Zenith D52WLCD Series Service Manual
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Zenith D52WLCD Series Service Manual

Zenith rear projection lcd service manual
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SERVICE MANUAL
Product Type:
Chassis:
Manual Part #: 923-03485R1
Manual Series: PV154
Model Line:
Product Year:
REVISED EDITION
First revison - Training material added
Printed in U.S.A.
Rear Projection LCD
094A
E
2002
CONTENTS
General Info ................................................. 1
Service Menu ................................................ 2
Servicing ..................................................... 3
Parts List ..................................................... 4
Diagrams ...................................................... 5
Schematics ................................................... 6
Published July 2003
by Technical Publications
LG Electronics of Alabama, Inc.
201 James Record Road
Huntsville, Alabama 35824-1513
©
Copyright
2003 LG Electronics Corporation
Model Series:
D52WLCD
D52WLCD4

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Summary of Contents for Zenith D52WLCD Series

  • Page 1 SERVICE MANUAL Model Series: Product Type: Rear Projection LCD D52WLCD Chassis: 094A D52WLCD4 Manual Part #: 923-03485R1 Manual Series: PV154 Model Line: Product Year: 2002 REVISED EDITION First revison - Training material added CONTENTS General Info ..........1 Service Menu ..........2 Servicing .............

  • Page 2: Servicing

    When servicing this product, under no circumstances should the original design be modified or altered without permission from Zenith Electronics Avoid conditions of high humidity such as: outdoor patio installations Corporation. All components should be replaced only with types identical to...

  • Page 3: Table Of Contents

    LCD DRIVER CIRCUIT - RED ......60 LCD DRIVER CIRCUIT - BLUE ......61 I/O SWITCH CIRCUIT ........62 KEYBOARD & LED CIRCUIT ......63 POWER SUPPLY CIRCUIT ........ 64 TUNER CIRCUIT 1/2 ........65 TUNER CIRCUIT 2/2 ........66 D52WLCD OVERVIEW...
  • Page 5 UHF: 14 - 69 CATV: 1 - 125 Antenna 75 ohm external terminal for VHF/UHF Screen Size 52” Width Supplied accessories Remote control, batteries 2 size AA (Alkaline battery) Screen Aspect Ratio 16 x 9 LCD Panel Size 0.87 inch D52WLCD OVERVIEW...

  • Page 6: Overview

    Green (flashing) The lamp cover is not closed. Orange The projection TV is overheating. Temperature Indicator The projection TV shut down due to overheating. Red (flashing) The projection TV shut down, check the cooling fan. D52WLCD OVERVIEW...
  • Page 7 PIP Display MONO This display appears when PIP is active. Ch.6 AM 03:00 Time Mute Appears when Appears pressing the when sound enter button on Volume is muted. remote control. Volume level is displayed while adjusting the sound. D52WLCD OVERVIEW...
  • Page 8 OVERVIEW Front Panel Controls Power On / Off Menu Enter (Same as ENTER button on your remote control) VOLUME UP / DOWN CHANNEL UP / DOWN Operation indicator. Lamp indicator. Temperature indicator. power menu enter D52WLCD OVERVIEW...

  • Page 9: Remote Control Descriptions

    Scrolls the Surf channel information banner is displayed. list. exit Not functional EXIT Clears all on-screen dis- plays and returns to TV skip record stop viewing from any menu. pause rew play D52WLCD OVERVIEW...

  • Page 10: Remote Control

    SKIP record stop skip Functions as a song selec- RECORD, PAUSE, REW, tor in audio mode and a FFWD, PLAY, STOP pause rew play movie chapter selector in Control the functions on your VCR. aux/DVD mode. D52WLCD OVERVIEW...

