SERVICE MANUAL CD RECEIVER 49793 4 2003 KD-LX555R S KD-LX555R S T D M 7 8 9 10 11 12 SOURCE Area Suffix E ------ Continental Europe TABLE OF CONTENTS 1 2 3 4 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Adjustment. . .
SECTION 4 Description of major ICs 4.1 BA6956AN (IC830, IC831) : Reversible motor driver • Block diagram TSD 1 2 3 4 5 6 7 8 9 VREF OUT2 RNF OUT1 VM Vcc FIN GND RIN CONTROL LOGIC • Pin function • Truth table Pin No.
4.2 BR24C01AFV-W-X (IC1502) : EEPROM • Pin layout Vcc WP SCL SDA A0 A1 A2 GND • Block diagram A0 1 1kbit EEPROM ARRAY 2 A2 3 ADDRESS DECODER Vcc 7 WP 6 SCL 5 SDA 8bit 7bit A1 8 7bit SLAVE/WORD DATA ADDRESS REGISTER REGISTER START STOP CONTROL LOGIC ACK GND 4 • Pin function Pin name I/O Vcc - HIGH VOLTAGE GEN.
.3 BR24C32F (IC703) : EEPROM • Pin Layout VCC WP SCL • Pin layout & Block diagram SDA PIN NAME I/O VCC - Power Supply BR24C32/F GND - Ground (0V) A0-A2 I Slave Address Set SCL I Serial Clock Input SDA I/O Slave and Word Address.
4.5 BU1923F (IC51) : RDS decoder • Pin layout QUAL RDATA Vref MUX VDD1 VSS1 VSS3 CMP 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 RCLK N.C. XO XI VDD2 VSS2 T1 T2 • Block diagram MUX VSS3 CMP 7 8 100k 4 120k - 100k 8th Switched capacitor filter + Vref 3 VDD1 5 VSS1 6 VDD2 12 VSS2 11 comparator anti-aliasing filter 16 RCLK 1 QUAL 2 RDATA Analog Power supply Digital Power supply PLL 57kHz RDS/ARI PLL 1187.
4.6 HA13164A (IC961) : Regulator • Terminal layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 • Block diagram +B C1 100u C2 0.1u ACC VCC 8 3 ACC BATT.DET OUT 9 ANT OUT 2 Surge Protector C3 0.1u EXT OUT 1 BIAS 6 TSD COMPOUT C4 0.1u 4 ANT CTRL VDD OUT 7 CTRL C7 0.1u 11 CD OUT 5 SW5VOUT 12 C5 0.1u AUDIO OUT ILMOUT 10 14 C8 0.1u C6 10u 15 GND 13 TAB GND R1 ILM AJ UNIT R: C:F note1) TAB (header of IC) connected to GND • Pin function Pin No.
4.7 HD74HCT126T-X : (IC1500,IC1503) Buffer • Pin arrangement • Pin function Input 1C 1 14 Vcc 1A 2 13 4C 1Y 3 12 4A 2C 4 11 4Y 2A 5 10 3C 2Y 6 9 3A GND 7 8 3Y Output C A Y L X Z H L L H H H H : High level L : Low level X : Irrelevant Z : Off (Hhigh-impedance)state of a 3-stage output • Block diagram 1A 1Y 1C 2A 2Y 2C 3A 3Y 3C 4A 4Y 4C (No.
4.8 LA47505 (IC941) : Power amp. • Terminal layout 6 20 9 11 7 1 Protective circuit 8 5 12 3 2 4 Stand by Switch 10 Ripple Filter Mute circuit 22 17 15 19 25 protective circuit 18 13 21 14 16 1-38 (No.
OUTFR+ Vcc1/2 OUTRRGND2 OUTRR+ VREF INRR INFR SGND INFL INRL ONTIME OUTRL+ GND3 OUTRLVcc3/4 OUTFL+ MUTE OUTFLGND4 NC OUTFRSTBY AC CONT1 GND1 • Terminal layout • Pin function Pin No.
