LG RC-185 Service Manual
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LG RC-185 Service Manual

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LG
RC-185
MODEL
SERVICE MANUAL

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Summary of Contents for LG RC-185

  • Page 1 RC-185 MODEL SERVICE MANUAL...
  • Page 2 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ..... 1-2 SERVICING PRECAUTIONS ....................1-3 THE STEPS FOR CHANGE THE OPTION CODE ............1-4 UP-DATING PROGRAM ......................1-5 SPECIFICATIONS ........................1-7...
  • Page 3 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 4 SERVICING PRECAUTIONS CAUTION: Before servicing the VCR + DVD RECODER cov- Electrostatically Sensitive (ES) Devices ered by this service data and its supplements and addends, Some semiconductor (solid state) devices can be damaged read and follow the SAFETY PRECAUTIONS. NOTE: if easily by static electricity.
  • Page 5 UP-DATING PROGRAM BURNING DISC • For up-dating the DVD program using the disc, it must burning the disc which include the DVD software. • For recorder combi set which using the disc downloader program are DVD Program and Loader Program. •...
  • Page 6 DVD UPGRADE INSTRUCTION FORMAT NO 1 1. Press POWER KEY to turn on. 2. After booting, insert the upgrade disc, and you will see massage like [FIGURE 1] 3. Press “REC” key (front or remote) 3 times and you will see as [FIGURE 2] with remote Chose one of them then Press enter 4.
  • Page 7 SPECIFICATIONS General Power requirements AC 200-240V, 50/60 Hz Power consumption Dimensions (approx.) 430 X 78.5 X 310 mm (w x h x d) Mass (approx.) 5.2 kg Operating temperature 5°C to 35°C Operating humidity 5 % to 90 % Television system PAL B/G, PAL I/I, SECAM D/K colour system Recording format SYSREM...

  • Page 8: Table Of Contents

    SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS ........................2-2 1. CABINET AND MAIN FRAME SECTION .................2-2 2. DECK MECHANISM SECTION(RS-01A) ................2-3 3. DECK MECHANISM SECTION(D37(N)) .................2-4 4. PACKING ACCESSORY SECTION ..................2-7...

  • Page 9: Exploded Views

    EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION...

  • Page 10: Deck Mechanism Section(Rs-01A)

    2. DECK MECHANISM SECTION(RS-01A)

  • Page 11: Deck Mechanism Section(D37(N))

    3. DECK MECHANISM SECTION(D37(N)) 1) FRONT LOADING MECHANISM SECTION...
  • Page 12 3. DECK MECHANISM SECTION(D37(N)) 2) MOVING MECHANISM SECTION (1) OPTIONAL PART...
  • Page 13 3. DECK MECHANISM SECTION(D37(N)) 3) MOVING MECHANISM SECTION (2)

  • Page 14: Packing Accessory Section

    4. PACKING ACCESSORY SECTION OPTIONAL PARTS 810 CABLE ASS'Y RF CABLE(COAXIAL) PLUG ASS'Y 1WAY PLUG ASS'Y 2WAY BATTERY REMOCON 821 SCART CABLE INSTRUCTION ASSEMBLY PACKING PACKING BOX CARTON...
  • Page 15 SECTION 3 ELECTRICAL CONTENTS OVERALL WIRING DIAGRAM VDR PART ......3-2 VCR PART VDR ELECTRICAL TROUBLESHOOTING GUIDE ................3-66 1. POWER(SMPS) CIRCUIT ........3-66 ELECTRICAL ADJUSTMENT 2. NO COMPONENT VIDEO SIGNAL WHEN PROCEDURES ............3-3 PLAYING DISC ............3-69 3. NO COMPOSITE / S-VIDEO SIGNAL WHEN VCR ELECTRICAL TROUBLESHOOTING PLAYING DISC ............3-70 4.

  • Page 16: Overall Wiring Diagram

    OVERALL WIRING DIAGRAMS HDMI MEMORY CARD PMH01 PM602 PMH01 PMC01 PV601 MIC_IN_R MIC_IN_L MIC_DET_L SUPER_C SUPER_Y TPA+ TPA- TPB+ TPB- SPI_CS SPI_MISO SPI_MOSI SPI_CLK VDR_RESET IEC958 TU_A_R_OUT TU_A_L_OUT DVD_A_R_OUT DVD_A_L_OUT VCR_A_R_OUT VCR_A_L_OUT E5_R/Pr_OUT E5 _B/Pb_OUT E5 _G/Y_OUT E5 _C_OUT E5 _Y_OUT VCR_V_IN E5_DVD_V_OUT MIXED_V_OUT...

  • Page 17: Vcr Part

    VCR PART ELECTRICAL ADJUSTMENT PROCEDURES 1. Servo Adjustment 1) PG Adjustment • Test Equipment a) OSCILLOSCOPE : PAL SP TEST TAPE • Adjustment And Specification MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION V.Out PLAY R/C TRK JIG KEY 6.5 ± 0.5H H/SW(TP) •...

