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LG Electronics RT-29FB50VB/VE manual

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Table of contents for the manual

  • Page 1

    COLOR TV SER VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : MC-022A MODEL:RT -29FB50RB/RE/RP/RX MODEL: RT -29FB50VB/VE website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html Feb.,2003 Printed in Korea P/NO : 3828VD0118Z[...]

  • Page 2

    - 2 - CONTENTS Contents ................................................................................................................. 2 Saf ety Pr ecautions ............................................................................................3 Specifications ................................................................................[...]

  • Page 3

    - 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by i n 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-RADIATIO[...]

  • Page 4

    - 4 - SPECIFICA TIONS Note : Specification and others are subject to change without notice for improvement. O Video input system: PAL-B/G, D/K, I/I SECAM-B/G, D/K/L/L’ NTSC M NTSC 4.43(AV) NTSC- M/PAL M-N O Intermediate Frequency (Unit : MHz) VISION IF : 38.9MHz,33.9MHz(SECAM-L’) COLOR IF : 34.47MHz(4.43) 35.32MHz(3.58) : NTSC-M VIF-4.25000MHz [...]

  • Page 5

    - 5 - DESCRIPTION OF CONTROLS All the functions can be controlled with the remote control handset. Some functions can also be adjusted with the buttons on the front panel of the set. Remote control handset Before you use the remote control handset, please install the bat- teries. See the next page. 1. POWER switches the set on from standby or off t[...]

  • Page 6

    - 6 - 14. OK accepts your selection or displays the current mode. 15. LIST displays the programme table. 16. EYE/ * (option) switches the eye function on or off. 17. SLEEP sets the sleep timer . 18. Q.VIEW returns to the previously viewed programme. selects a favorite programme. 19. PIP BUTT ONS (option) PIP switches the sub picture on or off. PR +[...]

  • Page 7

    - 7 - 1. MAIN POWER switches the set on or off. 2. POWER/ST ANDBY INDICA TOR illuminates brightly when the set is in standby mode. dims when the set is switched on. 3. MENU selects a menu. 4. OK accepts your selection or displays the current mode. 5. D D / E E (Programme Up/Down) selects a programme or a menu item. switches the set on from standby [...]

  • Page 8

    - 8 - Fig. 2-1 Fig. 2-2 CPT PCB Remove Screws MAIN PCB DISASSEMBL Y INSTRUCTIONS Important note This set is disconnected from the power supply through the converter transformer. An isolating transformer is necessary for service operations on the primary side of the converter transformer. Back Cabinet Removal Remove the screws residing on the back c[...]

  • Page 9

    - 9 - 1. Safety Precautions 1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to prevent the risk of electric shock and protect the instrument. 2. Never disconnect leads while the TV receiver is on. 3. Don't short any portion of circuits while power is on. 4. The adjustment must be done [...]

  • Page 10

    - 10 - 6. Deflection Data Adjustment (Line SVC-2) NOTE : How to enter into the Line Service Mode with a remocon. 1.Power off. 2.Press the Red button. 3.Press the Green button. 4.Press the Yellow button. 5.Press the Cyan button. 6.Press the OK button. 7.Power On. 6-1. Preparation for Deflection Adjustment 1) At adjustment mode(IN-START button on rem[...]

  • Page 11

    - 11 - ITEM RANGE Z60Hz W60Hz N60Hz Z50Hz W50Hz 25” 29” 25” 29” 29” 29” 29” 29” 25” 25” 25” 25” N50Hz VA VL SC VS HS EW ET EP ES EC PIP P 008A 00F8 00E1 0733 001C 0C59 07F3 07BF 085F 073E 0009 -22 0 0 0 0 0 0 25 29 0 0 -22 0 0 0 0 0 0 25 29 0 0 14 0 0 0 0 0 0 -16 29 0 0 14 0 0 0 0 0 0 -16 29 0 0 0 -5 0 43 4 15 -6 -2 0 12 0 0[...]

  • Page 12

    - 12 - 7. SVC Data & PSM,SSM Data. PICTURE SETTING DATA (LINE SVC-3) Menu DVCO(Digital VCO) IBRM(BLACK CURRENT) WDRM(WHITE CURRENT) BCLT(BCL THERSHOLD BCLTM(BCL TIME) BCLGA(BCL GAIN) SVGA(SVM GAIN) SVDEL(SVM DELAY) SVD1(SVM DELAY1) LDLY(L DELAY) DSCC(Discharge Sample) DSCV(Vertical Discharge) 0~1FFH 0~3FFH 0~7FFH 0~1FFH 0~1FFH 0~01FF 0~01FF 00C[...]

  • Page 13

    - 13 - 8-3. OPTION 1 Function 8-4. OPTION 2 Function Only Austrailia EYE DEG TILT KEY CH+AU ACMS TOP WIDE Option Code 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Function Remark 4:3 NORMAL MODEL WIDE FLAT MODEL W/O TOP(FLOP BASIC) WITH TOP Without ACMS funtion With ACMS funtion ALL NATION Frequency Table WITHOUT EYE WITH EYE Without DEGAUSSING With DEGAUSSING [...]

  • Page 14

    - 14 - CODE 0 1 2 3 0 1 2 0 1 2 3 4 5 0 1 2 0 1 2 3 0 1 2 3 4 5 0 1 0 1 2 3 0 1 2 3 0 FUNTION English Only(Eng.) Arab(Eng/Fr/Arab) Urdu(Eng/Fr/Arab/Urdu) Asia(Eng/Fr/Indonesia) English Only(Eng.) Arab(Eng/Fr/Arab) Farsi(Eng/Fr/Arab/Farsi) English Only(Eng.) Arab(Eng/Fr/Arab) Urdu(Eng/Fr/Arab/Urdu) Arab all(Eng/Fr/Arab/Urdu/Farsi) Farsi ONly(Eng/Far[...]

  • Page 15

    - 15 - CODE 0 1 2 3 5 8 0 1 2 3 5 0 1 2 6 0 1 2 6 0 1 2 4 5 6 FUNTION WEST-EU EAST-EU Turkey Cyrillic3 Arab/English Farsi/English WEST-EU EAST-EU Turkey Cyrillic3 Arab/English WEST-EU EAST-EU Turkey Cyrillic3 WEST-EU EAST-EU Turkey Cyrillic3 WEST-EU EAST-EU Turkey Cyrillic3 Arab/English Farsi/English Farsi only 3834 only(W/TXT) Arab-Asia 3834 only([...]

  • Page 16

    BLOCK DIAGRAM - 16 - MAIN SPEAKER MAIN SPEAKER L R L R TUNER -1 MAIN TUNER - 2 FOR PIP (W/O PIP Option) A V - 1 A V - 2 A V - 3 Y&C A V -1 A V -2 SIF AF(SECAM L) CXA CXA - - 2040 2040 A V A V SWITCH SWITCH H/P OUT SDA SDA - - 9489X 9489X PIP Processor PIP -CVBS SCART -1 RGB & FB SELECTED CVBS FOR PIP Y , Pb ,Pr SELECTED CVBS FOR MAIN H- SYN[...]

  • Page 17

    - 17 - 1 1 1 10 V(Flat) 120V (Normal) 12 V 12 33 V 14 16 18 17 V Sound Vcc (35V OPT .) 8 V 278 R05 LD3.3V KA78A09 78 L05 TDA -7297 Sound AMP H - DRIVE FBT PRE -AMP EEPROM LED TDA6109 MSP -34XX (Sound Processor) 7805 T uner (Main) VCT3834 LD3.3V TDA - 2006 (Mono Opt.) SDA - 9489X (PIP Processor) CXA - 2040AQ (Video Switch) EYE(Opt.) T ilt(Opt.) STK3[...]

  • Page 18

    TROUBLE SHOO TING - 18 - RF - STEREO Selected correct system In menu Check the waveform At pin 17 of TU101 Check the waveform At pin 24,25 of IC661 Check the waveform At pin 4,12 of IC602 Check the V oltage At pin 6, 7 of IC602 Check the waveform At pin 1, 2, 14, 15 of IC602 Check the V oltage At pin 3,13 of IC602 NO Check / Replace TU 101 NO NO NO[...]

  • Page 19

    - 19 - NO RASTER CHECK B+ At D807 cathode Is the voltage at Pin 25, 54 of IC01 3.3V? Check Fuse of AC line Check / Replace Fuse , DB801 Check the V oltage Of C804 Check the V oltage Pin 3 of IC801 Check / Replace IC801, IC803, IC802 Check / Replace Fuse DB801 Check pin 24 Of IC01(H - Out) Check Q402 Collector waveform Check T401 & each pin volt[...]

  • Page 20

    - 20 - No Picture / No Sound Is any OSD displayed? Check receiving system in MENU & execute Auto - Program. Does the auto - Program Operate properly . Store on manual - program MENU Check 5V , 33V & IIC Bus Line Of T uner . Is the CVBS signal OK. (IC01 pin10 or 22) Check R,G,B signal At IC01, pin42,43,44 Check / Replace CPT Board component [...]

  • Page 21

    - 21 - A V Stereo Select correct system In menu Check the connection Of A V equipment Check the the waveform At pin47 of IC661 Check TU101 T uner Check the waveform At pin 24, 25, of IC661 Check waveform At pin 4, 12 of IC602 Check the voltage At pin6,7 of IC602 Check the waveform At pin 1,2,14,15 of IC602 Check the voltage Of pin16,20 Check / Repl[...]

  • Page 22

    - 22 - EXPLODED VIEW 913 170 150 112 510 943 400 174 520 330 320 120 300 121 310 104 530 700[...]

  • Page 23

    - 23 - EXPLODED VIEW P AR TS LIST LOCA. NO PART NO DESCRIPTIONS 104 343-B52A SUPPORTER,PCB 112 6341V29009A CPT ASSEMBLY,A68QCU759X ,5006C DY S-FOCUS 6334V29003A CPT 6334V29003B CPT 120 120-C77G SPEAKER,FULLRANGE C122P02K1459 MOTOR JOY 8 OHM 10/15W 121 4810V00088A BRACKET,SPEAKER 150 6140VC2005F COIL,DEGAUSSING 29 FLAT ASSY (W) SELLA TECH 2001R+D07L[...]

  • Page 24

    - 24 - REPLA CEMENT P AR TS LIST LOCA. NO P ART NO DESCRIPTION “ D803 “ D804 “ D815 “ D857 “ D858 “ D860 D861 “ D862 D863 “ D864 “ D865 D866 “ D867 “ D901 D902 D903 D904 D920 “ DB801 LD01 ZD101 ZD102 ZD121 ZD302 ZD303 ZD401 ZD402 “ ZD501 ZD601 ZD610 ZD910 ZD91 1 ZD912 Q06 Q103 Q108 Q1 10 Q1 1 1 Q1 12 Q180 Q181 Q182 0DR1000[...]

  • Page 25

    - 25 - LOCA. NO P ART NO DESCRIPTION Q183 Q184 Q185 Q186 Q187 Q201 Q202 Q301 Q302 Q303 Q401 Q402 Q505 Q506 Q507 Q508 Q509 Q621 Q671 Q672 Q806 Q807 Q853 Q855 Q856 Q856 Q901 QP01 QP02 QP03 QP04 QP05 C01 C02 C03 C04 C06 C07 C08 C10 “ C102 C103 C104 C105 C106 C107 C108 C109 C1 1 C1 10 “ C1 1 1 C1 14 0TR534309AA 0TR534309AA 0TR198009BA 0TR198009BA 0[...]

  • Page 26

    - 26 - LOCA. NO P ART NO DESCRIPTION C31 1 C401 C401 C402 C403 C405 C406 C407 C408 C409 C410 C41 1 “ C413 C415 C416 C419 C420 C422 C501 C502 C503 C504 C505 C506 C508 C509 C510 “ C51 1 C512 C513 C514 C515 C516 C517 C518 C520 C521 C522 C523 C559 C561 C562 C563 C564 C565 C568 C601 C604 C605 C606 “ C612 C621 C622 0CQ1031N509 0CE474DK618 0CE105DK6[...]

  • Page 27

    - 27 - LOCA. NO P ART NO DESCRIPTION C860 C861 C862 C862 C864 C865 C867 C868 C871 C872 C873 C874 C874 C880 C901 C902 C903 C904 C920 C921 C922 C923 C924 C925 C926 C927 C928 C929 C930 CP08 CP09 CP10 CP101 CP104 CP105 CP106 CP108 CP109 CP1 1 CP1 12 CP12 CP13 CP21 CP22 CP25 CP26 CP27 CP29 CP30 CP32 CP33 J125 J134 J219 0CE108BF618 0CE108DF618 0CE105DK61[...]

  • Page 28

    - 28 - LOCA. NO P ART NO DESCRIPTION P802B P901 P903 P920 PP501 F851 F853 F854 F855 FR402 FR403 FR406 FR406 FR413 FR901 J128 J130 J137 J148 J149 J151 J163 J167 J170 J175 J192 J207 J210 J215 J216 J317 J318 R01 R02 R06 R06 R07 R08 R09 R10 R102 R103 R104 R1 1 R1 10 R1 1 1 R1 16 R1 19 R12 R123 R126 R126 R127 R127 366-009D 366-009D 366-009D 366-932B 366[...]

  • Page 29

    R313 R315 R316 R317 R319 R320 R321 R322 R323 R324 R325 R326 R327 R328 R330 R331 R402 R403 R404 R405 R408 R409 R410 R41 1 R413 R414 R415 R416 R417 R419 R42 R420 R43 R44 R45 R46 R47 R48 R49 R50 R509 R51 R512 R513 R515 R517 R518 R519 R523 R525 R526 R528 R531 R532 R533 R534 R537 R541 R542 R543 R544 R545 R546 R548 R549 R550 R552 R553 R554 R556 R557 R558[...]

  • Page 30

    - 30 - LOCA. NO P ART NO DESCRIPTION R833 R850 R852 R858 R862 R863 R864 R865 R866 R867 R868 R869 R871 R871 R872 R873 R873 R90 R901 R902 R903 R904 R905 R906 R907 R908 R909 R91 R910 R91 1 R912 R913 R921 R922 R923 R924 R925 R926 R94 R95 RP01 RP02 RP03 RP04 RP07 RP08 RP1 1 RP1 10 RP1 1 1 RP12 RP122 RP13 RP14 RP32 RP33 0RP0050H709 0RD0471F609 0RS0102K61[...]

  • Page 31

    P/NO:3854VA0098A-S(1/2) 2002.03.25[...]

  • Page 32

    COMPONENT LOCA TION GUIDE C01 ..........B4 C02 ..........B4 C03 ..........B4 C04 ..........B4 C06 ..........E1 C07 ..........B4 C08 ..........B4 C10 ..........B3 C11 ..........B3 C14 ..........B4 C16 ..........B4 C17 ..........B4 C22 ..........B4 C23 ..........C4 C24 ..........C4 C25 ..........C4 C27 ..........B4 C28 ..........C4 C29 ..........B4 C[...]

  • Page 33

    SV C. SHEET : 3854V A0098A-S SV C. SHEET :[...]