LG DU-52SZ61D Service Manual
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LG DU-52SZ61D Service Manual

LG DU-52SZ61D Service Manual

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DLP PROJECTION TV
SERVICE MANUAL
CHASSIS : NB-04AA
MODEL : DU-52SZ61D
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CANADA : http//biz.lgservice.com
USA
: http//www.lgservice.com
: http//lgservice.com/techsup.html

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Summary of Contents for LG DU-52SZ61D

  • Page 1 CANADA : http//biz.lgservice.com : http//www.lgservice.com : http//lgservice.com/techsup.html DLP PROJECTION TV SERVICE MANUAL CHASSIS : NB-04AA MODEL : DU-52SZ61D CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

  • Page 2: Safety Precautions

    If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. CANADA: LG Electronics Canada, Inc. 550 Matheson When the exposed metal has no return path to the chassis the Boulevard East Mississauga, Ontario L4Z 4G3 reading must be infinite.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS..............4 DESCRIPTION OF CONTROLS ...........5 ADJUSTMENT INSTRUCTION..........8 PRINTED CIRCUIT BOARDS ..........21 BLOCK DIAGRAM...............31 EXPLODED VIEW...............32 EXPLODED VIEW PARTS LIST .........33 REPLACEMENT PARTS LIST ..........34 SCHEMATIC DIAGRAM............- 3 -...

  • Page 4: Specifications

    SPECIFICATIONS DU-52SZ51D / DU-52SZ61D MODELS AC120V, 60Hz Power requirement NTSC-M, ATSC Television System VHF 2 ~ 13, UHF 14 ~ 69, CATV 1 ~ 135, CADTV 1 ~ 135. DTV 2 ~ 69 Program Coverage 75 Ω External Antenna Impedance •...

  • Page 5: Description Of Controls

    DESCRIPTION OF CONTROLS Controls Controls Remote Control Sensor POWER TV GUIDE ENTER Temperature Indicator POWER Button CHANNEL ( ) Buttons VOLUME ( ) Buttons TV GUIDE Button Lamp Indicator ENTER Button Operation Indicator Function Status Indicators Function Status Indicators - Lamp indicator, operation indicator, and temperature indicator located below the front panel controls, reveal the operating status of the DLP projection TV.
  • Page 6 DESCRIPTION OF CONTROLS Connection Options Connection Options Back Connection Panel Back Connection Panel LEFT/RIGHT AUDIO S-VIDEO Used for stereo A connection AUDIO sound from various available on types of equipment. some very VIDEO high-end equip- ment that pro- VIDEO S-VIDEO vides better pic- Connects the ture quality...
  • Page 7 DESCRIPTION OF CONTROLS Remote Control Key Functions Remote Control Key Functions - When using the remote control, aim it at the remote control sensor on the TV. MODE LIGHT Selects the remote operating mode: TV, Illuminates the remote control buttons. VCR, DVD, CABLE, HDSTB or AUDIO.

