Download Print this page

Advertisement

DVD RECORDER
SERVICE MANUAL
MODEL : DR165/DR175/DR676X
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.

Advertisement

Chapters

Troubleshooting

   Also See for LG DR165

   Related Manuals for LG DR165

   Summary of Contents for LG DR165

  • Page 1: Dvd Recorder

    DVD RECORDER SERVICE MANUAL MODEL : DR165/DR175/DR676X CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL.

  • Page 2

    CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..RS-01A LOADER PART SECTION 5 ..REPLACEMENT PARTS LIST...

  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ....1-2 SERVICING PRECAUTIONS ....................1-3 • General Servicing Precautions • Insulation Checking Prodedure • Electrostatically Sensitive Devices SERVICE INFORMATION FOR EEPROM IC SETTING ..........1-4 FLASH UPGRADE ........................1-5 LOADER UPGRADE ........................

  • Page 4: Product Safety Servicing Guidelines For Video Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Electronics Corporation. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.

  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION : Before servicing the DVD Recorder covered by Electrostatically Sensitive (ES) Devices this service data and its supplements and addends, read and Some semiconductor (solid state) devices can be damaged follow the SAFETY PRECAUTIONS. NOTE : if unforeseen easily by static electricity.

  • Page 6: Service Information For Eeprom Ic Setting

    SERVICE INFORMATION FOR EEPROM IC SETTING MICOM START OPTION CONFIRMATION MODE DETECT NEW EEPROM (OPTION EDIT SCREEN) EEPROM ID CHECK Press the "CLEAR" key on the NAME BINARY 2 BYTE(B3,248,249) Remote controller and the OPT1 00000000 "PROG. - " key one the Front Panel OPT2 00000000 the same time, then it goes in to...

  • Page 7: Flash Upgrade

    FLASH UPGRADE 1. MAKING UPGRADE DISC 1) Do Physical format as ISO9660 or JOLIET file system. 2) Don’t care about the CD Volume label. 3) Write DR100 BE Upgrade File on Root. * OPTIONAL PARTS • DR100 8601 64M NTSC) : LG_DR100_8601NT64_UPDATE.590 •...

  • Page 8

    4) You can see both current and upgrade version. Press REC KEY. 5) Upgrading. 6) After Upgrading, you can see the below screen. And automatically open tray. Eject the Disc. Reboot the set.

  • Page 9: Loader Upgrade

    LOADER UPGRADE 1.MAKING UPGRADE DISC 1) Do Physical format as ISO9660 or JOLIET file system 2) Make a Volume label as “DRIVE_UP”. 3) Write DvdSLXX.rs1, YASMSLXX.BIN on Root like below.(XX is Version) < example- Nero Burning Rom > 2. LOADER UPGRADE 1) Put Loader Upgrade Disc on Set.

  • Page 10

    4) After Tray open, pick the disc up and close the tray. 5) It shows both the current version and upgrade version. Press REC KEY. 6) Upgrading. 7) After finishing Upgrade, it shows the below screen and is tuned off...

  • Page 11: Specifications

    SPECIFICATIONS • GENERAL Power requirements AC 200-240V, 50/60 Hz Power consumption Dimensions (approx.) 430 X 54 X 275 mm (w x h x d) without foot Mass (approx.) 4.1 kg Operating temperature 5°C to 35°C Operating humidity 5 % to 90 % Television system PAL I, B/G, I/I, SECAM D/K, K1, SECAM L color system Recording format...

  • Page 12

    SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ........................2-2 1. Cabinet and Main Frame Section ..................2-2 2. Deck Mechanism Section(RS-01A) ..................2-3 3. Packing Accessory Section ....................2-4...

  • Page 13: Exploded Views

    EXPLODED VIEWS 1. Cabinet and Main Frame Section NOTES) THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

  • Page 14: Deck Mechanism Section(rs-01a)

    2. DECK MECHANISM SECTION(RS-01A)

  • Page 15: Packing Accessory Section

    3. Packing Accessory Section 810 CABLE ASS'Y 821 SCART CABLE Cable, Coaxial Plug Ass'y, 1Way 808 Battery Plug Ass'y, 1Way Remote Control Plug Ass'y, 2Way Instruction Ass'y FLAT CABLE Packing Packing 832 DISC OPTIONAL PARTS...

  • Page 16

    SECTION 3 ELECTRICAL CONTENTS VDR PART ELECTRICAL TROUBLESHOOTING GUIDE...................3-2 1. POWER SUPPLY ON SMPS BOARD ..................3-2 2. POWER SUPPLY ON I/O BOARD....................3-4 3. SYSTEM CIRCUIT PART......................3-11 4. DISC NOT RECOGNIZED ......................3-11 5. WHEN PLAYING DISC, NO AUDIO OUTPUT................3-12 6. NO OPTICAL / DIGITAL OUTPUT ....................3-13 7.

