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LG RH265 Service Manual

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Internal Use Only
Website http://biz.lgservice.com
HDD/DVD RECORDER
SERVICE MANUAL
MODEL: RH265/RH266
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
SEP, 2007
P/NO : AFN35914202

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  Summary of Contents for LG RH265

  • Page 1 Internal Use Only Website http://biz.lgservice.com HDD/DVD RECORDER SERVICE MANUAL MODEL: RH265/RH266 CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. SEP, 2007 P/NO : AFN35914202...
  • Page 2 CONTENTS SECTION 1..SUMMARY SECTION 2..CABINET & MAIN CHASSIS SECTION 3..ELECTRICAL SECTION 4..REPLACEMENT PARTS LIST Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3: Table Of Contents

    MV3 AUTOMATIC LIGHT ADJUSTMENT PROCESS ..............1-5 SERVICE INFORMATION FOR EEPROM IC SETTING ..............1-6 UPGRADE THE MAIN & LOADER PROGRAM .................1-7 SPECIFICATIONS ............................1-8 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 4: Product Safety Servicing Guidelines For Hdd/Dvd Recorder Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG 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

    Note 1: Accessible Conductive Parts include Metal panels, electricity sufficient to damage an ES device.) Input terminals, Earphone jacks,etc. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 6: Mv3 Automatic Light Adjustment Process

    6) If you select YES, GUI disappears and normal operation begins. NOTE : Power setting should be performed without Disc. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7: Service Information For Eeprom Ic Setting

    7. To exit from the option code menu without initializing the system, just turn off the power and then turn on again. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 8: Upgrade The Main & Loader Program

    Reboot the Set * OPTIONAL PARTS 1) MAIN ONLY B_E UPGRADE 2) LOADER ONLY LOADER UPGRADE 3) ALL B_E & LOADER UPGRADE Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9: Specifications

    0.5V (p-p), 75Ω, RCA jack x 1 Audio output (analog audio) 2.0Vrms (1kHz, 0dB), 600Ω, RCA jack (L, R) x 1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 10 CONTENTS EXPLODED VIEWS .............................2-2 1. CABINET AND MAIN FRAME SECTION ....................2-2 2. DECK MECHANISM SECTION ........................2-3 3. PACKING ACCESSORY SECTION......................2-4 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11: Exploded Views

    Key board is array coming timer board. Purchase order board separately supply incomprehensible. Supply is possible in Location No A50 state in exploded views. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 12: Deck Mechanism Section

    2. DECK MECHANISM SECTION [MV3(DR-10A 815): NEW] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13: Packing Accessory Section

    Plug Ass'y, 1Way (BLACK) 808 Battery Plug Ass'y, 1Way (YELLOW) Remote Control Plug Ass'y, 2Way Instruction Ass'y FLAT CABLE Packing Packing 832 DISC LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 14 1. MAIN P.C.BOARD ..........................3-63 2. I/O P.C.BOARD ............................3-67 3. POWER P.C.BOARD ...........................3-71 4. TIMER & KEY P.C.BOARD ........................3-73 5. HDD JUNCTION P.C.BOARD ......................3-74 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15: Vdr Part

    Is the D127 normal? Replace the D127 Is the D126 normal? Replace the D126 Power Line of Main PCB is short LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 IC156 pin1? Check the DVD CTRL ‘H’ Is the IC156 pin4 “H”? signal from µ-com Check or Replace the IC156 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17: Power Supply On I/O Board

    Is there Check the “TIMER_H” about 5V at R181 and 0.7V at signal from µ-COM Q155 Base? Check Q152 and Replace LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 Is there Check the “TIMER H” about 5V at R180 and 0.7V at signal from µ-COM Q152 Base? Check Q152 and Replace Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 Check the “PWR CTL H” about 4V ~ 5V at the IC151 signal from µ-COM pin4? Check the IC151 and Replace LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 Q158 Emiter? Check the “STANBY H” Is there about 0V signal from µ-COM at R179 and R156? Check Q158 and Replace Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21: System Circuit Part

    4. DISC NOT RECOGNIZED DISC not recognized Check Driver Power? Check SMPS 5V, 12V Check Connector Change MEDIA TEST Check MECHA LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22: When Playing Disc, No Audio Output

