LG RT-44NZ21RB Service Manual
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LG RT-44NZ21RB Service Manual

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P/NO : 3828VD0133A
All manuals and user guides at all-guides.com
Mar., 2003
Printed in Korea
COLOR TV
SERVICE MANUAL
CHASSIS : MP-015D
MODEL : RT-44/49/56NZ21RB
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
TV/AV
MENU
OK
VOL
PR
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.htm

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  • Page 1 All manuals and user guides at all-guides.com website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.htm COLOR TV SERVICE MANUAL CHASSIS : MP-015D MODEL : RT-44/49/56NZ21RB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. TV/AV MENU Mar., 2003 P/NO : 3828VD0133A Printed in Korea...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS CONTENTS ...................... 2 SAFETY PRECAUTIONS ..................3 SERVICING PRECAUTIONS ................4 SPECIFICATIONS .................... 6 CONTROL DESCRIPTIONS................8 ADJUSTMENT INSTRUCTIONS ..............11 TROUBLE SHOOTING..................20 BLOCK DIAGRAM ..................28 PRINTED CIRCUIT BOARD................32 EXPLODED VIEW ................... 48,50 EXPLODED VIEW PARTS LIST..............49,51 REPLACEMENT PARTS LIST ..............

  • Page 3: Safety Precautions

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service transistors and semiconductor "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.
  • Page 5 All manuals and user guides at all-guides.com c. Quickly 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.

  • Page 6: Specifications

    Middle East option 6) Warm up TV set for more than 20min. before the RL-44/49/56NZ21RB France measurement. Test and Inspection Method 1) performance:Follow the Standard of LG TV test 2) Standards of Etc requirement Model Market Remark Appliance RE/RL- EUROPE...
  • Page 7 All manuals and user guides at all-guides.com Feature and Function Specification Remark Item AV Input Side V/L/R Feature (Rear,RT model) V/L/R AV Output (Rear,RT model) V/L/R Component Input Rear COMPONENT1 :480i/L/R COMPONENT2 :480p/L/R S-Video Input Side 1,Rear(SCART) 1 SCART Full SCART(with RGB Input) :1 (Rear,RE,RL model) Half SCART : 1 (AV In/out) Half SCART : 1 (AV In,YC In)

  • Page 8: Control Descriptions

    7. NUMBER BUTTONS switches the set on from standby or directly select a number. 8. PSM (Picture Status Memory) recalls your preferred picture setting. (With TELETEXT) 9. VCR BUTTONS control a LG video cassette recorder. - 8 -...
  • Page 9 All manuals and user guides at all-guides.com 10. TV/AV selects TV or AV mode. clears the menu / text from the screen. switches the set on from standby. 11. TURBO PICTURE BUTTON POWER selects Turbo picture. 12. TELETEXT BUTTONS (option) I/II TV/AV These buttons are used for teletext.
  • Page 10 All manuals and user guides at all-guides.com Front panel ¥ RT-49NZ21RB TV/AV MENU (Side panel) TV/AV MENU 1. MAIN POWER (Volume Down/Up) switches the set on or off. adjusts the volume. adjusts menu settings. 2. TV/AV (Programme Up/Down) selects TV or AV mode. selects a programme or a menu item.

