LG CE-25H46ET Service Manual Download Page 3

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CONTENTS

Contents ................................................................................................................. 2

Safety Precautions ............................................................................................3

Specifications ..................................................................................................... 4

Control Descriptions ........................................................................................ 5

Disassembly Instructions ............................................................................. 8

Adjustment Instructions ............................................................................... 9

Exploded View .................................................................................................. 14

Exploded View Parts List ..............................................................................15

Replacement Parts List ................................................................................ 16

SVC. Sheet ................................................................................................................

Summary of Contents for CE-25H46ET

Page 1: ......

Page 2: ...TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS MC 007A MODEL CE 25 29H46ET website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 3: ...NTS Contents 2 Safety Precautions 3 Specifications 4 Control Descriptions 5 Disassembly Instructions 8 Adjustment Instructions 9 Exploded View 14 Exploded View Parts List 15 Replacement Parts List 16 SVC Sheet ...

Page 4: ...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...

Page 5: ...ll A V in out Scart 2 Half Audio out A V in out 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 Feature Auto programme Manual programme SVM Scanning Velocity Modulation Digital Eye Digital Comb Filter Auto Sleep Dynamic Focus Programme Editing PSM Picture Status Memory CTI Double Window Teletext TOP FLOF Turbo ...

Page 6: ... Control changes the picture format 4 TV AV selects TV or AV mode clears the menu text from the screen switches the set on from standby 5 EYE option switches the eye function on or off 6 TURBO PICTURE BUTTON selects Turbo picture TURBO SOUND BUTTON selects Turbo sound 7 D D E E Programme Up Down selects a programme or a menu item switches the set on from standby F F G G Volume Up Down adjusts the ...

Page 7: ...ets the sleep timer 18 VCR BUTTONS control a LG video cassette recorder Note In teletext mode the PR SWAP or Q VIEW and INPUT buttons are used for teletext function Battery installation The remote control handset is powered by two AAA 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...

Page 8: ...IN SOCKETS AV3 Connect the audio video out sockets of exter nal 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 VCR to the audio sockets as in AV3 10 HEADPHONE SOCKET Connect the headphone plug to this socket 11 TV AV option selects TV or AV mode clears the menu from th...

Page 9: ...und Amp Board 2 Remove respective 6 screws for speaker on the front cabinet Fig 2 2 CPT Removal 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 ...

Page 10: ...e 2 4 0 05Vdc RF AGC Automatic Gain Control Adjustment 1 Input PAL B G 05 CH 2 Connect Multimeter to TP2 J15 AGC adjustment point 3 Adjust VR121 until the voltage of Multimeter becomes 2 5 0 1V Screen Voltage Adjustment 1 Tune the RF Modulator to receive a PAL or SECAM signal 2 Press MIX button on remote controller for Service to get into the Screen Adjust Mode 3 Adhere the Color Analyzer on the W...

Page 11: ...that a digital circle pattern looks like exact circle EP East west Parabolar Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT EC East west Coner Adjust so that the vertical line at every 4 corners of the screen looks like parallel with the vertical lines of the CPT ET East west Trapezium Adjust to make the length of top ...

Page 12: ... 0 1FFH 0 1FFH 0 01FF 0 01FF 00C8 0190 0065 000B 0007 0008 0005 0003 0001 00F0 0158 Range 29 Flat 29 S Flat Menu FP NP SP S1 VOL S2 VOL 0 127 0 127 0 127 0 127 0 127 0011 0045 001E 0042 0042 Range DATA Mode CONTRAST BRIGHT COLOR SHARPNESS 90 50 50 50 100 55 60 60 60 60 40 40 50 60 40 30 STANDARD DYNAMIC MILD GAME Menu CR CG CB RG GG BG 0 511 0 511 0 511 0 511 0 511 0 511 50 50 50 370 370 370 Range...