  • Page 11: Remote Codes

    001 072 073 009 034 056 SEARS 004 007 015 095 103 157 073 074 091 004 006 062 028 030 057 ZONDA 116 130 144 082 094 101 155 160 161 015 025 116 143 160 006 007 016 D52WLCD OVERVIEW...
  • Page 12 JCPENNY 012 013 015 PORTLAND 034 101 033 040 066 PULSAR THOMAS QUARTZ 011 014 JENSEN QUASAR 033 066 075 TOSHIBA 008 013 042 012 031 033 047 059 082 043 048 050 013 020 033 112 131 D52WLCD OVERVIEW...
  • Page 13 019 008 005 006 MARANTZ PROCEED YAMAHA 009 018 GOLDSTAR 010 016 025 MITSUBISHI PROSCAN 005 006 ZENITH 010 016 025 HARMAN KARDON 005 006 ONKYO 008 017 SAMSUNG 011 015 001 010 016 PANASONIC 003 009 SONY D52WLCD OVERVIEW...
  • Page 14 PRUCER TOSHIBA HAMLIN 049 050 055 011 048 071 UNIKA 007 014 024 HITACHI 052 055 072 073 074 UNITED CABLE 004 053 HOSPITALITY 070 077 PULSAR UNIVERSAL 005 007 014 JERROLD 002 003 004 024 026 027 D52WLCD OVERVIEW...

  • Page 15: Theory

    Blue Reflection 1st Illumination Lens PBS Array 2nd Fly-eye LCD (Green) Lens Dichroic Green Lens Blue 1st Fly-eye (DGL 60) C-Lens 1 Lens Mirror 4 Blue Reflection Lamp Mirror 1 Mirror 3 Dichroic Red Reflection Dichroic Blue Transmission D52WLCD OVERVIEW...
  • Page 16 Dichroic mirrors are used to separate the light into red, green, and blue. A Dichroic mirror allows a certain wavelength of light to pass through while refecting another. Dichroic Red Reflection: Reflects red light and allows all other colors to pass through. Dichroic Blue Transmission: Allows blue light to pass through and reflects others. D52WLCD OVERVIEW...
  • Page 17 Black Stripe layer. Black Stripe: Improves contrast by blocking outside light. Diffusion Plate: Improves viewing angle by diffusing the light. Hard Coat: Protects the screen surface and helps improve contrast. Hard Coat Anti-Static ENTICULAR RESNEL CREEN D52WLCD OVERVIEW...

  • Page 18: Liquid Crystals

    TFT Element Polarizer Pixel Electrode Color Filter (Transparent) Transistor Common Electrode Gate Line Data Line Liquid Crystal Pixel Electrode Polarizer Source Gate Drain Semi-conductor Insulator Glass Panel LIQUID CRYSTAL PANEL CROSS-SECTION THIN FILM TRANSISITOR D52WLCD OVERVIEW...

  • Page 19: Terminology

    LCD can display the video (especially with video games). The response time of new LCDs isn't a factor for most uses, but older models can display noticeable ghosting due to slower response times. D52WLCD OVERVIEW...

  • Page 20: Circuit Descriptions

    The desired inputs can be independently assigned to each output (in the audio system, the left and right channels are processed as one unit) by I 2 C bus control. However, the same input is assigned to both the video and audio system output 3. D52WLCD CIRCUITS...

