LG RBD154 User Manual Download

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MODEL: RBD154 (RBS154V)

SERVICE MANUAL

P/NO : AFN72956676

APRIL, 2009

MODEL: RBD154 (RBS154V)

Website http://biz.lgservice.com

Internal Use Only

MICRO Hi-Fi SYSTEM

SERVICE MANUAL

Summary of Contents for RBD154

Page 1: ...MODEL RBD154 RBS154V SERVICE MANUAL P NO AFN72956676 APRIL 2009 MODEL RBD154 RBS154V Website http biz lgservice com Internal Use Only MICRO Hi Fi SYSTEM SERVICE MANUAL ...

Page 2: ...RAME SECTION 2 1 DECK MECHANISM EXPLODED VIEW DP 12AV 2 3 SPEAKER SECTION 2 5 PACKING ACCESSORY SECTION 2 6 SECTION 3 ELECTRICAL PART TROUBLESHOOTING GUIDE 3 1 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 3 17 WIRING DIAGRAM 3 21 BLOCK DIAGRAMS 3 22 CIRCUIT DIAGRAMS 3 25 CIRCUIT VOLTAGE CHART 3 51 PRINTED CIRCUIT DIARGAMS 3 55 SECTION 4 MECHANISM DP 12AV 4 1 SECTION 5 REPLACEMENT PARTS LIST ...

Page 3: ...beams may damage the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning the lens surface therefo...

Page 4: ...e replacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and grounded When removing the laser pick up from its conductive bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent...

Page 5: ...harges sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparabl...

Page 6: ...iate position and make changes with Rmc cursor number key Press Enter key FLD write ok Remote control Pause FLD E2P CLR Set stop Rmc 0 Completed NAME OPT 0 OPT 1 OPT 2 OPT 3 OPT 4 OPT 5 OPT 6 OPT 7 OPT 8 OPT 9 DETECT NEW EEPROM OPTION EDIT SCREEN HEX F9 00 B4 DD 00 11 A0 00 30 00 Factory Reset Rmc 1 3 9 7 1 3 9 enter ...

Page 7: ...e security software then download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function READ FIRMWARE WRITE 00 100 UPDATED POWER OFF AUTOMATICALLY When completed remove u...

Page 8: ...rity software then download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function READ FIRMWARE FINISH UPDATED POWER OFF AUTOMATICALLY When completed remove usb device ...

Page 9: ...aser wavelength 650 nm Tuner FM FM Tuning Range 87 5 108 0 MHz or 87 50 108 0 MHz FM Intermediate Frequency 128 kHz AM Tuning Range optional 522 1 620 kHz or 520 1 710 kHz or 520 1 710 kHz AM Intermediate Frequency 45 kHz AMPLIFIER Output Power 80 W 80 W T H D 0 5 SPEAKERS RBS154V Type 2 Way 2 Speaker Impedance 4 Ω Rated Input Power 50 W Max Input Power 100 W Net Dimensions W x H x D 165 x 316 x 1...

Page 10: ... 250 A42 A43 CABLE3 463 B F E D 463 266 277 MAIN B CABLE2 CABLE1 SMPS A47 465 465 465 274 262 465 A46 OPTIONAL PART SECTION 2 EXPLODED VIEWS CABINET AND MAIN FRAME SECTION RBD154 2 1 2 2 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 A42 ASSY INCLUDES TOUCH PCB ...

Page 11: ...2 3 2 4 DECK MECHANISM EXPLODED VIEW DP 12AV 012 010 012 037 012A 019 442 442 A02 A01 A03 001 002 003 439 018 013 017 014 020 016 440 015 015B 015A 435 026 ...

Page 12: ...2 5 655 655 651 652 653 654 A61B 656 657 654 654 658 659 662 661 A61A 660 A60 SPEAKER SECTION 1 FRONT REAR SPEAKER RBS154V ...

Page 13: ...2 6 PACKING ACCESSORY SECTION 825 FM Wire Antenna 900 Remote Control 808 Battery 801 Instruction Ass y 803 Packing 802 Box 804 Bag 811 Plug Ass y 1Way 827 Micro Phone 832 Disc ...