  • Page 11: Adjustment Instructions

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS Raster Slope/Focus 1th Adjustment 45mm 1. Preliminary steps 1) Receive the EU 05 CH signal. 2) Adjustment Lens focus and Electric provisionally. 3) Set the convergence on RESET. a.Adjustment mode:Press the SVC key and then press the /M key.
  • Page 12 All manuals and user guides at all-guides.com 2. Adjustment 3) Reset the data in convergence adjustment mode,quit the mode. 1) Operate adjustment about Red,Green,Blue centering Adjustment Mode : Press the ÒSVCÓ key and then /M key. magnet. Data reset : Press the Ò5Ó key and then OK key. 2) SGS-THOMSON Convergence assy Adjustment mode cancellation :Press the /M key.
  • Page 13 All manuals and user guides at all-guides.com 12) L-VL(Lower Vertical Linearity) 2. G-lens Adjustment Adjust vertical linearity of lower screen 1) Rotate the lens until the chromatic haze changes from blue to red. 13) VL (Vertical Linearity) 2) Viewing the all screen, in no case of the chromatic aberration Adjust the top/bottom size of circle to be same in the EU 05CH.
  • Page 14 All manuals and user guides at all-guides.com Convergence Adjustment 4. Auto convergence Convergence is based on the auto adjustment using PC and 1. Preliminary steps Camera while applying the THOMSON convergence Assy and if need,adjust manually like below method. This adjustment should be performed after warming up 60 minutes.
  • Page 15 All manuals and user guides at all-guides.com 3)If not,press SVC key on R/C to enter adjustment mode and then press the YELLOW key to move into ÔSERVICE Auto-Convergence Check ADJUSTMENT 5Õ 1)Check the Auto-Convergence in PAL/NTSC mode separating. 4)Adjust M-HOR and M-VER so that left/right space to be 2)Press the SVC key on R/C for adjustment and press the symmetry.
  • Page 16 All manuals and user guides at all-guides.com Convergence Adjustment Mode - SVC -> / / M -> MENU * This Mode is for engineering. So,donÕt 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) ItÕs same 9,1,OK.
  • Page 17 All manuals and user guides at all-guides.com SVC Adjustment mode & Initial data Range Menu Description Default DC-TR DC transmission control 1. White Blalane adjustment data (IC:CXA2100) LRGB2 RGB2 output level control Menu Description Range Default DL-PA DElay Line switching Red Drive SHPF0 Sharpness f0...
  • Page 18 All manuals and user guides at all-guides.com 6.OPTION Data Adjustment Range Description Default Range Description Default 1: With Teletext 200 PRO 1: 200 Program(CHINA Only) TEXT 0: Without Teletext(CHINA) 0: 100 Program 1: RF 54% Modulation INput TSEAR 1: With TURBO Search option3 SCART 0: Without TURBO Search...
  • Page 19 All manuals and user guides at all-guides.com State Language Function Default 0:ENG Only English 1:EU 5EA English/German/French/Italy/Spanish 2:EU ETC Pol./Hungary/Czecho/Russia/Eng 3:PARSI English/Parsi LANG 4:ARAB URDU English/French/Arab+Urdu 5:English+Hindi English/Hindi 6:English+I+M+V English/Indonesian/Malaysian/Vietnamese 7:English+THAI English/Thai 8:English+China English/China 0:West Europe English/French/Swedish/Czech/German/Spanish/Italian 1:East Europe Polish/French/Swedish/Czech/German/Slovenian/Italian/Rumanian option4 English/French/Swedish/Turkish/German/Spanish/Italian 2:Turkey EU...

  • Page 20: Trouble Shooting

    All manuals and user guides at all-guides.com TROUBLE SHOOTING - 20 -...
  • Page 21 All manuals and user guides at all-guides.com - 21 -...
  • Page 22 All manuals and user guides at all-guides.com - 22 -...
  • Page 23 All manuals and user guides at all-guides.com - 23 -...
  • Page 24 All manuals and user guides at all-guides.com - 24 -...
  • Page 25 All manuals and user guides at all-guides.com - 25 -...
  • Page 26 All manuals and user guides at all-guides.com - 26 -...
  • Page 27 All manuals and user guides at all-guides.com - 27 -...

  • Page 28: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM SIGNAL(RT -) - 28 -...
  • Page 29 All manuals and user guides at all-guides.com BLOCK DIAGRAM SIGNAL(RE/RL-) - 29 -...
  • Page 30 All manuals and user guides at all-guides.com BLOCK DIAGRAM IC401,406 B+(115V) B+(105V ) KIA358 H OUT H-DRIVE DUMMY H-DF H-DRIVE Q402 H-DY TRANS Q403 IRFIBC206 T405 T401 2SC5446 FOCUS FOCUS PACK HV OUT HVDRIVE HV DRIVE Q413 TRANS T403 BLOCK Q416 IRFIBC20G T402...
  • Page 31 All manuals and user guides at all-guides.com MEMO - 31 -...

