LG RM-26LZ30, Service Manual

Page 1: ... TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041A MODEL RZ 26LZ30 website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ENTS 2 PRODUCT SAFETY 3 SPECIFICATION 4 TIMING CHART 10 ADJUSTMENT INSTRUCTION 11 TROUBLE SHOOTING 16 BLOCK DIAGRAM 21 WIRING DIAGRAM 23 EXPLODED VIEW 24 EXPLODED VIEW PARTS LIST 25 REPLACEMENT PARTS LIST 26 SVC SHEET ...

Page 3: ...et 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 position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead i...

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: ...pecification 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 ...

Page 7: ...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 1280 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 Red Red dimmed Red dimmed H x V x D H V Sync ON ON OFF ON ON OFF Video Active OFF OFF LPL LPL Power co...

Page 8: ... SRS WOW Swivel Speaker EZ pip TOP FLOF LIST 10 page NEC code 2 RT RM 1 RZ 1 1 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 Item Specification Remark No Top option PAL NTSC 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 ˆ10 Luminance Contrast Ratio CIE Color Coordinates Typical ...

Page 9: ...69 35 37 500 35 156 37 879 48 077 46 875 48 363 56 476 60 023 47 693 V freq Hz 59 94 67 75 00 56 25 60 31 72 18 75 00 60 00 70 06 75 02 60 00 Proposed VESA VGA VESA VGA VESA VGA VESA SVGA VESA SVGA VESA SVGA VESA SVGA VESA XGA VESA XGA VESA XGA VESA WXGA Pixel clock MHz 25 17 30 24 31 50 36 00 40 00 50 00 49 50 65 00 75 00 78 75 80 125 8 PC Input Mode DVI PC Analog RGB ...

Page 10: ...64 V 72 188 666 600 37 6 23 H 46 875 1056 800 16 80 160 V 75 0 625 600 1 3 21 H 48 363 1344 1024 24 136 160 V 60 004 806 768 3 6 29 H 56 476 1328 1024 24 136 144 V 70 069 806 768 3 6 29 H 60 023 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 47 776 1664 1280 64 128 192 V 59 870 798 768 3 7 20 Mode H V Sort 1 2 3 4 5 6 7 8 9 10 11 25 175 30 240 31 5 36 40 0 50 0 49 5 65 0 75 78 75 79 50 640x480 640x...

Page 11: ...D menu and set Analog or Digital for DDC data selection 4 Select Analog for analog data and Digital for digital data 5 Connect the DDC automation equipment and write the DDC data 2 2 1 EDID DATA DDC DATA Analog DDC DATA Digital ADJUSTMENT INSTRUCTION 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 00 56 01 01 01 01 10 0C 0E 01 03 98 46 2B 96 EE E8 AA A1 57 49 9C 25...

Page 12: ...rogram Manual Program Program Edit Favorite Program PSM SSM AVL Balance Input Child Lock Auto sleep Language H Position V Position Clock Phase Auto Configure Dynamic Contrast Brightness Colour Sharpness Tint Off 30 TV Pr 01 Off 16 9 None Dynamic 80 40 70 70 0 Flat Off 0 TV Off Off English Area Management Variable by each mode NTSC OPTION 3 Shipping Conditions ...

Page 13: ...tel On 0 Top Off 1 Top On 0 Ch Sound Non Memory 1 Ch Sound Memory 0 except below area Off 1 Middle east Area Vol On 0 except below area Off 1 China Australia On Option 1 Option 2 NO ITEM CONDITION REMARK 1 2 3 4 Language Txt Lang Inch opt DDCi 1 0 0 Analog 0 Eng Only 1 EU5 2 12 nations Europe 3 Eng Chines 4 Eng Arab Urdu 5 Eng FARSI 0 WEST EU 1 EAST EU 1 2 TURKY EU 3 EAST EU 2 4 CYRILLIC 1 5 CYRIL...

Page 14: ...ck Exit button 2 EDID Read Write 1 Run WinEDID exe 2 Edit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button c Click Write button 220 IBM Compatible PC Video Signal Generator PARALLEL PORT Power inlet required Power LED ST Switch Power Select Switch 110V 220V Control Line N o t u s e d R S 2 3 2 C P A R A L L E L V S Y N C P O W E R S T VGS MONIT OR ...