  • Page 17: Vdr Part

    VDR PART ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER SUPPLY ON SMPS BOARD No .5.3VA Replace the F101 Is the F101 Normal? Is the D127 Normal? Replace the D127 (Use the same Fuse) Is the BD101 Power Line of I/O Replace the BD101 Normal? PCB is short Is the R101 Normal?

  • Page 18

    No 12V Is the Vcc(14.0V) supplied to IC131 pin 1? Check or Replace the D127 Check the PWR CTL “H” signal Is the IC131 pin4 ‘H’? from µ-com Check or Replace the IC131 No 5V Is the Vcc(5.5V) supplied to IC132 pin 1? Check or Replace the D125 Check the PWR CTL “H”...

  • Page 19: Power Supply On I/o Board

    2. POWER SUPPLY ON I/O BOARD No 12V Is the VCC (14V) supplied to Q164 Check D124 on SMPS Board and Collector? Replace Is there about 12.5V at ZD151 & Q164 Check Q164 and Replace Base ? Is the VCC (33V) supplied to Q162 Check D126 on SMPS Board and Emitor ? Replace...

  • Page 20

    No 5.2V Is the VCC (5.3V) supplied to Q151 Check 5.3VA on SMPS Board Emitor ? Is there about 0V at D153 and Q156 Check Q151 and Replace Collector ? Is there about 5V at R171 and 0.7V at Check the ‘PWR CTL H’ signal from Q156 Base ? µ-COM Check Q156 and Replace...

  • Page 21

    No 33VT Is the VCC (33V) supplied to Q161 Check D126 on SMPS Board and Replace Emitor ? Is there about 0V at Q152 Collector ? Check Q161 and Replace Is there about 5V at R180 and 0.7V at Check the ‘TIMER H’ signal Q152 Base? from µ-COM Check Q152 and Replace...

  • Page 22

    No 3.3V Is there about 3.8V at the IC152 pin 1? Check D127 on SMPS Board and Replace Is there about 4V ~ 5V at the IC152 Check the ‘PWR CTL H’ signal from pin 4? µ-COM Check the IC152 and Replace No 2.5V Is there about 3V ~ 3.8V at the IC151 Check D154 and D127 on SMPS Board...

  • Page 23

    No SW_5.3VA Is the VCC (5.3V) supplied to Q158 Check 5.3VA on SMPS Board Emitor? Is there about 0V at R179 and R156 ? Check the ‘STANBY H’ signal from µ-COM Check Q158 and Replace No 1.8V(SAA7137) Is the VCC (3.3V) supplied to Q159 Check 3.3V power supply Emitor And IC154 pin 1, 2, 8 ? Is there about 3V ~ 3.3V at Q159 Base...

  • Page 24

    No SW_12VG Is the VCC (14V) supplied to Q165 Check D124 on SMPS Board and Replace Collector ? Is there about 12.5V at ZD152 & Q165 Check Q165 and Replace Base ? Is the VCC (33V) supplied to Q160 Check D126 on SMPS Board and Replace Emitor ? Is there about 0V at Q160 Base ? Check Q160 and Replace...

  • Page 25

    No 1.8V(Main Core Vcc) Check D155 and 2.5V power Is the VCC (2V) supplied to Q154 Emitor? supply Is there about 2V ~ 2.5V at Q154 Base Check Q159 and Replace and IC154 pin 4? Is the VCC (3.3V) supplied IC154 Check 3.3V power supply pin 1, 2, 8 ? Check IC154 and Replace...

  • Page 26: System Circuit Part

    3. SYSTEM CIRCUIT PART “HELLO” displayed Continue at Power On Check PVM02 pin 13 IC 701 pin 19 TP441, R1443 : HIGH (/RST_HOST) ? (R714) X1101 : Clock oscillated ? (13.5MHz) Replace X1101 IC1302 pin 26 : ( Flash Chip Select ) Check IC1201 (Flash Memory) &...