  • Page 18: Vcr Electrical Troubleshooting Guide

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 1. Power(SMPS) CIRCUIT NO 5.3VA. Is the D127 Replace the D127 normal? Replace the F101 Is the F101 normal? (Use the same Fuse) Is the D128 Replace the D128 normal? Is the BD101 Replace the BD101 Normal? Power Line of Main PCB(VCR) is short...
  • Page 19 VCR ELECTRICAL TROUBLESHOOTING GUIDE (To Cap, Drum Motor ) No 12VA No REG 12V Is the Vcc(13V) Check or Replace Is the Vcc(13V) sup- Check or Replace supplied to C130? the D126 plied to Q126Collector? the D126 Is the D132 Is the Vcc(33V) sup- Check the ‘PWR CTL Replace the D132...
  • Page 20 VCR ELECTRICAL TROUBLESHOOTING GUIDE No 28V (HSR) Check or Replace Is the Vcc(30V) supplied to Q120 Collector? the D129 Check or Replace Is the Vcc(30V) sup- plied to Q120 Base? the ZD153 Check the ‘HSR “H” Is the Vcc(33V) supplied to Q121 Collector? signal from µ-com Check or Replace the...

  • Page 21: System/Key Circuit

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 2. SYSTEM/KEY CIRCUIT (1) AUTO STOP Auto Stop Check the Drum Motor Does the H/SW waveform appear at IC501 Pin23? signal. Do T/UP Reel Pulses Do the T-UP Reel Pulses Does 5.0V appear at the appear at the Q501 Base appear at IC501 Pin3? RS501? terminal?

  • Page 22: Servo Circuit

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 3. SERVO CIRCUIT (1) Unstable Video in PB MODE Does the Noise level of the screen change periodically? Readjust the height of the Do the CTL pulses appear Is adjusting the height of CTL Head. at IC501 Pin76? the CTL Head accurate? Does the CFG waveform appear at the IC501 pin67?
  • Page 23 VCR ELECTRICAL TROUBLESHOOTING GUIDE 2. SERVO CIRCUIT (3) When the Capstan Motor doesn’t run, When the Capstan Motor doesn’t run, Refer to “SMPS(CAPSTAN/12Volt) Does 12VA appear at PMC01? Trouble Shooting”. Does 2.8V appear at PMC01? Check the PMC01 and the Capstan Does the PWM signal appear at IC501 Pin108? Motor Ass’y.
  • Page 24 VCR ELECTRICAL TROUBLESHOOTING GUIDE 2. SERVO CIRCUIT (4) Keys do not work Keys do not work Is 5V applied to IC501 Refer to “SMPS 5.3VA Pin36? Trouble Shooting”. Does CLOCK LED change Replace the defective when a function button is switches.

  • Page 25: Y/C Circuit

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 4. Y/C CIRCUIT (1) No Video in EE Mode, No Video in EE Mode Does the Video signal Check the IC802 Pin31. appear at IC301 Pin15? Is REG 5.0V applied to Check the 5.0V, 5.3VA IC301Pins4, 22, 47, 50, 52, Line.
  • Page 26 VCR ELECTRICAL TROUBLESHOOTING GUIDE 3. Y/C CIRCUIT (2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode, Is 5.0V 5.3VA applied to IC301 Check the line of the 5.0V 5.3V Line. (Power Circuit) Pins22, 47, 50, 52, 60, 84? Refer to ‘SYSTEM I Is I C BUS signal applied to...
  • Page 27 VCR ELECTRICAL TROUBLESHOOTING GUIDE 3. Y/C CIRCUIT (3) When the C(Color) signal doesn’t appear on the screen in PB Mode, Is 5.0V 5.3VA applied to the Check the line of the 5.0V 5.3VA Line. (Power Circuit) IC301 Pins24, 42, 55, 72, 81. Does the waveform RF signal Replace the IC301.
  • Page 28 VCR ELECTRICAL TROUBLESHOOTING GUIDE 3. Y/C CIRCUIT (4) When the Video signal doesn’t appear on the screen in REC Mode, Is the EE signal normal? Check EE Mode. Is 5.0V 5.3VA applied to the Check the line of the 5.0V IC301 Pins22, 41, 47, 50, 5.3VA line.

