LG RZ-27LZ55 Service Manual Download Page 2

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CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ..................................................................................3

SPECIFICATION ........................................................................................6

ADJUSTMENT INSTRUCTION ...............................................................10

TROUBLE SHOOTING ............................................................................15

BLOCK DIAGRAM...................................................................................20

WIRING DIAGRAM ..................................................................................22

EXPLODED VIEW .................................................................................. 23

EXPLODED VIEW PARTS LIST ..............................................................24

REPLACEMENT PARTS LIST ............................................................... 25

SVC. SHEET ...............................................................................................

Summary of Contents for RZ-27LZ55

Page 1: ... TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041A MODEL RZ 27LZ55 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 15 BLOCK DIAGRAM 20 WIRING DIAGRAM 22 EXPLODED VIEW 23 EXPLODED VIEW PARTS LIST 24 REPLACEMENT PARTS LIST 25 SVC SHEET ...

Page 3: ...urrent 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 has a r...

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: ...ion Remark 1 Video input applicable system PAL D K B G I NTSC M SECAM NTSC 4 43 2 Receivable Broadcasting System 1 PAL SECAM BG RZ RT 2 PAL SECAM DK EU Non EU 3 PAL I I PAL Market 4 SECAM L L 5 NTSC M 6 PAL N M 6 7 South America Market 7 NTSC M 7 Except South America NTSC Market RM 3 RF Input Channel VHF E2 E12 UHF E21 E69 PAL CATV S1 S20 HYPER S21 S41 L L B C D FRANCE VHF 2 13 UHF 14 69 NTSC CATV...

Page 7: ...13 Line3 Ready D4 Jack 2 Y GND 525i 525p 750p 1125i 4 Pb GND 6 Pr GND 8 LINE1 JAPAN Only 10 Line2 Ready 12 SWITCH GND 14 SWITCH 7 H V Sync Video Power consumption LED Power ON ON ON Active max 170W W Green Stand by OFF ON OFF 3 0W W Red DPMS Mode ON OFF OFF typ 25W W Green Power off W 8 LCD Module Type Size LPL 637 55 x 379 8 x 40 7 mm H x V x D Pixel Pitch LPL 0 1455 H x 0 4365 V mm Pixel Format ...

Page 8: ...P FLOF Top option 2 REMOCON NEC Code PAL NTSC 3 AV Input 1 Rear RT RM 4 S AV Input 1 Side 5 Component input 2 Side Rear RT RM 1 Side RZ HD 6 PERI TV Connector Half SCART 1 Rear RZ 7 PERI TV Connector Full SCART 1 Rear RZ 8 RGB Input 1 DVI 9 RS 232 1 D sub 9 pin RM 10 Discrete IR 1 RM 11 D Sub Audio Input 1 Stereo 12 2 Carrier Stereo BG DK 13 NICAM Stereo BG I LL 14 2 Carrier Dual BG DK 15 NICAM Du...

Page 9: ...9 1920x1080 31 25 28 125 50 00 HDTV 1080i 50Hz Only AU RT RZ 10 1920x1080 33 75 60 00 HDTV 1080i 60Hz ATSC RT RM RZ 11 1920x1080 33 72 59 94 HDTV 1080i 59 94Hz RT RM RZ No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed DVI PC Analog RGB Digital RGB 1 640x480 31 469 59 94 25 17 VESA VGA 2 800x600 37 879 60 31 40 00 VESA SVGA 3 1024x768 48 363 60 00 65 00 VESA XGA 4 1280x768 47 693 60 00 8...

Page 10: ... CMD2 Instructions operated by Monitor b SetID L 0h Set always 0 in Adjustment VALUE Adjustment Value 3 2 5 Screen Adjustment Instructions 3 3 PC signal Gain Offset Adjustment Execute first of all in adjustment process 3 3 1 Adjustment Preparation Execution of RF no signal during Heat Run over 30min Pattern generator signal is connected to the DVI I Jack of LCD TV 3 3 2 Auto Gain Offset Adjustment...

Page 11: ...285 0 005 26 AUO x 0 280 y 0 285 0 005 by adjusting Red Offset Blue Offset 3 5 2 White Balance Adjustment Apply 95 White Model 210 576i pattern 47 luminance spec 250cd m 2 over signal by using Patten Generator MSPG925FS Check whether color coordinates x 0 283 y 0 298 0 005 is operated by using CA 110 equipment If color coordinates is not in Spec adjust color coordinates x 0 283 y 0 298 0 005 by ad...

Page 12: ...tion Auto Program Manual Program Program Edit Favorite Program None 8 Picture PSM Dynamic Dynamic Contrast 80 Brightness 40 Colour 70 Sharpness 70 Tint 0 NTSC OPTION 9 Sound SSM Flat AVL Off Balance 0 10 Special Input TV Child Lock Off Auto sleep Off Language English Area Management 11 PC H Position V Position Variable by each mode Clock Phase Auto Configure ...