Page 14: ... of P9701 line NO Replace IC901 902 YES Check the DC V of C905 if DC V is over 400V NO YES Check the DC V of C909 C903 C921 If DC V is in 14 19V and it is steady Check IC901 902 YES YES Check the DC V of C981 C945 If DC V is 6 1V YES Check the DC V of C950 C951 If DC V is in 26V YES OK POWER SMPS SECTION 3 ELECTRICAL PART AUDIO ELECTRICAL TROUBLESHOOTIHG GUIDE ...

Page 15: ...02 if DC V is over 32V 1 YES OK 4 MICOM PART CHECK I OK OK NO Replace the related parts NO Check if output voltage of IC101 KIA7042 is 4 3V YES YES YES YES YES YES Check IC100 LC87F5NC8A 4pin power YES Refer to SMPS troubleshooting MICOM PART CHECK I NO Check P7904 6pin P SENS NO Check power of both terminals of IC101 KIA7042 Check if IC101 KIA7042 input is over 5V Check the related part of IC101 ...

Page 16: ...ed part Replace the related parts YES Check the working condition X101 32 768kHz X100 9 8304MHz Check P7904 5pin 5 6V YES NO Check power of both terminals of D101 RS1G YES NO Check IC102 KIA7027 3pin 4V Check the related part MICOM PART CHECK II NO NO Replace the related parts Check IC102 1pin high NO Check output power of IC101 KIA7042 is over 4 3V YES OK YES OK ...

Page 17: ...03 S 24CS16A01 PART CHECK YES YES YES YES 93pin DATA 94pin CLK Check the related part NO Check MICOM power 5V CHECK IC100 LC87F5NC8A 93 94 PIN NO Replace the related parts NO Refer to micom troubleshooting OK OK ...

Page 18: ...1 PT6302 power 48pin VKK 32V 57pin 5V IC100 check IC301 data communication pin pin 26pin 55pin DO 28pin 54pin CLK 27pin 53pin STB 5pin 52pin RST OK OK NO Replace the related part Check P7904 assembly YES YES Check power of each pin OK NO NO NO NO Replace the related part IC100 27pin STB 28pin CLK check data output Check 26 PIN DO DATA input YES YES Check the related part NO Replace the related par...

Page 19: ...305 13pin 11pin IC100 96pin CLK 95pin DATA TOUCH PAD CHECK YES OK YES OK YES OK 9 PWM MODULATION PART CHECK Check P7905 9 10pin 3 3V PWM MODULATION PART CHECK Refer to SMPS troubleshooting NO Check if X701 12 288MHz is working YES YES YES YES Check IC604 PS9831 VDD pin power 4 10 22 29 39 47 56 65 72 87 94 check X601 2pin 3 3V Replace the related part NO YES Check the related part of X701 OK NO ...

Page 20: ...74 FR 71 70 OK Replace the related part NO Check resistance output of line DATA R103 CLK R141 RST R152 Refer to DVD troubleshooting NO Check DVD ASS Y PS9831 communication condition P7403 YES OK Check IC604 PS9831 part Check resistance output of each line NO Check IC604 PS9831 data input OK YES YES YES Check IC604 PS9831 86pin CLK input Replace the related part NO Check R666 1M output YES OK NO ...

Page 21: ...k resistance power IC700 R702 701 726 727 724 NO YES Check input power of IC700 1 44 23 22 21pin 12V Replace the related parts NO YES Check output line coil POWER AMP PART CHECK OK YES Check input power IC700 41 35 32 26pin YES Check PWM modulator input 23 26pin YES Check POWER IC700 34 29pin output ...

Page 22: ...YES Check TUNER module power check 4pin 9V NO Check TUNER module TU100 is working Replace the related parts NO YES Check IC300 CS5346 41pin output waveform TUNER FUNCTION PART CHECK OK YES Check IC300 CS5346 23 24pin input waveform YES ...

Page 23: ... YES YES Does DVD appear at FLD Does no disc or time are appeared at FLD Check connector P7904 P7905 NO NO Does it appear DVD error at FLD POWER ON NO Check an Audio micom Select the DVD mode YES Reconnect YES Check DVD MD module Check the voltage of each pin on P7905 9 10pin OK ...

Page 24: ...RAM works properly Check the related circuit of ES8391 IC501 pin163 183 145 132 120 NO YES ES8391 VIDEO outputs properly NO Check the MD mecha NO Check the cable connection between main pcb and MD MECHA Does tray move inside when it is closed position YES YES OPEN_SW CLOSE_ SW signals on P405 are ok Check the output signal of ES8391 to IC401 for control OPEN CLOSE NO YES OPEN CLOSE signals on IC40...