Page 13: ...V MONO VOL H PH DGS TILT 200PRO AV2 HOTEL KEY SYS M VOL OSD T LAN 1 GAME TEXT TOP China Australia EYE Turbo Search SCART STEREO I II MONO Middle East Africa India VOL H Phone Degaussing TILT China Only Back JACK 2EA HOTEL 0 X X X Australia Only X X X X X X Normal VOL X X Back JACK 1EA X Option 1 Option 2 Option 3 Option 4 Menu ...

Page 14: ... 13 MEMO ...

Page 15: ... 14 P801 540 520 501 560 550 530 120 300 700 600 310 320 310 400 943 170 510 150 153 112 913 EXPLODED VIEW ...

Page 16: ...AIN 007A 6871VMM753M PWB ASSY MAIN 007A W ST BY 530 6871VSM786A 6871VSM786A PWB ASSY VCD W O PIP SVM W 6871VSM711A 6871VSM711A PWB ASSY VCD W O PIP W SVM 540 6871VSM589A 6871VSM589A PWB ASSY RF ST W H_PHONE 550 6871VSM705C 6871VSM705C PWB ASSY POWER H36 H46 STD 560 6871VSM730A 6871VSM730A PWB ASSY CONT 29H46 007A 570 6871VSM842A 6871VSM842A PWB ASSY CURRENT HARMONICS STANDARD 600 6871VSM729A 6871V...

Page 17: ...O3P TR KTC2238A Y TR KSA733C Y TP SAMSUNG TO 92 TR KSC945C Y TP SAMSUNG LOCA NO PART NO DESCRIPTION D850 ICV01 ICN01 IC01 IC02 ICV02 ICN02 IC03 ICN03 IC04 ICN05 ICV101 IC101 IC102 IC301 IC302 IC601 IC801 IC802 IC803 IC851 IC853 IC855 IC856 IC901 Q07 Q08 D01 D02 D03 D04 D101 D301 D302 D401 D402 D403 D404 D405 D406 D407 D408 D412 D601 D602 D802 D803 D804 D851 D852 D853 0ISK100300A 0IIT312000A 0IIT34...

Page 18: ...5 C106 C108 C109 C110 C112 C113 C115 C121 C122 C125 C126 C127 C128 C129 C130 C131 C132 C134 C135 C136 C137 C138 C139 C140 C141 C147 C148 C149 C183 C201 C202 C203 C204 C205 C206 C207 C208 C209 C221 C222 C223 C224 C225 C226 C227 C228 C229 C230 C244 0CN1030F679 0CE476DK618 0CN1030F679 0CE227DD618 0CX3300K409 0CX3300K409 0CE106DF618 0CE335DK618 0CN1040K949 0CN1020K519 0CE476DD618 0CN1030F679 0CN1030F6...

Page 19: ...C809 C811 C813 C814 C815 C817 C851 C852 C853 C854 C855 C856 C857 C858 C859 C860 C861 C862 C863 C864 C866 C867 C870 25 C871 C872 C873 C901 C902 C903 C904 C905 C906 C907 C908 C909 C910 C911 C912 C913 C1102 C1201 C1203 C1205 C1206 C1208 C1210 C1211 CN05 181 091V 0CE337KV6A0 181 011C 181 091G 0CE107BJ618 0CK1020K515 181 120K 0CK10201515 0CQZVBK002A 181 091Q 0CK22201510 0CK1020W515 0CK1020W515 DCE477DF...

Page 20: ... FL TP5 10UF STD 16V M FL TP5 10UF STD 16V M FL TP5 10UF STD 16V M FL TP5 LOCA NO PART NO DESCRIPTION FB01 FB201 FB202 FB222 FB401 FB801 FB802 FB803 FB852 FB853 FB902 FB903 J29 J51 L01 L02 L101 L102 L103 L104 L122 L123 L126 L201 L202 L203 L204 L221 L222 L223 L224 L245 L246 L401 L402 L851 L853 L901 L1201 L1201 L1202 L1203 L1204 LN01 LN03 LN05 LN06 LN07 LN08 LV01 125 022K 125 022K 125 123A 125 123A ...

