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SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : ML-041D

MODEL : 27LZ5RV-ZC

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

Summary of Contents for 27LZ5RV-ZC

Page 1: ... A Y S K IP S C A N S K IP S C A N LCD TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041D MODEL 27LZ5RV ZC website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ... 2 PRODUCT SAFETY 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 11 TROUBLE SHOOTING 15 BLOCK DIAGRAM 21 WIRING DIAGRAM 24 EXPLODED VIEW 25 EXPLODED VIEW PARTS LIST 26 REPLACEMENT PARTS LIST 27 SVC SHEET ...

Page 3: ...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 has a ...

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: ...on 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 ZE TE 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 PAL UHF E21 E69 CATV S1 S20 HYPER S21 S41 L L B C D FRANCE VHF 2 13 NTSC UHF 14 69 CATV ...

Page 7: ...Line3 Ready D4 Jack 2 Y GND JAPAN Only 525i 525p 750p 1125i 4 Pb GND 6 Pr GND 8 LINE1 10 Line2 Ready 12 SWITCH GND 14 SWITCH 5 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 35W W Green Power off W 6 LCD Module Type CMO 637 55 x 379 8 x 40 7 mm H x V x D Size Pixel Pitch CMO 0 1455 x 0 4365 x RGB mm Pixel Format 1...

Page 8: ...26 Teletext REMOCON AV input S AV input Component input PERI TV connector PERI TV connector RGB input RS 232 Discrete IR D sub audio input 2 Carrier stereo NICAM stereo 2 Carrier dual NICAM dual DW Double Window mode MW Multi Window mode Film mode Noise reduction Progressive scan Motion detection SRS WOW Swivel Speaker EZ pip Local Key Local key DVD TOP FLOF NEC code 1 1 2 Half SCART 1 Full SCART ...

Page 9: ... 50 00 SDTV DVD 625 Line 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 80 125 VESA WXGA 5 1360x768 47 649 59 936 84 625 VESA WXGA 6 1920x1080 33 75 60 00 86 375 HDCP DVI Digital 1080i MC only 7 1280x720 45 00 60 00 7...

Page 10: ... 16 9 7 Station 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 Configue ...

Page 11: ...inal 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 Low Gray Adjustment Apply Gray Level Gray Level Model 202 pattern 59 signal by using Pattern Generator MSPG 925FS Check weather color coordinates x 0 280 y 0 280 0 005 is operated by using CA 110 equ...

Page 12: ...ontent Reference HDCP adjustment is not use We are planning HDCP adjustment from NTSC 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 00 FF FF FF FF FF FF 00 1E 6D 45 75 01 01 01 01 10 00 0E 01 03 01 40 26 78 08 B1 DA A1 56 48 98 24 20 13 48 4B 21 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 A0 51 00 1E 30 50 48 88 35...

Page 13: ... 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 Option 3 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 7 TUR...

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: ...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 16: ...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 17: ...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 18: ... Video 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 19: ... 19 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 20: ...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 21: ...BLOCK DIAGRAM 26LZ5RV ZC 21 ...

Page 22: ...TI IC1 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 23: ...sor 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 33...

Page 24: ...631T11020A 6P 6631T20033B 5P 6631T20033C 14P 6631T20033E 14P 6631T20032A 5P 6631T25023Y 12P 6631T25019K 10P 6631T20033F 3P 6631T20033D 4P 6631T25023X 30P 6631T20040A 30P 6631T20040B 3P 6631T20031G WIRING DIAGRAM ...

Page 25: ... 25 EXPLODED VIEW 010 070 020 090 100 110 120 030 050 060 190 200 040 180 170 160 150 140 130 080 ...

Page 26: ...32LZ50 POWER TOTAL BRAND 26 32INCH PB FREE 33139P2018A Main Total Assembly 27LZ5RV BRAND MAIN TOTAL ASSEMBLY 4951TKK169S Plate Assembly REAR SHIELD 26LZ50 LGEMA PHAMTOM 4951TKK169J Plate Assembly REAR RZ 26LZ50 C SKD 6871TST762D PCB Assembly Sub RZ 26LZ50 WALES SKD LED P SW TOTAL BRAND LF 6871TST589D PCB Assembly Sub RZ 26LZ50 CONTROL TOTAL BRAND LF 6871TVT370C PCB Assembly Video RM 32 26 23LZ50 S...

Page 27: ...ART NO DESCRIPTION SPECIFICATION C68 0CE106VK6DC MV6 3TP50VC10M 10uF 20 50V C703 0CE107WF6DC MVK6 3TP16VC100M 100uF 20 C805 0CE475WK6DC MVK5 0TP50VC4 7M 4 7uF 20 C836 0CE477WF6DC MVK10TP16VC470M 470uF 20 1 C837 0CE477WF6DC MVK10TP16VC470M 470uF 20 1 C839 0CE477WF6DC MVK10TP16VC470M 470uF 20 1 C864 0CE227WF6DC MVK8 0TP16VC220M 220uF 20 C866 0CE227WF6DC MVK8 0TP16VC220M 220uF 20 C87 0CH8476F691 MVK6...

