LG RT-23LZ50 Page 37 Service Manual Download | Manualshive

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Jun., 2004

Printed in Korea

P/NO : 3828TSL103T

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Summary of Contents for RT-23LZ50

Page 1: ... TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS ML 041A MODEL RT 23LZ50 website http biz LGservice com e mail http www LGEservice com techsup html ...

Page 2: ...ENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 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: ...Specification 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: ...NE2 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 dimmed Red Red dimmed H x V x D H V Sync ON ON OFF ON ON OFF Video Active OFF OFF LPL LPL Power cons...

Page 8: ...Local Key TOP FLOF LIST 10 page 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 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 Color Coordinate...

Page 9: ... HDTV 1080i 59 94Hz NO 1 2 3 4 5 6 7 8 9 10 11 12 13 Resoluton 640 x 480 640 x 480 640 x 480 800 x 600 800 x 600 800 x 600 800 x 600 1024 x 768 1024 x 768 1024 x 768 1280 x 768 1280 x 720 1920 x 1080 H freq kHz 31 469 35 37 500 35 156 37 879 48 077 46 875 48 363 56 476 60 023 47 693 45 00 33 75 V freq Hz 59 94 67 75 00 56 25 60 31 72 18 75 00 60 00 70 06 75 02 60 00 60 00 60 00 Proposed VESA VGA V...

Page 10: ...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 640x480...

Page 11: ...mote control 3 Select Analog for analog data and Digital for digital data 4 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 07 56 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 2F CE 00 31 40 01 01 01 01 45 ...

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: ...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 CYRILLIC ...

Page 14: ... OFF ON OFF ON 11 Figure 1 Cable Connection Windows EDID V1 0 User Manual Operating System MS Windows 98 2000 XP Port Setup Windows 98 Don t need setup Windows 2000 XP Need to Port Setup This program is available to LCD Monitor only 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe c Remove all default number d Add 300 3FF e Click Start button f Click Exit...

Page 15: ...automatic Afteradjustingthescreen W Badjustment Exittwotimes Adjustmentcompleted To enter into the adjustment mode To adjust horizontal line and sub brightness To select the multiple sound mode Mono Stereo or Foreign language To release the adjustment mode To easily adjust the screen according to surrounding brightness To easily adjust sound according to the program type To check component input T...

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 Faill Change module Fail Check panel link Cable or module Pass Pass Pass Pass B Process ...

Page 18: ... 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 19: ...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 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: ...S W MST9883 ADC FLI2300 RAM SM5301 GM5221 SCALER ROM 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 HD_Y Pb Pr HD_Y Pb Pr 3 R L SIDE_COMP SIDE_Y C HD_COMP _ L R CVBS_L R PC_ LR LA7222C SIDE_ LR 3 R G B R G B CVBS_IN PAL IF ...

Page 22: ...o 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 s...

Page 23: ... P101 P902 P802 P105 P106 P202 P1601 P1602 1 2 3 4 5 6 7 8 9 10 WIRING DIAGRAM No Part No 1 2 3 4 5 6 7 8 9 10 Wiring Part List 6631T11020G 6631T20033F 6631T20032J 6631T25019K 6631T20023A 6631T20033T 6631T20033V 6631T20029Z 6631T20029Y 6631T20033E ...

Page 24: ... 24 EXPLODED VIEW 010 020 070 100 110 120 130 140 150 160 090 080 030 040 050 060 170 180 ...

Page 25: ... A V SUB TOTAL BRAND 080 6871TST763A PWB PCB ASSEMBLY SUB RZ RT RM 23LZ50 LED P SW TOTAL BRAND 090 6871TST630A PWB PCB ASSEMBLY SUB RZ 23LZ50 KEY CONTROL TOTAL BRAND 100 4951TKS155A METAL ASSEMBLY FRAME MAIN RZ 23LZ50 4951TKS155B METAL ASSEMBLY FRAME C SKD LPL 110 6871TPT287A PWB PCB ASSEMBLY POWER RZ 23LZ50 POWER TOTAL BRAND AUTOBAHN 23 120 3313TP2024A MAIN TOTAL ASSEMBLY RT 23LZ50 LPL BRAND ML 0...

