 Hz at no more than...
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.
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.
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SECTION 2 Disassembly method 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 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 Joint d Joint e (See Figs.3 and 4) • Prior to performing the following procedures, remove the front panel assembly and bottom cover. (1) Remove the two screws A on the both sides of the main body.
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2.1.6 Removing the main board (See Fig.7) • Prior to performing the following procedures, remove the front Main board CN601 panel assembly, bottom cover, front chassis assembly, heat sink and rear bracket. (1) Remove the two screws H attaching the main board. (2) Disconnect the connector CN601 and remove the main board in an upward direction.
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2.1.9 Removing the front board (See Figs.10 to 12) Front panel assembly • Prior to performing the following procedures, remove the 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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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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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 (2) Move the clamper assembly in the direction of the arrow to spring 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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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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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 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'.
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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.
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(5) Electric voltmeter Frequency Band (6) Digital tester 87.5MHz to 107.9MHz (7) Tracking offset meter (8) Test Disc JVC :CTS-1000 (with channel interval set to 200kHz) (9) Extension cable for check 87.5MHz to 108.0MHz EXTSH002-22P × 1 (with channel interval set to 50kHz)
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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 Check the feed motor Is 6V or 2V present at 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 commands Disc inserted 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 BA3220FV-X (IC301,IC281) : Line out amp • Pin layout 3220 • Block diagram OUTL OUTR RGND LGND REFR REFL FILTER 1-28 (No.49839)
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BA5830FP-X (IC681) : Power driver • Pin Layout 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 : [ ] • Pin function Pin No.
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4.3 BR24L16F-W-X (IC703) : EEPROM • Pin layout • Pin function Symbol Function Power supply. A0,A1,A2 No use connect to GND. Serial clock input. I/O Serial data I/O of slave and ward address. Write protect terminal. • Block diagram 16kbit EEPROM allay 8bit 11bit Address...
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HA13164A (IC901) : Regulator • Terminal 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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4.6 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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4.7 HD74HCT126T-X : (IC503) Buffer • Pin arrangement • 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.49839)1-33...
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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 4.9 IC-PST9333U-X (IC702) : Regulator • Pin layout •...
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4.10 RPM6938-SV4 (IC805) : Remote control receiver • Pin diagram • Block diagram Comp Rout Detector conversion trimming circuit magnetic shield 4.11 TDA7404D-X (IC911):Car radio signal processor • Terminal layout • Block diagram Mono Fader Mono Fader Mono Fader Mono Fader Mono Fader Mono Fader Zero Cross...
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4.12 LH28F160BJHET92 (IC802) : 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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4.13 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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4.21 TC94A14FA (IC621) : DSP & DAC • Terminal 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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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. LPFO O 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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Data to LCD driver (Not connect) LCDCK Clock to LCD driver (Not connect) BUSS0 JVC BUS data BUSSI JVC BUS data BUSSCK I/O JVC BUS clock Pull up to 3.3V DVCC Connect to 3.3V Crystal oscillator (24.576MHz) DVSS Connect to ground Crystal oscillator (24.576MHz) Pull up to 3.3V...
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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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4.24 UPD784217AGC205 (IC701) : CPU • Pin Layout • Pin function 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 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 Not use SD/ST...
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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.49839) Printed in Japan...
KD-LH3105 PARTS LIST [ KD-LH3105 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix U --------------------- Other Areas - 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.01~03)
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KD-LH3105 Exploded view of general assembly and parts list Block No.
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KD-LH3105 General assembly Block No. [M][1][M][M] Symbol No.Part No. Part Name Description Local Symbol No.Part No. Part Name Description Local GE30912-006A REAR BRACKET QYSDST2606Z SCREW 2.6mm x 6mm ------------ CD MECHA QYSDST2606Z SCREW 2.6mm x 6mm GE10043-210A TOP CHASSIS QYSDST2606Z SCREW 2.6mm x 6mm...
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KD-LH3105 CD mechanism assembly and parts list Block No. Grease TNG-87 TN-2001-1013 GP-501MK CFD-005Z GP-501A...
KD-LH3105 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...
KD-LH3105 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 D941 UDZS11B-X Z DIODE D942 1SS355-X SI DIODE IC131 BU4066BCFV-X D951 1SS355-X SI DIODE IC132 NJM4565V-X IC281...
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KD-LH3105 Symbol No.Part No. Symbol No.Part No. Part Name Description Local Part Name Description Local C267 NCB31HK-472X C CAPACITOR 4700pF 50V K C924 NCB31EK-473X C CAPACITOR 0.047uF 25V K C268 NCB31HK-682X C CAPACITOR 6800pF 50V K C929 NCB31CK-473X C CAPACITOR 0.047uF 16V K...
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KD-LH3105 Symbol No.Part No. Symbol No.Part No. Part Name Description Local Part Name Description Local R182 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R751 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R183 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R754 NRSA63J-331X MG RESISTOR 330Ω...
KD-LH3105 Symbol No.Part No. Symbol No. Part No. Part Name Description Local Part Name Description Local R992 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J D401 MA152WK-X DIODE R993 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J D402 SML-310LT/MN/-X R996 NRSA63J-223X MG RESISTOR 22kΩ...
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KD-LH3105 Symbol No. Part No. Symbol No. Part No. Part Name Description Local Part Name Description Local C824 NCB31EK-473X C CAPACITOR 0.047uF 25V K R807 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J C825 NBE20JM-106X TA E CAPACITOR 10uF 6.3V M...
KD-LH3105 Symbol No. Part No. Symbol No. Part No. Part Name Description Local Part Name Description Local R888 NRSA63J-561X MG RESISTOR 560Ω 1/16W J C506 NCB31HK-103X C CAPACITOR 0.01uF 50V K R889 NRSA63J-821X MG RESISTOR 820Ω 1/16W J...
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KD-LH3105 Symbol No. Part No. Symbol No. Part No. Part Name Description Local Part Name Description Local C646 NCB31HK-103X C CAPACITOR 0.01uF 50V K R554 NRSA63J-333X MG RESISTOR 33kΩ 1/16W J C651 NEAD0JM-476X E CAPACITOR 47uF 6.3V M...
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KD-LH3105 Symbol No. Part No. Part Name Description Local R685 NRSA63J-682X MG RESISTOR 6.8kΩ 1/16W J R686 NRSA63J-123X MG RESISTOR 12kΩ 1/16W J R687 NRSA63J-682X MG RESISTOR 6.8kΩ 1/16W J R688 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R689 NRSA63J-123X MG RESISTOR 12kΩ...
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KD-LH3105 Packing materials and accessories parts list Block No. P2 A2 A3 A4 A5 A6 A7 A8 A9 A10A11A12 3-14...
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KD-LH3105 Packing and accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local GET0149-001A INST BOOK ENG ARA CHI THA GET0149-002A INST BOOK GET0149-003A INSTALL MANUAL ENG ARA CHI THA GET0149-004A INSTALL MANUAL GET0165-003A DEMO MODE SHEET...
KD-LH3105 SCHEMATIC DIAGRAMS CD RECEIVER KD-LH3105 Area Suffix U ------------------- Other Areas K D-LH3105 Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5,6 No.49839SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. 2003/05...
KD-LH3105 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...
KD-LH3105 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...
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KD-LH3105 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49839SCH) 2003/05...