    Is there a signal? (SCL,SDA) : L806, L826, L825, L810 : Is there a signal? Check Cable connections & TV Audio mute. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23: No Optical/Digital Output

    Check IC901 Power pin9,10,11,12 : Is there a Replace IC901 3.3V & 5V signal? Check Cable connections between Main & I_O LGE Internal Use Only 3-10 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24: No Rgb/Component Video Signal When Play Disc

    IC801 pin19, 21, 22 : pin31, 32 (SCL, SDA) : Is there a signal? Replace IC801 Check condition RGB_Sel_Out & YPbPr_Mute_L Check Cable Connection Copyright © 2007 LG Electronics. Inc. All right reserved. 3-11 LGE Internal Use Only Only for training and service purposes...
  • Page 25 MEMO LGE Internal Use Only 3-12 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26: Wiring Diagram

    Scart S Video SMPS I/O Board 4PIN 15PIN MD + MAIN 30 Pin 16Pin 40 Pin POWER Timer BUTTON Copyright © 2007 LG Electronics. Inc. All right reserved. 3-13 3-14 LGE Internal Use Only Only for training and service purposes...
  • Page 27: Block Diagrams

    BLOCK DIAGRAMS 1. POWER 1 BLOCK DIAGRAM LGE Internal Use Only 3-15 3-16 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28: Power 2 Block Diagram

    2. POWER 2 BLOCK DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-17 3-18 LGE Internal Use Only Only for training and service purposes...
  • Page 29: Reset/If/Clock Block Diagram

    3. RESET/IF/CLOCK BLOCK DIAGRAM LGE Internal Use Only 3-19 3-20 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30: Av Digital Data/Add Signal Block Diagram

    4. AV DIGITAL DATA/ADD SIGNAL BLOCK DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-21 3-22 LGE Internal Use Only Only for training and service purposes...
  • Page 31: Rf(Front End) & Option Signal Block Diagram

    5. RF(FRONT END) & OPTION SIGNAL BLOCK DIAGRAM LGE Internal Use Only 3-23 3-24 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32: Av Analog Signal Block Diagram

    6. AV ANALOG SIGNAL BLOCK DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-25 3-26 LGE Internal Use Only Only for training and service purposes...
  • Page 33: Circuit Diagrams

    D125 is Defective 5V No Power IC155 is Defective 5V No Power IC156 is Defective Switching Error IC102,IC103 are Defective LGE Internal Use Only 3-27 3-28 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34: Ddr I/F Circuit Diagram

    2. DDR I/F CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-29 3-30 LGE Internal Use Only Only for training and service purposes...
  • Page 35: Host I/F Circuit Diagram

    3. HOST I/F CIRCUIT DIAGRAM LGE Internal Use Only 3-31 3-32 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36: Video I/F Circuit Diagram

    4. VIDEO I/F CIRCUIT DIAGRAM WAVEFORMS IC101_CLK54OUT Copyright © 2007 LG Electronics. Inc. All right reserved. 3-33 3-34 LGE Internal Use Only Only for training and service purposes...
  • Page 37: Atapi Circuit Diagram

    5. ATAPI CIRCUIT DIAGRAM LGE Internal Use Only 3-35 3-36 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38: I/O I/F & Audio Circuit Diagram

    6. I/O I/F & AUDIO CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-37 3-38 LGE Internal Use Only Only for training and service purposes...
  • Page 39: F-End & Power Circuit Diagram

    7. F-END & POWER CIRCUIT DIAGRAM LGE Internal Use Only 3-39 3-40 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40: Rf & Motor Circuit Diagram

    8. RF & MOTOR CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-41 3-42 LGE Internal Use Only Only for training and service purposes...
  • Page 41: Gnd & Power Circuit Diagram

    9. GND & POWER CIRCUIT DIAGRAM LGE Internal Use Only 3-43 3-44 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42: Mv3 Dr Timer Circuit Diagram

    10. MV3 DR TIMER CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-45 3-46 LGE Internal Use Only Only for training and service purposes...
  • Page 43: I/O Μ-Com Circuit Diagram

