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JVC KD-LX555R manual

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Table of contents for the manual

  • Page 1

    SERVICE MANUAL COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.49793 2003/ 5 CD RECEIVER 49793 2003 4 KD-LX555R TABLE OF CONTENTS 1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Disassembly method . . . . . . . . . . . . . . [...]

  • Page 2

    1-32 (No.49793) SECTION 4 Description of major ICs 4.1 BA6956AN (IC830, IC831) : Revers ible motor driver • Block diagram • Pin function • Truth table TSD CONTROL LOGIC 1 2 3 4 5 6 7 8 9 V REF OUT2 RNF OUT1 VM Vcc FIN GND RIN Pin No. Symbol Function 1 VREF Output high voltage level control te rminal 2 OUT2 Output terminal for motor 3 RNF GND [...]

  • Page 3

    (No.49793)1-33 4.2 BR24C01AFV-W-X (IC1502) : EEPROM •P i n l a y o u t • Block dia gram • Pin functi on *1 An open drain output require s a pull-up resister. A0 A1 A2 GND Vcc WP SCL SDA A0 A1 A2 GND 1 2 3 4 Vcc WP SCL SD A 8 7 6 5 1kbit EEPROM ARRA Y 7bit ADDRESS DECODER SLA VE/WORD ADDRESS REGISTER 7bit 8bit DA T A REGISTER CONTROL LOGIC HIG[...]

  • Page 4

    1-34 (No.49793) 4.3 BR24C32F (IC703) : EEPROM • Pin Layout • Pin layout & Block diagram • Pin function 4.4 HD74HC126FP (IC771 ) : Changer Control SDA SCL WP BR24C32/F VCC GND A2 A1 A0 PIN NAME I/O Function VCC - Power Supply GND - Ground (0V) A0-A2 I Slave Address Set SCL I Serial Clock Input SDA I/O Slave and Word Ad dress. Serial Data I[...]

  • Page 5

    (No.49793)1-35 4.5 BU1923F (IC51) : RDS decoder •P i n l a y o u t • Block dia gram 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 QUAL RDATA Vref MUX VDD1 VSS1 VSS3 CMP RCLK N.C. XO XI VDD2 VSS2 T1 T2 - + 8th Switched capacitor filter PLL 57kHz RDS/ARI PLL 1187.5Hz Bi-phase decoder Differential decoder Measurement circuit Reference clock 100k 100k 120[...]

  • Page 6

    1-36 (No.49793) 4.6 HA13164A (IC961) : Regulator • Terminal la yout • Block diagram • Pin function 1234 56 789 1 0 1 1 1 2 1 3 1 4 1 5 Pin No. Symbol Function 1 EXTOUT Output voltage is VCC-1 V when M or H level applied to CTRL pin. 2 ANTOUT Output voltage is VCC-1 V when M or H level to CTRL pin and H level to ANT-CTRL. 3 ACCIN Connected to [...]

  • Page 7

    (No.49793)1-37 4.7 HD74HCT126T-X : (IC1500,IC1 503) Buffer • Pin arrangement • Pin function H : High level L : Low level X : Irrelevant Z : Off (Hhigh-impedance)state of a 3-stage outp ut • Block dia gram 14 13 12 11 10 9 8 1 2 3 4 5 6 7 Vcc 4C 4A 4Y 3C 3A 3Y 1C 1A 1Y 2C 2A 2Y GND Input Output CA Y LX Z HL L HH H 1Y 2Y 3Y 4Y 1A 1C 2A 2C 3A 3C[...]

  • Page 8

    1-38 (No.49793) 4.8 LA47505 (IC941) : Power amp. • Terminal la yout Muting & On T ime Control Circuit protective circuit Mute circuit Protective circuit Ripple Filter Stand by Switch 11 16 14 13 25 15 10 4 1 12 22 17 19 18 21 23 24 2 3 5 8 7 9 20 6[...]