4.9 LA6579H-X (IC1681) : 4-Channel bridge driver • Pin layout & Block diagram [H] VIN1-A 1 VIN1_SW [H]: OP-AMP_A [L]: OP-AMP_B + VIN1+A 28 VIN1 27 VIN1-B 26 VIN1+B 25 S-GND 24 VIN1-SW 23 MUTE 22 VREFIN FR FR 21 VCCS 20 3.3VREG 19 REGIN 18 VIN2G 17 VIN2 16 VIN3G 15 VIN3 [L] 2 + VCCP1 3 VO+ 4 33k Level shift VO- 5 + Signal system power supply 11k All outputs ON/OFF 7 FR FR VO3- 9 VO4+ 10 VO4- 11 Signal system power supply 3.
• Pin function Pin No.
4.10 M61508FP (IC400) : E.volume • Pin layout & Block diagram VDD OUT 2 19 18 VDD OUT 1 CLOCK 20 17 DATA I/F TIMER DETECTOR SOFT SELECT VDD 21 VDD NonFadaer OUT 2 22 NON FADER VOLUME 16 GND GND 15 NonFadaer OUT 1 NON FADER VOLUME FRONT OUT 2 23 14 FRONT OUT 1 REAR OUT2 24 13 REAR OUT1 VOLUME 2 + - - + FADER IN 2 25 12 FADER IN 1 A B LOUDNESS + 3BAND TONE CONTROL (BASS/MID/ TREBLE) + DEFN OUT 2 29 INB 2 32 INA 2 33 + - - + + 50K 50K 50K 50K 50K 50K 50K 25.
• Pin function Pin No.
4.11 LC75878W (IC601) : LCD driver • Pin layout 100 ~ 76 1 75 ~ ~ 25 51 26 ~ 50 GENERAL PORT OSC COMMON DRIVER S1 S75/COM9 S74/COM10 S73 COM8 COM1 P4 P1 • Block diagram SEGMENT DRIVER & LATCH CONTROL REGISTER CLOCK GENERATOR VLCD CONTRAST ADJUSTER SHIFT REGISTER VLCD0 VLCD1 CCB INTERFACE VLCD2 VLCD3 • Pin function No.
4.12 NJM4565V-X (IC1572) : Dual ope amp • Terminal layout & Pin function 8 1 A 2 - 7 + B 3 - + 6 1 2 3 4 5 6 7 8 AOUTPUT A-INPUT A+INPUT V B+INPUT B-INPUT B OUTPUT V 5 4 4.13 NJU7241F25 (IC1651) : Regulator • Pin Layout • Block Diagram Short protect GND 1 5 STB 3 VOUT VIN 2 VIN 2 VOUT 3 4 NC STB 5 Vref GND 1 1 GND 4.14 NJU7241F33 (IC1504) : Voltage regulator 1 5 2 3 PIN FUNCTION 1. GND 2. VIN 3. VOUT 4. NC 5. STB 4 (No.
4.15 TA2157FN-X (IC1601):RF amp • Terminal layout 24 ~ 13 1 ~ 12 • Block diagram 13 20k PEAK 20k 12 50k 15k 14 11 10pF 40k 20k 15 20k 20k 10 40k 10pF 15k 16 20k 9 50 A 12k 2k 50k 8 1.3V 17 12k 20k 1k BOTTOM PEAK 18 40k 14k 19 1.75k 240k 7 2k 6 15pF 20 x0.5 K x2 5 x0.
• Pin function Pin No. Symbol I/O 1 VCC - 3.3V power supply pin Function 2 FNI I Main-beam amp input pin 3 FPI I Main-beam amp input pin 4 TPI I Sub-beam amp input pin 5 TNI I Sub-beam amp input pin 6 MDI I Monitor photo diode amp input pin 7 LDO O Laser diode amp output pin 8 SEL I APC circuit ON/OFF control signal, laser diode (LDO) control signal input or bottom/peak detection frequency change pin.
4.
Pin Symbol I/O No 17 TMAX O TMAX detection result output pin. Descroption TMAX Detection Result Longer than fixed period Within fixed period Shorter than fixed period 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 LPFN LPFO PVREF VCOF AVSS3 SLCO RFI AVDD3 RFCT RFZI RFRP FEI SBAD TEI TEZI FOO TRO VREF RFGC TEBC SEL I O O O I I I I I I I I O O O O O TMAX Output "PVDD3" "HiZ" "AVSS3" Inverted input pin for PLL LPF amp. Output pin for PLL LPF amp. PLL-only VREF pin. VCO filter pin.