  • Page 29: Hi-Fi Circuit

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 5. Hi-Fi CIRCUIT (1) No Sound(EE Mode) No Sound. Check the TU Audio of IC801 Check the IC1501 Pins184, 185. Pins2, 3. Check the DVD Audio of IC801 Check the DVD Audio OUT. (JK901 AMP_A_L/R). Pins4, 5. Check the AV1 Audio of IC801 Check the Scart1 Jack.
  • Page 30 VCR ELECTRICAL TROUBLESHOOTING GUIDE 3. Y/C CIRCUIT (2) Hi-Fi Playback PB mode No Sound. Check the Vcc of IC801 Check Power 5.0V, 12V. (Pins34, 40) Check the Hi-Fi Selection switch. Check IC501 Pin26 (A.H/SW) (IC801 Pin41) and the Tape quality. Is the RF Envelope at IC801 Pin44 over 2Vp-p? Check IC801 Pin42(Data),...
  • Page 31 VCR ELECTRICAL TROUBLESHOOTING GUIDE Hi-Fi REC. It can’t be recorded Hi-Fi Audio signal. Check Vcc of IC801. (Pins34. 40) Check Power 5V, 12V. Check ports of µ-COM. Check IC801 Pin42(Data), Pin43(CLOCK). (IC501 pins 17, 18) Check Audio input signal of IC801 Do Audio signals appear at IC801 Pins2, 3(TU.A.), 4, 5(DVD.A.), 6, Pins16, 17?

  • Page 32: Tuner/If Circuit

    VCR ELECTRICAL TROUBLESHOOTING GUIDE 6. Tuner/IF CIRCUIT (1) No Picture on the TV screen No picture on the TV screen Does the Video signal Is 33V applied to TU701 Check 33V line. appear at TU701 Pin19. Pin17? Is +5V applied to TU701 Check 5V line.
  • Page 33 VCR ELECTRICAL TROUBLESHOOTING GUIDE (B) No Sound No Sound. Check the Vcc of IC1501 Pins4, 9, 14, 21, 24, 29, 34, 38, 43, 46, 52, 75, 78, 82, 89, 98, 104, 110, 117, 123, 125, 131, Check 3.3V Line. 137, 144, 146, 152, 158, 164, 1878,186, 194,196.. Check the Vcc of IC1501 Pins 3, 31, 72, Check 3.3V Line.

  • Page 34: Block Diagrams

    BLOCK DIAGRAMS 1. POWER(SMPS) BLOCK DIAGRAM T101 TRANS RECTIFIER & BD101 5.3VA SMOOTING BLOCK 5V REG BLOCK (D123,C123,C133, REG5V (Q162,ZD161,C163, L123) SNUBBER R162,C162) Cap Vcc C103 BLOCK RECTIFIER & (D101,C105 SMOOTING BLOCK 13.5VA 12V REG BLOCK C106,R104) (D122,C122,C132, (Q165,ZD152,C164, L122) REG12V R164,R165,C153) RECTIFIER &...

  • Page 35: Tu/If Block Diagram

    2. TU/IF BLOCK DIAGRAM 3. VPS BLOCK DIAGRAM TU701 PAL (NTSC) TUNER TUNER BLOCK VPS BLOCK 5.3VA BB+_5V VSS A VDD A MOD_AUDIO AUDIO_IN MODULATOR_4í Lí SDA (CH_SW) VSS D VDD D 5.0V MB_5V N.C. N.C. SCL (CTL) VCRí Hí MOD_VIDEO VIDEO IN CVBS...

  • Page 36: Y/C Block Diagram

    4. Y/C BLOCK DIAGRAM AVCP 29PIN BUFFER 15PIN VIDEO VIDEO DVD CVBS MICOM IC501 17PIN VIDEO IC301 VIDEO MICOM VIDEO AVCP SYSTEM 82PIN 19PIN SEC/MES DET ëHí 19PIN CVBS IC302 SEC.REC.COLOR MIXED Y/C 77PIN LA70100 MIXED 21PIN SECAM IC802 MM1443 DVD CVBS CANAL FRONT...

  • Page 37: Hi-Fi Block Diagram

    5. Hi-Fi BLOCK DIAGRAM FRONT SCART1 SCART2 JACK TUNER TUNER AUDIO TUNER DVD AUDIO TUNER / Hi-Fi Hi-Fi Hi-Fi CANAL IC WITH WITH RCA KARAOKE BOAR D VCR AUDIO 3-26 3-27...

  • Page 38: System Block Diagram

    6. SYSTEM BLOCK DIAGRAM TO/FROM DECK TO/FROM AVCP 5.3VA MODE S/W MS501 74 75 67 21 82 23 24 96 C.V IN2 I_LIMIT MODE S1 MODE S1 C.V IN MODE S2 DIS501 REC' H' MODE S2 MODE S3 DISPLAY MODE S4 SEC_DET' H' MODE S3 FROM KARAOKE BOARD...