  • Page 27: When Playing Disc, No Audio Output

    5. WHEN PLAYING DISC, NO AUDIO OUTPUT CHECK IC808 pin 1,2,3,4: IC808 pin 15,18(Audio_out Pin 10 (Reset “H”) : IC1101 DEFECT R/L): Is there a signal? Pin 7,8 (I C) : CHECK Q801, IC808 pin 14,19 (Z_mute_R/L) : CHECK IC808 pin 17 Q802, Q803,Q805, IC701 pin 58 (A_mute_L) : (12V) pin 5,11,20 (3.3V)

  • Page 28: No Optical / Digital Output

    6. NO OPTICAL / DIGITAL OUTPUT R1122 : Is there a signal? CHECK PVM01 pin 1 (SPDIF_OUT) : R851 : C856 : Is there a signal? Is there a signal? BD817 : CHECK JK803 pin 2 (5.2V) Is there a signal? CHECK JK803 &...

  • Page 29: No Tuner Audio Output

    7. NO TUNER AUDIO OUTPUT TU701 pin 16 (SIF) : Is there a signal? C928,C963 : Is there a signal? IC903,904 pin 7 : CHECK IC903, 904 Is there a signal? pin 6 (12V) Only “P Model” IC803 pin 20, 24, 23, CHECK IC 803 pin 2,4 (VCC) : 12V Replace IC803 27 : Is there a signal?

  • Page 30: No External Audio Input

    8. NO EXTERNAL AUDIO INPUT CHECK Cable connec- CHECK Cable connec- tions & Input signal. tions & Input signal. < AV3 > < AV1/AV2 > < AV4 > C979, C980 IC803 pin 10, 16 : C976,C977 : Is there a signal? Is there a signal? Is there a signal? IC803 pin 20, 24, 23,...

  • Page 31: No Rgb / Component Video Signal When Play Disc

    9. NO RGB / COMPONENT VIDEO SIGNAL WHEN PLAY DISC L1408, L1427, L1428 :Is there a signal ? PVM01 pin 2,6,10 : Is there a signal ? IC802 pin 18,21,24 : Is there a signal ? CHECK IC802 pin 1,16 (5.2V) CHECK SW801 status &...

  • Page 32: No Composite / S-video Signal When Play Disc

    10. NO COMPOSITE / S-VIDEO SIGNAL WHEN PLAY DISC L1404, L1405, L1406 : Is there a signal ? PVM01 pin 14, 18, Replace the F101 22 : Is there a signal? (Use the same Fuse) IC802 pin 27, 30, 32 : CHECK Replace IC802 Is there a signal ?

  • Page 33: No Tv, External Input Video Signal

    11. NO TV, EXTERNAL INPUT VIDEO SIGNAL CHECK Cable con- CHECK Cable con- CHECK Cable con- nection & Input signal nection & Input signal nection & Input signal No video signal of external No video signal of external input When Cable connecting Tuner and Rear input AV3 (Rear RCA input) AV4 (Composite / S-Video) SCART1, 2 No TV video signal (AV1/2)

  • Page 34: No Dv(ieee 1394) Input (video/audio) Signal

    12. NO DV(IEEE 1394) INPUT (VIDEO/AUDIO) SIGNAL Check DV_Jack connection Change to DV-mode. DV-mode switching ? Using Remote Control IC1601 power 3.3V CHECK power 3.3V on I/O board IC1601 pin 37 : “High” CHECK RESET circuit & X401 (24.576MHz) oscillated ? IC1601 pin 15 : “High”...

  • Page 35: Block Diagrams

    BLOCK DIAGRAMS 1. SMPS BLOCK DIAGRAM T101 R101 RECTIFIER & TRANS BD101 TO Loader SMOOTING BLOCK (P1D01) (D127,C126,L123, 12V REG BLOCK C127,R128,C132) (IC131,C133,R130) SNUBBER BLOCK RECTIFIER & C103 (D101,C105 SMOOTING BLOCK 5V REG BLOCK C106,R104) (D125,D126,C125) (IC132,C134,R131) TO FAN (P104) DRIVE &...

  • Page 36: Main Power Block Diagram

    2. MAIN POWER BLOCK DIAGRAM 3.3V L1415 3V3D PLLVDD L1602 AVDD L1105 TSB41AB1 FLA SH 3V3D_PHY L1418 74LVT16373 74LVC1G125 L1416 L1417 3V3A 3V3D_E5 74LVC1G125 L1114 XTAL_VDD L1104 DAC_VDD L1109 USB_VDD DMN8601 DMN8602 L1105 REF_VDD 1.8V L1410 PLL_ VDD L1105 74HCT125 L1409 2.5V 2V5D_DDR...

  • Page 37: Video In Block Diagram

    3. VIDEO IN BLOCK DIAGRAM RF In AV4 In AV3 In JK807 JK806 JK802 Y / C CVBS CVBS MAIN I / O IC1101 DMN-8601 Digital Vi deo / DMN-8602 ITU.R-BT 656 IC901 Video Decoder VIN_D[2:9], MPEG Audio Processor VIN_CLK ENC/DEC SAA7137 ATAPI I/F...