Page 25: ...inner side when it is at outer position YES YES YES SLED signal is ok Check the MD NO YES Motor driver DRV_MMUTE pin high 3 A NO Check Focus connection on ES8391 and motor driver IC NO Check cable connection with pick up head Optical lens is moving for searching focus YES YES Proper Focus outputs to motor driver Check the motor driver IC401 NO YES Proper F F outputs B ...

Page 26: ...CDLD output properly Check the related circuit of laser power transistor NO YES Collector voltage of power transistor is ok Q405 Q406 Put disc in tray B NO Check the SPINDLE related circuit on ES8391 NO Check the cable connection between P401 and MD Does spindle rotate YES YES YES Proper spindle signal on ES8391 Check the SPINDLE control of motor driver IC401 NO SPIN SPIN output properly C Laser o...

Page 27: ... C D from MD Check the related circuit of ES8391 focus signal NO YES Proper FOD signal on IC401 NO Check the related circuit between IC401 and ES8391 NO Check cable connection on pick up head Tracking ok YES YES YES Proper TRD signal on IC401 Check the tracking control on motor driver IC401 NO T T output properly Check RF signal waveform NO Disc play C D ...

Page 28: ...91 NO YES Check the main pcb All outputs are ok during playing disk YES YES Audio signal data on P8391 is ok For example composite video check the video mute TR Q506 ES8391 video signal data NO Picture signal data on ES8391 is ok D TEST END NO ...

Page 29: ...gnal Check the HRST signal check the usb part and dvd part line Searching or USB display check YES YES YES Check the usb jack power supply Check CN201 NO Check the usb data line CN201 Reading ok check YES YES YES Check the ES8391 check data line pin111 USB No 110 USB Po TURN ON USB OK ...

Page 30: ...VEFORMS ON SYSTEM TEST AND DEBUGGING 1 WHEN POWER ON RESET DATA ETC WAVEFORM SPI DI SPI DO SPDIF OUT SPI CS3 1 2 3 4 HRST 5V USB_N1 USB_P1 5 6 IC501 pin 56 IC501 pin 57 IC501 pin 59 IC503 pin 1 IC501 pin 111 IC501 pin 110 ...

Page 31: ...3 STARTING ACTION WAVEFORM IN MD DEVICE 4 FOCUS WAVEFORM AT CD Open Open_sw Close_sw Close 7 8 9 10 SL Driver STBY SLEGN SL 11 12 F F 13 14 IC401 pin 11 IC401 pin 18 IC401 pin 3 IC401 pin 17 IC401 pin 4 IC501 pin 60 IC501 pin 63 IC401 pin 10 ...

Page 32: ...T DVD 6 AT POWER ON SPINDLE SIGNAL AT MD DECK Q405 DVD_LD Q406 CD_LD 15 16 SPINDELD SPIN SPIN 17 18 19 Q405 Q406 IC401 pin 21 IC401 pin 15 IC401 pin 16 7 TRACKING SIGNAL TRD Tr Tr 20 21 22 IC401 pin 7 IC401 pin 2 IC401 pin 1 ...

Page 33: ...3 20 8 RF WAVEFORM 9 DISK TYPE JUGEMENT WAVEFORM DVD F FDO SVREF 23 24 25 IC401 pin 3 IC401 pin 6 IC401 pin 23 CD F FDO SVREF 26 27 28 IC401 pin 3 IC401 pin 6 IC401 pin 23 ...

Page 34: ...3 21 WIRING DIAGRAM DVD MAIN PCB TUNER MODULE 1PAGE MD 29P USB MIC FRONT PCB SMPS PCB Portable 15P USB PCB H P SCART PCB 12P 9P 23P TOUCH PCB 11P 3P 11P 18P MIC PCB SPEAKER JACK VIDEO JACK HDMI JACK 8P ...