  • Page 39: Scart & Swich Block Diagram

    7. SCART & SWICH BLOCK DIAGRAM DVD_CVBS Mixed_YC REC / PB AVCP_VIDEO DVD_CVBS BLOCK BOARD R G B Y C MODULATOR S/W video CVBS JACK CVBS & RCA (Pr) Dri ve SCART (R) Tuner RCA (Y) SCART (G) AV1 SCART Pin8 Pin16 RCA (Pb)

  • Page 40: 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 41: Tuner Circuit Diagram

    2. TUNER CIRCUIT DIAGRAM 3-34 3-35...

  • Page 42: A/V Circuit Diagram

    3. A/V CIRCUIT DIAGRAM 3-36 3-37...

  • Page 43: Hi-Fi Circuit Diagram

    4. Hi-Fi CIRCUIT DIAGRAM 3-38 3-39...

  • Page 44: System Circuit Diagram

    5. SYSTEM CIRCUIT DIAGRAM 3-40 3-41...

  • Page 45: Scart Circuit Diagram (Scart Model Only)

    6. SCART CIRCUIT DIAGRAM (SCART MODEL ONLY) 3-42 3-43...

  • Page 46: Key Circuit Diagram

    7. KEY CIRCUIT DIAGRAM 3-44 3-45...

  • Page 47: Karaoke Circuit Iagram ( Karaoke Model Only )

    8. KARAOKE CIRCUIT IAGRAM ( KARAOKE MODEL ONLY ) 3-46 3-47...

  • Page 48: Hdmi Circuit Diagram( Hdmi Model Only )

    9. HDMI CIRCUIT DIAGRAM( HDMI MODEL ONLY ) 3-48 3-49...

  • Page 49: Waveforms

    WAVEFORMS ✦ IC301 Oscilloscope Waveform ✦ IC501 Waveform Photographs IC301 Pins 8, 9 IC301 Pins 15, 17, IC301 Pin 31 IC301 Pin 98 V.HSW DV.SYNC CTL(+) CTL(-) PB mode 19, 21 PB/REC mode REC mode (IC501 Pin 23) (IC501 PIN 24) (IC501 Pin 74) (IC501 Pin 75) 1V/10mS...

  • Page 50: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. I C 3 0 1 1.3V 1.48V 4.98V 5.3V 5.26V 5.24V 100m 4.8V 4.8V 2.36V 2.63V 5.26V 5.24V I C 8 0 1...
  • Page 51 E-MODE SECTION POWER ON Q501 740M SYSTEM Q503 5.19 5.19 4.57 Q501 0.010V 0.020V 4.800V 0.010V 4.950V 4.770V Q504 Y/C_VIDEO Y/C_VIDEO Q502 0.010V 0.020V 4.800V 0.010V 4.970V 4.770V Q505 Y/C_VIDEO Y/C_VIDEO Q503 4.510V 5.190V 5.200V 4.500V 5.180V 5.190V Q506 2Fsc 2Fsc Q504 0.010V...

  • Page 52: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. VCR P.C.BOARD(TOP VIEW) 3-56 3-57...

  • Page 53: Vcr P.c.board(Bottom View)

    2. VCR P.C.BOARD(BOTTOM VIEW) 3-58 3-59...

  • Page 54: Smps P.c.board

    3. SMPS P.C.BOARD 4. HDMI P.C.BOARD(HDMI MODEL ONLY) ( TOP VIEW ) ( BOTTOM VIEW ) 3-60 3-61...

  • Page 55: Karaoke P.c.board

    5. KARAOKE P.C.BOARD (KARAOKE MODEL ONLY) 3-62 3-63...

  • Page 56: Key P.c.board

    6. KEY P.C.BOARD ( 7 TOOL ) ( 8 TOOL ) ( 9 TOOL ) 3-64 3-65...

  • Page 58: Vdr Part

    VDR PART VDR ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER(SMPS) CIRCUIT No .5.3VA Is the D127 Replace the D127 Normal? Is the F101 Replace the F101 Normal? (Use the same Fuse) Is the D128 Replace the D128 Normal? Is the BD101 Replace the BD101 Normal? Is the D124 Replace the D124...
  • Page 59 VDR ELECTRICAL TROUBLESHOOTING GUIDE No 5.0V No 33V Is the Vcc(5.3V) sup- Check or Replace Is the Vcc(34V) supplied Check or Replace plied to Q162 collector? the D123 to Q161 Emittor? the D126 Is the Q162 Base Check the 33V Line Is the Q161 Base Check the PWR CTL ‘H’?
  • Page 60 VDR ELECTRICAL TROUBLESHOOTING GUIDE No 3.3V No 2.5V Is the Vcc(3.8V) sup- Check or Replace Is the Vcc(13.5V) sup- Check or Replace plied to IC153 pin 1? the D127 plied to D156 anode? the D156 Is the IC153 pin4 ‘ Check the DVD CTL Is the IC154 pin4 Check the DVD CTL...

  • Page 61: Component Video Signal When Playing Disc

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 2. NO COMPONENT VIDEO SIGNAL WHEN PLAYING DISC Component : Component : Component : SW901 Replace No Y Signal No Pb Signal No Pr Signal R905 R904 R903 SW901 Check IC901 Y-23, 24 pin, IC901 - 11Pin IC901 –...