Page 26: ...2 C1002 0CH3103K516 10000PF 50V 10 B Y5P 2012 C1003 0CH3103K516 10000PF 50V 10 B Y5P 2012 C1004 0CH3103K516 10000PF 50V 10 B Y5P 2012 C1007 0CH3103K516 10000PF 50V 10 B Y5P 2012 C1010 0CK273DK51A 27000PF 2012 50V 10 B Y5P C107 0CK225DFK4A 2 2UF 2012 16V 20 20 F Y5 C109 0CH3103K516 10000PF 50V 10 B Y5P 2012 C11 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C110 0CH3103K516 10000PF 50V 10 B Y5P 2012 C113 0...

Page 27: ...50V 10 X7R 2012 R TP C66 0CK106EF56A 10UF 3216 16V 10 X7R R TP C67 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C700 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C704 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C705 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C75 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C751 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP C76 0CK106EF5...

Page 28: ...78 0CK106EF56A 10UF 3216 16V 10 X7R R TP C8 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C800 0CK105CF94A 1UF 1608 16V 80 20 R TP F DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C801 0CK105CF94A 1UF 1608 16V 80 20 R TP F C802 0CK105CF94A 1UF 1608 16V 80 20 R TP F C803 0CK105CF94A 1UF 1608 16V 80 20 R TP F C9 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C901 0CK103CK51A 0 01UF 1608 50V 10 R TP ...

Page 29: ...20 DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION D703 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 D704 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD201 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD202 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD215 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD216 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD217 0DZ510009EE UDZ S 5 1B TP ROHM K SOD323 ZD218 0DZ510009...

Page 30: ...0 3216 R TC FI C3216 L10 0LC1032101A 10UH 10 3216 R TC FI C3216 L12 0LC1032101A 10UH 10 3216 R TC FI C3216 L16 0LC1032101A 10UH 10 3216 R TC FI C3216 L306 0LC1532101A 15UH 10 3216 R TC FI C3216 L307 0LC1532101A 15UH 10 3216 R TC FI C3216 L308 0LC1532101A 15UH 10 3216 R TC FI C3216 DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION L309 0LC1532101A 15UH 10 3216 R TC FI C3216 L310 0LC1532...

Page 31: ...D622 4 7K 1 10W 5 D R TP R87 0RH1000D622 100 1 10W 5 D R TP R89 0RH1000D622 100 1 10W 5 D R TP R930 0RH3301D622 3 3K 1 10W 5 D R TP R931 0RH3301D622 3 3K 1 10W 5 D R TP R941 0RH1000D622 100 1 10W 5 D R TP R960 0RH1000D622 100 1 10W 5 D R TP R969 0RH1202D622 12K 1 10W 5 D R TP R971 0RH1502D622 15K 1 10W 5 D R TP R974 0RH4701D622 4 7K 1 10W 5 D R TP R976 0RH4701D622 4 7K 1 10W 5 D R TP RA600 0RRZVTA...

Page 32: ... 5 1608 R TP R138 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R139 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION R15 0RJ4700D677 470 OHM 1 10 W 5 1608 R TP R152 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R153 0RJ0000D677 0 OHM 1 10 W 5 1608 R TP R155 0RJ2700D677 270 OHM 1 10 W 5 1608 R TP R157 0RJ2700D677 270 OHM 1 10 W 5 1608 R TP R159 0RJ2700D677 270 O...

Page 33: ...R TP R722 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R727 0RJ1000D677 100 OHM 1 10 W 5 1608 R TP DATE 2004 09 02 S AL LOC NO PART NO DESCRIPTION SPECIFICATION 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 10 W 5 1608 R TP R740 0RJ0222D677 22 OHM 1 10 W 5 1608 R TP R751 0RJ0000D677 0 OHM 1 10 W ...

Page 34: ...2 R1705 0RN2700F409 270 1 6W 1 TA52 R1706 0RN2701F409 2 7K OHM 1 6 W 1 00 TA52 SW1700 140 313A TACT 2LEAD 100G TA LG C D N SW1701 140 313A TACT 2LEAD 100G TA LG C D N SW1702 140 313A TACT 2LEAD 100G TA LG C D N SW1703 140 313A TACT 2LEAD 100G TA LG C D N SW1704 140 313A TACT 2LEAD 100G TA LG C D N SW1705 140 313A TACT 2LEAD 100G TA LG C D N SW1706 140 313A TACT 2LEAD 100G TA LG C D N C1500 0CN1040...

Page 35: ...Date 2004 05 07 P No 3854TP3001A ...

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

Page 37: ...Jun 2004 Printed in Korea P NO 3828TSL103T ...

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