  • Page 9

    (No.49793)1-39 • Terminal layout • Pin functi on AC CONT1 GND1 OUTFR- STBY OUTFR+ Vcc1/2 OUTRR- GND2 OUTRR+ VREF INRR INFR SGND INFL INRL ONTIME OUTRL+ GND3 OUTRL- Vcc3/4 OUTFL+ MUTE OUTFL- GND4 NC Pin No. Symbol Function 1 AC CONT1 Header of IC 2 GND1 Power GND 3 OUTFR- Outpur(-) for front Rch 4 STBY Stand by input 5 OUTFR+ O utput (+) for fro[...]

  • Page 10

    1-40 (No.49793) 4.9 LA6579H-X (IC1681) : 4-Channel bridge driver • Pin layout & Block diagram 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FR FR VIN1 VIN1-B VIN1+B S-GND VIN1-S W MUTE VREFIN VCCS 3.3VREG REGIN VIN2G VIN2 VIN3G VIN3 FR VIN1-A VIN1+A VCCP1 VO+ VO- VO2+ VO2- VO3+ VO3- VO4+ VO4- VCCP2 VIN4 VIN4G FR +[...]

  • Page 11

    (No.49793)1-41 • Pin functi on Pin No. Symbol Function 1 VIN1-A CH1 input AMP_inverted input 2 VIN1+A CH1 input AMP_non -inverted input 3 VCCP1 CH1 and CH2 power stage power supply 4 VO1+ Output pin(+ )for channel 1 5 VO1- CH1 output pin (-) for channel 1 6 VO2+ Output pin(+ )for channel 2 7 VO2- Output pin(-)for channel 2 8 VO3+ Output pin(+ )fo[...]

  • Page 12

    1-42 (No.49793) 4.10 M61508FP (IC400) : E.volume • Pin layout & Block diagram 18 VDD OUT 1 D ATA GND NonFadaer OUT 1 FRONT OUT 1 REAR OUT1 F ADER IN 1 TONE OUT 1 TIMER DETECTOR NON F ADER VOLUME VOL IN 1 SEL OUT 1 DEFN OUT 1 IND 1 INC 1 INB 1 INA 1 DEFN IN 1 DEFP IN 1 REF VOL IN 2 SEL OUT 2 DEFN OUT 2 IND 2 INC 2 INB 2 INA 2 DEFN IN 2 DEFP IN[...]

  • Page 13

    (No.49793)1-43 • Pin functi on Pin No. Symbol Function 1 REF IC signal G ND 2 DEFP IN 1 Ope amp positive input 3 DEFN IN 1 Ope amp negative i nput 4 INA 1 Input selector ch1 input terminal 5 INB 1 Input selector ch1 input terminal 6 INC 1 Input se lector ch1 input terminal 7 IND 1 Input se lector ch1 input terminal 8 DEFN OUT 1 Operation outoutte[...]

  • Page 14

    1-44 (No.49793) 4.11 LC75878W (IC601) : LCD driver • Pin layout • Block diagram • Pin function 1 ~ 25 75 ~ 51 26 ~ 50 100 ~ 76 No. Symbol I/O Function 1~73 SEG1~SEG73 O Segment driver output pin. 74 SEG74 O Segment driver outp ut pin. 75 SEG75 O S egment driver output pin. 76~83 COM8~COM1 O Common driver output pin. 84~87 P1~P4 O General -pur[...]

  • Page 15

    (No.49793)1-45 4.12 NJM4565V-X (IC1572) : Dual ope amp • Terminal layout & Pin function 4.13 NJU7241F25 (IC1651) : Regulator • Pin Layout • Block Diagram 4.14 NJU7241F33 (IC1504) : Voltage regulator A - + B - + 8 7 6 5 1 2 3 4 1 2 3 4 5 6 7 8 AOUTPUT A-INPUT A+INPUT V B+INPUT B-INPUT B OUTPUT V GND 1 VIN 2 VOUT 3 5 STB 4 NC Short protect [...]

