LG RL-44SZ21RD Service Manual
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LG RL-44SZ21RD Service Manual

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DLP Projection TV

SERVICE MANUAL

CHASSIS : MB-02JB
MODEL : RE/RL-44SZ21RD
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
ON/OFF
AV4
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 RL-44SZ21RD

  • Page 1: Service Manual

    DLP Projection TV SERVICE MANUAL CHASSIS : MB-02JB MODEL : RE/RL-44SZ21RD 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 ..................16 BLOCK DIAGRAM......................18 PRINTED CIRCUIT BOARD ...................22 EXPLODED VIEW ......................30 EXPLODED VIEW PARTS LIST ..................31 REPLACEMENT PARTS LIST ..................32 SVC.

  • 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

    9. PSM (Picture Status Memory) recalls your preferred picture setting. 10.I/II selects the language during dual language broadcast. selects the sound output. (With TELETEXT) 11.VCR BUTTONS control a LG video cassette recorder. - 6 -...
  • Page 7 12.TV/AV selects the remote operating mode. switches the set on from standby. 13.SLEEP sets the sleep timer. 14.TELETEXT BUTTONS These buttons are used for teletext. For further details, see the ‘Teletext’ section. 15.CANCEL/EXIT Clears all on-screen displays and returns to TV viewing from any menu.

  • Page 8: Front Panel

    Front panel Lamp indicator, temperature indicator, and operation indicator, located side the front panel controls reveal the operating status of the DLP (Digital Light Processing) projection TV. 1. MAIN POWER (ON/OFF) 7. OPERATION INDICATOR (Refer to p.7) switches the set on or off. 8.

  • Page 9: Rear Panel

    Rear panel AERIAL SOCKET AUDIO OUT SOCKETS UPGRADE PORT This port is used to upgrade the 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 “LAMP REPLACE“ appears on the screen.

  • Page 11: Specifications

    This specification can be applied to all the DLP Projection TV related to MB-02JB Chassis. Test and Inspection Method 1) performance:Follow the Standard of LG TV test 2) RCA JACK performance :Follow the standard of LG. Test Condition 1) Temperature :25¡ 5 °C(CST : 40°C ¡ 5 °C) 2) Relative Humidity:65¡...
  • Page 12 Feature and Function Specification Item Remark Teletext TOP, FLOP, LIST, 128 PAGE NEC Code REMOCON 4810I/P, 5761I/P, 720P, 1080I Audio/Video Rear: Component YPbPr Input 2group Component Audio Input(L/R) 2group RF Input RGB IN/ TV OUT Full Scart(AV1) : 1group Monitor OUT Half Scart(AV2/ S-Video) : 2group Half Scart(AV3) : 1group S-Video Input 1group...
  • Page 13 Specification Remark Item Unit DC Voltage, Digital/DLP Board 2.5V DC Voltage, Digital/DLP Board 3.3V DC Voltage, Digital/DLP Board 50V DC Voltage, DLP Board 12V 11.5 12.5 DC Voltage, Turning voltage DC Voltage, MICOM DC Voltage, Fan 11.5 12.5 External Interface Specification Remark Item...
  • Page 14 DMD specification Specification Remark Item Unit Screen Size 0.65’’ Number of pixels 1024(H)x576(V) Pixel pitch 13.68(H)x13.68(V) 40.5 Dot clock Operating Temperature Operating Humidity Storage Temperature Storage Humidity Mirror Tilt 13.68 Mirror pitch axis of rotation-lower right to upper left SCP Clock frequency Risa/Fall Time(10% to 90%) DMD Sefect specification Specification...
  • Page 15 Option Specification Remark Item Unit 0 : Slow volume Curve Volume Curve 1 : Fast Volm Cuve 0 : Not realize TOP method Text Top 1 : Realize TOP method 0 : Dual Sound Mode No Save I_II SVC 1 : Dual Sound Mode Save 0 : OSRAM Lamp Type 1 : PHILIPS...

  • Page 16: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS 1. Application Object 4. CPLD Memory work This instruction is for the application to the TV MB-02JB (1)Required Test Equipments & Preparation for chassis of DLP Projection. Adjustment 1) Connect the PC and memory JIG as shown figure. 2.
  • Page 17 (2) Preparation for Adjustment 1) Do not assemble the front pannel equipment so that you can adjust the adjustment knob. 2) TV set display the adjustment pattern of “ ADJ -> 2.Position”. (3) Adjustment Sequence 1) Adjust Tilt to be horizontal optical Engine plate and rotate two adjustment knobs to adjust Key stone.

  • Page 18: Block Diagram

    BLOCK DIAGRAM 1. DLP Block - 18 -...
  • Page 19 2. DLP Driver Block - 19 -...
  • Page 20 3. Digital Board Block TXC- TXC+ TX0- TX0+ TX1- TX1+ TX2- TX2+ TXT_FB SUB_Cr SUB_Y SUB_Cb SYNCVAL SDA2 SCL2 SDA1 SCL1 - 20 -...
  • Page 21 4. SMPS Block ANA_Sub B D - 21 -...