  • Page 38: Video Out Block Diagram

    4. VIDEO OUT BLOCK DIAGRAM JK801 JK802 CVBS Y / Pb / Pr Y / C MAIN I / O IC1101 DMN-8601 IC802 CVBS Filter Video / DMN-8602 SW801 & 6dB Amp Y / G MPEG BH7868FS Pb / B ENC/DEC Pr / R CVBS , S-VIDEO...

  • Page 39: Audio In Block Diagram

    5. AUDIO IN BLOCK DIAGRAM RF In AV4 In AV3 In JK802 JK805 JK804 L / R IN L / R IN MAIN I / O Digital Audio IN MCLK F _ A R _ A L / R IN L / R IN IC1101 DMN-8601...

  • Page 40: Audio Out Block Diagram

    6. AUDIO OUT BLOCK DIAGRAM RF In AV4 In AV3 In JK802 JK805 JK804 L / R IN L / R IN MAIN I / O Digital Audio IN MCLK F _ A R _ A L / R IN L / R IN IC1101 DMN-8601...

  • Page 41: System Main Block Diagram

    7. SYSTEM MAIN BLOCK DIAGRAM IC1301 IC1302 HA[6:21] Ad dress /SYS_RST FLASH ROM Latch IC RESET HD[0:15] /RST_HOST Circuit IC701 SIO_SPI /FCS0, /OE2 CLK,CS0,MOSI MICOM /FLASH_WE E5_ALE /E5_RST SPI I/F SPI_CLK,CS0,MOSI Buffer SIO_SPI_MISO IC1101 SPI_MISO IC901 I2C ( SDA , SCL ) DMN-8601 SAA7137 /VDEC_IRQ...

  • Page 42: I/o µ-com Block Diagram

    8. I/O µ-COM BLOCK DIAGRAM SECAM_AM TU_L_OUT AV S/W IC903,904 IC_OUT_L TU_R_OUT A S/W IC_OUT_R IC803 NJM2521 MM1443 AV. DEC SMPS IC901 EEPROM POWER BOARD SAA7137 IC705 X702 X701 TUNER 24LC16B 14.31818MHz 32.768KHz TU701 I2C_DATA PWR_CTL_H I2C_CLK TIMER_H SMPS Block on I/O BOARD STANBY_H SIO_SPI_CLK...

  • Page 43: Scart Block Diagram(scart Model Only)

    9. SCART BLOCK DIAGRAM(SCART MODEL ONLY) DV (1394) Audio L/R TUNER CVBS TPA/TPB +/- A/V 1 SCART1 AV SWITCH MICOM CANAL+ TSB41AB1 A/V 2 T.Video MM1443 SCART2 T.Audio SW A/V D.Video A/V 3 Rear RCA R-656 PHILIPS SAA7137 VIDEO DECODER A/V 4 D.Audio AUDIO ADC / MSP...

  • Page 44: Circuit Diagrams

    2. Voltages are DC-measured with a digital voltmeter MODIFIED OR ALTERED WITHOUT PERMISSION IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. FROM THE LG ELECTRONICS CORPORATION. ALL PERFORMANCE IMPROVEMENT CHANGES INTO COMPONENTS SHOULD BE REPLACED ONLY WITH THE SET IS NOT DELAYED UNTIL THE NEW SERVICE TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR- LITERATURE IS PRINTED.

  • Page 45: Main Power Circuit Diagram

    2. MAIN POWER CIRCUIT DIAGRAM 3-40 3-41...

  • Page 46: Mpeg Circuit Diagram

    3. MPEG CIRCUIT DIAGRAM 3-42 3-43...

  • Page 47: A.latch/flash/ddr Circuit Diagram

    4. A.LATCH/FLASH/DDR CIRCUIT DIAGRAM 3-44 3-45...

  • Page 48: Loader/dv Circuit Diagram

    5. LOADER/DV CIRCUIT DIAGRAM 3-46 3-47...

  • Page 49: I/o µ-com Circuit Diagram

    6. I/O µ-COM CIRCUIT DIAGRAM 3-48 3-49...

  • Page 50: Tuner/mpx/adc/dac/jack Circuit Diagram

    7. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM 3-50 3-51...

