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LG RE-44SZ20RD Service Manual

LG RE-44SZ20RD Service Manual

Chassis : mb-02ja dlp projection tv
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DLP Projection TV
SERVICE MANUAL
CHASSIS : MB-02JA
MODEL : RE/RL-44SZ20RD
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
AV4
ON/OFF
R
AUDIO
L/MONO
VIDEO S-VIDEO
TV/AV MENU
OK
VOL
PR
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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Summary of Contents for LG RE-44SZ20RD

  • Page 1 website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html DLP Projection TV SERVICE MANUAL CHASSIS : MB-02JA MODEL : RE/RL-44SZ20RD CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. ON/OFF AUDIO L/MONO VIDEO S-VIDEO TV/AV MENU...
  • Page 2: Table Of Contents

    CONTENTS CONTENTS ........................2 SAFETY PRECAUTIONS ....................3 SERVICING PRECAUTIONS ..................4 CONTROL DESCRIPTIONS ....................6 REPLACINIG LAMP ......................10 SPECIFICATIONS ......................11 ADJUSTMENT INSTRUCTIONS ..................12 BLOCK DIAGRAM......................13 EXPLODED VIEW ......................18 EXPLODED VIEW PARTS LIST ..................19 REPLACEMENT PARTS LIST ..................20 SVC. SHEET ........................- 2 -...
  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
  • Page 4: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service transistors and semicounductor "chip" components. The manual and its supplements and addenda, read and follow the following techniques should be used to help reduce the SAFETY PRECAUTIONS on page 3 of this publication. incidence of component damage caused by static by static NOTE: If unforeseen circumstances create conflict between the electricity.
  • Page 5 c. Qulckly move the soldering iron tip to the junction of the Fuse and Conventional Resistor component lead and the printed circuit foil, and hold it Removal/Replacement there only until the solder flows onto and around both the 1. Clip each fuse or resistor lead at top of the circuit board component lead and the foil.
  • Page 6: Control Descriptions

    8. PSM (Picture Status Memory) recalls your preferred picture setting. 9. I/II selects the language during dual language broadcast. selects the sound output. 10. VCR BUTTONS control a LG video cassette recorder. - 6 -...
  • Page 7 11. TV/AV selects the remote operating mode. switches the set on from standby. 12. SLEEP sets the sleep timer. POWER 13. TELETEXT BUTTONS These buttons are used for teletext. TV/AV For further details, see the ÔTeletextÕ section. MUTE SLEEP 14. CANCEL/EXIT TEXT Clears all on-screen displays and returns to TV viewing from any menu.
  • Page 8: Front Panel

    Front panel Lamp indicator, operation indicator, and temperature indicator, located side the front panel controls reveal the operating status of the DLP(Digital Light Processing) projection TV. ON/OFF AUDIO L/MONO VIDEO S-VIDEO TV/AV MENU ON/OFF L/MONO AUDIO VIDEO S-VIDEO TV/AV MENU 1.
  • Page 9: Rear Panel

    Rear panel ANT IN SERIAL AUDIO ANT IN AERIAL SOCKET AUDIO AUDIO OUT SOCKETS UPGRADE PORT This port is used to upgrade the UPGRADE PORT software version and debug EURO SCART SOCKETS without changing the hardware. Be careful not to use this port. Just contact your dealer or ser- vice centre.
  • Page 10: Replacinig Lamp

    REPLACING THE LAMP * Contact your dealer or LG service center for replacing the new lamp. You must replace the lamp when; The set image get darker or start to be deteriorated. ¯ The lamp indicator is orange. ¯ The message ÒLAMP REPLACEÒ appears on the screen.
  • Page 11: Specifications

    SPECIFICA TIONS Note : Specification and others are subject to change without notice for improvement. Video input system: Power requirement : 230V, 50Hz PAL-B/G, D/K, I/I SECAM-B/G, D/K,L/L’ Power consumption : 230W NTSC M STAND-BY : 3W Intermediate Frequency (Unit : MHz) VISION IF : 38.9MHz COLOR IF : 34.47MHz(4.43) 35.32MHz(3.58)
  • Page 12: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4-2. Screen Position Adjustment This instruction is for the application to the DLP Projection. (1). Required Test Equipments Remote control : 1EA 2. Notes (2). Horizontal Position Adjustment 1) Press ADJ key on the remote control to enter the (1) The power source insulation of this DLP Projection is not adjustment.
  • Page 13 4-6. White Balance Adjustment (1). Required Test Equipments : CA110 (2). White standard value : X=0.283!0.01,Y=0.297 ! 0.01 (3). Adjustment Sequence 1) Install the CA110 at 20cm distance from the center of screen. 2) Enter the ADJ mode of the remote control for adjustment. 3) Enter the 3.White Balance again.
  • Page 14: Block Diagram