  • Page 62: Composite / S-Video Signal When Playing Disc

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 3. NO COMPOSITE / S-VIDEO SIGNAL WHEN PLAYING DISC COMPOSITE : S-VIDEO : S-VIDEO : No Signal No Y Signal No C Signal R911 L913 LP12 IC901 - 29, 30 Pin IC901 – 4 IC901 – 8 IC901 –...

  • Page 63: Tv, External Input Video Signal

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 4. NO TV, EXTERNAL INPUT VIDEO SIGNAL No : S-JACK No : TV signal No : AV1 signal No : AV2 signal signal TU701 1-19 IC1501 – 19, Check signal IC802 - 1 IC802 - 3 IC301 - 17 27, 33 check in And circuit...

  • Page 64: When Playing Disc, No Audio Output

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 5. WHEN PLAYING DISC, NO AUDIO OUTPUT Check IC15A1-pin1~4: IC15A1-pin15, 18 (Audio_ Pin10(reset) : IC1101 DEFECT out R/L): Is there a signal? Pin7,8(I C) : Check Q15C1, 15C2(In IC805-Pin14, 19(Z_mute_R/L) : Check IC15A1- DVD Board) Q901, 907, IC501-pin58(A_mute_L) : pin3,6,13(VCC) 904, 906(In VCR Board)

  • Page 65: Optical / Digital Output

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 6. NO OPTICAL / DIGITAL OUTPUT R1101 : Check or Replace R1122 : the D126 Check PMV01-pin1 (SPDIF_OUT): Check JK902 & Optical Check FFC cable cable connection CHECK IC1101 DEFECT 3-73...

  • Page 66: Tuner Audio Output

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 7. NO TUNER AUDIO OUTPUT Audio output even Check FFC Cable When playing DISC and VCR part PMV02-30, 32 Check FFC Cable Check audio signals and VCR part IC1501-198, 199 Check IC801 power Check audio signals and other circuits Check IC1501- Check IC1501 power...

  • Page 67: External Input 1, 2, 3 Audio

    VDR ELECTRICAL TROUBLESHOOTING GUIDE 8. NO EXTERNAL INPUT 1, 2, 3 AUDIO Audio output even <when playing DISC, When playing DISC no audio output> check PMV02-30, 32 Check Check FFC Cable audio signals and VCR part Check IC1501 power IC1501 – 198, 199 and other circuits Check audio signals IC1501-64 Check...

  • Page 68: Block Diagrams

    BLOCK DIAGRAMS 1. VDR SET TOTAL BLOCK DIAGRAM IEC958 MIC_IN MIC_DET TP(1395 Signal) DVD_reset Y/Pb/Pr RGB_SYNC RGB_IN A_TUNER MIX_YC Y/C_IN MUTE_LR A_DVD V_DVD A_VCR V_VCR 3-76...

  • Page 69: Vdr Main H/W Block Diagram

    2. VDR MAIN H/W BLOCK DIAGRAM 3-77 3-77...

  • Page 70: Power Block Diagram

    3. POWER BLOCK DIAGRAM 3-78...

  • Page 71: Audio In/Out Block Diagram

    4. AUDIO IN/OUT BLOCK DIAGRAM 3-79...

  • Page 72: Cpu & Control Register & Memory Slot Block Diagram

    5. CPU & CONTROL REGISTER & MEMORY SLOT BLOCK DIAGRAM 3-80 3-80...

  • Page 73: Video In/Out Block Diagram

    6. VIDEO IN/OUT BLOCK DIAGRAM 3-81 3-81...

  • Page 74: Dv1394 In/Out Block Diagram

    7. DV1394 IN/OUT BLOCK DIAGRAM 3-82...

  • Page 75: Memory Card In/Out Block Diagram

    8. MEMORY CARD IN/OUT BLOCK DIAGRAM 3-83...

  • Page 76: Circuit Diagrams

    CIRCUIT DIAGRAMS 1. BGA 308P CIRCUIT DIAGRAM 3-84 3-85...