  • Page 8: Adjustment Instruction

    ADJUSTMENT INSTRUCTIONS 1. Application Object (3) As shown <Fig. 1>, using the CH+ ( ), CH- ( ) keys to select an item, press the ENTER or VOLUME+ ( ) keys to These instructions apply to the DLP Projection (Chassis: NB- enter the appropriate item and begin adjustment.
  • Page 9 ADJUSTMENT INSTRUCTIONS 5. Adjusting the Optical Engine <Fig. 4> <Fig. 6> [ Note: The focus check point is not the screen center but the upper/lower screen. (1) After placing the optical engine on the JIG, adjust illuminator by adjuting the A, B, and C as shown <Fig. 4>. 1) <Fig.
  • Page 10 ADJUSTMENT INSTRUCTIONS 6. Caution for DMD 8. CPLD Download Work (Digital Micro-mirror Device) 8-1. Required Test Equipments & Preparation for Adjustment 6-1. Caution for DMD ESD (1) Connect the PC and memory JIG as shown in <Fig. 10>. (1) Use a grounding strap to prevent ESD (Electrostatic (2) Turn on JIG MAIN POWER SW.
  • Page 11 ADJUSTMENT INSTRUCTIONS (4) Select program options. (2) Select "Configure -> Select Device". (5) Check the [Erase before programming] and [Verify] menu as shown <Fig. 12> and press the OK button. (6) At this time, the download starts. The download will finish in about 10 seconds.
  • Page 12 ADJUSTMENT INSTRUCTIONS (5) Select "File -> Import", select the Work HEX file and open. 10-2. Adjustment Sequence (1) When the program is executed, select MPLAB ICD2 from "Programmer -> Select Programmer" (2) Select "Configure -> Select Device". (6) Select "Programmer -> Program". (3) When the "Select Device"...
  • Page 13 ADJUSTMENT INSTRUCTIONS When connected with the Micom, the display message on 11. POD Certificate Download & the Output window appears as below. IEEE1394(DTCP) Download Connecting to MPLAB ICD 2 11-1. Preparation for Adjustment ...Connected (1) Connect the MEMORY JIG and PC. Setting Vdd source to MPLAB ICD 2 (2) Turn on the JIG MAIN POWER SWITCH.
  • Page 14 ADJUSTMENT INSTRUCTIONS (5) After clicking ENTER, the ‘opens Private key' window (8) Now, you may begin IEEE1394 (DTCP) Download work. appears and select the Private key applied to the SET. Select the “DTCP.dat” file by pressing the ‘DTCP File The Private Key file name is on the Label of the Digital Open’...
  • Page 15 ADJUSTMENT INSTRUCTIONS 12-2. Preparation for Adjustments (1) When using VBI Inserter(TES3): Signal uses Cable input and set as below. Input Signal (2) When not using VBI Inserter(TES3): VCR uses Cable input and set as below. (11) When completed, “DTCP key Download: OK" will display in the Terminal window and the SET will reboot automatically.
  • Page 16 ADJUSTMENT INSTRUCTIONS 13. Cable Operation Confirmation 14. Tilt & Keystone Adjustment (1) Confirm that the Cable Card is inserted in the slot. 14-1. Required Test Equipment (2) Enter the EZ adjust menu by pressing Adjust on the (1) Hardware: Six angle wrenches, Spanner, and Screwdriver Service Remote Control (S R/C).
  • Page 17 ADJUSTMENT INSTRUCTIONS 14-4. It followed in Screen Condition, Projector Lens Direction (1) When the upper portion of the screen is larger than the bottom: Adjust Projection lens upward (2) When the upper portion of the screen is smaller than the bottom: Adjust Projection lens downward 14-5.

  • Page 18: Screen Position Adjustment

    ADJUSTMENT INSTRUCTIONS 15. Screen Position Adjustment 16. Component AD9883A Offset/ Gain Adjustment 15-1. Required Test Equipment Service Remote Control 16-1. Required Test Equipment Service Remote Control, 801GF/802F Pattern Generator 15-2. Horizontal Position Adjustment (1) Press ADJ key on the remote control to enter the adjustment mode.

  • Page 19: 18-1. Required Test Equipments

    ADJUSTMENT INSTRUCTIONS 17. White Balance Adjustment 18-3. Adjustment (1) Using the Volume key, adjust CWI to the left/right. (2) As adjustment, check the appearance noise in the TEST 17-1. Required Test Equipment Pattern. CA110 or CA210 Setting the value reduced 3~4 step at a GREEN noise disappearing spot.
  • Page 20 ADJUSTMENT INSTRUCTIONS 19. Main/Sub Contrast Adjustment Adjust which it sees last prosecuting attorney time the screen contrast difference. Basically the letter does with the fact that the character and distinction become. 19-1. Preparation for Adjustment (1) Receive signal(RF 06Ch.) on the Main/Sub screen in twin picture mode.