  • Page 32: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD MAIN1 - 32 -...
  • Page 33 All manuals and user guides at all-guides.com COMPONENT LOCATION GUIDE(MAIN1) C001..A5 C202 ..G4 E007 ..F1 J40 ..B2 J111 ..G3 J218 ..G4 Q602 ..D2 R113 ..G5 R624 ..D2 J112 ..G3 J219 ..G4 Q603 ..E2 R114..F5 R625 ..C1 C002..B5 C203..F3 E008 ..F1 J41 ..B1 C003..B5 C205 ..G4...
  • Page 34 All manuals and user guides at all-guides.com MAIN2 (DEF) - 34 -...
  • Page 35 All manuals and user guides at all-guides.com COMPONENT LOCATION GUIDE(DEF) R40D ..E5 C401..A2 C480..F1 E421..B1 G454 ..D1 J455..F2 P408C ..C2 R435..E1 E422..C1 G455 ..B1 J456 ..B2 P408D ..C2 R436..E1 R40E ..E5 C402..A2 C481..E2 R40F ..E5 C403 ..D3 C482..E2 E423..D1 G456 ..C1 J457 ..E2 P409A ..C2 R437..E4...
  • Page 36 All manuals and user guides at all-guides.com SMPS - 36 -...
  • Page 37 All manuals and user guides at all-guides.com COMPONENT LOCATION GUIDE(SMPS) G805 ..B5 G863..F4 IC802 ..C3 J851..F5 P850B ..A4 R868 ..G4 C801 ..D5 C868 ..C4 D839 ..G2 IC803 ..C1 J854..F2 P850C ..A4 R869 ..G4 C802 ..D5 C869 ..C3 D867 ..G4 G806 ..B4 G865..F4 P850D ..A4 R870..E3...
  • Page 38 All manuals and user guides at all-guides.com CONV-OUT - 38 -...
  • Page 39 All manuals and user guides at all-guides.com POWER S/W PRE-AMP CONTROL TACT SW SIDE AV - 39 -...
  • Page 40 All manuals and user guides at all-guides.com VM (TOP) VM (BOTTOM) - 40 -...
  • Page 41 All manuals and user guides at all-guides.com CONVERGENCE (TOP) CONVERGENCE (BOTTOM) - 41 -...
  • Page 42 All manuals and user guides at all-guides.com MICOM (TOP) MICOM (BOTTOM) - 42 -...
  • Page 43 All manuals and user guides at all-guides.com 100HZ (TOP) 100HZ (BOTTOM) - 43 -...
  • Page 44 All manuals and user guides at all-guides.com AV (TOP) AV (BOTTOM) - 44 -...
  • Page 45 All manuals and user guides at all-guides.com AUTO CVG SENSOR(BOTTOM) AUTO CVG SENSOR(TOP) - 45 -...
  • Page 46 All manuals and user guides at all-guides.com CONVERGENCE INTERFACE LED TACT SW CONTROL INTERFACE(POWER) INTERFACE(CONTROL) - 46 -...
  • Page 47 All manuals and user guides at all-guides.com MEMO - 47 -...

  • Page 48: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW(RT-44/49NZ21RB) - 48 -...

  • Page 49: Exploded View Parts List

    All manuals and user guides at all-guides.com The components identified by mark EXPLODED VIEW PARTS LIST critical for safety. Replace only with part number specified. Part No. Description 44Ó 49Ó 3680V00048B 3680V00048A LENS. 4810V00666C 4810V00666C BRACKET,PRT ASSY BLUE 4810V00666B 4810V00666B BRACKET,PRT ASSY GREEN 4810V00666A 4810V00666A...
  • Page 50 All manuals and user guides at all-guides.com EXPLODED VIEW(RT-56NZ21RB) - 50 -...
  • Page 51 DY,QPC-E10901A 07 SHENG CHANG 31.5KHZ 2H 174-222H CORDASSY POWER(174-219A,L=100)SAA 3091V00A35D CABINET ASSEMBLY,MP015D UPPER 3091V00449B CABINET ASSEMBLY,MP015D 3 SCART 3211V00086E FRAME ASSEMBLY,FRONT LOWER RT-56NZ21RB LG(SILVER) 4778V00012A LEG,CASTER HN-64A10 POLY URETHANE 55.4MM 3350V00017A SCREEN,DNP NON PJT NON NON 3790V00298R WINDOW,FILTER X2-56W NON NON 4980V00287D SUPPORTER ASSY, LENS&PRT...

