LG RT-62NA31RB Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Projection TV
  5. RT-62NA31RB
  6. Service manual
LG RT-62NA31RB Service Manual

LG RT-62NA31RB Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
PROJECTION TV
SERVICE MANUAL
CHASSIS : MP-015C
MODEL : RT-62NA31RB/RP
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.html

Advertisement

Table of Contents
loading

Related Manuals for LG RT-62NA31RB

Summary of Contents for LG RT-62NA31RB

  • Page 1 PROJECTION TV SERVICE MANUAL CHASSIS : MP-015C MODEL : RT-62NA31RB/RP CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. TV/AV MENU...

  • Page 2: Table Of Contents

    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 EXPLODED VIEW PARTS LIST..............49 REPLACEMENT PARTS LIST ..............50 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 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. incidence of component damage caused by static by static NOTE: If unforeseen circumstances create conflict between the electricity.
  • Page 5 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. Clip each fuse or resistor lead at top of the circuit board component lead and the foil.

  • Page 6: Specifications

    ‘-RP ’ : Without 6) Warm up TV set for more than 20min. before the RL-62NA31RB France Teletext measurement. Test and Inspection Method 1) performance:Follow the Standard of LG TV test 2) Standards of Etc requirement Model Market Remark Appliance RT-62NA31RB...
  • Page 7 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 COMPONENT1 :480i/L/R Rear COMPONENT2 :480p/L/R S-Video Input Side 1,Rear(SCART) 1 SCART (Rear,RE,RL model) Full SCART(with RGB Input) :1 Half SCART : 1 (AV In/out) Half SCART : 1 (AV In,YC In) Local Key POWER,MENU,VOL(...

  • 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 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. I/II TV/AV 12. TELETEXT BUTTONS (option) These buttons are used for teletext. TURBO SOUND PICTURE...
  • Page 10 Front panel • RT-62NA31 TV/AV MENU INDEX STAND BY POWER ON (Side panel) TV/AV MENU INDEX STAND BY POWER ON 3 4 5 1. MAIN POWER (Volume Up/Down) switches the set on or off. adjusts the volume. adjusts menu settings. 2.

  • Page 11: Adjustment Instructions

    ADJUSTMENT INSTRUCTIONS Raster Slope/Focus 1th Adjustment 45mm 1. Preliminary steps 1) Receive the EU 05 CH signal.(PR 1:PAL B/G 175.25MHz) 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 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 “SVC” key and then /M key. magnet. Data reset : Press the “5” key and then OK key. 2) SGS-THOMSON Convergence assy Adjustment mode cancellation :Press the /M key.
  • Page 13 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 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 3) If not,press SVC key on R/C to enter adjustment mode and Check the Option Adjustment then press the YELLOW key to move into ‘SERVICE 1) Check the OPTION1~4 data of attach 6 is well recorded. ADJUSTMENT 5’ 2) The option value of each suffix is started on JOB EXP of 4) Adjust M-HOR and M-VER so that left/right space to be 3141VMN chassis Assy.
  • Page 16 Convergence Adjustment Mode - SVC -> / / M -> 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,OK.
  • Page 17 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 Green Drive CB-F1 Input1 CB signal DC Offset Blue Drive...
  • Page 18 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(Other Contries) 1: RF 54% Modulation INput 1: With TURBO Search TSEAR option3 SCART 0: RF 100% Modulation INput 0: Without TURBO Search 1: China+AUST.Channel Table I/II SV...
  • Page 19 State Language Function Default English 0:ENG Only 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 English/Thai 7: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 2:Turkey EU English/French/Swedish/Turkish/German/Spanish/Italian 3:EAST EU2 English/Hungarian/Serbian/Czech/German/Polish/Spanish/Italian/ Rumanian 4:Cyrillic 1 5:Cyrillic 2...

  • Page 20: Trouble Shooting

    Trouble Shooting - 20 -...
  • Page 21 - 21 -...
  • Page 22 - 22 -...
  • Page 23 - 23 -...
  • Page 24 - 24 -...
  • Page 25 - 25 -...
  • Page 26 - 26 -...
  • Page 27 - 27 -...

