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JVC KD-LX300 Service Manual
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JVC KD-LX300 Service Manual

JVC KD-LX300 Service Manual

Cd receiver
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Download this manual See also: Service Manual, Instruction Manual

SERVICE MANUAL

CD RECEIVER
KD-LX300/KD-LX100
Difference piont
KD-LX300
KD-LX100
Contents
Safety preccaution
Preventing static electricity
Disassembly method
Adjustment method
Extension cord connectiong method
Functions of the mechanism
under the service mode
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
COPYRIGHT
7
8
9
10
11
12
SEL
LINE IN
SUBWOOFER OUT
O
X
2001 VICTOR COMPANY OF JAPAN, LTD.
KD-LX300/KD-LX100
Area Suffix
J
Northern America
OFF
O
X
1-2
1-3
1-4
1-13
1-14
1-16
1-18
1-19
1-19
1-21~37
No.49635
Apr. 2001

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Summary of Contents for JVC KD-LX300

  • Page 1: Service Manual

    KD-LX300/KD-LX100 SERVICE MANUAL CD RECEIVER KD-LX300/KD-LX100 Area Suffix Northern America Difference piont LINE IN SUBWOOFER OUT KD-LX300 KD-LX100 Contents Safety preccaution Preventing static electricity Disassembly method Adjustment method 1-13 Extension cord connectiong method 1-14 Functions of the mechanism under the service mode...