  • Page 22: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN(TOP) - 22 -...
  • Page 23 MAIN(BOTTOM) - 23 -...
  • Page 24 TUNER(TOP) TUNER(BOTTOM) - 24 -...
  • Page 25 DLP DRIVER B/D(TOP) DLP DRIVER B/D(BOTTOM) - 25 -...
  • Page 26 DIGITAL BOARD (TOP) DIGITAL (BOTTOM) - 26 -...
  • Page 27 POWER - 27 -...
  • Page 28 PRE-AMP(TOP) POWER/LED(TOP) PREAMP(BOTTOM) POWER/LED(BOTTOM) SMPS (TOP) SMPS (BOTTOM) - 28 -...
  • Page 29 COMPONENT(TOP) CONTROL(TOP) COMPONENT(BOTTOM) CONTROL(BOTTOM) - 29 -...

  • Page 30: Exploded View

    EXPLODED VIEW - 30 -...

  • Page 31: Exploded View Parts List

    PWB(PCB) ASSEMBLY,POWER SMPS MB02JA RE-44SZ20RD 3210V00127C FRAME, CHASSIS HIPS 60HR RE-44SZ20 MB-02JA 6871VSMW28A PWB(PCB) ASSEMBLY,SUB SIGNAL MB02JB RE-44SZ21RD TUNER M/I ASSY 6871VSMW28B PWB(PCB) ASSEMBLY,SUB SIGNAL MB02JB RL-44SZ21RD TUNER M/I ASSY 6871VSMB66A PWB(PCB) ASSEMBLY,SUB P/AMP MB02JA PREAMP M/I ASSY 4980V00430B SUPPORTER, PCB EGI RE-44SZ20RD 6871VSMB99A...

  • Page 32: Replacement Parts List

    IC, CXA2069Q QFP64 BK I2C BUS AV S/W IC831 0ISK615311B IC, STR-G6153T(LF1101) 5PIN BK STR HN-61A40R IC301 0ICTMLG003C IC, LGDT1502M LG IC 304P QFP TRAY READY-2 AMKOR IC841 0ILI817000G IC, LTV817M-VB 4P,DIP BK PHOTO COUPLER IC301 0ISO211900A IC, CXA2119M 28P,SOP TP VIDEO SWITCHING...
  • Page 33 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q116 0TR830009BA TR, BSS83 TP PHILIPS NON N-CHANNEL S/W Q801 0TR387500AA TR, CHIP 2SC3875S(ALY) KEC Q1203 0TR387500AA TR, CHIP 2SC3875S(ALY) KEC Q802 0TR387500AA TR, CHIP 2SC3875S(ALY) KEC Q1204 0TR387500AA TR, CHIP 2SC3875S(ALY) KEC Q811 0TF283700AA TR, 2SK2837 BK TOSHIBA 500V 20A TO3P...
  • Page 34 & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows; RF : Fusible LOCA.
  • Page 35 & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows; RF : Fusible LOCA.
  • Page 36 & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows; RF : Fusible LOCA.
  • Page 37 CONNECTOR, 2.5MM 3P GIL-G LG CABLE S (STICK) L405 0LCML00003B INDUCTOR, MLB-201209-0120P-N2 5A MAG LAYERS R/TP P203B 366-922B CONNECTOR, 2.5MM 3P GIL-G LG CABLE R/A (B TO C) 0LC1032101A INDUCTOR, 10UH 10% 3216 R/TC FI-C3216-103KJT 6602V12001B CONNECTOR, 1.25MM 3P 53261-0390 L504...
  • Page 38 CONNECTOR, 2.5MM 6P GIL-G LG CABLE S (STICK) R426 0RN1201F409 1.2K OHM 1/6 W 1.00% TA52 P803B 366-922E CONNECTOR, 2.5MM 6P GIL-G LG CABLE R/A (B TO C) R556 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% R/TP 4P E24 SERIES HN-61A40R P803B 366-009D CONNECTOR, 2.36PAI 1P .
  • Page 39 SWITCH,TACT TACT 2LEAD 160G(TA) LG C&D NON T423 6200QJ3001A FILTER, REEL/TAPING BMS400 NIGATA 25V 200MA 140-313A SWITCH,TACT TACT 2LEAD 100G(TA) LG C&D NON 5V 0.001A T424 6200VJT006A FILTER, STC222D NIIGATA 50VOLT 4A 2200PF 140-313B SWITCH,TACT TACT 2LEAD 160G(TA) LG C&D NON...
  • Page 40 RELAY DG5D1-0-2 DAIICHI 5V 0.000106A 250V 5A OHM 1A TU101 6700MF0001H TUNER TAFD-M232D LG MULTI FS 3SYS,2IN1,DIN TU101 6700SL0001D TUNER TAFD-S212D LG SECAM-L2 FS 2IN1, DIN VA800 164-003K VARISTOR SVC621D-14A ILJIN 620V 0% UL/CSA/VDE BK X300 6204B60001A OSCILLATOR, 13.5MHZ +/- 25 PPM 3.3V T/R VCXO...
  • Page 41 P/No : 3854VA0114E-S1(1/2) 2003.05.06...
  • Page 42 P/No : 3854VA0114E-S1(2/2) 2003.05.06...
  • Page 43 P/No : 3854VA0114E-S2(1/2) 2003.05.06...
  • Page 44 P/No : 3854VA0114E-S2(2/2) 2003.05.06...

  • Page 45: Svc. Sheet

    SVC. SHEET : 3854VA0114E-S1 SVC. SHEET : 3854VA0114E-S2...
  • Page 46 Jul.,2003 P/NO : 3828VD0133L Printed in Korea...

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