  • Page 52: Replacement Parts List

    All manuals and user guides at all-guides.com The components identified by mark critical for safety. REPLACEMENT PARTS LIST Replace only with part number specified. LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC, KIA7805API 3P TO-220 ST REGULA IC409 0IKE780500Q IC410...
  • Page 53 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q004 0TR387500AA TR,CHIP 2SC3875S(ALY) Q208 0TR387500AA TR ,CHIP 2SC3875S(ALY) 0TR319809AA TR,BIPOLARS,KTC3198(KTC1815) TP TO92 5 0TR387500AA TR ,CHIP 2SC3875S(ALY) Q004 Q209 TR,BIPOLARS,KTC3198(KTC1815) TP TO92 5 TR ,CHIP 2SC3875S(ALY) Q005 0TR319809AA...
  • Page 54 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q508 0TR387500AA TR,CHIP 2SC3875S(ALY) 0TR319809AA TR,BIPOLARS KTC3198(KTC1815) TP TO92 5 0TR387500AA TR,CHIP 2SC3875S(ALY) 0TR319809AA TR,BIPOLARS KTC3198(KTC1815) TP TO92 5 Q509 TR,CHIP 2SC3875S(ALY) Q510 0TR387500AA 0TR319809AA TR,BIPOLARS KTC3198(KTC1815) TP TO92 5...
  • Page 55 All manuals and user guides at all-guides.com LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D441 0DD100009AQ DIODE,RECTIFIERSRP1HV(1) TP SANKEN D904B 0DR210009AC DIODE,RECTIFIERS BAV21 TP DO35 200V 0.2 0DD400509AA DIODE,RECTIFIERS1N4005 TP 0DR210009AC DIODE,RECTIFIERS BAV21 TP DO35 200V 0.2 D442 D904G DIODE,SWITCHING 1SS133 T-72 TP DO34...
  • Page 56 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 60 All manuals and user guides at all-guides.com The components identified by mark For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety.
  • Page 61 All manuals and user guides at all-guides.com 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 62 P003A 387-A08A CONNECTOR ASSY,8P (L=100) PSVM1B 366-932B CONNECTOR,WAFER 2.5MM 3P S (STI P004 366-922M CONNECTOR,WAFER 2.5MM 13P GIL-G LG CABLE R/A ( PSVM2 366-922B CONNECTOR,WAFER 2.5MM 3P R/A (B P004EP 366-932D CONNECTOR,WAFER 2.5MM 5P GIL-G LG CABLE S (STI PSVM2A 366-932B CONNECTOR,WAFER 2.5MM 3P S (STI...
  • Page 63 All manuals and user guides at all-guides.com 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 64 All manuals and user guides at all-guides.com 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 65 All manuals and user guides at all-guides.com 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 66 All manuals and user guides at all-guides.com The components identified by mark For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film critical for safety.
  • Page 67 All manuals and user guides at all-guides.com 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 68 140-289A SWITCH,POWER SDDF3PASP013 LG C&D UL/C FB816 125-022K FILTER,EMC FERRITE 1UH TAPING 140-313B 125-022K FILTER,EMC FERRITE 1UH TAPING SWT1 SWITCH,TACT 2LEAD 160G(TA) LG C&D NON FB818 SWT2 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON FB901B 125-123A FILTER,EMC BFD3565R2F(TAPING) SWT3 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON...
  • Page 69 SPARK GAP,AXIAL WSP-301M 300V 20% AXIAL TYPE 5 SG903R 6918VAX002D SPARK GAP,AXIAL WSP-301M 300V 20% AXIAL TYPE 5 ACCESSORIES 3828VA0372D MANUAL,OWNERS MP015D AP LG EN 092R/U TX 395A 6710V00092R REMOTE CONTROLLER,MP015D TXT - 47KEY 3890V01415L BOX,49NZ10 49 DWR2 1292-688 3890V01579A...
  • Page 70 All manuals and user guides at all-guides.com P/NO:3854VA0094D-S1(1/2) 2003.03.13...
  • Page 71 All manuals and user guides at all-guides.com P/NO:3854VA0094D-S1(2/2) 2003.03.13...
  • Page 72 All manuals and user guides at all-guides.com P/NO:3854VA0094D-S2(1/2) 2003.03.13...
  • Page 73 All manuals and user guides at all-guides.com P/NO:3854VA0094D-S2(2/2) 2003.03.13...
  • Page 74 All manuals and user guides at all-guides.com P/NO:3854VA0094D-S3 2003.03.13...

  • Page 75: Svc. Sheet

    All manuals and user guides at all-guides.com SVC. SHEET : 3854V A0094D-S1 3854V A0094D-S2 3854V A0094D-S3...

This manual is also suitable for:

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