Page 21: ... R59 R60 R61 R62 R63 R64 R65 R66 R67 R69 R70 R71 R101 R102 R103 R104 R105 R106 R108 R130 R132 R133 R135 R136 R137 R138 R139 0RD4701F609 0RD0101F609 0RD4701F609 0RD4701F609 0RD1000F609 0RD1000F609 0RD1001F609 0RD1001F609 0RD1001F609 0RD4302F609 0RD5101F609 0RD1000F609 0RD2701F609 0RD8201F609 0RD1000F609 0RD5601F609 0RD1000F609 0RD1000F609 0RD1200F609 0RD1000F609 0RD1200F609 0RD1000F609 0RD1200F609 ...

Page 22: ...TA52 5 6 OHM 1 W 5 00 TA62 1 5K OHM 1 6 W 5 00 TA52 3 3K OHM 1 6 W 5 00 TA52 470 OHM 1 6 W 5 00 TA52 2 7K OHM 1 2 W 5 00 TA52 1 5K OHM 1 2 W 5 00 TA52 1 5K OHM 1 2 W 5 00 TA52 39 OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 00 TA52 1K OHM 1 6 W 5 00 TA52 LOCA NO PART NO DESCRIPTION 0RD1801H609 0RD0332H609 0RS2200K607 0RS2000K607 0RS0221K607 0RS1801H609 0RMZVBK002D 0RMZVBK002C 0RS4702H609 0RS2002H609 0RS100...

Page 23: ...0 TA52 10K OHM 1 6 W 5 00 TA52 10K OHM 1 6 W 5 00 TA52 1K OHM 1 6 W 5 00 TA52 100 OHM 1 6 W 5 00 TA52 1K OHM 1 6 W 5 00 TA52 LOCA NO PART NO DESCRIPTION RV122 RV123 RV124 VR121 SG901 SG902 SG903 SG904 SWP801 SW1101 SW1102 SW1103 SW1104 SW1105 SW1106 T102 T103 T104 TP801 X01 XN01 XV01 Z101 Z102 A1 A2 F853 FP801 JK201 JK202 JK1201 PA1101 RL801 RL802 SK901 TH801 TU101 0RD1000F609 0RD1000F609 0RD0102F...

Page 24: ...Video Audio C P No 3854VA0071A S1 2000 06 15 ...

Page 25: ...P01 C2 P101 A5 P181 A3 P601 A2 P602 A1 P02A F1 P03A C1 P04A C1 P05A B1 P06A B1 P401A F4 P401B F4 P401C F4 P401D F4 P402A F5 P403A E5 P404A F5 P502A A3 P503A B3 P504A C3 P603A D5 P604A D5 P605A A2 P606A A3 P801A G1 P801B G1 P802A E1 P802B E1 PA02 F1 Q02 B3 Q03 C3 Q04 C3 Q05 D1 Q06 E1 Q07 B1 Q08 A1 Q101 B5 Q102 B5 Q103 A5 Q121 B5 Q122 C4 Q123 C4 Q124 C5 Q125 A4 Q126 B4 Q127 A4 Q201 B5 Q221 D5 Q301 D...

Page 26: ...P or VCD BOARD 5V REG IC854 5 9V REG IC852 3 3 3V REG IC04 13V 9V 5V TUNER 33V SOUND Vcc B 28 S VIDEO SEL BLOCK DIAGRAM TROUBLESHOOTING GUIDE C804 F P 801 SW P 801 T1111 T801 R802 DB801 pin4 T802 R809 D802 18V ICP V 01 ICP V 01 Q401 Q402 T401 OPTION 33V F854 D861 R405 D850 L853 T402 3V pin 32 of IC01 3 3V 0V IC01 FR403 FR413 D405 D406 IC301 ICP V 01 IC852 3 IC854 5 FR406 D408 D858 Q856 Q05 IC851 I...

Page 27: ...SVC SHEET 3854V A0071A S1 SVC SHEET 3854V A0071A S2 ...

Page 28: ...Jan 2001 Printed in Korea P NO 3828VD0077C ...

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