LG 23LX1RV-MC Service Manual Download Page 14 | Manualshive

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No Raster

Check LED Status

on display unit

Check the input/

Output of IC901

Check L900,L901

L902,L903

Check inverter

Connector or inverter

Check input source cable and jack

Repeat A PROCESS

Faill

Change L900,L901,
L902,L903

Faill

Change IC901

Faill

Change inverter
connector or inverter

Faill

Change panel link
cable or module

Faill

Change module

Faill

Check panel link
Cable or module

Pass

Pass

Pass

Pass

:[B]Process

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Summary of Contents for 23LX1RV-MC

Page 1: ...TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041D MODEL 23LX1RV MC website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...NTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 TROUBLE SHOOTING 13 BLOCK DIAGRAM 19 WIRING DIAGRAM 21 EXPLODED VIEW 22 EXPLODED VIEW PARTS LIST 23 REPLACEMENT PARTS LIST 24 SVC SHEET ...

Page 3: ...akage 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 position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part ...

Page 4: ...vely obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a ground...

Page 5: ...not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit boa...

Page 6: ...ification TV 1 2 3 4 5 6 7 8 9 Video input applicable system Receivable broadcasting system RF input channel Input voltage Picture size Tuning system Operting environment Storage environment Display 1 PAL D K B G I 2 NTSC M 3 SECAM NTSC 4 43 1 PAL SECAM BG 2 PAL SECAM DK 3 PAL I I 4 SECAM L L 5 NTSC M 6 PAL N M 7 NTSC M VHF E2 E12 UHF E21 E69 CATV S1 S20 HYPER S21 S41 L L B C D VHF 2 13 UHF 14 69 ...

Page 7: ...y 9 LINE2 11 LINE3 13 Line3 Ready 2 Y GND 4 Pb GND 6 Pr GND 8 LINE1 10 Line2 Ready 12 SWITCH GND 14 SWITCH 1366 horiz By 768 vert pixels RGB strip arrangement Hard coating 3H Anti glare treatment of the front polarizer Item Specification Remark Unit No DVI I input Middle east NTSC Only Japan only LED Green Red Green H x V x D H V Sync ON ON OFF ON ON OFF Video Active OFF OFF LPL LPL Power consumpt...

Page 8: ... key DVD TOP FLOF NEC code 1 1 2 Half SCART 1 Full SCART 1 1 1 1 1 BG DK BG I LL BG DK BG I LL X X O X O O X X X Pr vol ok menu tv av power OPEN CLOSE PALY STOP SKIP SCEN Item Specification Remark No Top option PAL NTSC Rear RT RM Side Side Rear RT RM Rear RZ Rear RZ DVI D Sub 9 pin RM RM Stereo 6 Optical Feature LCD Module Item Remark Specification Viewing Angle CR 10 Luminance Contrast Ratio CIE...

Page 9: ...80i EDTV 480p SDTV DVD 625 Line HDTV 576p HDTV 720p HDTV 720p HDTV 1080i 50Hz For Australia HDTV 1080i 60Hz ATSC HDTV 1080i 59 94Hz NO 1 2 3 4 5 6 7 Resoluton 640 x 480 800 x 600 1024 x 768 1280 x 768 1360 x 768 1920 x 1080 1280 x 720 H freq kHz 31 469 37 879 48 363 47 693 47 649 33 75 45 00 V freq Hz 59 94 60 31 60 00 60 00 59 93 60 00 60 00 Proposed VESA VGA VESA SVGA VESA XGA VESA WXGA VESA WXG...

Page 10: ...n Connect to the LCD TV AV1 Scart input terminal with Patten Generator MSPG 925FS Convert INPUT MODE to Video Confirm whether PSM Mode is Standard Connect RS 232C Communication Cable to the Auto Adjustment Equipment and SET s upgrade Port 3 4 1 Adjustment Preparation Apply Gray Level Gray Level Model 202 pattern 59 signal by using Pattern Generator MSPG 925FS Check weather color coordinates x 0 28...

Page 11: ... 00 0F 01 03 01 40 26 78 08 B1 DA A1 56 48 98 24 20 13 48 4B A1 08 00 31 40 01 01 01 01 45 40 01 01 30 61 40 81 80 01 01 4E 1F 00 90 51 00 1B 30 40 88 40 13 00 A2 0B 32 00 00 18 1B 21 50 0 51 00 1E 30 50 48 88 35 00 A2 0B 32 00 00 1C 00 00 00 FD 00 3B 60 3D 1F 30 09 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 32 33 4C 58 31 52 56 0A 20 20 20 20 20 00 46 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0...

Page 12: ...k the front AV To move channel up down or to select a function displayed on the screen To adjust the volume or accurately control a specific function To set a specific function or complete setting To move the channel down in the PIP screen To use as a red key in the teletext mode To move the channel in the PIP screen To use as a green key in the teletext mode To switch between the main and sub scr...