  • Page 77: Ddr & B To B Connector Circuit Diagram

    2. DDR & B TO B CONNECTOR CIRCUIT DIAGRAM 3-86 3-87...

  • Page 78: Power, Flash, Connector Circuit Diagram

    3. POWER, FLASH, CONNECTOR CIRCUIT DIAGRAM 3-88 3-89...

  • Page 79: Rst, Control/Status_Reg., Atapi

    4. RST, CONTROL/STATUS_REG., ATAPI, HOST_CPLD, LATCH CIRCUIT DIAGRAM 3-90 3-91...

  • Page 80: Video/Audio Codec, Msp Circuit Diagram

    5. VIDEO/AUDIO CODEC, MSP CIRCUIT DIAGRAM 3-92 3-93...

  • Page 81: Dv1394, Memory, Hdmi Circuit Diagram

    6. DV1394, MEMORY, HDMI CIRCUIT DIAGRAM 3-94 3-95...

  • Page 82: Waveforms

    • WAVEFORMS X1101 PMX03 PMX03 PNV01 IC1501 IC1501 13.5MHz PIN3 PIN4 PIN1 PIN176 PIN175 IEC958 AI_MCLKO AI_SCLK IC1502 X1501 PMV02 IC1501 IC1501 IC15A1 PIN108 24.576 MHz PIN16E5_DVD_V_OUT PIN174 PIN173 PIN1 VI_CLK AI_FSYNC AI_D0 AO_D0 PMV02 PMV02 PM02 IC1501 PMV01 PMV01 PIN20 PIN22 PIN28...

  • Page 83: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART MODE MODE MODE PIN NO. PIN NO. PIN NO. I C 1 2 0 1 0.04 0.04 3.04 3.25 0.04 0.04 3.29 3.29 1.02 1.02 1.23 0.04 0.04 3.24 3.24 3.26 1.02 1.01 1.23 0.04 0.04 2.37 2.48 2.47...

  • Page 84: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. VDR P.C.BOARD(TOP VIEW) 3-100 3-101...

  • Page 85: Vdr P.c.board(Bottom View)