Page 13: ...otel On 3 Top 1 0 Top OFF 1 Top ON 4 I II SAVE 1 0 Ch Sound Non Memory 1 Ch Sound Memory 5 Turbo Vol 0 0 except below area Off 1 Middle East Area Vol On 6 Ch Aus 0 0 except below area Off 1 China Australia On Option3 1 Language 1 0 Eng Only 1 EU5 2 12 nations Europe 3 Eng Chinese 4 Eng Arab Urdu 5 Eng FARSI 2 Txt Lang 0 0 WEST EU 1 EAST EU1 2 TURKY EU 3 EAST EU2 4 CYRILLIC1 5 CYRILLIC2 6 CYRILLIC3...

Page 14: ...put To check 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 ...

Page 15: ...ange Power B D Change IC1300 IC4 or IC8 Change LED Assy Change L808 L809 F801 F802 Check 24V or 12V of Power B D Check Output of IC1300 IC4 or IC8 Check LED Assy Check P101 Connector Fail Fail Fail Change L3 L1300 Check Output of L3 L1300 Fail Pass Fail Pass Pass Pass A Process ...

Page 16: ...ck inverter Connector or inverter Check input source cable and jack Repeat A PROCESS Fail Change L900 L901 L902 L903 Fail Change IC901 Fail Change inverter connector or inverter Fail Change panel link cable or module Faill Change module Fail Check panel link Cable or module Pass Pass Pass Pass Pass B Process ...

Page 17: ... Process Check the input output of IC1 Check the input output of IC901 Check input source cable and jack Fail Re soldering or Change the defect part Fail Re soldering or Change the defect part Faill Pass Pass Pass Check the input output of IC500 IC600 Re soldering or Change the defect part Fail Pass ...

Page 18: ...f TU1000 Check the input output of IC1 Check the input output of IC500 IC600 Check input source cable and jack Fail Fail Fail Faill Re soldering or Change the defect part Fail Fail Re soldering or Change the defect part Check 5V 33V of TU1000 Re soldering or Change the defect part Pass Pass Pass Check the input output of IC901 Re soldering or Change the defect part Pass Pass ...

Page 19: ...e input Check the input source Fail Pass Re soldering or Change the defect part Check the input output of IC1 Fail Pass Re soldering or Change the defect part Check the input output of IC100 IC101 Fail Pass Change speaker Check the speaker Fail Pass ...

Page 20: ...BLOCK DIAGRAM 20 ...

Page 21: ...it Scaler is reponsible for regulating the timing of signal to LCD panel and size and location of the signal Graphic control accepts the PC Analog RGB and DVI D Digital signal Scalar is reponsible for regulating the timing of signal to LCD panel and size and location of the signal Graphic control accepts the PC Analog RGB and DVI D Digital signal the signal of PC input is connected to analog port ...

Page 22: ... BOARD 1 2 3 11 4 5 6 7 8 9 10 WIRING DIAGRAM No Part No 1 2 3 4 5 6 7 8 9 10 11 Wiring Part List 6631T11020N 6631T20033F 6631T20032E 6631T25019K 6631T20033B 6631T20033C 6631T20033D 6631T20029Z 6631T20029Y 6631T20033E 6631T20032F ...

Page 23: ... 23 EXPLODED VIEW 010 162 161 050 020 070 060 080 090 120 100 110 130 030 140 150 040 ...

Page 24: ...L TOTAL BRAND LF 4951TKS156F Plate Assembly FRAME CMO RZ 27LZ50 C SKD 6871TPT275E PCB Assembly Power RM 32LZ50 POWER TOTAL BRAND 26 32INCH PB FREE 6871TST588D PCB Assembly Sub RZ 26LZ50 IR SUB TOTAL BRAND LF 4814TKK280A Plate PRESS SPTE T0 3 REAR POWER 33139P2020A Main Total Assembly CMO ML 041A LF RZ 27LZ55 BRAND 3551TKK516L Cover Assembly RZ 32LZ50 LGEMA PHANTOM REAR A V ASSY PHONE 3551TKK516B C...

Page 25: ...3 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C805 0CE227WF6DC MVK8 0TP16VC220M 220u 20 1 C806 0CE227WF6DC MVK8 0TP16VC220M 220u 20 1 C807 0CE227WF6DC MVK8 0TP16VC220M 220u 20 1 C814 0CE227WF6DC MVK8 0TP16VC220M 220u 20 1 C815 0CH8476F691 MVK6 3TP16VC47M 47u 20 16V C857 0CE107WF6DC MVK6 3TP16VC100M 100u 20 1 C858 0CH8476F691 MVK6 3TP16VC47M 47u 20 16V C859 0CH8476F691 MVK6 3TP16VC47M 47u 20 1...