Page 28: ... 2uF 20TO C469 0CH3104K566 0805B104K500CT 100nF 10 50 C471 0CH3104K566 0805B104K500CT 100nF 10 50 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C472 0CH3104K566 0805B104K500CT 100nF 10 50 C473 0CH3104K566 0805B104K500CT 100nF 10 50 C474 0CH3104K566 0805B104K500CT 100nF 10 50 C477 0CH3104K566 0805B104K500CT 100nF 10 50 C478 0CH3104K566 0805B104K500CT 100nF 10 50 C480 0CK225DK94A CL21...

Page 29: ...0 2 C826 0CK474DH56A C2012X7R1E474KT 470nF 10 2 C827 0CK474DH56A C2012X7R1E474KT 470nF 10 2 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C828 0CK474DH56A C2012X7R1E474KT 470nF 10 2 C83 0CH6102K406 C2012S2L1H102JT 1nF 5 50V C84 0CK106EF56A C3216X7R1C106KT 10uF 10 16 C841 0CK474DH56A C2012X7R1E474KT 470nF 10 2 C843 0CK474DH56A C2012X7R1E474KT 470nF 10 2 C857 0CK474DH56A C2012X7R1E474...

Page 30: ...224K160CT 220nF 10 16 C48 0CC220CK41A C1608C0G1H220JT 22pF 5 50V C483 0CK104CK56A 0603B104K500CT 100nF 10 50 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C484 0CK104CK56A 0603B104K500CT 100nF 10 50 C485 0CK474CH94A 0603F474Z250CT 470nF 20TO C486 0CK104CK56A 0603B104K500CT 100nF 10 50 C487 0CK104CK56A 0603B104K500CT 100nF 10 50 C5001 0CK104CK56A 0603B104K500CT 100nF 10 50 C5004 0CK4...

Page 31: ...DR 4 5TO5 5V 0 00 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION IC1300 0IPMG00063A MP1593DN LF Z 4 75TO28V 1 2 IC1301 0IPMG00063A MP1593DN LF Z 4 75TO28V 1 2 IC1302 0IPMG00063A MP1593DN LF Z 4 75TO28V 1 2 IC2001 0IPRPJR017A NJU26901E2 2 25TO2 75V 1mA IC749 0IMMRSG036A M24C02 WMN6TP 2KBIT 256X8BI IC753 0IMMRSG036A M24C02 WMN6TP 2KBIT 256X8BI IC907 0IMCRAL006A AT24C16AN 10SU 2 7 16KBI...

Page 32: ...1 NPN 4V 30V 25V 50MA Q1101 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION Q300 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 Q302 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 Q303 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 Q304 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 Q318 0TR387500AA 2SC3875S ALY NPN 5V 60V 50 Q410 0TR150400BA 2SA1504S ASY PNP 5V 50V Q411 0TR387...

Page 33: ...0EZHJ102 1KOHM 5 1 8W R377 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W R379 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R381 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W R383 0RH1001D622 MCR10EZHJ102 1KOHM 5 1 8W R394 0RH6800D622 MCR10EZHJ681 680OHM 5 1 8W R395 0RH6800D622 MCR10EZHJ681 680OHM 5 1 8W R403 0RH4701D622 MCR10EZHJ472 4 7KOHM 5 1 8 R418 0RH1001D...

Page 34: ...150OHM 5 1 10 R161 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R163 0RJ1500D677 MCR03EZPJ151 150OHM 5 1 10 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R164 0RJ1500D677 MCR03EZPJ151 150OHM 5 1 10 R17 0RJ2202D677 MCR03EZPJ223 22KOHM 5 1 10 R173 0RJ3301D677 MCR03EZPJ332 3 3KOHM 5 1 1 R175 0RJ3301D677 MCR03EZPJ332 3 3KOHM 5 1 1 R205 0RJ0682D677 MCR03EZPJ680 68OHM 5 1 10W R207 0RJ0752D677 M...

Page 35: ...000 0OHM 5 1 10W R606 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R608 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R609 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R62 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R64 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R66 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R68 0RJ1000D677 MCR03EZPJ101 100OHM 5 1 10 R70 0RJ1000D677 MC...

Page 36: ... 10W R985 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R986 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R987 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W R988 0RJ0222D677 MCR03EZPJ220 22OHM 5 1 10W IC900 6620F00017A CCSD 32T SM 32P 1 27MM SMD X11 6202VDT002E SX 1 20 25MHZ 20 25MHZ 30PP X500 6202VDT002J SX 1 13 5MHZ 30PPM 13 5MHZ DATE 2006 3 15 S AL LOC NO PART NO DESCRIPTION SPECIFICATION X601 6202VDT002H SX 1 18 ...

Page 37: ...K B B 470pF 10 R2001 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2002 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2003 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2004 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2005 0RD0752Q609 RDM94T1J75R0 75OHM 5 1 4W R2006 0RD4703Q609 RDM94T1J470K 470KOHM 5 1 4 R2007 0RD4703Q609 RDM94T1J470K 470KOHM 5 1 4 37 VIDEO BOARD ...

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Page 40: ...Mar 2006 Printed in Korea P NO 38289S0004M ...

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