    11. I/O µ-COM CIRCUIT DIAGRAM WAVEFORMS IC701_HOST_CLK_IN IC701_HOST_DATA_IN IC701_HOST_DATA_OUT IC701_IIC_CLK IC701_IIC_DATA IC701_X702_OSCI LGE Internal Use Only 3-47 3-48 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44: Tuner/Mpx/Adc/Dac/Jack Circuit Diagram

    12. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM 17 19 21 20 WAVEFORMS JK801_B_OUT JK801_G_OUT JK801_PB_OUT JK801_PR_OUT JK801_R_OUT JK801_Y_OUT JK802_COAXIAL_OUT Copyright © 2007 LG Electronics. Inc. All right reserved. 3-49 3-50 LGE Internal Use Only Only for training and service purposes...
  • Page 45: Audio Adc/Sw/Dac Circuit Diagram

    13. AUDIO ADC/SW/DAC CIRCUIT DIAGRAM WAVEFORMS IC901_AIN_DO IC901_AIN_FSYNC IC901_AIN_MCLKOUT IC901_AIN_SCLK IC903_AOUT_DO IC903_AOUT_FSYNS IC903_AOUT_MCLK IC903_AOUT_SCLK LGE Internal Use Only 3-51 3-52 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46: Smps Circuit Diagram

    14. SMPS CIRCUIT DIAGRAM Copyright © 2007 LG Electronics. Inc. All right reserved. 3-53 3-54 LGE Internal Use Only Only for training and service purposes...
  • Page 47: Hdd Junction Circuit Diagram

    15. HDD JUNCTION CIRCUIT DIAGRAM LGE Internal Use Only 3-55 3-56 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48: Circuit Voltage Chart

    51.8mV 44.9mV 3.24 3.24 41.8mV 2.57 2.58 43.1mV 50.3mV 53.6mV 39.8mV 1.18 1.17 44.6mV 1.98 1.91 47.2mV 51.3mV 52.9mV Copyright © 2007 LG Electronics. Inc. All right reserved. 3-57 3-58 LGE Internal Use Only Only for training and service purposes...
  • Page 49 8.94 44.9mV 210mV 225mV 46.2mV 2.17 2.19 18.0mV 105mV 94mV 64.3mV 2.12 2.16 48.2mV 971mV 1.01 19.2mV 116mV 96.3mV LGE Internal Use Only 3-59 3-60 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 43.1mV 1.35 1.22 C932 100uF/16V 4.97 4.98 4.98 44.9mV 56.4mV 59.3mV 43.7mV 54.9mV 54.0mV C933 22uF/16V 5.94 5.88 5.89 Copyright © 2007 LG Electronics. Inc. All right reserved. 3-61 3-62 LGE Internal Use Only Only for training and service purposes...
  • Page 51: Printed Circuit Diagrams

    PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD (TOP VIEW) LGE Internal Use Only 3-63 3-64 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 MAIN P.C.BOARD (BOTTOM VIEW) Copyright © 2007 LG Electronics. Inc. All right reserved. 3-65 3-66 LGE Internal Use Only Only for training and service purposes...
  • Page 53: I/O P.c.board

    2. I/O P.C.BOARD (TOP VIEW) LGE Internal Use Only 3-67 3-68 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 54 I/O P.C.BOARD (BOTTOM VIEW) Copyright © 2007 LG Electronics. Inc. All right reserved. 3-69 3-70 LGE Internal Use Only Only for training and service purposes...
  • Page 55: Power P.c.board

    3. POWER P.C.BOARD (TOP VIEW) (BOTTOM VIEW) LGE Internal Use Only 3-71 3-72 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56: Timer & Key P.c.board

    4. TIMER & KEY P.C.BOARD 5. HDD JUNCTION P.C.BOARD (TOP VIEW) (BOTTOM VIEW) (TOP VIEW) (BOTTOM VIEW) Copyright © 2007 LG Electronics. Inc. All right reserved. 3-73 3-74 LGE Internal Use Only Only for training and service purposes...
  • Page 57 MEMO MEMO LGE Internal Use Only 3-75 3-76 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

This manual is also suitable for:

Rh266