  • Page 16

    1-46 (No.49793) 4.15 TA2157FN-X (IC1601):RF amp • Terminal la yout • Block diagram 24 ~ 13 1 ~ 12 12 11 10 9 8 7 6 5 4 3 2 1 13 14 15 16 17 18 19 20 21 22 23 24 20k 20k 15k 20k 20k 3k 180k 240k 240k 15pF 15pF 40pF 40pF 10pF 60k 60k 22k 22k 94k 94k 14k 50k 20k 20k 20k 40k 50k PEAK 15k 40k 2k 1.75k 1.3V 2k 1k 180k 3k 12k 12k 20k 40k 30k 10pF 50 A[...]

  • Page 17

    (No.49793)1-47 • Pin functi on Pin No. Symbol I/O Function 1 VCC - 3.3V power supply pin 2 FNI I Main-beam amp i nput pin 3 FPI I Mai n-beam amp input pin 4 TPI I Sub-be am amp input pin 5 TNI I Sub-beam amp i nput pin 6 MDI I Monitor photo diode amp input pin 7 LDO O Laser diode amp ou tput pin 8 SEL I APC circuit ON/OFF control signal, laser di[...]

  • Page 18

    1-48 (No.49793) 4.16 TC94A14FA (IC1621) : DSP & DAC • Terminal la yout & block daiagram • Pin function LPF 1-bit DAC Clock generator Micro- controller interface Audio out circuit Digital output Address circuit Correction circuit 16 k RAM CL V servo Digital equalizer automatic adjustment circuit Servo control A/D D/A PWM Synchronous guar[...]

  • Page 19

    (No.49793)1-49 17 TMAX O TMAX detection result output pin. 18 L PFN I I nverted input pin for PLL LPF amp. 19 LPF O O Output pin for PLL LPF amp. 20 PVREF - PLL-only VREF pin. 21 VCOF O VCO filter pin. 22 AV SS3 - Analog GND pi n. 23 SLCO O D AC output pin for data sl ice level generation. 24 RFI I RF signal input pin. Zin selectab le by command. 2[...]

  • Page 20

    1-50 (No.49793) 4.17 TC94A20F-011 (IC1652) : DAC/SRAM built in type D- ROM decoder+ MP3 decoder • Pin layout • Block diagram 48 33 32 17 49 64 11 6 32 31 30 29 28 27 26 25 33 34 35 36 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 DIT DAC DAC Bus[...]

  • Page 21

    (No.49793)1-51 • Pin functions Pin No Symbol I/O Functions 1 /RESET I Hard reset input H:normal L:reset 2 MiMD I Micon I/F mode select input 3 /MiCS I Micon I/F chip select input 4 /MiLP I Mico n I/F latch palus input 5 MiDio I/O Mico n I/F data input/output 6 / MiCK I Micon I/F clock input 7 MiACK O Micon I/F acknowledge output 8 VDDT - Power su[...]

  • Page 22

    1-52 (No.49793) 4.18 UPD784217AGC208 (IC962) : Main micon • Pin Layout • Pin functions 1 ~ 25 75 ~ 51 100 ~ 76 26 ~ 50 Pin No Symbol I/O Function 1N C - N o t u s e 2N C - N o t u s e 3N C - N o t u s e 4N C - N o t u s e 5N C - N o t u s e 6N C - N o t u s e 7 DIM_OUT O DIMMER pulse control output 8 I LLUM1 O POWER ON:H,FLAT PANEL:L 9V D D - 5[...]

  • Page 23

    (No.49793)1-53 41 LCD_DA O Data output to LCD driver 42 LCD_SCK O Clock output to LCD driver 43 LCD-CE1 O Chip enable output 1 to LCD driver 44 BU ZZER O Buzze r output 45 1 2C_DAI I 12C commu nication data input 46 12C_DAO O 12C communication data output 47 12C-CLK O 12C communicatio n clock output 48 BUS-I/O O J-BUSI/O signal terminal 49 TMO O Tr[...]