  • Page 21: Block Diagrams

    CIRCUIT DESCRIPTIONS (4) Block Diagram D52WLCD CIRCUITS...
  • Page 22 Y = 0.3R + 0.59G + 0.11B Cb = 0.564 (–0.3R – 0.59G + 0.89B) The SYNC counter block counts the frequency of the input H Cr = 0.713 (0.7R – 0.59G – 0.11B) and V sync signals. D52WLCD CIRCUITS...
  • Page 23 Green so that the clamp pulse does not overlap the video interval to prevent clamping error. Count value ([DEC] $ [HEX]) = fH # 5ms V sync signal fV [kHz] Count value [HEX] Count value ([DEC] $ [HEX]) = 1/(fV # 32ns) D52WLCD CIRCUITS...
  • Page 24 CIRCUIT DESCRIPTIONS (4) Block Diagram D52WLCD CIRCUITS...
  • Page 25 The high-pass filters formed by the coupling capacitors at pins ANA_IN1+ and ANA_IN2+. 2) Demodulator: Standards and Features The MSP 3440G is able to demodulate all TV-sound stan- dards worldwide including the digital NICAM system. D52WLCD CIRCUITS...
  • Page 26 CIRCUIT DESCRIPTIONS (3) Block Diagram Fig Signal flow block diagram of the MSP 3440G(input and output names correspond to pin names) D52WLCD CIRCUITS...
  • Page 27 29.97, 30 Output 720 X 480 16 : 9 Progressive 23.98, 24, 29.97, 30, 59.94, 60 4 : 3 Interlaced 29.97, 30 640 X 480 4 : 3 Progressive 23.98, 24, 29.97, 30, 59.94, 60 Interlaced 29.97, 30 D52WLCD CIRCUITS...
  • Page 28 480P, 480I, Host I/F Host I/F Generator Generator VGA) 4 MB or 8MB SDRAM 8 M mode 4 M mode 8MB Memory : 8.389MB 4MB Memory : 4.419MB Graphic Memory : 1.503MB Graphic Memory : 0.526MB (>540x1920x1=1.037MB) (>540x960x1=0.518MB) D52WLCD CIRCUITS...
  • Page 29 • Active image generation using external input offset value • Noise reduction : Luminance/chrominance - Adaptive mean filter - Horizontal : 9 tap • Histogram Calculation • Caption decoding for NTSC input • CGMS decoding for HD/480P input D52WLCD CIRCUITS...

  • Page 30: Block Diagrams

    BLOCK DIAGRAMS BLOCK DIAGRAMS D52WLCD DIAGRAMS...
  • Page 31 BLOCK DIAGRAMS D52WLCD DIAGRAMS...
  • Page 32 BLOCK DIAGRAMS D52WLCD DIAGRAMS...
  • Page 33 BLOCK DIAGRAMS D52WLCD DIAGRAMS...

  • Page 34: Disassembly

    Using the customer’s remote control, press and hold the menu button. When the OSD menu disappears, press numbers 9, 8, 7, 6 and press the OK button to enter the ADJ mode. The display will show “Lamp Life Time XX Hrs”. D52WLCD DISASSEMBLY...

  • Page 35: Cabinet Disassembly

    5. Once the screws are removed, carefully pull the screen a short distance away from the cabinet. 6. Remove the speaker and connections. 7. Now the screen can be removed. D52WLCD DISASSEMBLY...
  • Page 36 12. Remove the metal support bracket that is mounted around the lens. 13. Remove the screws along the sides and across the top. 14. Lift up and back slightly to remove the cover to gain access to electrical components of the TV. D52WLCD DISASSEMBLY...

  • Page 37: Electrical Disassembly

    6. Remove the bottom of the cage and that will provide access to the Optics Engine. 7. Before removing the optics engine, use hot glue below the control knobs to lock them in place. This will help prevent the keystone and tilt settings from changing. D52WLCD DISASSEMBLY...

  • Page 38: Adjustments

    (Input a R, G, B input signal, then adjust it individually) 6) When finishing the adjustment, exit adjustment mode by pressing IN-START button on SVC remote control. 1) Adjust Mode : Sub adjustment menu selected by IN- START key. RGB alignment is selected in this case. D52WLCD ADJUSTMENTS...

  • Page 39: Screen Position Adjustment

    1) Connect a power source with TV Set and turn TV Set on. by pressing IN-START button on SVC Remote Control. 2) Do heat run for 5 min and over before adjustment. 3) Receive the main/sub signal of company through 13CH by split screen. D52WLCD ADJUSTMENTS...
  • Page 40 2) Press 5. AD9883 adjust to adjust . 3.7050 RGB Set. 3) When the AD9883 Gain Adjust has appeared after AD9883 6) Check the data 1.RContrast, 8.GContrast, 15.BContrast is Offset Adjust, the adjustment is completed. 515. Otherwise set the data 515 by using volume button. D52WLCD ADJUSTMENTS...
  • Page 41 H Coefficient(KHH, KHL) If it’s not, press the IN-START button on SVC Remote --> Calculation method (CEHP-CSHP=1280, Horizontal Control and then adjust the level data of each step manu- segment value =16) ally in sub menu of No. 8.Gamma Data. D52WLCD ADJUSTMENTS...
  • Page 42 L1coeff(hex) = hex(0.00390625 x 2 ) = 0 x 0400 Middle level when 3coefficient --> L1H(high 9bit) = b’000000010 L1L(low 9bit) = b’000000000 35. GLMID1 : Setting up the MIDDLE 1st Level of G --- Max level when 3coefficient D52WLCD ADJUSTMENTS...
  • Page 43 Adjust screen coordinates data to adjust the color unifor- mity of miner point. At this time, make sure that deviation is +5~-5% and stan- dard is color coordinate of center. 5) White the miner, middle, maximum data for each point to confront to each MICOM address. D52WLCD ADJUSTMENTS...