  • Page 21: Printed Circuit Boards

    PRINTED CIRCUIT BOARD MAIN(TOP) - 21 -...
  • Page 22 PRINTED CIRCUIT BOARD MAIN(BOTTOM) - 22 -...
  • Page 23 PRINTED CIRCUIT BOARD TUNER(TOP) - 23 -...
  • Page 24 PRINTED CIRCUIT BOARD TUNER(BOTTOM) - 24 -...
  • Page 25 PRINTED CIRCUIT BOARD DIGITAL(TOP) - 25 -...
  • Page 26 PRINTED CIRCUIT BOARD DIGITAL(BOTTOM) - 26 -...
  • Page 27 PRINTED CIRCUIT BOARD DRIVER(TOP) DRIVER(BOTTOM) - 27 -...
  • Page 28 PRINTED CIRCUIT BOARD SMPS LINE FILTER - 28 -...
  • Page 29 PRINTED CIRCUIT BOARD CONTROL(TOP) CONTROL(BOTTOM) PRE-AMP SIDE A/V INTERFACE COLOR WHEEL CASE DET - 29 -...
  • Page 30 PRINTED CIRCUIT BOARD COMPONENT(TOP) LED(TOP) LED(BOTTOM) COMPONENT(BOTTOM) - 30 -...

  • Page 31: Block Diagram

    BLOCK DIAGRAM - 31 -...

  • Page 32: Exploded View

    EXPLODED VIEW - 32 -...

  • Page 33: Exploded View Parts List

    PCB ASSEMBLY,POWER SMPS NB-04AA DLP M/I 6871VSMS02A PCB ASSEMBLY,SUB TUNER NB03KB CABLE READY 6871VSMS01C PCB ASSEMBLY,SUB DIGITAL NB04AA DU-52SZ62D 6871VSMU24F PCB ASSEMBLY,SUB NB04AA DU-52SZ61D COMP M/I ASSY 6871VSMB50F PCB ASSEMBLY,SUB NB04AA DRIVER(DU-52SZ61D) 4814V00434B SHIELD ASSY,DN-44SZ60D NB03KB SUS ,SHIELD CASE DRIVE BOTTOM 4814V00394B...