  • Page 51: Decoder Circuit Diagram

    8. DECODER CIRCUIT DIAGRAM 3-52 3-53...

  • Page 52: Timer Circuit Diagram ( 6, 7 Tool Only )

    9. TIMER CIRCUIT DIAGRAM ( 6, 7 TOOL ONLY ) 3-54 3-55...

  • Page 53: Key Circuit Diagram ( 6, 7 Tool Only )

    10. KEY CIRCUIT DIAGRAM ( 6, 7 TOOL ONLY ) 3-56 3-57...

  • Page 54: Waveforms

    • WAVEFORMS X1101 PMV03 PMV03 PMV03 PMV03 IC1202 IC1601 13.5 MHz PIN1 PIN3 PIN29 PIN26 PIN45 24.576MHz HOST_RXD HOST_TXD SDRAM_CLK1 IC1601 PMV02 X901 PMV02 PMV02 PMV02 PMV02 PIN1 PIN9 14.31818MHz PIN18 PIN10 PIN22 PIN2 PHY_CLK VIN_CLK VOUT_CVBS VOUT_G/Y VOUT_C VOUT_R/Pr PMV02 PMV02 IC901...

  • Page 55: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC151_KIA78R25 0.01 0.01 0.01 0.00 0.00 0.00 1.57 1.56 1.57 5.70 5.70 5.70 2.94 2.96 2.94 0.22 1.28...

  • Page 56

    MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. 3.19 2.96 2.93 1.35 1.37 1.68 Q151_STB1132_5.2V 3.24 3.24 3.22 1.17 1.17 1.17 0.09 0.09 0.09 0.00 0.00 0.00 0.21 0.33 1.37...

  • Page 57: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD(TOP SIDE) 3-64 3-65...

  • Page 58: Main P.c.board(bottom Side)

    2. MAIN P.C.BOARD(BOTTOM SIDE) 3-66 3-67...

  • Page 59: I/o P.c.board

    3. I/O P.C.BOARD ( TOP VIEW ) ( BOTTOM VIEW ) 4. JUNCTION P.C.BOARD ( TOP VIEW ) ( BOTTOM VIEW ) 3-68 3-69...

  • Page 60: Key P.c.board

    5. KEY P.C.BOARD 7. POWER P.C.BOARD ( 6, 7 TOOL ) ( TOP VIEW ) ( BOTTOM VIEW ) 6. TIMER P.C.BOARD ( 6, 7 TOOL ) ( TOP VIEW ) ( BOTTOM VIEW ) 3-70 3-71...

  • Page 61

    SECTION 4 RS-01A LOADER PART CONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ......................4-2 THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM ..........4-15 1. RECORDING LAYER ..............................4-15 2. DISC SPECIFICATION...............................4-16 3. DISC MATERIALS ..............................4-16 4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA, LEAD-IN ZONE AND LEAD-OUT ZONE...............................4-20 HOW TO USE TEST TOOL ............................4-24...

  • Page 62: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE Reset or Power Check. Check it after connecting the power cable only on interface cable for NO Reset or Power ON. Are the pin 44 of Check the power(5V/12V) short. LPB271+5V, pin41 of LPB271+12V Repair the SMPS Block respectively after the power cable connecting? Does the pin #1...

  • Page 63

    System Check. Load tray without inserting disc. Does Tray operate normally? Go to “Tray operating is abnormal” Does Pick-up move to inside? Go to “Sled operating is abnormal” Go to “Focus Actuator operating is Does Pickup lens move abnormal” up/down? Go to “Laser operating is Does Laser turn on? abnormal”...

  • Page 64

    Tray operating is abnormal. Tray open doesn’t work. Check the connction of LIC201 pin 66. Is there Tray Replace the LIC201. control signal input? Check the communication line (LIC301 pin 46) between LIC201. Is there Tray WhenLPF303 is open, Is drive voltage output? Replace the LIC301.

  • Page 65

    Sled operating i s abnormal. Is there Sled control signal output? Replace the LIC201. (LIC201 pin 68,69) Is there Sled drive voltage input? Check the LR316, LR317. (LIC301 pin 29,30) Is there Check the connection of LIC121 Is DRVMUTE2 signal ‘H’? Sled drive voltage output? pin 32.

  • Page 66

    Spindle operating is abnormal Is there Spindle control DSP output? Replace the LIC201. (LIC201 pin70) Is there Is there Check the output of LIC301 pin 43. Spindle drive voltage output? FG signal input? Check the connector LPM301. (LIC301 pin 11, 13, 16) (LIC201 pin 71) Replace the LIC301.

  • Page 67

    Focus Servo is unstable Is FE signal output normal in Focusing Check Pickup Read Power Replace the Pick up. Up/Down? is 1.3~1.7mW? (LIC121 pin25*) Replace the LIC121. Is FDRV signal output normal in Focusing Replace the LIC201. Up/Down? (LIC201 pin 62) * LIC121 pin25 is MOUT2(FEP Monitor2).