  • Page 44: Exploded View

    EXPLODED VIEW EXPLODED VIEW D52WLCD EXPLODED VIEW...
  • Page 45 CASE,SPEAKER BOX LEFT 3550V00159A COVER,SPEAKER BOX LEFT 3110V00124A CASE,SPEAKER BOX RIGHT 3550V00160A COVER,SPEAKER BOX RIGHT 3091V00A81B CABINET ASSEMBLY,RU-52SZ10 MONO NB02QB ZENITH 3350V00019A SCREEN,52W LCD PJTV 3790V00316C WINDOW,FILTER 52W LCD PJTV ACRYL DIABELL 3211V00080A FRAME ASSEMBLY,RN-52SZ10H 3210V00104 XCANVAS BASE UPPER 3211V00081B...

  • Page 46: Parts

    0TR387500AA CHIP 2SC3875S(ALY) KEC IC1601 0ISA428200A LA4282 12S 2CHX10W AUDIO AMP 0TR387500AA CHIP 2SC3875S(ALY) KEC IC1602 0IKE780500Q KIA7805API 3P TO220 ST REGULATOR 5V 0TR387500AA CHIP 2SC3875S(ALY) KEC 0IFA754207A KA75420ZTA 3P,TO92 TP 4.2V RESET IC 0TR387500AA CHIP 2SC3875S(ALY) KEC D52WLCD PARTS...
  • Page 47 CHIP 2SC3875S(ALY) KEC 1SS133 T72 TP ROHM KOREA DO34 90V Q1209 0TR150400BA CHIP 2SA1504S(ASY) KEC D403 0DR050008AA SD05.TC R/TP SEMTECH SOD323 5V 5A 15A Q121 0TR387500AA CHIP 2SC3875S(ALY) KEC D404 0DS113379BA 1SS133 T72 TP ROHM KOREA DO34 90V D52WLCD PARTS...
  • Page 48 0CK104DK56A ZD401 0DR190309AA MBRS190T3 TP MOTOROLA 90V 1A 50A 10NSEC C1041 0CK104DK56A 0.1UF 2012 50V 10% R/TP X7R 0DZ620009BB ZENERS,MTZJ6.2B C1042 0CE106DF618 10UF STD 16V M FL TP5 0DZ620009BB ZENERS,MTZJ6.2B 0.1UF 2012 50V 10% R/TP X7R C1043 0CK104DK56A D52WLCD PARTS...
  • Page 49 47UF MV 25V 20% R/TP(SMD) SMD C1208 0CE106VF6DC 10UF MV 16V 20% R/TP(SMD) SMD C1429 0CE476VH6DC 47UF MV 25V 20% R/TP(SMD) SMD C1209 0CE106VF6DC 10UF MV 16V 20% R/TP(SMD) SMD C1435 0CE476VH6DC 47UF MV 25V 20% R/TP(SMD) SMD D52WLCD PARTS...
  • Page 50 10UF MVG 16V 20% R/TP(SMD) SMD 0CE105VK6DC 1UF MV 50V 20% R/TP(SMD) SMD C187 0CE106SF6DC 10UF MVG 16V 20% R/TP(SMD) SMD 0CE476VF6DC 47UF MV 16V 20% R/TP(SMD) SMD C188 0CE106SF6DC 10UF MVG 16V 20% R/TP(SMD) SMD 0CE226VF6DC 22UF MV 16V 20% R/TP(SMD) SMD D52WLCD PARTS...
  • Page 51 10UF MV 16V 20% R/TP(SMD) SMD C865 181-091Q R 470PF 1KV 10%,10% R/TP TP5 C609 0CE476VF6DC 47UF MV 16V 20% R/TP(SMD) SMD C866 0CE105CK636 1UF SHL,SD 50V M FM5 BP(D) TP C610 0CE107VF6DC 100UF MV 16V 20% R/TP(SMD) SMD D52WLCD PARTS...
  • Page 52 75 OHM 1/6 W 5.00% L853 150-C02F COIL,CHOKE 82UH R1253 0RN1002F409 10K OHM 1/6 W 1.00% L861 150-C02F COIL,CHOKE 82UH R1606 0RF0331H609 3.3 OHM 1/2 W 5.00% L871 150-C02F COIL,CHOKE 82UH R1609 0RF0331H609 3.3 OHM 1/2 W 5.00% D52WLCD PARTS...
  • Page 53 1.5K OHM 1/6 W 5% T1202 6200JB8009Q FILTER ,EMC SCR470R220 R842 0RD3001F609 3K OHM 1/6 W 5.00% 6200VJT001B FILTER ,EMI BMK800 NIIGATA 50VOLT 1A R843 0RD2701F609 2.7K OHM 1/6 W 5% 6200VJT001B FILTER ,EMI BMK800 NIIGATA 50VOLT 1A D52WLCD PARTS...
  • Page 54 ACCESSORIES T416 6200QJ3001A FILTER ,EMC EMI BMS400 25V 200MA FILTER ,EMC EMI BMS400 25V 200MA T418 6200QJ3001A 3828VA0220L MANUAL,OWNERS ZENITH EN T421 6200QJ3001A FILTER ,EMC EMI BMS400 25V 200MA 6710V00052H REMOTE CONTROLLER *ZENITH T422 6200QJ3001A FILTER ,EMC EMI BMS400 25V 200MA...