Page 13: ...ower LED indicator off Change IC1300 IC4 or IC6 Change LED Assy Check 24V or 12V of Power B D Check Output of IC1300 IC4 or IC6 Check LED Assy Check P101 Connector Faill Faill Change L3 L1300 Check Output of L3 L1300 Faill Faill Pass Pass Pass A Process ...

Page 14: ...ck inverter Connector or inverter Check input source cable and jack Repeat A PROCESS Faill Change L900 L901 L902 L903 Faill Change IC901 Faill Change inverter connector or inverter Faill Change panel link cable or module Faill Change module Faill Check panel link Cable or module Pass Pass Pass Pass B Process ...

Page 15: ...k input source cable and jack Faill Re soldering or Change the defect part Check IC800 Faill Re soldering or Change the defect part Check IC500 X500 IC501 Faill Pass Pass Pass Check the input output of IC901 Re soldering or Change the defect part Check X900 Faill Pass Check the input output of IC600 Re soldering or Change the defect part Check IC600 Faill Pass Pass C Process ...

Page 16: ...o No Raster on TV RF signal Change Q317 Q318 Q308 Q313 Check the signal of Q317 Q318 Q308 Q313 Repeat A Process Check the output of TU1000 Faill Faill Faill Check 5V 33V of TU1000 Re soldering of Change the defect part Pass Pass C Process ...

Page 17: ... 17 No Raster on DVD Signal Check the signal of R1211 R1212 R1213 Repeat A Process Faill Check P1200 P1202 or DVD Cable Pass Pass C Process ...

Page 18: ...e soldering or Change the defect part Check X11 Check the input output of IC1 Faill Pass Re soldering or Change the defect part Check IC403 X601 Re soldering or Change the defect part Check IC400 Check the input output of IC401 Faill Pass Check the input output of IC400 Faill Pass Change the speaker Check the speaker Faill Pass ...

Page 19: ... VCTI IC1 AN15865A IC800 AN15865A IC800 RAM IC501 RAM IC501 MST9883 IC600 MST9883 IC600 S VHS ROM IC900 ROM IC900 MSP4410K IC401 MSP4410K IC401 DVD_POWER Y Pb Pr R L VCTI sound_ LR Comp 1_L R PC_L R AV_L R DVD_ LR R G B DVD_Y Pb Pr TPA3008 AMP TPA3008 AMP SIDE_Y Pb Pr Comp2 Comp1_Y Pb Pr PC_R G B H V sync R G B R 8 G 8 B 8 ADC_H V_sync R G B FLI_H V_sync R G B H V_sync DVI L R ...

Page 20: ...ssor that handles video signal processing and sound signal processing It also manages the RF signals received from the tuner The scaler can control timing to fit into the LCD panel and can also control the size and position of the inputsignal 2 Power Supply Unit The power supply unit provides 24V 12V and 5V DC power to the mainboard The PWM Step Up DC DC Converter circuit is used to generate the 3...

Page 21: ... 9P 6631T20037K 5P 6631T20033T 14P 6631T20033E 12P 6631T20034Y 5P 6631T25023Y 12P 6631T25019K 10P 6631T20033F 3P 6631T20033D 4P 6631T25023X 12P 6631T20034Z 30P 6631T20040A 30P 6631T20040B 3P 6631T20031G WIRING DIAGRAM ...

Page 22: ... 22 010 071 072 020 080 090 100 110 030 050 060 040 160 150 140 130 120 EXPLODED VIEW ...

Page 23: ...Z 26LZ51 L 5P 4951TKS236A METAL ASSEMBLY FRAME 23INCH MAIN 4951TKS236B METAL ASSEMBLY FRAME 23INCH MAIN CKD 6871TPT287J PWB PCB ASSEMBLY POWER RZ 23LZ50 POWER TOTAL BRAND DVD 23LX1RV or 6871TPT287E PWB PCB ASSEMBLY POWER RZ 23LZ50 POWER TOTAL BRAND AUTOBAHN 23 PB FREE 3313TN2038A MAIN TOTAL ASSEMBLY 23LX1RV MC BRAND ML 041D MAIN CHASSIS ASSY 4951TKK174D METAL ASSEMBLY REAR ML 041A RZ 23LZ50S 4951T...

Page 24: ...IFICATION C478 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C480 0CK225DH94A 2 2UF 2012 25V 80 20 F Y C481 0CK225DH94A 2 2UF 2012 25V 80 20 F Y C49 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C490 0CK474DH56A 0 47UF 2012 25V 10 R TP X7 C491 0CK474DH56A 0 47UF 2012 25V 10 R TP X7 C494 0CK225DH94A 2 2UF 2012 25V 80 20 F Y C500 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C505 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C...