Page 26: ...6 0805B104K500CT 100000p 10 C50 0CH6102K406 C2012S2L1H102JT 1000p 5 50 C500 0CH3104K566 0805B104K500CT 100000p 10 DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C505 0CH3104K566 0805B104K500CT 100000p 10 C506 0CH3104K566 0805B104K500CT 100000p 10 C507 0CH3104K566 0805B104K500CT 100000p 10 C508 0CH3104K566 0805B104K500CT 100000p 10 C509 0CH3104K566 0805B104K500CT 100000p 10 C51 0CH31...

Page 27: ...02JT 1000p 5 50 C864 0CH3104K566 0805B104K500CT 100000p 10 C865 0CH3104K566 0805B104K500CT 100000p 10 DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C866 0CH3104K566 0805B104K500CT 100000p 10 C867 0CH3104K566 0805B104K500CT 100000p 10 C868 0CH3104K566 0805B104K500CT 100000p 10 C869 0CH3104K566 0805B104K500CT 100000p 10 C870 0CH3104K566 0805B104K500CT 100000p 10 C90 0CH3104K566 0805B...

Page 28: ...41A C1608C0G1H330JT 33p 5 50V C524 0CK104CK56A 0603B104K500CT 100000p 10 C600 0CC220CK41A C1608C0G1H220JT 22p 5 50V C601 0CC220CK41A C1608C0G1H220JT 22p 5 50V DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C602 0CC220CK41A C1608C0G1H220JT 22p 5 50V C603 0CC220CK41A C1608C0G1H220JT 22p 5 50V C610 0CC102CK41A C1608C0G1H102JT 1000p 5 50 C611 0CK473CK56A C1608X7R1H473KT 47000p 10 C612 0...

Page 29: ...J KA78M08RTM 10 5TO23V 8V D IC8 0IMCRFA015A KA7805R 7TO20V 5V 150W DPAK DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L104 6140TBZ045A 38 5uH 13 5X20MM LEAD L105 6140TBZ045A 38 5uH 13 5X20MM LEAD L100 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L1002 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L3 6210TCE001G HH 1M3216 501JT 500OHM 3 2X L301 6210TCE001A HB 1S2012 080JT 8OHM 2X1 25 L302 6210...

Page 30: ...ESCRIPTION SPECIFICATION R1105 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W R1106 0RH1202D622 MCR10EZHJ123 12KOHM 5 1 8W R1107 0RH1502D622 MCR10EZHJ153 15KOHM 5 1 8W R1116 0RH0000D622 MCR10EZHJ000 0OHM 5 1 8W 2 R118 0RH1000D622 MCR10EZHJ101 100OHM 5 1 8W R126 0RH1502D622 MCR10EZHJ153 15KOHM 5 1 8W R1301 0RH1002D622 MCR10EZHJ103 10KOHM 5 1 8W R1304 0RH1002D622 MCR10EZHJ103 10KOHM 5 1 8W R132 0RH1003D622 M...

Page 31: ... 1 8W 2 R802 0RH8200D622 MCR10EZHJ821 820OHM 5 1 8W R803 0RH0000D622 MCR10EZHJ000 0OHM 5 1 8W 2 DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R805 0RH0752D622 MCR10EZHJ750 75OHM 5 1 8W R806 0RH4700D622 MCR10EZHJ471 470OHM 5 1 8W R809 0RH0102D622 MCR10EZHJ100 10OHM 5 1 8W R83 0RH1000D622 MCR10EZHJ101 100OHM 5 1 8W R85 0RH1000D622 MCR10EZHJ101 100OHM 5 1 8W R850 0RH4701D622 MCR10EZHJ...

Page 32: ...3EZPJ000 0OHM 5 1 10W R4023 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R4024 0RJ0472D677 MCR03EZPJ470 47OHM 5 1 10W DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R4027 0RJ3001D677 MCR03EZPJ302 3KOHM 5 1 10W R4032 0RJ4700D677 MCR03EZPJ471 470OHM 5 1 10 R4033 0RJ4700D677 MCR03EZPJ471 470OHM 5 1 10 R449 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R450 0RJ0000D677 MCR03EZPJ000 0OHM 5 1 10W R451 0...

Page 33: ...7 MCR03EZPJ101 100OHM 5 1 10 R934 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R935 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R936 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R937 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R938 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R939 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R94 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 DATE 2006 03 03 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R9...

Page 34: ... 1 4W R1604 0RD1001Q609 RDM94T1J1K00 1KOHM 5 1 4W R1605 0RD1001Q609 RDM94T1J1K00 1KOHM 5 1 4W R1606 0RD1500Q609 RDM94T1J150R 150OHM 5 1 4W SW1600 140 313A THVV501BBC 1C1P 12VDC 0 05A LED1600 0DLBE0128AA BL BUBGE304 ROUND 5MM SUPER C2006 0CN4710K519 RH UP050 B471K B B 470p 10 C2007 0CN4710K519 RH UP050 B471K B B 470p 10 R2001 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2002 0RD0752Q609 RDM94T1J75R0 75OH...

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Page 37: ...Mar 2006 Printed in Korea P NO MFL30105501 ...

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