  • Page 57: Schematics

    Schematics Main Circuit ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 53 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 58: Digital Circuit

    Digital Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 54 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 59: Microprocessor Circuit

    Microprocessor Circuit ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 55 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 60: Digital Microprocessor Circuit

    Digital Microprocessor Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 56 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 61: Decoder Circuit

    Decoder Circuit ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 57 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 62: Driver Circuit

    Driver Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 58 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 63: Lcd Driver Circuit - Green

    LCD Driver Circuit - Green ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 59 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 64: Lcd Driver Circuit - Red

    LCD Driver Circuit - Red CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 60 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 65: Lcd Driver Circuit - Blue

    LCD Driver Circuit - Blue ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 61 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 66: I/O Switch Circuit

    I/O Switch Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 62 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 67: Keyboard & Led Circuit

    Keyboard & LED Circuit ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 63 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 68: Power Supply Circuit

    Power Supply Circuit CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 64 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 69: Tuner Circuit 1/2

    Tuner Circuit 1/2 ALL SYMBOLS WITH “M” ON END OF DESIGNATOR CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR D52WLCD - 923-03??6 SHEET 65 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...

  • Page 70: Tuner Circuit 2/2

    Tuner Circuit 2/2 CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR ALL SYMBOLS WITH “M” ON END OF DESIGNATOR D52WLCD - 923-03??6 SHEET 66 COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. INDICATE SURFACE MOUNTED COMPONENT...
  • Page 71 PRINTED CIRCUIT BOARD TUNER(TOP) DIGITAL(TOP) MAIN(TOP) MAIN(BOTTOM) DIGITAL(BOTTOM) TUNER(BOTTOM) TUNER(BOTTOM) DRIVER(TOP) DRIVER(BOTTOM) COMPONENT(TOP) POWER(SMPS) SMPS COMPONENT(BOTTOM) 3D-DCF(TOP) 3D-DCF(BOTTOM) LED(TOP) CONTROL(TOP) INTER(BALLAST) SIDE A/V PRE-AMP INTER(LCD PJTV) CONTROL(BOTTOM) LED(BOTTOM)

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