  • Page 28: Block Diagram

    BLOCK DIAGRAM SIGNAL(RT -) - 28 -...
  • Page 29 BLOCK DIAGRAM SIGNAL(RE/RL-) - 29 -...
  • Page 30 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 2SD1887 DYNAMIC FOCUS PWM PULSE P411 9V p-p Q433...
  • Page 31 MEMO - 31 -...

  • Page 32: Printed Circuit Board

    PRINTED CIRCUIT BOARD MAIN1 - 32 -...
  • Page 33 COMPONENT LOCATION GUIDE(MAIN1) J218 ..G4 Q602 ..D2 R113 ..G5 R624 ..D2 C001..A5 C202 ..G4 E007 ..F1 J40 ..B2 J111 ..G3 R114..F5 R625 ..C1 C002..B5 C203..F3 E008 ..F1 J41 ..B1 J112 ..G3 J219 ..G4 Q603 ..E2 C205 ..G4 F001 ..B5 J42 ..B4 J113 ..G3 J220 ..G4 Q604 ..E2...
  • Page 34 MAIN2 (DEF) - 34 -...
  • Page 35 COMPONENT LOCATION GUIDE(DEF) C401..A2 C480..F1 E421..B1 G454 ..D1 J455..F2 P408C ..C2 R435..E1 R40D ..E5 C481..E2 E422..C1 G455 ..B1 J456 ..B2 P408D ..C2 R436..E1 R40E ..E5 C402..A2 G456 ..C1 J457 ..E2 P409A ..C2 R437..E4 R40F ..E5 C403 ..D3 C482..E2 E423..D1 P409B ..C2 R438..F4 R40G..E5 C404 ..C1...
  • Page 36 SMPS - 36 -...
  • Page 37 COMPONENT LOCATION GUIDE(SMPS) J851..F5 P850B ..A4 R868 ..G4 C801 ..D5 C868 ..C4 D839 ..G2 G805 ..B5 G863..F4 IC802 ..C3 G865..F4 IC803 ..C1 J854..F2 P850C ..A4 R869 ..G4 C802 ..D5 C869 ..C3 D867 ..G4 G806 ..B4 R870..E3 G807 ..B4 G866..F1 IC805 ..C1 J867..F5 P850D ..A4 C803..B5...
  • Page 38 CONV-OUT - 38 -...
  • Page 39 POWER S/W PRE-AMP CONTROL2 SIGNAL CONTROL - 39 -...
  • Page 40 VM (TOP) VM (BOTTOM) - 40 -...
  • Page 41 CONVERGENCE (TOP) CONVERGENCE (BOTTOM) - 41 -...
  • Page 42 MICOM (TOP) MICOM (BOTTOM) - 42 -...
  • Page 43 100HZ (TOP) 100HZ (BOTTOM) - 43 -...
  • Page 44 AV (TOP) AV (BOTTOM) - 44 -...
  • Page 45 AUTO CONVERGENCE SIDE A/V POWER CONTROL - 45 -...
  • Page 46 CONVERGENCE INTERFACE CONTROL - 46 -...
  • Page 47 MEMO - 47 -...

  • Page 48: Exploded View

    EXPLODED VIEW(RT-62NA31RB/RP) - 48 -...

  • Page 49: Exploded View Parts List

    SUPPORTER, SCREEN(R/L) SECC RT-62NA31 4980V00538A SUPPORTER, SCREEN SECC RT-62NA31 3091V00A92A CABINET ASSEMBLY, RT-62NA31 MP015C 3091V00A94A CABINET ASSEMBLY, RT-62NA31 3090V00360 LG . WOOD 3211V00083A FRAME ASSEMBLY ,RT-62NA31 3210V00135 LG LOWER 3211V00083B FRAME ASSEMBLY, FRONT LOWER RT-62NA31 HIPS (LGEAP) 4778V00012A LEG, CASTER HN-64A10 POLY URETHANE 55.4MM 3350V00024A SCREEN, KURARAY - 62NA31 62 GAIN 6.0...