46 47 49 1-50 (No.49793) 48 50 51 52 53 General inputbport 54 55 56 44 57 58 VCO 59 Microcom. I/F 21 60 20 61 Audio I/F round & limit 22 round & limit 23 Instruction decoder DAC A3 24 A2 ALU AY 25 A1 AX DIT 26 MAC MZ 35 27 MY 28 A0 MX C-Pointer register 29 Program control 38 Y-Pointer register 34 30 register X0 X1 X2 Y0 Y1 Y2 39 X-Pointer register 37 Address calc.
• Pin functions Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24,25 26 27 28 29 30 31~34 35 36~38 39 40 41 42 43,44 45 46,47 48 49,50 51 52 53 54 55 56 57 58 59 60 61 62,63 64 Symbol /RESET MiMD /MiCS /MiLP MiDio /MiCK MiACK VDDT SDo BCKo LRCKo SDiO BCKiA LRCKiA SDiL BCKiB LRCKiB VDD STANBY VSS VSSL VRAL LO VDAL,VDAR RO VRAR VSSR TESTP TXO Po0~Po3 VDDT Po4~Po6 REQ VSS IRO VDDM Fi0,Fi1 VSSM Pi0,Pi1 VSS Pi2,Pi3 Pi4/CLCL VDD Pi5/DATA TSTiN/SFSY Fi2/SBSY VSSP Pdo Vcoi VDDP CKo/CKi VDDX Xi,
4.18 UPD784217AGC208 (IC962) : Main micon • Pin Layout 1 100 ~ 76 75 ~ 25 ~ 51 26 ~ 50 • Pin functions Pin No Symbol I/O Function 1 NC - Not use 2 NC - Not use 3 NC - Not use 4 NC - Not use 5 NC - Not use 6 NC - Not use 7 DIM_OUT O DIMMER pulse control output 8 ILLUM1 O POWER ON:H,FLAT PANEL:L 9 VDD - 5V 10 X2 - 11 X1 - 12 VSS - 13 XT2 - 14 XT1 - 15 RESET I Reset detection teaminal 16 CD_P.
Pin No Symbol I/O Function 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 BUZZER O Buzzer output 45 12C_DAI I 12C communication data input 46 12C_DAO O 12C communication data output 47 12C-CLK O 12C communication clock output 48 BUS-I/O O J-BUSI/O signal terminal 49 TMO O Tray motor negative signal output terminal 50 TM1 O Tray motor positive signal output terminal 51 DMO O Motor
4.19 UPD784225GK-629 (IC1501) : CPU • Pin layout 61 60 ~ 41 ~ 80 40 ~ 1 ~ 20 21 • Pin function Pin No. Symbol I/O 1 TEMP IN I Temp. detection input terminal Function 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 O EEPROM data output terminal.
Pin No.
4.20 PCM1716E-X (IC1571) : D/A converter • Pin layout 28 15 1 14 Vcc2L AGND2L Vcc2R AGND2R • Block diagram BCK Serial LBCK Input DATA I/F 8X Oversampling EXTL Delta-Sigma Digital Filter Modulator with ML/llS MC/DM1 MD/DM0 CS/WO MODE MUTE RST Low-pass Filter DAC VoutR EXTR Function Controller Mode ZERO Control BPZ-Cont SCK I/F XTI Symbol I/O Open drain Crystal OSC • Pin function Pin No.
KD-LX555R Block diagram BCK,LRCK,AOUT SW1 IC1621 D.SERVO DSP 4 PICKUP FOCUS+ FOCUSTRACKING+ TRACKINGA,B,E,F MD,LD FOCUS+ FOCUSTRACKING+ TRACKINGSPINDLE+ SPINDLELOAD/FEED+ LOAD/FEED- /RESET MIDIO /MCLK REQ DATA BUSO to BUS3 BUCK,CCF DSPRESET CLOCK SW2 TRO VREF FOO FMO CMO RST DACMI DACMC DACMD DACCS IC1501 CPU IC1502 EEPROM IC1681 CD DRIVER 3 P.DET CD_MUTE CD_P.
