LG RL-44NB10RB Service Manual

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COLOR TV

SERVICE MANUAL

CHASSIS : MP-03AB
MODEL : RE/RL-44NB10RB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
TV/AV
MENU
OK
MUTE
VOL
PR
ON/OFF
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html

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  Summary of Contents for LG RL-44NB10RB

  • Page 1: Service Manual

    COLOR TV SERVICE MANUAL CHASSIS : MP-03AB MODEL : RE/RL-44NB10RB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. TV/AV MENU MUTE ON/OFF...
  • Page 2: Table Of Contents

    CONTENTS CONTENTS ...................... 2 SAFETY PRECAUTIONS .................3 SERVICING PRECAUTIONS ................4 SPECIFICATIONS ................... 6 CONTROL DESCRIPTIONS ................9 ADJUSTMENT....................12 TROUBLE SHOOTING..................26 BLOCK DIAGRAM ..................33 PRINTED CIRCUIT BOARD................34 EXPLODED VIEW ..................44 EXPLODED VIEW PARTS LIST..............45 REPLACEMENT PARTS LIST ..............46 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: Specifications

    5) Follow each drawing or spec for spec and performance of parts,based upon P/N of RPL 6) Warm up TV set for more than 60min before the measurement. Test and Inspection Method 1) Performance : Follow the Standard of LG TV test 2) Extra requirement Model...
  • Page 7 Test and Inspection Method (S Mark : Option Item) Item Specification Remark Recieving System PAL, SECAM-BG PAL, SECAM-DK, PAL-I PAL, SECAM-BG SECAM-LL’ AV can be input NTSC-M PAL, SECAM-BG, PAL, SECAM-DK, PAL-I NTSC-M Available Channel 1) VHF : E2 ~ E12 2) UHF : E21 ~ E69 3) CATV...
  • Page 8: Half Scart : 1 (Av In/Out

    Feature and Function Item Remark Specification Feature AV Input Side V/L/R S (Rear, RT model) V/L/R S (Rear, RT model) AV Output V/L/R Rear 480i/ 480P/ 576i Component Input COMPONENT1, L/R (1080i for CHINA) COMPONENT2, L/R S-Video Input side 1, Rear 1 S (Rear, RE,RL model) SCART Full SCART (with RGB Input) : 1...
  • Page 9: Control Descriptions

    MENU MUTE 9. SLEEP sets the sleep timer. 10. I/II selects the language during dual language broadcast. selects the sound output (option). 11. VCR BUTTONS control a LG video cassette recorder. POSITION SCAN STILL SIZE SLEEP LIST I/II A RC...
  • Page 10 12. MULTIMEDIA (option) POWER selects modes. Component 1 or Component 2 TV/AV MULTIMEDIA 13. TURBO PICTURE BUTTON TURBO selects Turbo picture. SOUND PICTURE 14. TELETEXT BUTTONS (option) These buttons are used for teletext. For further details, see the ‘Teletext’ section. MENU MUTE 15.
  • Page 11: Front Panel

    Front panel • RT-44NB10 series TV/AV MENU MUTE ON/OFF (Side panel) TV/AV MENU MUTE 1. MAIN POWER (Volume Up/Down) switches the set on or off. adjusts the volume. adjusts menu settings. 2. REMOTE CONTROL SENSOR (Programme Up/Down) 3. TV/AV (option) selects a programme or a menu item.
  • Page 12: Adjustment

    ADJUSTMENT INSTRUCTIONS These instructions are applied to only MP-03AB chassis. Notes 1.Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect Green Light test instrument. Red/Blue Light 2.Adjustment must be done in the correct order.
  • Page 13: Deflection Adjustment

    (2) Adjustment must be operated in a dark room (simple dark 2 Pole Magnet room) 2. Adjustment 4 Pole Magnet (1) Test Equipment: Oscilloscope, 100:1 Probe (2) Connect oscilloscope to cathode of R, G, B(R926R/B/G: SCREEN ADJ on the PCB) and GND. 6 Pole Magnet (3) Turning Screen Volume (R/G/B) in Focus Pack and adjust R/G/B is 165V!0.5V.
  • Page 14 6) ET(East-west Trapezium) Fourth Vertical Line Adjust to make the width of top horizontal line same with it of the bottom horizontal line. Third Bar Sixth Vertical Line 4. 1080i Mode deflection Adjustment (option) 7) A-ANG(AFC Angle) (1) Test Equipment Vertical slope adjustment SETTOP BOX with 1080i output or MSPG-925LTH (Programmble VIDEO Signal Generator).
  • Page 15: Convergence Adjustment

    4) Adjustment must be done in a dark room(simple dark room) 2) Adjust as same as method of Green lens with Red focus Be careful not to touch the lens during adjustment. control volume of focus pack. 5) Make any one color raster using lens covers. 6) Rotating lens right from the front side chromatic haze occurs beside Cross-hatch line changes as follows;...
  • Page 16: Auto Convergence