Page 35: ...0 15 Coaxial Audio Out TAS5342DDV_ L 80W X 2ch RR LC87F5NC8A AUDIO MICOM MIC S4308_1 c OPAMP ALC USB D D MIC SIG VFD PT6302 FLT DRIVER FR MM1692 Y G Pb B Pr R CVBS Composite Video out Component out RCA Type Scart AV Out HDMI Out ES7108 VFD DO DI RST DATA 9831 PWM 9831 PWM 12 288MHZ CS5346 ADC 0_PWM DSP_CLK 0_PWM_DSP_DAT S 24CS16A01 EEPROM I_DSP_BSY I_DSP_IBO FL FR EEPROM DATA CLK H P MC4580 OPAMP ...

Page 36: ... Rectification Smoothing circuit T R A N S 1 AMP Switch IC 1 MAIN Switch IC 2 T R A N S 2 FL1 FL2 4 5V 12V 12V 78R12 5V P SENS FEED BACK 6 1V KIA278R05 P9702 P9701 FEED BACK AMP 35 5V 3 5V 278R35 31 5V VKK 2 SMPS BLOCK DIAGRAM ...

Page 37: ...3 24 ...

Page 38: ...IGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED THIS WAY IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES I...

Page 39: ...2 MICOM CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MICOM RBD154 EBY58534601_1 2009 02 13 3 27 3 28 ...

Page 40: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T DSP PWM RBD154 EBY58534601_2 2009 02 13 3 DSP PWM CIRCUIT DIAGRAM 3 29 5 30 ...

Page 41: ...4 AMP CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T AMP RBD154 EBY58534601_3 2009 02 13 3 31 3 32 ...

Page 42: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MPEG RBD154 EBY58534601_4 2009 02 13 2 1 3 4 8 9 6 5 WAVEFORM 5 MPEG CIRCUIT DIAGRAM 3 33 3 34 ...

Page 43: ...1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T SERVO RBD154 EBY58534601_5 2009 02 13 7 10 13 23 26 20 14 24 27 21 22 11 19 17 25 28 12 18 15 16 WAVEFORM 6 SERVO CIRCUIT DIAGRAM 3 35 3 36 ...

Page 44: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T I O RBD154 EBY58534601_6 2009 02 13 7 I O CIRCUIT DIAGRAM 3 37 3 38 ...

Page 45: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T HDMI RBD154 EBY58534601_7 2009 02 13 8 HDMI CIRCUIT DIAGRAM 3 39 3 40 ...

Page 46: ...A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T FRONT RBD154 EBY58534701 2009 02 13 9 FRONT CIRCUIT DIAGRAM 3 41 3 42 ...

Page 47: ...10 KARAOKE USB CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T KARAOKE USB RBD154 EBY58535901 2009 02 13 3 43 3 44 ...

Page 48: ...11 MIC HEAD PHONE PORTABLE CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MIC HEAD PHONE PORTABLE RBD154 EBY58536101 2009 02 13 3 45 3 46 ...

Page 49: ...12 SCART CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T SCART RBD154 EBY58536201 2009 02 13 3 47 3 48 ...

Page 50: ...13 TOUCH KEY CIRCUIT DIAGRAM A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T TOUCH KEY RBD154 EBY58536301 2009 02 13 3 49 3 50 ...

Page 51: ...8 0 19 4 73 20 0 21 2 44 22 2 44 23 2 44 24 2 44 25 0 26 2 44 27 2 44 PIN VOLT 28 0 77 29 0 75 30 0 73 31 0 43 32 0 33 0 34 0 35 0 43 36 3 31 37 0 38 0 39 0 40 0 41 3 31 42 4 91 43 3 31 IC401 IP9010 1 0 03 2 0 03 3 0 03 4 0 03 5 4 93 6 1 65 7 1 65 8 0 06 9 3 3 10 0 11 0 12 4 93 13 0 05 14 0 05 15 0 19 16 0 19 17 0 02 18 0 02 19 4 93 20 1 65 21 1 64 22 0 PIN VOLT 23 1 64 24 0 25 2 95 26 1 26 27 2 0...

Page 52: ...09 1 2 210 3 42 211 1 2 212 1 2 213 1 2 214 1 2 215 1 2 216 1 2 IC503 SST25VF016B 1 3 11 2 0 8 3 3 34 4 0 5 0 42 6 3 2 7 3 34 8 3 35 IC504 KS24C021CS 1 0 PIN VOLT 2 0 3 0 4 0 5 3 06 6 3 06 7 0 8 3 35 IC505 74LV132PW 1 3 24 2 3 24 3 0 1 4 0 1 5 0 1 6 3 24 7 0 8 3 31 9 0 86 10 1 16 11 3 34 12 1 13 13 1 12 14 3 35 IC805 ES7108 1 0 84 2 0 3 0 4 1 81 5 1 19 6 1 6 7 0 49 8 0 46 9 0 41 10 1 67 11 1 67 12...