  • Page 68

    Track Servo is unstable Is TE signal Is PICK UP Check the PICK UP FFC. output normal in Focusing (E, F, G, H) output normal? Replace the PICK UP. ON and Tracking OFF? (LPM101 pin 8, 5, 9, 4) (LIC121 pin 24*) Replace the LIC121.

  • Page 69

    Recognition Fail Case 1: CD-ROM Fail Check Pickup Read Power Go to “LD CHECK”. was 1.3 ~1.7mW? Does Focus Servo Go to “Focus Servo is unstable”. operate normally? Check Pickup Check the Pick-up FFC and LPM101. RF signal LIC121(Pin81) Replace the Pick-up. RFOUT was 2~2.5V? Check EQOUTP Replace LIC121.

  • Page 70

    Recognition Fail Case 2 : DVD Disc Check Pick-up Read Power Go to ‘LD CHECK’. was 1.1~1.3mW. Replace the Pickup. Is there RF signal at LIC121 Pin81? Is there RF signal at LIC121 Pin95(RFP) Replace the LIC121. and Pin96 (RFN)? Check again after the replace Replace the LIC201.

  • Page 71

    In case of writing fail. Normal Case Check the media Check disc label. DVD ±R/RW? Does the disc Remove the dust,fingerprint and have any dust,scratch, if the disc has long width scratch, fingerprint …? change it. Finalized Disc? Eject disc. If DVD ±R disc,use new DVD ±...

  • Page 72

    Writing Part Check Load tray with DVD ±R/RW disc. Press the “REC” key. Does writing finish without any error? Is the written file Eject tray. read normally? Go to “LD CHECK”. Is the re-written file read normally? Check and replace LIC201, LIC121, LIC101. 4-12...

  • Page 73

    LD CHECK (Laser operating is abnormal) Perform 6. Optical Power Setting parameter check from‘How to use Test tool’. Execute “C.Laser Power Setup”of Is ALPC parameters “How to use Test Tool” valid? Perform 5. Optical Power Setting Check reference voltage. OFF level W1SET level &FPD W2SET level &FPD W3SET level &FPD...

  • Page 74

    CD/DVD ? Select Mode: CD, Test and perform Select Mode: DVD, Test and perform Test from 4. LD Test of ‘How to use Test from 4. LD Test of ‘How to use Test tool’ Test tool’ Check the input of CD/DVD. Check the input of CD/DVD.

  • Page 75

    Select Mode: DVD, Test and perform Select Mode: DVD, Test and perform Test from 4. LD Test of ‘How to use Test from 4. LD Test of ‘How to use Test tool’ Test tool’ Check the input of CD/DVD. Check the input of CD/DVD. (pin 10 of LPM101) (pin 10 of LPM101) Check the input of W2SET.

  • Page 76: The Difference Of Dvd-r/rw, Dvd+r/rw Discs And Dvd-rom

    THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM 1. RECORDING LAYER • DVD-ROM (Read Only Disc) 0.4 um • DVD+R/RW Disc 4-16...

  • Page 77: Disc Specification

    2. DISC SPECIFICATION 3. DISC MATERIALS 1) DVD-ROM < Single Layer > < Dual Layer > 4-17...

  • Page 78

    2) Recording format using organic dye material ( DVD-R / DVD+R ) The format that records data through the creation of recorded marks by changing the organic dye material with a laser beam. Disc structure Recording principles [ Recording ] Recording is done by changing the organic dye layer and the substrate with a laser When a strong laser is applied to a disc, the temperature of the organic dye material goes up, the dye is decomposed and the substrate changes at the same time.

  • Page 79

    3) Recording format using phase-change recording material ( DVD-RW / DVD+RW ) • Data is recorded by changing the recording layer from the amorphous status to the crystalline status, and played back by reading the difference of the reflection coefficient. Amorphous: Non-crystalline.

  • Page 80

    To make recordings, it is necessary to modulate the write pulse, which is called “Write Strategy”. There can be many types in Write Strategy. Typically Write Strategy for DVD ±R has NMP(Non Multi-Pulse) type and MP(Multi-Pulse) type. In NMP type each single mark is created by subsequent separated short pulses. In MP type each single mark is created by one continuous pulse.

  • Page 81: Organization Of The Inner Drive Area, Outer Drive Area, Lead-in Zone And Lead-out Zone

    4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA, LEAD-IN ZONE AND LEAD-OUT ZONE 1) Layout of DVD-RO M disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Inform ation Zone hole Zone...