    8. Adjusted data saving 1) To save the data after adjustment,Press “9”, “1” & “OK” button. 2) Exit convergence adjustment mode. (“IN_START” button) 9. Auto-Convergence measuring or Measuring back up data (option) 1) Operate the auto-convergence measuring or the measuring back up data separately in PAL,NTSC and 1080i(Option) Convergence Phase Adjustment mode.
  • Page 17: Auto Convergence

    Sub-Bright Adjustment(Option) 1) Tune the TV set to receive a EU 05 CH. 2) Enter WB mode by pressing the IN_START & ‘4’ button. Adjust S-BRI data until 100% and 80% GRAY PATTERN is classified. (Use , OK buttons) Fifth Vertical Line 100% and 80% GRAY PATTERN SUB BRIGHT Adjustment Signal Auto-Convergence Check (option)
  • Page 18: Auto Convergence

    Convergence Adjustment Mode - INSTART -> 3 -> MENU * This Mode is for engineering. So,don’t change before permission from Design Department. 0.AC POSITION READ : Distance data(After auto convergence measuring) 1.Save to 50Hz/60Hz : Save (convergence adjustment data) It’s same 9,1,Enter. 2.Save Control data : Save (A phase adjustment data) It’s same 9,2,Enter.
  • Page 19 8.OSD POSITION 9.AC PATTERN ADJ ( Option : Only for Auto Convergence) SVC Adjustment mode & Initial data 1. White Blalane adjustment data (IC:CXA2180Q) Default Menu Description Range RE/RL Red Drive Green Drive Blue Drive Red Cut-off Green Cut-off Blue Cut-off Sub BRIGHT S-BRI Digital VCO...
  • Page 20 3.Picture adjustment data (IC : CXA21801) Remark Menu Description NTSC D-COL Dynamic color mode setting EXTSW Selects the Y/Cb/Cr input or EY/ECb/Ecr SHPFO Sharpness f0 setting BLKBT RGB output bottom limiter level control (for blanking/signal) PREOV Pre-shoot/over-shoot ratio setting CTILE CTI level setting LTILE LTI level setting...
  • Page 21 4.Picture adjustment data (IC : CXA21802) Menu Description NTSC Remark R-Y R R-Y axis + (R-Y) component setting R-Y B R-Y axis + (B-Y) component setting G-Y R G-Y axis + (R-Y) component setting G-Y B G-Y axis + (B-Y) component setting UP-BL VBLK position control for top of picture, when VBLK_SW = 1 LO-BL...
  • Page 22 5.CXA2151Q adjustment item NTSC Menu Description Remark INPUT Selects the four systems of inputs IN1 to IN4 MAT-O Selects the type of matrix conversion VFREQ Selects the frequency of the dummy sync output to SELV_OUT(pin23) SELS1 Selects the type of the signal input to IN1_H/L1(pin36) and IN1_V/L2(pin37) SELS2 Selects the type of the signal input to IN1_H/L1(pin44) and IN1_V/L2(pin45) FIX-S...
  • Page 23: Specifications

    6. OPTION Data Adjustment Option 1 Item Specification Remark 200PR 1 : 200 PROGRAM (CHINA ONLY) 1 : LIST no operation 0 : 100 PROGRAM (OTHER CONTRIES) 0 : LIST operation TSEAR 1 : WITH TURBO SEARCH 1 : RT/ RE 0 : WITHOUT TURBO SEARCH (FRANCE) 0 : RL I /II SV...
  • Page 24 Option 3 Item Specification Remark 1 : WITH PIP 0 : WITHOUT PIP INDEX 1 : WITH INDEX 0 : WITHOUT INDEX HDEV 1 : HIGH DEVIATION MODULATION (CHINA) 1 : China/ Saudi/ India/ Indonesia Lebanon/Pakistan/Iran 0 : RF NORMAL SOUND MODULATION (OTHERS) SV3.00/6.00’S D - PRO 1 : WITH DOLBY PRO LOGIC...
  • Page 25 Option 5 State Language Function LANGUEGE 0:ENG Only English 1:EU 5EA English/German/French/Italy/Spanish 2:EU ETC Pol./Hungary/Czecho/Russia/Eng 3:GREECE English/ Greece 4:FARSI English/Parsi (Iran) 5:ARAB URDU Eng./French/Arab(Egypt,Saudi)/Urdu(Pakistan) 6:E+Hindi English/Hindi(Without VGA) 7:E+I+M+V English/Indonesian/Malaysian/Vietnamese 8:E+THAI English/Thai 9:E+China English/China English/French/Swedish/Czech/German/Spanish/Italian T LAN 0:WEST EU 1:EAST EU1 Polish/French/Swedish/Czech/German/Slovenian/Italian/Rumanian 2:TURKEY EU English/French/Swedish/Turkish/German/Spanish/Italian...
  • Page 26: Trouble Shooting

    Trouble Shooting Q110 Main IC700 #53 Main Q701 IC700 IC262 IC262 #97 ? IC262 #54 ~ #115 IC262 #54 ~ #115 ? IC265 IC265 #38,41,46 ? IC501 #30, 32, 34 ? - 26 -...
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  • Page 33: Block Diagram