  • Page 2: Description Of Major Ics

    KD-LX300/KD-LX100 Description of major ICs FAN8037 (IC661) : CD driver 1. Pin layout & Block diagram 48 47 46 45 44 43 41 40 39 38 37 STAND BY T.S.D ALL MUTE POWER SAVE 13 14 15 16 17 18...
  • Page 3 KD-LX300/KD-LX100 UPD784215AGC-128 (IC701) : UNIT CPU 1.Terminal Layout 2.Pin Function (1/2) Function Symbol Pin No. Detection switch of CD mechanism Detection switch of CD mechanism Detection switch of CD mechanism Reset signal input from CD mechanism REST-SW Loading motor control signal output...
  • Page 4 KD-LX300/KD-LX100 Pin Function (2/2) Function Symbol Pin No. LCD-CE1 Chip enable output to LCD driver BUZZER BUZZER control signal output E2PR-DA-I Data input terminal from EEPROM E2PR-DA-O Data output terminal for EEPROM E2PR-CLK Clock signal I/O terminal with EEPROM BUS-I/O...
  • Page 5 KD-LX300/KD-LX100 TC9490FA (IC521) : DSP 1. Pin layout & Block diagram DVss3 49 32 TEZI Clock RO 50 31 TEI generator 30 SBAD DVDD3 51 DVR 52 29 FEI 1-bit Servo control LO 53 28 RFRP 27 RFZI DVss3 54...
  • Page 6 KD-LX300/KD-LX100 2. Pin function (2/2) Pin No. Symbol Function /UHSO Playback speed mode output terminal PVDD3 PLL-only 3.3V power supply voltage terminal EFM and PLCK phase difference signal output terminal TMAX TMAX detection result output terminal LPFN Inverted input terminal for PLL LPF amp...
  • Page 7 KD-LX300/KD-LX100 BA3220FV-X (IC301,IC401) : Driver 1. Pin layout & Block diagram LGND OUTL OUTR RGND CR - CR + REFL REFR FILTER 2. Pin function Symbol Function Powe supply terminal for amp. power supply terminal. input terminal. Negative feedback terminal.
  • Page 8 KD-LX300/KD-LX100 BD3860K (IC911) : E. volume 1.Terminal layout 2.Bockdiagram GND FIL VCC SEL1 VIN1 LOUD1 HF1 LF1 DET1 VCA1 MIX1 BBOUT1 TIN1 TNF1 BNF1 BOUT1 POWER FADER SUPPLY MAIN INPUT OUTF1 CH1 FRONT TREBLE BASS VOLUME GAIN 0 -5 dB...
  • Page 9 KD-LX300/KD-LX100 BR24C16F-X (IC703) : EEPROM 1. Pin layout 2. Pin function Symbol I/O 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. 3. Block diagram 16kbit EEPROM allay...
  • Page 10 KD-LX300/KD-LX100 HA13164 (IC961) : Regulator 1.Terminal layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2.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...
  • Page 11 KD-LX300/KD-LX100 NJM2100M (IC821) : Operation amp HD74HC126FP (IC771) : Changer control A OUT B OUT – A IN– + – A IN+ B IN– B IN+ HD74HC126 M5282FP-XE (IC321) : E. volume 1. Pin layout 2. Block diagram 3. Pin function...
  • Page 12 KD-LX300/KD-LX100 LA4743K (IC941) : Power amp 1.Block diagram 2.Terminal layout 3.Pin function Pin No. Symbol Function Header of IC Power GND Outpur(-) for front Rch OUTRR- Stand by input STBY Output (+) for front Rch OUTRR+ Power input VCC1/2 Output (-) for rear Rch...
  • Page 13 KD-LX300/KD-LX100 LC75811W (IC602) : LCD driver 1. Pin layout 2. Block diagram COMMON SEGMENT DRIVER DRIVER LATCH CGRAM CGROM ADRAM VLCD INSTRUCTION 5x9x16 5x9x240 DECODER bits bits bits VLCD1 VLCD2 ADDRESS DCRAM INSTRUCTION VLCD3 COUNTER 48x8 REGISTER bits ADDRESS REGISTER...
  • Page 14 KD-LX300/KD-LX100 LC75823W (IC602) : LCD driver 1. Pin Layout & Symbol 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 2.
  • Page 15 KD-LX300/KD-LX100 NJM2904M (IC951) : Dual ope amp NJM4565MD (IC323,IC960) : Ope amp 1. Pin layout & Block diagram 1. Pin layout A OUTPUT 1 A OUT 1 8 V+ A - INPUT 2 B OUTPUT A -IN 2 7 B OUT...
  • Page 16 KD-LX300/KD-LX100 TA2147F-X (IC601) : Head amp 1. Pin layout & Block diagram 10 pF 30 k 40 k 1.3V 180 k 40 pF 40 k 60 A 10 pF 2. Pin function Pin No. Symbol Function 3.3V power supply terminal...
  • Page 17 KD-LX300/KD-LX100 TA8273H (IC941) : 4ch amp 1. Pin layout 2. Block diagram Vcc1 Vcc2 OUT1 (+) PW-GND1 OUT1 (-) OUT2 (+) PW-GND2 OUT2 (-) AUX IN OUT3 (+) PW-GND3 OUT3 (-) OUT4 (+) PW-GND4 OUT4 (-) DIAGNOSIS STBY MUTE 1-36...
  • Page 18 KD-LX300/KD-LX100 TB2118F-X (IC21) : PLL 1.Terminal Layout 2.Block diagram Constant power supply voltage Buff. ON/OFF AM CP. Phase OSC circuit Reference Counter Comparator switch FM VCO 4-bit Prescaler Swallow counter 12-bit AMVCO REG. Programmable counter 20-bit BINARY COUNTER Resistor 1...

  • Page 19: Block Diagram

    KD-LX300/KD-LX100 Block diagram TU-L IC911 IC171 AU.IL AUX IN FM/AM TU-R E.VOL LINE IN AU.IR SUB WOOFER TUNER PACK SEEK/STOP IC301 LOUTF DRIVER LOUTR FM/AM FM/AMOSC IC21 ROUTF IC401 ROUTR DRIVER BANDIN PLL-CK PLL-DA PLL-CE SUBW-L FM/AM SUBW-R W.VOL IC321 IC323 E.VOL...