Page 15: ...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 16: ...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 17: ...Check 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 Fail Change module Fail Check panel link Cable or module Pass Pass Pass Pass B Process ...

Page 18: ...A 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 Fail Pass Pass Pass Check the input output of IC500 IC600 Re soldering or Change the defect part Fail Pass ...

Page 19: ...of TU1000 Check the input output of IC1 Check the input output of IC500 IC600 Check input source cable and jack Fail Fail Fail Fail Re soldering or Change the defect part 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 Fail Re soldering or Change the defect part Pass Pass ...

Page 20: ...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 21: ... IC600 FLI2300 IC500 RAM IC501 SM5301 IC800 GM5221 SCALER IC901 ROM IC900 LVDS or TTL OUT DVI R G B 3 3 R G B 8 8 8 PC_R G B 3 PC_R G B DVI 8 3 R G B R L SCART1_V SCART2_V SC_R G B FB SIDE_COMP SIDE_Y C SCART1_L R SIDE_ L R SCART2_ L R PC_ LR IC200 LA7222C VOUT_1 2 3 R G B R G B PAL _ IF ...

Page 22: ... the LCD module VCTI is the main microcomputer that processes both video signals and sound signals It also processes the RF signal received from the tuner The scaler enables to adjust timing on the LCD panel as well as an adjustment of the size and position of the input signal The graphic controller unit receives the PC analog RGB input and the DVI D digital signal and sends the PC input to the sc...

Page 23: ...2P 14P 10P 4P 3P 9P 14P P101 P802 P105 P106 P202 INDEX BOARD CONTROL BOARD IR BOARD 1 2 3 4 5 6 7 8 WIRING DIAGRAM No Part No 1 2 3 4 5 6 7 8 Wiring Part List 6631T11020A 6631T20033F 6631T20032A 6631T25019B 6631T20033H 6631T20033J 6631T20033D 6631T20033K ...

Page 24: ... 24 EXPLODED VIEW 1 2 3 4 7 8 11 9 10 12 13 14 17 15 16 6 5 ...

Page 25: ...LY RZ 26LZ30 4 OHM LEFT 8 6401TZZ049A SPEAKER ASSEMBLY RZ 26LZ30 4 OHM RIGHT 9 6871TST628A PWB PCB ASSEMBLY SUB 26LZ30 KEY CONTROL TOTAL BRAND KEY BOARD 10 6871TST627A PWB PCB ASSEMBLY SUB 26LZ30 IR CONTROL TOTAL BRAND IR BOARD 11 4951TKS171B METAL ASSEMBLY FRAME MAIN RZ RT RM 26LZ30 4951TKS171C METAL ASSEMBLY FRAME MAIN CKD 12 6871TPT275A PWB PCB ASSEMBLY POWER RZ 30LZ50 POWER TOTAL BRAND ML 041A...

Page 26: ...16 470F 50V J NP0 2012 R TP C756 0CH6471K416 470F 50V J NP0 2012 R TP C757 0CH6471K416 470F 50V J NP0 2012 R TP C758 0CH6101K416 100PF 50V J NP0 2012 R TP C83 0CH6102K406 1000PF 50V J SL 2012 R TP C86 0CH6102K406 1000PF 50V J SL 2012 R TP C924 0CH6050K116 5PF 50V D NP0 2012 R TP C925 0CH6050K116 5PF 50V D NP0 2012 R TP C129 181 007F MPE ECQ V1H224JL3 TR 50V 0 C130 181 007F MPE ECQ V1H224JL3 TR 50V...

Page 27: ...PF 2012 50V 10 B Y5P R C629 0CH3823K516 82000PF 2012 50V 10 B Y5P R C632 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C633 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C634 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C635 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C636 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C637 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C638 0...

Page 28: ...6A 47000PF 1608 50V 10 R TP X7R C612 0CK473CK56A 47000PF 1608 50V 10 R TP X7R C613 0CK473CK56A 47000PF 1608 50V 10 R TP X7R DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C626 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C7 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C70 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C71 0CK106EF56A 10UF 3216 16V 10 X7R R TP C72 0CK106EF56A 10UF 3216 16V 10 X7R R TP C...