    BLOCK DIAGRAM 1. DLP Block - 14 -...
  • Page 15 2. DLP Driver Block - 15 -...
  • Page 16 3. Digital Board Block - 16 -...
  • Page 17 4. SMPS Block - 17 -...
  • Page 18: Exploded View

    EXPLODED VIEW...
  • Page 19: Exploded View Parts List

    3211V00085A FRAME ASSEMBLY,NON RE-44SZ20 3210V00130A LG 3350V00021A SCREEN,TOPPAN 44W DLP PJTV RE-44SZ20 994*560.5 .. 3350V00079C Screen, COMPLEX DNP LENTI. RE-44SZ20RD 994*560.5*2.4 NON HARD COATING 3790V00689A WINDOW,FILTER RE-44SZ20 ACRYL 44 DLP PJTV 3790V00792A Window, CUTTING ACRYL FILTER ASSY,44SZ20 ACRYL SVC 3550V00230A...
  • Page 20: Replacement Parts List

    IC301 0ISO211900A IC,CXA2119M 28P,SOP TP VIDEO SWITCHING IC203 0TR830009BA TR,BSS83 TP PHILIPS NON N-CHANNEL S/W IC301 0ICTMLG003C IC,LGDT1502M LG IC 304P QFP TRAY READY-2 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC 0ITI740000Q IC302 IC,SN74LVC00AD 14SOP R/TP LOGIC D-TV Q101 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC...
  • Page 21 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 22 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 23 For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film in the P/No. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible LOCA.
  • Page 24 CONNECTOR,36512-0098 MALE MOLEX 48 2.54 D-TV AR301 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 SERIES P203A 366-932B CONNECTOR, 2.5MM 3P GIL-G LG CABLE S AR302 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 SERIES P203B 366-922B CONNECTOR,2.5MM 3P GIL-G LG CABLE R/A...
  • Page 25 6200QJ3001A FILTER,EMI REEL/TAPING BMS400 NIGATA 25V 200MA SWITCH T420 6200QJ3001A FILTER,EMI REEL/TAPING BMS400 NIGATA 25V 200MA 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON T421 6200QJ3001A FILTER,EMI REEL/TAPING BMS400 NIGATA 25V 200MA 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON T422 6200QJ3001A...
  • Page 26 6212AB2015D RESONATOR,CRYSTAL HC-49/SM 16MHZ +/- 50 PPM 16PF X601 156-A02M RESONATOR,CRYSTAL HC49U 18.432MHZ 30PPM 10PF ACCESSORIES 3828VA0362J MANUAL,OWNERS MB02JA FS LG FR 084U TX 335A 6710V00084U REMOTE CONTROLLER MB02JA NON RE-44SZ2 174-322C POWER CORD,W/FILTER L=50(179B)VDE MISCELLANEOUS 6501VN0001C SENSOR ASSY,NTC 103AT-100LC 600MM...
  • Page 27 P/No : 3854VA0114A-S1(1/2) 2002.11.05...
  • Page 28 P/No : 3854VA0114A-S1(2/2) 2002.11.05...
  • Page 29 P/No : 3854VA0114A-S2(1/2) 2002.11.05...
  • Page 30 POWER PRE-AMP(BOTTOM) MAIN (TOP) MAIN (BOTTOM) PRE-AMP(TOP) POWER/LED(TOP) POWER/LED(BOTTOM) P/No : 3854VA0114A-S2(2/2) 2002.11.05...
  • Page 31 TUNER(TOP) TUNER(BOTTOM) DRIVER(TOP) DRIVER(BOTTOM) DIGITAL(BOTTOM) DIGITAL(TOP) FRONT/CONTROL(TOP) FRONT/CONTROL(BOTTOM) P/No : 3854VA0114A-S3 2002.11.05...
  • Page 32: Svc. Sheet

    SVC. SHEET : 3854V A0114A-S1 SVC. SHEET : 3854V A0114A-S2 SVC. SHEET : 3854V A0114A-S3 SVC. SHEET :...
  • Page 33 Nov.,2002 P/NO : 3828VD0133E Printed in Korea...

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