  • Page 34: Replacement Parts List

    REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film RUN DATE : 2004.8.30 in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 35 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC820 0ISK666813A STR-F6668B(LF1352) 5PIN Q1202 0TR387500AA CHIP 2SC3875S(ALY) KEC STR-G6153T(LF1101) 5PIN CHIP 2SC3875S(ALY) KEC IC831 0ISK615311B Q1203 0TR387500AA 0ISH817300B PC817XF3 4D PHOTO COUPLER 0TR150400BA CHIP 2SA1504S(ASY) KEC IC832 Q1203 IC841...
  • Page 36 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q810 0TF283700AA 2SK2837 500V 20A TO3P D845 0DD414809ED 1N4148 TP GRANDE KSC945C-Y TO92 50V 150MA FML-G12S Q841 0TR945009AA D881 0DD120000BB 0TR322709AA KTC3227-Y,TP(KTC1627A) 0DRSA00170A FML-G14S TO220 400V Q842 D881 Q851 0TR945009AA...
  • Page 37 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1010 0CK104CF56A 0.1UF 1608 16V 10% C112 0CK104CF56A 0.1UF 1608 16V 10% 47UF MV 16V 20% 0.1UF 1608 16V 10% C1011 0CE476VF6DC C1120 0CK104CF56A 0CK104CF56A 0.1UF 1608 16V 10% 0CC200CK41A 20PF 1608 50V 5% C1011...
  • Page 38 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C1215 0CC471CK41A 470PF 1608 50V 5% C1318 0CK104CF56A 0.1UF 1608 16V 10% 10UF MV 16V 20% 0.1UF 1608 16V 10% C1216 0CE106VF6DC C1319 0CK104CF56A 0CE106VF6DC 10UF MV 16V 20% 0CK104CF56A 0.1UF 1608 16V 10% C1217...
  • Page 39 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C222 0CE105VK6DC 1UF MV 50V 20% C334 0CK104CF56A 0.1UF 1608 16V 10% 1UF MV 50V 20% 0.1UF 1608 16V 10% C223 0CE105VK6DC C335 0CK104CF56A 0CK104CF56A 0.1UF 1608 16V 10% 0CK104CF56A 0.1UF 1608 16V 10% C225...
  • Page 40 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C401 0CK104CF56A 0.1UF 1608 16V 10% C445 0CC560CK41A 56PF 1608 50V 5% 0.1UF 1608 16V 10% 56PF 1608 50V 5% C402 0CK104CF56A C447 0CC560CK41A 0CK104CF56A 0.1UF 1608 16V 10% 0CC560CK41A 56PF 1608 50V 5% C403...
  • Page 41 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C610 0CK104CF56A 0.1UF 1608 16V 10% C631 0CK104CF56A 0.1UF 1608 16V 10% 0.1UF 1608 16V 10% 0.1UF 1608 16V 10% C611 0CK104CF56A C632 0CK104CF56A 0CE226DK618 22UF STD 50V M 181-442Z PE,ECQ-B1H104KF3(TR) C611...
  • Page 42 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C707 0CK104CF56A 0.1UF 1608 16V 10% C743 0CK104CF56A 0.1UF 1608 16V 10% 0.1UF 1608 16V 10% 0.1UF 1608 16V 10% C708 0CK104CF56A C744 0CK104CF56A 0CK104CF56A 0.1UF 1608 16V 10% 0CK104CF56A 0.1UF 1608 16V 10% C709...
  • Page 43 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C804 0CF1050W470 1UF 0 500V 5% C825 0CE107BK618 100UF KME 50V M 1000P 2KV K B S 10PF 1608 50V 0.5 PF C805 0CK10202510 C825 0CC100CK11A 0CK104CF56A 0.1UF 1608 16V 10% 0CK104CF56A 0.1UF 1608 16V 10%...
  • Page 44 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C862 0CE228BH61A 2200UF KME 25V M C929 0CK104CF56A 0.1UF 1608 16V 10% R 470PF 1KV 10%,-10% 470PF 1608 50V 5% C865 181-091Q C930 0CC471CK41A 0CE108BK61A 1000UF KME 50V M 0CK104CF56A 0.1UF 1608 16V 10% C873...
  • Page 45 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION C965 0CK104CF56A 0.1UF 1608 16V 10% JA201 6613V00010B JACK ASSY,PMJ016B 3P JACK ASSY,PMJ021B 9P C966 0CK104CF56A 0.1UF 1608 16V 10% JA202 6613V00013B 0.1UF 1608 16V 10% 380-404A JACK,DIN PHSJ-9504 C968 0CK104CF56A...
  • Page 46 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION R808 0RS1202K607 12K OHM 2 W 5.00% SW06 140-313B SWITCH,TACT 2LEAD 160G(TA) 4.7 OHM 1/6 W 5% SWITCH,TACT 2LEAD 160G(TA) R809 0RD0471F609 SW07 140-313B 0RD0331H609 3.3 OHM 1/2 W 5.00% 6600DU2093V SWITCH,DIP 1-1437590-3 50VDC R810...
  • Page 47 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION L1007 6210TCE001G FILTER,EMC HH-1M3216-501 T400 6200VJT006A FILTER,EMC STC222D 50VOLT 4A 2200PF FILTER,EMC MLB-321611-0120A-N1 L101 0LCML00002A T401 6200VJT006A FILTER,EMC STC222D 50VOLT 4A 2200PF 6210TCE001G FILTER,EMC HH-1M3216-501 FILTER,EMC STC222D 50VOLT 4A 2200PF L1013 T402 6200VJT006A...
  • Page 48 REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION X800 6204B47985K OSCILLATOR,BMS-873R 25MHZ ACCESSORIES 3828VA0515C MANUAL,OWNERS NB04AA 6710V00116P REMOTE CONTROLLER,NB04AA PIP 6851V00023B CABLE ASSEMBLY,3000MM 2PICE - 48 -...
  • Page 49 Aug., 2004 P/NO : 3828VD0148N Printed in Korea CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 : LG Electronics Alabama, Inc. P.O.Box 240007, 201 James Record Road Bldg 3 Huntsville, AL 35824...

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