  • Page 50: Replacement Parts List

    The components identified by mark critical for safety. Replace only with part number specified. REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION IC408 0IKE358000A IC,KIA358P DIP8 DUAL OP-AMP BK IC409 0IKE780500Q IC,KIA7805API 3P TO-220 ST 5V(=KIA7805PI) DLA801 0ISK100300A IC,DIODE MODULE(RU4AM+FMLG12S) LF816...
  • Page 51 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q002 0TR319809AA TR,KTC3198(KTC1815) TP TO92 50V 150MA Q205 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC TR,BSS83 TP NON N-CHANNEL S/W TR TR,CHIP 2SC3875S(ALY) KEC Q003 0TR830009BA Q2050 0TR387500AA 0TR319809AA TR,KTC3198(KTC1815) TP TO92 50V 150MA 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC Q003...
  • Page 52 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q503 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC Q933 0TR153500AA TR,2SA1535A BK TO220 -180V TR,KTC3198(KTC1815) TP TO92 50V 150MA TR,2SC3944A BK TO220 180V Q503 0TR319809AA Q940 0TR394400AA 0TR387500AA TR,CHIP 2SC3875S(ALY) KEC 0TR127409AB TR,KTA1274-Y TO-92L TP KEC Q504 Q950 Q505...
  • Page 53 LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION D435 0DS113379BA DIODE,1SS133 T-72 TP ROHM KOREA DO34 90V D901R 0DR210009AC DIODE, DO35 200V 0.2A 1A 50SEC 100A D437 0DS113379BA DIODE,1SS133 T-72 TP ROHM KOREA DO34 90V D902B 0DD060009AC DIODE,TVR06J TP - 600V - - 250NSEC - 0DD200009AH 0DD060009AC D440...
  • 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 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. digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 59 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 0LA0102K119 INDUCTOR,AXIAL LEAD10UH K 2.3*3.4 TP P411B 366-173G CONNECTOR ,2.5MM 8*2P AEPH-254 A/K R/A 0LA0102K119 INDUCTOR,AXIAL LEAD10UH K 2.3*3.4 TP CONNECTOR ,2.5MM 8P GIL-G LG CABLE . P418B 366-921G 6170VC0002A T401 TRANSFORMER,H-DRIVE EER-2619 366-921L CONNECTOR ,2.5MM 12P GIL-G LG CABLE .
  • Page 61 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 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 63 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 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 The components identified by mark For Capacitor & Resistors, CC, CX, CK, CN : Ceramic RD : Carbon Film critical for safety. the charactors at 2nd and 3rd CQ : Polyestor RS : Metal Oxide Film digit in the P/No. means as CE : Electrolytic RN : Metal Film Replace only with part number specified.
  • Page 66 LOCA. NO PART NO DESCRIPTION R943 0RS1800J607 180 OHM 1 W 5.00% TA62 SWT6 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON 47 OHM 1/6 W 5% TA52 SWITCH,TACT 2LEAD 160G(TA) LG C&D NON R944 0RD0472F609 SWT7 140-313B 0RD0271H609 2.7 OHM 1/2 W 5.00% TA52 140-313B SWITCH,TACT 2LEAD 160G(TA) LG C&D NON...
  • Page 67 FILTER,FERRITE 1UH TAPING ACCESSORIES L2028 6210TCT002B FILTER,ACB2012M-300-T TDK , CHIP BEAD,LCD FILTER,ACB2012M-300-T TDK , CHIP BEAD,LCD L2030 6210TCT002B 3828VA0367A MANUAL,OWNERS NEU LG EN 084T/V TX 125-022K FILTER,FERRITE 1UH TAPING L217 3828VA0367D MANUAL,OWNERS MP015C AP/ESTAR LG EN L218 125-022K FILTER,FERRITE 1UH TAPING...
  • Page 68 P/NO:3854VA0094C-S1(1/2) 2002.10.23...
  • Page 69 P/NO:3854VA0094C-S1(2/2) 2002.10.23...
  • Page 70 P/NO:3854VA0094C-S2(1/2) 2002.10.23...
  • Page 71 P/NO:3854VA0094C-S2(2/2) 2002.10.23...
  • Page 72 P/NO:3854VA0094C-S3 2002.10.23...

  • Page 73: Svc. Sheet

    SVC. SHEET : 3854V A0094C-S1 3854V A0094C-S2 3854V A0094C-S3...
  • Page 74 Mar., 2005 P/NO : 3828VD0133C Printed in Korea...

This manual is also suitable for:

Rt-62na31rp

Table of Contents