  • Page 20: Standard Schematic Diagrams

    KD-LX300/KD-LX100 KD-LX300/KD-LX100 Standard schematic diagrams Main amp sction Parts are safety assurance parts. When replacing those parts make sure to use the specified one. TUNER SIGNAL CD SIGNAL CD CHANGER SIGNAL AUX IN SIGNAL SUB WOOFER SIGNAL FRONT SIGNAL REAR SIGNAL...
  • Page 21 KD-LX300/KD-LX100 CD servo, LCD & Key control section (KD-LX300) CD servo, LCD & Key control section (KD-LX100)
  • Page 22 KD-LX100/KD-LX300 KD-LX100/KD-LX300 (General assembly) Parts list (General assembly) Parts list Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area DG1002000 CHASSIS TOP LV30981-005A CLUTCH ASS'Y DG4114000 INSULATOR (SHAS YWP020300 C.WASHER...

  • Page 23: Parts List

    KD-LX100/KD-LX300 (CD mechanism) Parts list Block No. M2MM Item Parts number Parts name Q'ty Description Area 30310101T FRAME 30310103T DANPER PIN 30310107T UPPER PLATE 30310108T SEL STOP PLATE 30310142T SEL ARM (L)L 30310143T SEL ARM (R)L 30310145T S ARM SPRING(L)

  • Page 24: Parts List (Cd Mechanism)

    KD-LX100/KD-LX300 (CD mechanism) Parts list Block No. M2MM Item Parts number Parts name Q'ty Description Area 68150232T CONNECTOR TKC-W26X-C1 30311105T SOPPORT PLATE 30311138T GR MT BLK(N) 30311109T LDG GEAR (2) 30311110T LDG GEAR (3) 30311112T LDG GEAR (5) 30311136T LDG ROLLER 30311118T L.P SPRING (L)
  • Page 25 KD-LX100/KD-LX300 Electrical parts list (Main board) Block No. 01 Item Remarks Parts number Parts name Area Item Remarks Parts number Parts name Area BZ791 000393760 BUZZER CD11PA-XZ C 251 CE4754468 CAPACITOR 4.7 UF CY473623J CAPACITOR 0.047 UF C 252 CY122623J CAPACITOR 0.0012UF...
  • Page 26 KD-LX100/KD-LX300 (Main board) Electrical parts list Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 508 CY104423J CAPACITOR 0.1 UF C 771 CY473623J CAPACITOR 0.047 UF C 509 CY104423J CAPACITOR 0.1 UF...
  • Page 27 KD-LX100/KD-LX300 Electrical parts list (Main board) Block No. 01 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area CN701 KZ041170L CONNECTOR 17P FPC 52559- L 961 000125560 CHOKE COIL CN702 KZ040060L CONNECTOR 6P FPCR 52746- DTA114EUA-X DIGITAL.TR...

  • Page 28: Electrical Parts List

    KD-LX100/KD-LX300 (Main board) Electrical parts list Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 134 RK681JA0J RESISTOR RK 1/10W 680 R 308 RK000JA0J RESISTOR KD-LX100 R 135 RK101JA0J RESISTOR KD-LX300...
  • Page 29 KD-LX100/KD-LX300 (Main board) Electrical parts list Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 524 RK472JA0J RESISTOR RK 1/10W 4.7K R 730 RK103JA0J RESISTOR RK 1/10W 10K R 525 RK103JA0J...
  • Page 30 KD-LX100/KD-LX300 (Main board) Electrical parts list Block No. 01 Item Remarks Parts number Parts name Area R 984 RK473JA0J RESISTOR RK 1/10W 47K R 985 RK472JA1J N.F RESISTOR RK 1/10W 4.7K R 986 CY104423J RESISTOR KD-LX100 R 988 RK332JA0J RESISTOR RK 1/10W 3.3K...
  • Page 31 KD-LX100/KD-LX300 Electrical parts list (Front board) Block No. 02 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area C 601 CY475316J CAPACITOR 4.7 UF R 604 RK473JA0J RESISTOR RK 1/10W 47K C 602 CY104423J CAPACITOR 0.1 UF...
  • Page 32 KD-LX100/KD-LX300 (Front board) Electrical parts list Block No. 02 Item Remarks Parts number Parts name Area S 636 000392870-T SWITCH TACT SW LS8J2 S 637 000392870-T SWITCH TACT SW LS8J2 S 638 000392870-T SWITCH TACT SW LS8J2 S 639 000392870-T...

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Kd-lx100

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