  • Page 24

    1-54 (No.49793) 4.19 UPD784225GK-629 (IC1501) : CPU • Pin layout • Pin function 60 ~ 41 1 ~ 20 40 ~ 21 61 ~ 80 Pin No. Symbol I/O Function 1 TEMP IN I T emp. detection input termi nal 2,3 - - No use 4 AVSS - GND 5 ADCONT O Output H level during power on. During stop mode:L 6- - - 7 AVREF1 - 3.3V 8 EPROMDI I EEPROM data input terminal 9 EPROMDO [...]

  • Page 25

    (No.49793)1-55 39 MP3 RESET O CD MP3 reset signal outp ut terminal 40 MP3 STB O CD MP3 standby signal outpu t terminal (H:Standby) 41~43 - - - 44 DAC ML O DAC mode control latch o utput terminal 45 DAC MC O DAC mode control BCK output terminal 46 DAC MD O DAC mode control data output te rminal 47 DAC CS O DAC chip select output terminal 48~51 - - N[...]

  • Page 26

    1-56 (No.49793) 4.20 PCM1716E-X (IC1571) : D/A converter • Pin layout • Block diagram • Pin function 11 4 28 15 BCK V outL Vcc2L Vcc2R AGND2L AGND2R EXTL EXTR ZER O V outR Serial Input 8X Oversampling Digital Filter with Function Controller SCK Crystal OSC XTI XTO CLKO Vcc1 Vcc AGND1 DGND Power Supply Open drain Low-pass Filter Low-pass Filte[...]

  • Page 27

    KD-LX555R 2-1 1 2 3 4 5 ABC D EF G H REST REST SWITCH LOAD/FEED+ LOAD/FEED- LOAD/FEED MO TOR SPINDLE+ SPINDLE- SPINDLE M OTO R SW1 SW2 SW1 SW2 FOCUS+ FOCUS- TRACKING+ TRACKING- A,B,E,F MD ,LD PICKUP CN1601 CN501 CN1501 CN771 CN840 CN702 J1 IC1601 CDRF RWS E L IOP IC1652 MP3 DECODER IC1571 D/A CONVER TER IC1572 CDLPF A0 to A16 WF ,OF ,CS1 I/O1 to I/[...]

  • Page 28

    KD-LX555R 2-2 KD-LX555R 1 2 3 4 5 ABC D EF G H P ar ts are saf ety assurance parts. When replacing those par ts make sure to use the specified one. TUNER SIGNAL CD SIGNAL T APE SIGNAL A UX IN SIGNAL MAIN SIGNAL GND1 AM _ ANT AM _ VCC FM _ VCC FM _ ANT GND6 PLL _ VSS CF _ BW _ MONITOR LPF _ VCC L R SD/ST _ IND PLL _ VDD CE DI CL DO MRC _ SENSOR FM/A[...]

  • Page 29

    KD-LX555R 2-3 1 2 3 4 5 ABC D EF G H CD SIGNAL TP20 TP21 TP22 TP23 TP24 TP26 TP25 A VCC F GND E VREF B VR MD LD FOCUS- FOCUS+ TRACKING+ TRACKING- SPINDLE+ SPINDLE- REST SW2 SW1 GND LOAD/FEED+ LOAD/FEED- CN1601 TP34 TP35 TP36 TP37 TP38 TP40 TP41 TP39 C[1] C[2] C[3] C[4] C[5] C[6] B[3] B[4] B[5] C[7] C[8] B[2] TP29 TP28 TP27 TP30 TP31 TP32 TP33 R1615[...]

  • Page 30

    KD-LX555R 2-4 KD-LX555R 1 2 3 4 5 ABC D EF G H 1 1 12 # 3 1 S 8 S 7 S 6 S 5 S 4 S 3 S 2 S 1 S74 S73 S72 S71 S69 S68 S67 S66 S65 S64 S63 S62 S61 S60 S59 COM1 COM8 COM7 COM6 COM5 COM4 COM3 COM2 P 1 P 2 P 3 P 4 VDD VLCD VLCD0 VLCD1 VLCD2 VLCD3 VLCD4 VSS OSC CE CL DI IN H COM8 COM7 COM6 COM5 COM4 COM3 COM2 COM1 8 7 6 5 4 3 2 1 74 73 72 71 69 68 67 66 6[...]