  • Page 82

    3) Layout of DVD+RW disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Inform ation Zone hole Zone area 1th transition area 2th transition area area Unrecorded Disc Lead-in Zone Data Zone Lead-out Zone Outer Disc...

  • Page 83

    4) Layout of DVD-R/RW disc Disc Center Diameter 120 mm Diameter 44mm Diameter 33mm Diameter 22mm Diameter 16mm Diameter 15mm Center Clamping 3th transition Unrecorded Disc hole Area area 1th transition area 2th transition area area Inform ation Area R-Information Lead-in Lead-out Data Recordable Area...

  • Page 84: How To Use Test Tool

    HOW TO USE TEST TOOL 1. ALPC MEASUREMENT SYSTEM We need basically several measurement instrument to adjust Optical Power of CD and DVD Disc • ESSENTIAL INSTRUMENT 1) Optical Power meter & Sensor (ADVANTEST, TQ8230/Q82014A) 2) Personal Computer 3) Adjustment Program (Dragon or ALPC) --> being recommended ALPC Program in case of SVC •...

  • Page 85: Execute Alpc Program

    3. EXECUTE ALPC PROGRAM 1) Execute Dragon_JW3P.exe file. 2) Enter the password. It is ‘qaz’. When you enter the password, turn off the ‘Caps lock’ in your keyboard. 3) Set up the target device. Press ‘ATAPI’ button on the main dialog of Dragon tool. And find the target device which is GDA-4164L.

  • Page 86

    4) If the target device setting is completed, execute the ‘Setup Laser Power(Manual)’ in the ‘Alpc/Opc’ menu. CD/DVD selection ‘WriteScribe’ function (don’t use it.) Laser power setup parameter Non multi pulse power on multi pulse power on Laser Read power on Erase power on ‘WriteScribe’...

  • Page 87: Optical Power Setting

    4. OPTICAL POWER SETTING <Test for checking DVD LD and CD LD> When you change the Travers ass°Øy(including pick-up) or loader PCB, you must do the laser power setting to match pick-up and loader PCB. 1) DVD LD power setting •...

  • Page 88: Confirm Optical Power Setting Parameter

    5. CONFIRM OPTICAL POWER SETTING PARAMETER LD Test result is ok, but Loader performance is bad. 1. Check ALPC parameter value 1) Press button to open ‘Results Display’ dialog. 2) Press button. ALPC Para - We can see optical power setting value. - Write optical Power Setting value to paper.

  • Page 89: Optical Power Setting Parameter Range

    6. OPTICAL POWER SETTING PARAMETER RANGE [VALID ALPC Parameters] < CD > <DVD> 1) CD-R READ Reference DAC : 30 ~150 1) DVD-R READ Reference DAC : 40 ~145 2) CD-RW READ Reference DAC : 80 ~ 250 2) DVD-RW READ Reference DAC : 40 ~145 3) VWDC1 : 10 ~ 39...

  • Page 90: Attachment. Optical Power Measurement

    7. ATTACHMENT. OPTICAL POWER MEASUREMENT Optical Power measurement is to adjust LD power from Pick-up To measure optical power, LD status is on. Other light affects to optical power. Avoid other light to measure exact power Generally headlight power is about 50µW, Sun power is about 100mW. Optical Power measurement method 1.

  • Page 91: Internal Structure Of The Pick-up

    INTERNAL STRUCTURE OF THE PICK-UP 1. BLOCK DIAGRAM OF THE PICK-UP(LPC-812R) CXA2694N VC(PDIC) PD4CI VCC(PDIC) GND(PDIC) SW(PDIC) SW(FM) VCC(FM) VREF GND(FM) VREF(FM) FM_OUT DVDO TEMP CP0076AH Themester W1DISN W1DIS W2DISN W2DIS W3DISN W3DIS OSCEN OUTB W3SET W2SET OUTA W1SET RSET OUTSET ENABLE Focus...

  • Page 92: Pick Up Pin Assignment

    2. PICK UP PIN ASSIGNMENT Pin Name Signal Description Tracking Actuator drive signal- Tracking Actuator drive signal+ Tilt- Tilting Actuator drive signal- Tilt+ Tilting Actuator drive signal+ Focusing Actuator drive signal- Focusing Actuator drive signal+ GND(LDD) Ground connection for LDD VCC(LDD) Power supply for LDD ENABLE...

  • Page 93: Signal Detection Of The P/u

    3. SIGNAL DETECTION OF THE P/U Infrared Iaser Pick-Up module Focusing Tracking Photo Diode 1) Focus Error Signal ==> (A+C)-(B+D) This signal is generated in RF IC (LIC121 : AN22113A) and controls the pick-up’s up and down to focus on Disc.