Page 25: ...X7R 2012 R TP C908 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C909 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C910 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C911 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C912 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C913 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C914 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C915 0CH3104K566 ...

Page 26: ...46 0CK474CH94A 0 47UF 1608 25V 80 20 R C847 0CK474CH94A 0 47UF 1608 25V 80 20 R C848 0CK474CH94A 0 47UF 1608 25V 80 20 R DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C850 0CK474CH94A 0 47UF 1608 25V 80 20 R C851 0CK474CH94A 0 47UF 1608 25V 80 20 R C853 0CK474CH94A 0 47UF 1608 25V 80 20 R C856 0CK474CH94A 0 47UF 1608 25V 80 20 R C859 0CK474CH94A 0 47UF 1608 25V 80 20 R C860 0CK474CH...

Page 27: ... 3UF MVK RC 50V 20 SMD TA C423 0CE477WF6DC 470UF MVK 16V 20 SMD R TP C442 0CE107WF6DC 100UF MVK 16V 20 R TP SMD C445 0CE107WF6DC 100UF MVK 16V 20 R TP SMD DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C454 0CH8476F691 47UF 16V 20 105STD CYL R C457 0CE476WK6DC 47UF MVK 50V 20 R TP SMD C482 0CE226WJ6DC 22UF MVK 35V 20 R TP SMD C488 0CE227WJ6DC 220UF MVK RC 35V 20 SMD TA C493 0CE476WK6...

Page 28: ...3216M DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L3 6210TCE001G HH 1M3216 501 CERATEC 3216M L301 6210TCE001A HB 1S2012 080JT CERATEC 201 L302 6210TCE001A HB 1S2012 080JT CERATEC 201 L311 6210TCE001G HH 1M3216 501 CERATEC 3216M L4 6210TCE001G HH 1M3216 501 CERATEC 3216M L401 6210TCE001G HH 1M3216 501 CERATEC 3216M L404 6210TCE001G HH 1M3216 501 CERATEC 3216M L407 6210TCE001G HH 1M...

Page 29: ...HM 1 10 W 2012 5 00 DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R1107 0RH1502D622 15K OHM 1 10 W 2012 5 00 R1108 0RH1001D622 1K OHM 1 10 W 2012 5 00 R118 0RH1000D622 100 OHM 1 10 W 2012 5 00 R12 0RH6801D622 6 8K OHM 1 10 W 2012 5 00 R1203 0RH0000D622 0 OHM 1 10 W 2012 5 00 D R1204 0RH0000D622 0 OHM 1 10 W 2012 5 00 D R1205 0RH0752D622 75 OHM 1 10 W 2012 5 00 R1206 0RH0752D622 75 O...

Page 30: ... W 2012 5 00 R89 0RH1000D622 100 OHM 1 10 W 2012 5 00 DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R930 0RH3301D622 3 3K OHM 1 10 W 2012 5 00 R931 0RH3301D622 3 3K OHM 1 10 W 2012 5 00 R941 0RH1000D622 100 OHM 1 10 W 2012 5 00 R960 0RH1000D622 100 OHM 1 10 W 2012 5 00 R963 0RH1002D622 10K OHM 1 10 W 2012 5 00 R964 0RH0000D622 0 OHM 1 10 W 2012 5 00 D R969 0RH1202D622 12K OHM 1 10 W...

Page 31: ... 1 10 W 5 1608 R T R50 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R500 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R5002 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R5007 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R5009 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R501 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R5013 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R5015 0RJ0000D6...

Page 32: ... 1 10 W 5 1608 R TP R903 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R904 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R906 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R908 0RJ0822D677 82 OHM 1 10 W 5 1608 R TP R909 0RJ0822D677 82 OHM 1 10 W 5 1608 R TP DATE 2005 6 28 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R910 0RJ0822D677 82 OHM 1 10 W 5 1608 R TP R913 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R917 0RJ1000D677 1...

Page 33: ... ALY BK KEC Q3108 0TR387500AA CHIP 2SC3875S ALY BK KEC R1601 0RH2701D622 2 7K OHM 1 10 W 2012 5 00 R1602 0RH2700D622 270 OHM 1 10 W 2012 5 00 R1603 0RH1001D622 1K OHM 1 10 W 2012 5 00 R1604 0RH1001D622 1K OHM 1 10 W 2012 5 00 R1605 0RH1001D622 1K OHM 1 10 W 2012 5 00 R1606 0RH1500D622 150 OHM 1 10 W 2012 5 00 R3101 0RH2200D622 220 OHM 1 10 W 2012 5 00 R3102 0RH2200D622 220 OHM 1 10 W 2012 5 00 R31...

Page 34: ......

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Page 36: ...Jun 2005 Printed in Korea P NO 38289S0004G ...

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