  • Page 31

    KD-LX555R 3-6 Electrical p art s list Main board Block No. [0][1][0][0]  Symbol No. Part No. Part Name Description Local IC51 000874740-T I C BU1923F IC400 000974840-T I C M61508FP IC702 000974280-T I C PST3433ML IC703 000874700-T I C BR24C32F IC771 000774040-T I C HD74HC126FP IC830 000974870 IC BA6956AN IC831 000974870 IC BA6956AN IC941 0010742[...]

  • Page 32

    KD-LX555R 3-7 C713 CE2271468 E CAP ACITOR 220MF/ 10V C719 CZ2216D2J C CAP ACITOR 220PF C720 CY473623J C CAP ACITOR 0.047MF C721 CY222623J C CAP ACITOR 0.0022MF C722 CY222623J C CAP ACITOR 0.0022MF C723 CZ1016D2J C CAP ACITOR 100PF C724 CY222623J C CAP ACITOR 0.0022MF C750 CY474122J C CAP ACITOR 0.47MF C757 CY104623J C CAP ACITOR 0.1MF C771 CY473623[...]

  • Page 33

    KD-LX555R 3-8 Front board Block No. [0][2][0][0] R727 RK103JA0J C RESISTOR 1/10W 10K R728 RK222JA0J C RESISTOR 1/10W 2. 2K R731 RK473JA0J C RESISTOR 1/10W 47K R732 RK473JA0J C RESISTOR 1/10W 47K R733 RK473JA0J C RESISTOR 1/10W 47K R734 RK473JA0J C RESISTOR 1/10W 47K R735 RK473JA0J C RESISTOR 1/10W 47K R736 RK102JA0J C RESISTOR 1/10W 1K R737 RK103JA[...]

  • Page 34

    KD-LX555R 3-9 CD board Block No. [0][3][0][0] C607 CY104423J C CAP ACITOR 0.1MF C608 CY104423J C CAP ACITOR 0.1MF C609 CZ6816D2J C CAP ACITOR 680 PF C610 CY475316J C CAP ACITOR 4.7 MF F Z C61 1 CY475316J C CAP ACITOR 4.7 MF F Z C612 CQ393328J C CAP ACITOR 0.039 MF C613 CY180J90J C CAP ACITOR 18PF 3.15KV SL C614 CY104423J C CAP ACITOR 0.1MF C615 CY5[...]

  • Page 35

    KD-LX555R 3-10 C1577 CY104623J C CAP ACITOR 0.1 MF C1578 CX476012L E CAP ACITOR 47MF/6.3V C1579 CX106312L E CAP ACITOR 10MF/16V C1580 CY104623J C CAP ACITOR 0.1 MF C1581 CZ1016D2J C CAP ACITOR 100PF C1582 CZ1016D2J C CAP ACITOR 100PF C1583 CZ8216D2J C CAP ACITOR 820PF C1584 CZ8216D2J C CAP ACITOR 820PF C1585 CX475512L E CAP ACITOR 4.7MF/35V C1586 C[...]

  • Page 36

    KD-LX555R 3-11 R1584 RK123JA0J C RESISTO R 1/10W12K R1585 RK303JA0J COMP .RESISTOR 1/10W30K R1586 RK303JA0J COMP .RESISTOR 1/10W30K R1587 RK473JA0J C RESISTO R 1/10W47K R1588 RK473JA0J C RESISTO R 1/10W47K R1589 RK103JA0J C RESISTO R 1/10W10K R1590 RK103JA0J C RESISTO R 1/10W10K R1591 RK103JA0J C RESISTO R 1/10W10K R1592 RK103JA0J C RESISTO R 1/10W[...]