  • Page 94: Description Of Circuit

    DESCRIPTION OF CIRCUIT 1. ALPC (AUTOMATIC LASER POWER CONTROL) CIRCUIT 1-1. BLOCK DIAGRAM LPM 101 LIC 121 AN22113A LIC 201 VREFPD MN103SA6G Optical Pick-up S/H2 LPC-812R 127 FPDM Erase S/H3 Space S/H1 Write Strategy Signal Serial ADSC 1-2. ALPC (AUTOMATIC LASER POWER CONTROL) CIRCUIT OPERATION THE ALPC BLOCK DETECTS THE LASER OUTPUT POWER OF THE FRONT MONITOR.

  • Page 95: Focus/tracking/sled Servo Circuit

    DESCRIPTION OF CIRCUIT 2. FOCUS/TRACKING/SLED SERVO CIRCUIT 2-1. FOCUS, TRACKING & SLED SERVO PROCESS Focus, Tracking, Sled Servo Pick-up Focus Error Detector A,B,C,D A,B,C,D E,F,G,H Focus Error Detector A,B,C,D E,F,G,H IC121 AN22113A LIC201 Tracking Focusing Servo Control Actuator MN103SA6G LEVEL SHIFT FDRV PARALLEL LEVEL SHIFT...

  • Page 96

    DESCRIPTION OF CIRCUIT 2. FOCUS/TRACKING/SLED SERVO CIRCUIT 2-1. FOCUS, TRACKING & SLED SERVO PROCESS 4-36...

  • Page 97: Spindle Servo Circuit

    DESCRIPTION OF CIRCUIT 3. SPINDLE SERVO CIRCUIT 3-1. SPINDLE SERVO PROCESS LIC121 A N22113A Pick-up Wobble Signal Generator WBLIN LIC201 MN103SA6G SERVO DSP Spindle Motor Frequency Controller SPDRV Phase Controller LIC301 BD795 6FS 4-37...

  • Page 98: Major Ic Internal Block Diagram

    MAJOR IC INTERNAL BLOCK DIAGRAM LIC121 (AN22113A) : FEP(RF) ANALOG SIGNAL PROCESSOR • PIN ASSIGNMENT CLUMPGT CDRFP CDRFN LPPS CDHPF ASENV/LPPM DLY1 GND4 DLY2 VCC52 GND2 RSDAT RSEN SDAT AN22113A VCC4 (Top View) 128Pin TQFP VCC1 GND6 WIDGT/SH4 VREF SVREF TQFP-128-P-1414A FEPIDGT/SH6 VCC3...

  • Page 99

    MAJOR IC INTERNAL BLOCK DIAGRAM LIC121 (AN22113A) : FEP(RF) ANALOG SIGNAL PROCESSOR • BLOCK DIAGRAM 4-39...

  • Page 100

    MAJOR IC INTERNAL BLOCK DIAGRAM LIC121 (AN22113A) : FEP(RF) ANALOG SIGNAL PROCESSOR • BLOCK DIAGRAM HOST HOST SDRAM SERVO 16 Mbit ADSC ANALOG 64 Mbit 16.9MHz PERIPHERAL Falsh 32 bit CPU 2 Mbyte 4-40...

  • Page 101: Block Diagram

    IC301 (BD7956FS) : CD-ROM/DVD-ROM 7CH POWER DRIVER • BLOCK DIAGRAM LDO- ACO1+ LDO+ ACO1- 100k ACO2+ ACTIN1 ACO2- 100k ACTIN2 ACO3+ TJMON ACO3- 100k BTHC SPVM_S ACTIN3 PGND1 LDIN PGND2 AGND SPCNF SPV 1 SLO1+ PGND3 SLO1- SPV 2 SLO2+ SPRNF SLO2- SLGND...

  • Page 103: Circuit Diagrams

    CIRCUIT DIAGRAMS 1. DSP CIRCUIT DIAGRAM 4-42 4-43...

  • Page 104: Rf Circuit Diagram

    2. RF CIRCUIT DIAGRAM 4-44 4-45...

  • Page 105: Drive Circuit Diagram

    3. DRIVE CIRCUIT DIAGRAM 4-46 4-47...

  • Page 106: Circuit Voltage Chart

    CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE STATE STATE STATE STATE STATE STATE STATE STATE STATE STATE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.

  • Page 107: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD (TOP VIEW) 4-50 4-51...

  • Page 108: Main P.c.board(bottom View)

    2. MAIN P.C.BOARD (BOTTOM VIEW) 4-52 4-53...

This manual also for:

Dr175, Dr676x

Comments to this Manuals

Symbols: 0
Latest comments: