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COLOR TV
SERVICE 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

Содержание RT-29FB50RB

Страница 1: ...VICING 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 ...

Страница 2: ...ty Precautions 3 Specifications 4 Control Descriptions 5 Disassembly Instructions 8 Adjustment Instructions 9 Block Diagram 16 T rouble Shooting 18 Exploded View 22 Exploded View Parts List 23 Replacement Parts List 24 SVC Sheet ...

Страница 3: ...perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on positioin connect one lead of...

Страница 4: ...me memory 200 Programme memory W O TXT Model O Antenna input impedance VHF UHF 75 ohm unbalanced O Voice coil impedance 8 ohm O External In Output Audio In 0 5Vrms 3db over 10Kohm Audio Out 0 5Vrms 3db below 1Kohm Video In Out 1Vp p 3db 75ohm R G B In 0 7Vp p 3db O Feature Funtion Teletext TOP FLOF LIST AV Input Side or Front 1 Rear 2 Component Input Rear Opt PERI TV Connector AV Input SCART Opt R...

Страница 5: ...u settings 6 VCR BUTTONS option control a LG video cassette recorder 7 SSM Sound Status Memory recalls your preferred sound setting 8 I II option selects the language during dual language broadcast option selects the sound output 9 PSM Picture Status Memory recalls your preferred picture setting 10 TELETEXT BUTTONS option These buttons are used for teletext For further details see the Teletext sec...

Страница 6: ...ub pictures COLOURED BUTTONS These buttons are used for teletext only TELETEXT models or programme edit Battery installation The remote control handset is powered by two AA type batteries To load the batteries turn the remote control handset over and open the battery compartment Install two batteries as indicated by the polarity symbols and marked inside the compartment Note To avoid damage from p...

Страница 7: ... off 11 EYE option adjusts picture according to the sur rounding conditions 12 HEADPHONE SOCKET option Connect the headphone plug to this socket 13 AUDIO VIDEO IN SOCKETS AV3 Connect the audio video out sockets of external equipment to these sockets S VIDEO AUDIO IN SOCKETS S AV option Connect the video out socket of an S VIDEO VCR to the S VIDEO socket Connect the audio out sockets of the S VIDEO...

Страница 8: ...al 1 Pull out the CPT board from the CPT neck 2 Place the front cabinet on soft material not to mar the front surface or damage control knobs 3 Remove 4 screws securing the picture tube mounting brackets to the front cabinet 4 Carefully separate CPT from the front cabinet PICTURE TUBE HANDLING CAUTION Due to high vacuum and large surface area of picture tube great care must be exercised when handl...

Страница 9: ...ne B 2 Adjust the upper Focus volume of FBT for the best focus of area A 3 Repeat above step 1 and 2 for the best overall focus 5 Screen Voltage White Balance Adjustment 5 1 Adjustment of screen manually Using ADJ Remote Control 1 Receive the PAL or SECAM NTSC signal into RF mode regardless of channel 2 If you press the ADJ button in LINE SVC mode IN START button the LINE SVC mode changes to scree...

Страница 10: ...4 3 PAL 16 9 PAL ZOOM NTSC 4 3 NTSC 16 9 NTSC ZOOM 3 After finishing deflection adjustment press the ENTER button to enter or exit in SVC mode VL Vertical Linearity Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT VA Vertical Amplitude Adjust so that the circle of a digital circle pattern may be located within the effective scre...

Страница 11: ...B4 0840 0840 0000B 0050 00CF 0025 00BF 0000 009F 0600 0900 0000 003F 0400 0EFF 0700 08FF 06E0 0840 06A0 0AFF 0790 08E0 0790 08E0 ITEM RANGE Z50Hz N50Hz W50Hz VA VL SC VS HS EW ET EP ES EC PIP P 11 0 0 0 0 0 0 14 0 0 0 22 3 0 0 0 22 0 19 0 0 0 009A 00F3 00D0 0774 0019 0B96 07DE 07BF 085C 082B 0007 0050 00CF 0025 00BF 0000 009F 0600 0900 0000 003F 0400 0EFF 0700 08FF 06E0 0840 06A0 0AFF 0790 08E0 07...

Страница 12: ...aration for Adjustment 1 This decides funtion in accordance with model Press the SVC TX adjustment button IN START button at SVC mode then adjust the option at OPTION 1 2 3 4 mode 2 Mark the option adjustment data like 111 11 111 11 in BOM 8 2 Adjustment Method 1 Input data directly by the buttons corresponded with OPTION1 0 255 OPTION2 0 255 OPTION3 0 127 OPTION 4 0 255 2 Select each OPTION funct...

Страница 13: ...n SAVE DUAL SOUND Condition PHONE JACK SCART JACK NORMAL VOLUME CURVE RUSHED VOLUME CURVE Without DVD INPUT With DVD INPUT Without HOTEL OPTION With HOTEL OPTION MAX VOLUME TXT Model W O TXT Model 1 PIP or W O PIP 2 PIP CE RE MODEL CL RL MODEL CT RT MODEL 1 TUNER Model 2 PIP only 1 TUNER Model 2 PIP only PAL model ALL PIP SYS TBS WOOF AV2 MONO GAME Option Code 0 1 0 1 0 1 0 1 0 1 0 1 0 1 2 3 Funct...

Страница 14: ... Cyrilic E Russia EU EAST E Ger Rum Pin Hung Chez EU EAST All E Ger Rum Pol Hung Chez Russia English Only Eng EU 7 E Ger Fr Ita Spain Holand Port EU NORTH E Ger Fr Holand Swe Nor Den Fin Cyrilic E Russia EU EAST E Ger Rum Pin Hung Chez EU EAST All E Ger Rum Pol Hung Chez Russia English Only Eng EU 5 E Ger Fr Ita Spain English Only Eng Vietnam E Vietnam Hindi E Hindi China E China Eng Spain Port Sp...

Страница 15: ...nglish 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 W TXT WEST EU 3834 only W TXT EAST EU 3834 only W TXT 28 WIDE FLAT 3834 only W TXT OPTION TXT L ...

Страница 16: ...orizontal Deflection TO TO Cathode Cathode 0f 0f CPT CPT AT24C16 EEPROM I I 2 2 C Bus C Bus Tilt Control Tilt Tilt Controller TO TO TILT TILT COIL COIL VCT 3801 3804 3834 Main Control Processor MSP 34xxG Sound Processor TDA 6109 6107 JF R G B AMP R G B W O PIP CVBS H Out V Sinc Protect H H DY DY FBT FBT H Sinc V V DY DY VA H Out V Out TDA 7297 7266 Sound Amp TDA 2066 Mono Opt W O PIP AV1 2 3 Y C V...

Страница 17: ...TDA6109 MSP 34XX Sound Processor 7805 Tuner Main VCT3834 LD3 3V TDA 2006 Mono Opt SDA 9489X PIP Processor CXA 2040AQ Video Switch EYE Opt Tilt Opt STK396 110 VM IC 12V SMPS TRANS ST BY TRANS ST 5V 12V 9V 5V PIP AV SW OPT 7805 LD3 3V 5V Tuner Sub Relay VM 200V FBT LA 7845 V AMP 14V FBT EW AMP 28V FBT T803 T802 IC01 IC661 IC602 ICP01 ICP101 IC901 HIC920 ...

Страница 18: ... NO NO NO Check The Voltage At pin 16 33 46 of IC661 Check Replace Q671 672 Check Replace Q621 IC603 Check Replace F851 D862 Check Replace IC610 IC853 Check The voltage At pin of IC610 IC853 NO OK OK OK OK OK OK NO No Raster Sound OK Check the Heater voltage of CPT 6 6 5Vrms Check HV Screen Voltage of CPT Check IK Current of IC01 pin37 39 40 Check the Heater pulse of FBT T402 Check Replace CPT Boa...

Страница 19: ...C01 H Out Check Q402 Collector waveform Check T401 each pin voltage Check Replace T402 Is the voltage at pin3 15 45 IC02 5V Check the In out of IC855 IC851 Check the In out of IC06 IC07 Check IC01 Pin1 high Check Replace IC01 Check Replace IC01 Check Replace Q402 Check Replace T401 Check Replace IC01 IC03 Check the Voltage at D860 or D858 cathode Check Replace F853 F855 Normal Abnormal Ok 254 380 ...

Страница 20: ... IIC Bus Line Of Tuner Is the CVBS signal OK IC01 pin10 or 22 Check R G B signal At IC01 pin42 43 44 Check Replace CPT Board component Go to No Sound Picture OK Check IC01 pin37 42 43 44 IK R G B Check Replace IC01 Check 5V 33V IIC Bus Line Check Replace IC01 Tuner Check CVBS signal Line IC01 Check IK Signal at IC01 pin37 similar to CBVS No No No No No OK OK OK OK OK OK OK OK ...

Страница 21: ...he 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 Replace IC602 Check Replace Q621 IC603 Check the vpltage At pin3 13 of IC602 Replace IC 602 Check Replace F851 D862 OK AV OK OK OK OK OK OK NO NO NO NO NO NO OK ...

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

Страница 23: ... C SKD 3809V00321A BACK COVER ASSEMBLY 2PHONE 3809V00321B BACK COVER ASSEMBLY 40AF 1SCART 1PHONE 3809V00321C BACK COVER ASSEMBLY 510 6871VSMB26C PWB ASSEMBLY CPT 022A CPT VM 29 LG 6871VSMD76B PWB ASSEMBLY CPT SY CKD 022A 6871VSMN22B PWB ASSEMBLY CPT 022A 29 LG FLAT 520 6871VMMD20A PWB ASSEMBLY MAIN MC022A RT 29FB50RB 6871VMMD20B PWB ASSEMBLY MAIN MC022A RT 29FB50RP 6871VMMD19X PWB ASSEMBLY MAIN MC...

Страница 24: ...2SA1980Y TP AUK TR 2SC5343Y TP AUK TR 2SC5343Y TP AUK TR KTA1270 Y KEC TP TO92 50V 100MA TR 2SC5343Y TP AUK TR 2SC5343Y TP AUK TR 2SC5343Y TP AUK TR 2SA1980Y TP AUK TR 2SA1980Y TP AUK LOCA NO PART NO DESCRIPTION HIC920 IC01 IC01 IC01 IC03 IC06 IC07 IC09 IC301 IC302 IC602 IC603 IC610 IC661 IC662 IC801 IC802 IC803 IC851 IC853 IC855 IC856 IC901 ICP01 ICP02 ICP03 ICP101 D110 D180 D181 D301 D302 D401 D...

Страница 25: ... 20 FL TP 5 LOCA NO PART NO DESCRIPTION C120 C121 C125 C127 C130 C14 C16 C17 C180 C181 C183 C184 C200 C201 C202 C205 C206 C207 C209 C210 C211 C213 C215 C216 C22 C22 C227 C228 C229 C23 C230 C232 C24 C240 C241 C242 C244 C245 C246 C248 C249 C25 C27 C28 C29 C30 C30 C301 C302 C303 C304 C305 C306 C308 C309 C310 0CN1030F679 0CE474DK618 0CN1040K949 0CN1030F679 0CN1030F679 0CE476DF618 0CN4720F569 0CE106DK6...

Страница 26: ... 0 0033U 100V K POLY TP 0 22UF D 63V 5 TP 5 M PE NI LOCA NO PART NO DESCRIPTION C650 C651 C663 C666 C667 C668 C670 C670 C671 C672 C672 C673 C674 C675 C676 C677 C678 C679 C681 C682 C685 C686 C687 C688 C689 C690 C802 C803 C804 C806 C807 C808 C809 C813 C814 C815 C816 C818 C820 C821 C822 C840 C854 C855 C857 C858 C860 181 007F 0CN1030F679 0CN1030F679 0CE107DD618 0CE335DK618 0CN3320F569 0CN3320F569 0CE1...

Страница 27: ...19 0LA0102K119 0LA0102K119 0LA0102K139 0LA0102K119 0LA0102K139 0LA0102K139 0LA0102K139 0LA0102K139 0LA0102K119 0LA0102K119 0LA0102K049 0LA0102K119 0LA0102K119 0LA0102K119 0LA0102K119 0LA0102K119 0LA0102K119 0LA0472K119 0LA0472K119 0LA0102K139 150 717K 6140VE0001J 0LA0102K119 0LA0102K119 0LA0102K139 0LA0102K119 0LA0102K119 150 C02F 0LA0472K119 0LA0102K119 0LA0102K119 0LA0102K119 0LA0391K119 151 C02...

Страница 28: ...R132 R133 R135 R136 R137 R138 R140 R18 R180 R181 R182 R183 R184 R185 R186 R187 R188 R189 R190 R191 R192 R193 R201 R202 R205 R206 R207 R208 R209 R210 R211 R212 R214 R215 R215 R216 R216 R218 R219 R220 R230 R231 R24 R301 R302 R305 R306 R307 R309 R310 R311 R312 0RD0222F609 0RD1000F609 0RD1000F609 0RD1000F609 0RD4700F609 0RD4700F609 0RD5600H609 0RD1002F609 0RD1002F609 0RD0102F609 0RD0102F609 0RD1000F60...

Страница 29: ... 1 6 W 5 00 TA52 180 OHM 1 6 W 5 00 TA52 300 OHM 1 6 W 5 00 TA52 22 OHM 1 6 W 5 00 TA52 1K OHM 1 6 W 5 TA52 10K OHM 1 6 W 5 TA52 6 8K OHM 1 6 W 5 00 TA52 27K OHM 1 6 W 5 00 TA52 6 8K OHM 1 6 W 5 00 TA52 1 2K OHM 1 6 W 5 TA52 120 OHM 1 6 W 5 00 TA52 2 2K OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 TA52 LOCA NO PART NO DESCRIPTION 0RD2202F609 0RD2700F609 0RD2200F609 0RD2202F609 0RD0332F609 0RD1800F609 0RD04...

Страница 30: ...PTION SW01 SW02 SW03 SW04 SW05 SW06 SW801 FB202 FB202 FB220 FB241 FB401 FB801 FB802 FB803 FB855 L920 T801 X01 X661 XP01 A1 A1 A1 A1 A2 A2 A2 A4 F801 JK201 JK202 JK203 PA01 RL801 SK901 TH801 TU101 TU102 VD801 140 315A 140 315A 140 315A 140 315A 140 315A 140 315A 6600VM2002A 125 123A 125 123A 125 123A 125 123A 125 022K 125 022K 125 022K 125 022K 125 022K 125 022K 150 F06T 6202VDB007B 156 A02M 6202VD...

Страница 31: ...P NO 3854VA0098A S 1 2 2002 03 25 ...

Страница 32: ...D4 J236 D4 J237 D5 J238 D2 J239 F5 J240 D4 J241 D4 J242 D1 J244 D2 J245 D1 J246 D1 J247 D4 J248 D4 J249 D5 J250 D5 J251 D5 J252 D3 J253 E4 J254 E5 J255 E4 J256 E4 J257 E3 J258 E2 J259 E5 J260 E4 J261 E4 J262 E4 J263 E3 J264 E3 J265 E1 J266 E5 J267 E5 J268 E2 J269 F1 J270 E4 J271 F2 J272 F5 J273 F4 J274 F5 J275 F1 J276 F1 J277 F3 J278 F4 J279 G2 J280 G2 J281 F3 J282 G1 J283 G3 J284 G1 J285 F4 J286 ...

Страница 33: ...SVC SHEET 3854V A0098A S SVC SHEET ...

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