    2. VDR P.C.BOARD (BOTTOM VIEW) 3-102 3-103...
  • Page 86 SECTION 4 MECHANISM OF VCR PART(D-37) CONTENTS DECK DECK MECHANISM ADJUSTMENT MECHANISM PARTS LOCATIONS • Fixtures and tools for service ....4-12 1. Mechanism Assembly Mode Check ..4-13 • Top View............4-1 2. Previous Preparation for • Bottom View ..........4-1 Deck Adjustment ........4-14 3.
  • Page 87 DECK MECHANISM PARTS LOCATIONS • Top View Procedure Ref. Posi Part Fixing Type Draw- tion Starting ings 1 Drum Assembly 3 screws 2 Plate Top 2 hooks 3 Holder Assembly CST 6 chasses 4 Gear Assembly Rack F/L 1 hook 2,3,4 5 Opener Door Chassis Hole...
  • Page 88 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Drum Assembly Flat Cable (S1) (S1) (S1) Cap, FPC Holder FPC Fig. A-1 Cautions in assembly of FPC 1. Disassembly of Drum Assembly (Figure A-1) 1) Separate the flat cable from the Drum FPC and the Capstan Motor.
  • Page 89 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Plate Top (Fig. A-2-1) (B') Holder Assembly CST (Fig. A-2-2) Arm Assembly F/L (Fig. A-2-5) Lever Assembly S/W (Fig. A-2-6) (H4) Opener Door (Fig. A-2-4) (H3) Gear Assembly Rack F/L (Fig. A-2-3) Fig. A-2...
  • Page 90 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM 2. Disassembly of Plate Top (Fig. A-2-1) 4. Disassembly of Gear Assembly Rack F/L (Fig. A-2-3) 1) Separate the right part while leaning back the (B) part of 1) Separate the hook (H3) while leaning ahead the hook (3) the plate top toward the arrow direction.
  • Page 91 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Arm Assembly Cleaner (Fig. A-3-3) (H5) Gear Wheel (Fig. A-3-2) Base Assembly A/C Head Motor Assembly L/D (S5) (Fig. A-3-5) (Fig. A-3-1) Head F/E (C1) (Fig. A-3-4) (S4) Fig. A-3 8. Motor Assembly L/D (Fig. A-3-1) 10.
  • Page 92 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Arm Assembly Tension (Fig. A-4-2) (H7) Reel T (Fig. A-4-3) Reel S (Fig. A-4-3) Spring Tension Brake Assembly T Spring Tension (Fig. A-4-1) (H8) (H6) Fig. A-4 13. Brake Assembly T (Fig. A-4-1) 15. Reel S/Reel T (Fig. A-4-3) 1) Release the spring tension from the lever spring hook 1) Disassemble the reel S/ reel T while holding it up (com- (H6).
  • Page 93 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Opener Lid (Fig. A-5-2) Arm Assembly Pinch (Fig. A-5-3) Base Assembly P4 (Fig. A-5-1) (H9) Arm T/up (Fig. A-5-4) Chassis Fig. A-5 16. Base Assembly P4 (Fig. A-5-1) 18. Arm Assembly Pinch (Fig. A-5-3) 1) Release the (A) part of the base assembly P4 from the 1) Hold the arm assembly pinch up.
  • Page 94 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Suppoter Capstan (Fig. A-6-1) Belt Capstan (Fig. A-6-2) Motor Capstan (Fig. A-6-3) Washer(W1) Clutch Assembly D37 (Fig. A-6-5) (L1) (L1) Lever F/R (Fig. A-6-4) Chassis (S6) Fig. A-6 20. Supporter, Capstan (Fig. A-6-1) 22. Lever F/R (Fig. A-6-4) 1) Turn the supporter and Capstan by 90 deg.
  • Page 95 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM (H10) (H11) Gear Sector Gear Cam (Fig. A-7-3) (Fig. A-7-2) (W2) Washer (W2) Brake Assembly Capstan Gear Cam Hole(B) Plate Slider (Fig. A-7-4) Gear Drive (L2) (Fig. A-7-5) (Fig. A-7-1) Gear Drive Hole(A) Lever Tension (Fig.
  • Page 96 DECK MECHANISM DISASSEMBLY Gear assembly P2 Hole Gear assembly P3 Hole Gear Assembly P3 (Fig. A-8-2) Gear Assembly P2 (Fig. A-8-1) (H13) (H12) Lever Tension Boss Plate slider Hole(B) (H14) Base Loading (Fig. A-8-5) Chassis Base Assembly P3 (Fig. A-8-4) Base Assembly P2 (Fig.
  • Page 97 DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Base Tension (Fig. A-9-1) Arm Assembly Idler Jog (Fig. A-9-2) Chassis Fig. A-9 34. Base Tension (Fig. A-9-1) 35. Arm assembly Idler Jog (Fig. A-9-2) 1) Release the (A) part of the base tension from the 1) Push both (B), (C) parts in Fig.
  • Page 98 DECK MECHANISM ADJUSTMENT • Fixtures and Tools for Service 1. Cassette Torque Meter 2. Alignment tape 3. Torque gauge SRK-VHT-303(Not SVC part) Part No NTSC:DTN-0001 600g.Cm ATG Part No:D00-D006 PAL:DTN-0002 Part No:D00-D002 4. Torque gauge adaptor 5. Post height adjusting driver 6.
  • Page 99 DECK MECHANISM ADJUSTMENT 1. Mechanism Assembly Mode Check Purpose of adjustment : To make tools normally operate by positioning tools accurately. Fixtures and tools used VCR (VCP) status Checking Position • Eject Mode • Blank Tape (empty tape) • Mechanism and Mode Switch (with cassette withdrawn) 1) Turn the VCR on and take the tape out by pressing the 4) Undo the screw fixing the deck and the main frame, and...
  • Page 100 DECK MECHANISM ADJUSTMENT 2. Previous Preparation for Deck Adjustment (Preparation to load the VCR (VCP) with cassette tape not inserted) 1) Take the power cord from the consent. If doing so, proceeding to the stop mode is done. In this 2) Separate the top cover and the plate assembly top.
  • Page 101 DECK MECHANISM ADJUSTMENT 4. Guide Roller Height Adjustment Purpose of adjustment : To ensure that the bottom surface of the tape can travel along with the tape lead line of the lower drum by constantly and adjusting and maintaining the height of the tape. 4-1.
  • Page 102 DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose of adjustment : To ensure that audio and control signals can be recorded and played according to the contract tract by constantly maintaining distance between tape and head, and tape tension between the P3 post and the P4 post.
  • Page 103 DECK MECHANISM ADJUSTMENT 5-2. Tape Path Check between Pinch Roller and travel it stably to ensure there is no crumbling or fold- ing of the tape. Take up Guide (Check in the Rev Mode) 1) Check the tape pass status between the pinch roller and 2) Check there is folding of the tape at the bottom or top the take-up guide.(Check there is crumpling of the tape of the take-up guide in cutting-off the REV mode...
  • Page 104 DECK MECHANISM ADJUSTMENT 7. Adjustment after Drum Assembly (Video Heads) Purpose of adjustment : To adjust and stabilize the height change, X-distance change, etc depending on the guide roller after assembling the drum. Fixtures and tools used Connection position VCR (VCP) status Adjustment position •...
  • Page 105 PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 1. Checking Points prior to Repair Following abnormal phenomena may be repaired by removal of foreign materials and oil supply. Check oiling is required at the checking set or cleaning status is complete. Determine that necessity of checking and repair the set exists after checking the using period of the set together with the user.
  • Page 106 PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 2. Essential Check and Repair 4. Tools for Check and Repair Recording density of the video is far higher than the audio. (1) Grease: Floil G-3114 (KANTO) or equivalent grease Therefore video parts are very precise so as to allow only (Green) error of 1/1000mm or so in order to maintain compatibility (2) Grease: Kanto G-754, PL-433 (Yellow)
  • Page 107 PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 5-2) Grease Applications (2) Regular Grease Application Apply grease to the designated application position (1) Grease Application Method every 500 hour. Apply grease by using a cloth swab or brush. Care must be exercised so that excess quantity should not be used.
  • Page 108 PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION Lever, F/R, Base, Tension GEAR AY, P2 & P3 PL-433 LEVER, F/R BASE, TENSION Clutch Contact Part (PL-433, Yellow) Tension Arm Party Hinge Part (PL-433, Yellow) 4-22...
  • Page 109 MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism Auto REW doesn't work. Is the supply to the END sensor END sensor "H"? “H”: more than 3.5V “L”: less than 0.7V~1V Is the Vcc. voltage of End sen- Check the syscon power. sor 5V? Replace End sensor.
  • Page 110 MECHANISM TROUBLESHOOTING GUIDE AUTO STOP. (PLAY/CUE/REV) Check aligment positions (page 4-14) Check Pinch spring. In Play/Cue/Rev is the pinch roller in contact with the cap- Is the output of DFG, DPG OK? Replace Drum Motor. stan shaft. Are there T/up and supply reel Check Servo, Syscon.
  • Page 111 MECHANISM TROUBLESHOOTING GUIDE In PB mode Tape Presence not sensed. Is the Pinch Roller attached to Check Alignment positions the Capstan Motor Shaft? (page 4-14) Does the T/Up Reel turn? Is the Belt ok? Replace the Belt. Check the clutch and the Idler Does the Capstan Motor turn? Assembly.
  • Page 112 MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism Cassette cannot be inserted. Does the Lever Assembly Is the Lever Assembly Switch Replace or add the Lever Switch work? Spring damaged or omitted? Assembly Switch Spring. Does the CST IN Switch work Replace CST IN Switch.
  • Page 113 MECHANISM TROUBLESHOOTING GUIDE Cassette will not load. Does the CST insert? Does the CST insert? Replace the Lid Opener. Does the F/L Gear Rack work? Replace the F/L Rear Rack. Does the Door Opener work? Does the F/L Arm Assembly work? Is the Door opener assembled correctly? Does the L/D Motor work? Replace the F/L Arm Assembly.
  • Page 114 EXPLODED VIEWS 1. Front Loading Mechanism Section 4-28...
  • Page 115 EXPLODED VIEWS 2. Moving Mechanism Section (1) OPTIONAL PART 4-29...
  • Page 116 EXPLODED VIEWS 3. Moving Mechanism Section (2) 4-30...
  • Page 118 SECTION 5 RS-01A LOADER PART CONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ......................5-2 THE DIFFERENCE OF DVD-R/RW, DVD+R/RW DISCS AND DVD-ROM ..........5-15 1. RECORDING LAYER ..............................5-15 2. DISC SPECIFICATION...............................5-16 3. DISC MATERIALS ..............................5-16 4. ORGANIZATION OF THE INNER DRIVE AREA, OUTER DRIVE AREA, LEAD-IN ZONE AND LEAD-OUT ZONE...............................5-20 HOW TO USE TEST TOOL ............................5-24...