Page 53: ...PRINTED CIRCUIT BOARD DIARGAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW 3 55 3 56 ...

Page 54: ...MAIN P C BOARD DIAGRAM BOTTOM VIEW 3 57 3 58 ...

Page 55: ...NOTE Warning Parts that are shaded are critical With respect to risk of fire or electrical shock 2 SMPS P C BOARD DIAGRAM 3 59 3 60 ...

Page 56: ...3 FRONT P C BOARD DIAGRAM 3 61 3 62 ...

Page 57: ...4 TOUCH PAD P C BOARD DIAGRAM TOP VIEW 6 SCART P C BOARD DIAGRAM TOP VIEW TOUCH PAD P C BOARD DIAGRAM BOTTOM VIEW 3 63 3 64 5 USB MIC P C BOARD DIAGRAM SCART P C BOARD DIAGRAM BOTTOM VIEW ...

Page 58: ...isc 4 3 1 1 1 Plate Clamp 4 3 1 1 2 Magnet Clamp 4 3 1 1 3 Clamp Upper 4 3 2 Tray Disc 4 3 3 Base Assembly Sled 4 4 3 1 Gear Feed 4 4 3 2 Gear Middle 4 4 3 3 Gear Rack 4 4 4 Rubber Rear 4 4 5 Frame Assembly Up Down 4 5 6 Belt Loading 4 5 7 Gear Pulley 4 5 8 Gear Loading 4 5 9 Guide Up Down 4 5 10 PWB Assembly Loading 4 5 11 Base Main 4 5 EXPLODED VIEW 1 DECK MECHANISM EXPLODED VIEW DP 12AV 4 6 ...

Page 59: ...mbly Up Down Belt Loading Gear Pulley Gear Loading Guide Up Down PWB Assembly Loading Base Main 4 Screws 1 Connector 1 Locking Tabs 1 Screw 1 Screw 1 Locking Tab 1 Locking Tab 1 Locking Tab 1 Hook 2 Screw 2 Locking Tabs 4 1 4 1 4 1 4 1 4 1 4 2 4 3 4 3 4 3 4 3 4 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Bottom Bottom Procedure Parts Fixing Type Fig ure Disasse mbly Note When reassembling perform the procedure ...

Page 60: ...e Plate Clamp 1 1 2 Magnet Clamp 1 1 3 Clamp Upper 2 Tray Disc Fig 4 2 1 Insert and push a Driver in the emergency eject hole A at the right side or put the Driver on the Lever B of the Gear Emergency and pull the Lever B in direction of arrow so that the Tray Disc is ejected about 15 20mm 2 Pull the Tray Disc until it is separated from the Base Main completely MAIN BASE TRAY DISC BASE MAIN LEVER ...

Page 61: ...ar Middle 3 3 Gear Rack 1 Release the Scerw S3 4 Rubber Rear Fig 4 3 BASE PU RUBBER DAMPER RUBBER DAMPER RUBBER DAMPER Distinguish upper and lower sides Assemble with care Distinguish upper and lower sides Assemble with care RUBBER DAMPER GEAR RACK GENERAL PICK UP ASSEMBLY SPINDLE MOTOR ASSEMBLY Fig 4 3 S2 S2 ...

Page 62: ...9 GUIDE UP DOWN FIG 4 4 1 Move the Guide Up Down in direction of arrow A as Fig A 2 Push the Locking Tab L5 down and then lift up the Guide Up Down to separate it from the Base Main Note When reassembling place the Guide Up Down as Fig C and move it in direction arrow B until it is locked by the Locking Tab L5 And confirm the Guide Up Down as Fig A 10 PWB Assembly Loading Fig 4 4 Note Put the Base...

Page 63: ...4 6 DECK MECHANISM EXPLODED VIEW DP 12AV 012 010 012 037 012A 019 442 442 A02 A01 A03 001 002 003 439 018 013 017 014 020 016 440 015 015B 015A 435 026 ...

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LG RBD154, Service Manual

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