    BLOCK DIAGRAM - 33 -...
  • Page 34: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN1 (TOP) - 34 -...
  • Page 35 MAIN1 (BOTTOM) - 35 -...
  • Page 36 MAIN2 - 36 -...
  • Page 37 COMPONENT LOCATION GUIDE(MAIN2) R420 ..G3 R831..A4 J429...F2 JP19 ..E2 E5....D1 G37 ...D2 C401 C871..B3 R832..A4 JP20 ..F3 R421 ..G4 G38 ...D2 J430...F2 C872..B3 E6....C1 C403 R833..A4 J431...F2 JP21..G2 R422 ..F4 E7....C3 G39 ...D2 C405 C873..B2 R423 ..F4 R834..A4 J432...F2 JP22..G2 C874..B2 E8....D3 G40 ...D2...
  • Page 38 DIGITAL (TOP) DIGITAL (BOTTOM) - 38 -...
  • Page 39 CONVERGENCE OUT CPT(B , G , R) - 39 -...
  • Page 40 MICOM (TOP) MICOM (BOTTOM) - 40 -...
  • Page 41 AC INPUT SIDE A/V POWER S/W - 41 -...
  • Page 42 CONTROL D-CON PRE-AMP - 42 -...
  • Page 43 MEMO - 43 -...
  • Page 44: Exploded View

    EXPLODED VIEW - 44 -...
  • Page 45: Exploded View Parts List

    PWB(PCB) ASSEMBLY, SUB MICOM MP03AB M/I PAL-EU, W/TXT,EYE (GREECE) RE-44NB10RB.TPMLMG3 6871VSMG45H PWB(PCB) ASSEMBLY,SUB MICOM MP03AB M/I PAL-EU, W/TXT, EYE (ITALY) RE-44NB10RB.SPMLMI2/ TPMLMI3 6871VSMG45J PWB(PCB) ASSEMBLY,SUB MICOM MP03AB M/I SECAM, W/TXT, EYE (FRANCE) RL-44NB10RB 6871VSMG01Y PWB(PCB) ASSEMBLY, SUB MICOM MP03AB M/I W/TXT, EYE (HUNGARY) RE-44NB10RB 6871VSMC17A...
  • Page 46: Replacement Parts List

    REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC505 0IKE780500P KIA78L05BP(AT) 3P 5V,150MA MSP3411G QA B8 V3 MICRONAS 80P IC600 0IMCRMN001C D861 0ISK100300A SLA1003 SIP12 DIODE MODULE KIA7808API 3 ST REGULATOR IC601 0IKE780800J IC01 0ISM555000A SDA5550 MQFP100 0ISS455880A KA4558D 8SOP OP AMP...
  • Page 47 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION CHIP 2SC3875S(ALY) KEC KTC3198(KTC1815) KEC Q118 0TR387500AA Q408 0TR319809AA CHIP 2SC3875S(ALY) KEC KTC3198(KTC1815) KEC Q119 0TR387500AA Q409 0TR319809AA 0TR150400BA CHIP 2SA1504S(ASY) KEC 0TR126609AA KTA1266-Y(KTA1015) KEC Q410 0TR387500AA CHIP 2SC3875S(ALY) KEC 0TR205900AB KTD2059-Y TO-220IS KEC Q200...
  • Page 48 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION CHIP 2SC3875S(ALY) KEC EK14 V(1) E/EO-TMD 40V 1.5A Q708 0TR387500AA D488 0DD140009AA CHIP 2SC3875S(ALY) KEC KDS184S CHIP 85V 300MA KEC Q709 0TR387500AA D500 0DD184009AA 0TR387500AA CHIP 2SC3875S(ALY) KEC 0DS113379BA 1SS133 T-72 DO34 90V Q710 D501 0TR387500AA...
  • Page 49 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 50 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 51 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 52 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 53 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 54 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 55 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 56 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 57 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 58 For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film follows;...
  • Page 59 CRYSTAL, HC49U 18.432MHZ 30PPM 16PF BK 163-048D NTC80B THERMISTOR,NTCKL15L2R5 TU100 6700MF0001F TUNER, TAUD-M230D SWITCH TU101 6700MF0001G TUNER, TAFD-M231P SW800 140-289A PUSHPOWER SDDF3PASP013 LG C&D UL/C VA800 164-003D VARISTOR, SVC561D-14A UL/CSA/VDE TACT 2LEAD 160G(TA) SWT01 140-313B VA81B 164-003D VARISTOR, SVC561D-14A UL/CSA/VDE TACT 2LEAD 160G(TA) SWT02 140-313B...
  • Page 60 P/NO: 3854VA0124A - S1(1/2) 2004.6.10...
  • Page 61 P/NO: 3854VA0124A - S1(2/2) 2004.6.10...
  • Page 62: Svc. Sheet

    SVC. SHEET : 3854V A0124A-S1...
  • Page 63 Feb., 2005 P/NO : 3828VD0197B Printed in Korea...

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Re-44nb10rb