Page 29: ...7UF 16V 20 105STD CYL R T C863 0CH8476F691 47UF 16V 20 105STD CYL R T C87 0CH8476F691 47UF 16V 20 105STD CYL R T C88 0CH8476H691 47UF 25V 20 105STD CYL R T DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C900 0CH8476F691 47UF 16V 20 105STD CYL R T C953 0CH8476F691 47UF 16V 20 105STD CYL R T C956 0CH8476H691 47UF 25V 20 105STD CYL R T C957 0CH8476F691 47UF 16V 20 105STD CYL R T C959 0...

Page 30: ...2 080JT CERATEC 2012M L204 6210TCE001A HB 1S2012 080JT CERATEC 2012M L205 6210TCE001A HB 1S2012 080JT CERATEC 2012M L207 6210TCE001A HB 1S2012 080JT CERATEC 2012M L208 6210TCE001A HB 1S2012 080JT CERATEC 2012M DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L209 6210TCE001A HB 1S2012 080JT CERATEC 2012M L210 6210TCE001A HB 1S2012 080JT CERATEC 2012M L603 6210TCE001A HB 1S2012 080JT C...

Page 31: ...IPTION SPECIFICATION R713 0RH0752D622 75 1 10W 5 D R TP R715 0RH1202D622 12K 1 10W 5 D R TP R716 0RH0752D622 75 1 10W 5 D R TP R719 0RH1502D622 15K 1 10W 5 D R TP R725 0RH1000D622 100 1 10W 5 D R TP R729 0RH1000D622 100 1 10W 5 D R TP R730 0RH1000D622 100 1 10W 5 D R TP R737 0RH4701D622 4 7K 1 10W 5 D R TP R738 0RH4701D622 4 7K 1 10W 5 D R TP R755 0RH0102D622 10 1 10W 5 D R TP R756 0RH0102D622 10 ...

Page 32: ... R TP R123 0RJ2202D677 22K OHM 1 10 W 5 1608 R TP R124 0RJ1500D677 150 OHM 1 10 W 5 1608 R TP DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R125 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R127 0RJ3301D677 3 3K OHM 1 10 W 5 1608 R TP R130 0RJ6801D477 6 8K OHM 1 10 W 1 1608 R TP R1300 0RJ6801D477 6 8K OHM 1 10 W 1 1608 R TP R1302 0RJ2202D477 22K OHM 1 10 W 1 1608 R TP R1303 0RJ6801D477 ...

Page 33: ...608 R TP R720 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R721 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R722 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R727 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R728 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R73 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP R731 0RJ4701D677 4 7K OHM 1 10 W 5 1608 R TP R739 0RJ0222D677 22 OHM 1 ...

Page 34: ...4K566 0 1UF 50V 10 X7R 2012 R TP IC1501 0INE163110A UPD16311GC AB6 FIP DRIV 52PQF IC1502 0IKE657830B KID65783AF 20PIN SOP TRAY TR DATE 2004 07 13 S AL LOC NO PART NO DESCRIPTION SPECIFICATION Q1500 0TR387500AA CHIP 2SC3875S ALY BK KEC Q1501 0TR387500AA CHIP 2SC3875S ALY BK KEC Q1502 0TR387500AA CHIP 2SC3875S ALY BK KEC Q1503 0TR387500AA CHIP 2SC3875S ALY BK KEC Q1504 0TR387500AA CHIP 2SC3875S ALY ...

Page 35: ...0LA0102K119 10UH K 2 3 3 4 TP LED1501 6301T00001A YANGWOO LED ASSEMBLY PAL 26 C2001 0CH6471K416 470F 50V J NP0 2012 R TP C2002 0CH6471K416 470F 50V J NP0 2012 R TP C2003 0CH6471K416 470F 50V J NP0 2012 R TP C2004 0CH6471K416 470F 50V J NP0 2012 R TP C2005 0CH6471K416 470F 50V J NP0 2012 R TP R2001 0RH0752D622 75 1 10W 5 D R TP R2002 0RH0752D622 75 1 10W 5 D R TP R2003 0RH0752D622 75 1 10W 5 D R TP...

Page 36: ...Date 2004 05 07 P No 3854TP3001A ...

Page 37: ...Date 2004 05 07 P No 3854TP3001A ...

Page 38: ...Jul 2004 Printed in Korea P NO 3828TSL103Z ...