  • Page 119: 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 120 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 121 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 122 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 123 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 124 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 125 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 126 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 127 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 128 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 129 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. 5-12...
  • Page 130 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 131 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 132 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 133: 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 5-16...

  • Page 134: Disc Specification

    2. DISC SPECIFICATION 3. DISC MATERIALS 1) DVD-ROM < Single Layer > < Dual Layer > 5-17...
  • Page 135 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 136 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 137 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 138: 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 139 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 140 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 141: 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 142: 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 143 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 144: 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 145: 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 146: 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 147: 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 148: 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 149: 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 150: 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 151: 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 152: 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 153 DESCRIPTION OF CIRCUIT 2. FOCUS/TRACKING/SLED SERVO CIRCUIT 2-1. FOCUS, TRACKING & SLED SERVO PROCESS 5-36...

  • Page 154: 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 5-37...

  • Page 155: 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 156 MAJOR IC INTERNAL BLOCK DIAGRAM LIC121 (AN22113A) : FEP(RF) ANALOG SIGNAL PROCESSOR • BLOCK DIAGRAM 5-39...
  • Page 157 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 5-40...

  • Page 158: Ic301 (Bd7956Fs) : Cd-Rom/Dvd-Rom 7Ch Power Driver

    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 PGND3 SLO1+ SLO1- SLO2+ SPV 2 SPRNF SLO2- SLGND...

  • Page 160: Circuit Diagrams

    CIRCUIT DIAGRAMS 1. DSP CIRCUIT DIAGRAM 5-42 5-43...

  • Page 161: Rf Circuit Diagram

    2. RF CIRCUIT DIAGRAM 5-44 5-45...

  • Page 162: Drive Circuit Diagram

    3. DRIVE CIRCUIT DIAGRAM 5-46 5-47...

  • Page 163: 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 164: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD (TOP VIEW) 5-50 5-51...

  • Page 165: Main P.c.board(Bottom View)

    2. MAIN P.C.BOARD (BOTTOM VIEW) 5-52 5-53...

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