A 1 2 3 IC831 4 5 6 BA6956AN 7 8 9 B X702 12.5MHz 32.768KHz MOTOR[5] C 3 2 IC702 1 4 Q830 DTA114EUA 2-2 D GND R840 1K MOTOR[6] E J.BUS BUFFER 9 6 HD74HC126FP 0 CDCH[2] CDCH[1] R752 SI/SO SCK REMOTE CH_Lch GND CH_Rch VCC GND GND GND GND GND GND H-REMOCON F R979 9.1K 1K 1/4W CN901 R962 C942 27K RF 47/16 P_GND C943 VCC 0.01 2012 STBY P_GND R985 4.7K 7 AMP[1-4] R373 R474 C472 C371 AC_CONT2 C947 OUT_FLSP[6] OUT_FL+ SP[5] 0.
KD-LX555R CD servo control section L[4] L[2] R1589 10K 10K 10K 47/6.3 R1591 C1592 47/6.3 R1592 47K INN1 OUT1 10K C1591 R1590 47/16 C1593 N[3] Q1571 DTA114EUA R1565 R1564 NM NM R1566 NM 4.
KD-LX555R KD-LX555R LCD & Key control section S631 123456 390 CN631 KEY0 KEY1 GND GND GND SML310LT SML310LT 390 R644 D646 D647 SML310LT SML310LT 390 R631 D637 D638 SML310LT SML310LT 390 R645 D648 D649 390 R632 D638 SML310LT SML310LT C632 10V 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 4 D643 DISP R636 4 / INT D644 5 / RPT D645 50 SML310LT SML310LT 45 270 40 R646 35 27
KD-LX555R Electrical parts list Main board Symbol No. Part No.
KD-LX555R Symbol No. Part No.
KD-LX555R Symbol No. Part No.
KD-LX555R Symbol No. Part No. Part Name Description C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 C617 C623 C661 C662 CY104423J CY104423J CZ6816D2J CY475316J CY475316J CQ393328J CY180J90J CY104423J CY562623J CY475316J CY475316J CY475316J CY102623J CY102623J C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR C CAPACITOR 0.1MF 0.1MF 680 PF 4.7 MF F Z 4.7 MF F Z 0.039 MF 18PF 3.15KV SL 0.
KD-LX555R Symbol No. C1577 C1578 C1579 C1580 C1581 C1582 C1583 C1584 C1585 C1586 C1587 C1588 C1589 C1590 C1591 C1592 C1593 C1594 C1595 C1596 C1597 C1598 C1601 C1602 C1603 C1604 C1605 C1606 C1607 C1608 C1609 C1610 C1611 C1612 C1613 C1614 C1615 C1621 C1622 C1623 C1624 C1625 C1626 C1627 C1628 C1629 C1630 C1631 C1632 C1633 C1634 C1635 C1636 C1637 C1638 C1639 C1640 C1641 C1642 C1643 C1644 C1645 C1646 C1648 C1651 C1652 C1653 C1654 C1655 C1656 C1657 C1658 C1659 C1660 C1661 C1662 C1663 3-10 Part No.
KD-LX555R Symbol No. R1584 R1585 R1586 R1587 R1588 R1589 R1590 R1591 R1592 R1593 R1601 R1602 R1603 R1604 R1605 R1606 R1607 R1608 R1609 R1610 R1611 R1612 R1613 R1614 R1615 R1616 R1621 R1622 R1623 R1624 R1625 R1626 R1627 R1628 R1629 R1630 R1631 R1632 R1633 R1634 R1635 R1636 R1637 R1638 R1639 R1640 R1641 R1642 R1651 R1652 R1653 R1654 R1655 R1656 R1657 R1658 R1659 R1660 R1661 R1663 R1664 R1666 R1667 R1668 R1669 R1670 R1671 R1672 R1673 R1674 R1675 R1677 R1679 R1680 R1681 R1682 R1683 Part No.
