Related Manuals for LG 42LC46
Summary of Contents for LG 42LC46
-
Page 1: Service Manual
LCD TV SERVICE MANUAL CHASSIS : LD73A MODEL : 42LC46 42LC46-ZC CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. -
Page 2: Table Of Contents
CONTENTS CONTENTS ....................2 PRODUCT SAFETY ..................3 SPECIFICATION ..................6 ADJUSTMENT INSTRUCTION ...............14 TROUBLE SHOOTING ................17 BLOCK DIAGRAM...................25 EXPLODED VIEW .................. 26 REPLACEMENT PARTS LIST ............... 28 SVC. SHEET ....................- 2 -... -
Page 3: Product Safety
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. -
Page 4: Servicing Precautions
SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service unit under test. manual and its supplements and addenda, read and follow the 2. After removing an electrical assembly equipped with ES SAFETY PRECAUTIONS on page 3 of this publication. devices, place the assembly on a conductive surface such as NOTE: If unforeseen circumstances create conflict between the aluminum foil, to prevent electrostatic charge buildup or... - Page 5 IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through Circuit Board Foil Repair which the IC leads are inserted and then bent flat against the Excessive heat applied to the copper foil of any printed circuit circuit foil. When holes are the slotted type, the following technique board will weaken the adhesive that bonds the foil to the circuit should be used to remove and replace the IC.
-
Page 6: Specification
Picture Size 26 inch 26LC45/26LC46/26LC55 32 inch 32LC45/32LC46/32LC55/32LC56 37 inch 37LC45/37LC46/37LC55 42 inch 42LC45/42LC46/42LC55 Tuning System FVS 100 program PAL, 200 PR.(Option) Operating Environment 1) Temp : 0 ~ 40 deg 2) Humidity : 10 ~ 90 % Storage Environment... - Page 7 32” TFT WXGA LCD 32LC45/32LC46/32LC55/32LC56 37” TFT WXGA LCD 37LC45/37LC46/37LC55 42” TFT WXGA LCD 42LC45/42LC46/42LC55 Frequency range H : 45 ~ 50Khz, V : 47 ~ 63Hz 26, 32, 37 inch H : 44.65 ~ 50.35Khz, V : 47 ~ 63Hz...
- Page 8 3. Optical Feature 3-1. 26” LCD Module-LPL Item Specification Min. Typ. Max. Remark Viewing Angle<CR>10> R/L, U/D 178, 178 Luminance Luminance (cd/m 26” Variation MAX / MIN Contrast Ratio CR(26”) All white/All black (With AI)(26”) 1000 1400 All white/All black CIE Color Coordinates White Typ.
- Page 9 3-4. Optical Feature(37” LCD Module) Item Specification Min. Typ. Max. Remark Viewing Angle<CR>10> R/L, U/D 178, 178 Luminance Luminance (cd/m 37” Variation MAX / MIN Contrast Ratio CR(37”) All white/All black (With AI)(32”) 1200 1600 All white/All black CIE Color Coordinates White Typ.
- Page 10 4. Component Video Input (Y, P Specification Remark Resolution H-freq(kHz) V-freq(Hz) 720 x 480 15.73 60.00 SDTV, DVD 480i 720 x 480 15.63 59.94 SDTV, DVD 480i 720 x 480 31.47 59.94 480p 720 x 576 15.625 50.00 SDTV, DVD 625 Line 720 x 576 31.25 50.00...
- Page 11 6. HDMI DTV - HDMI DTV Table Resolution H-freq.(kHz) V-freq.(Hz) Pixel clock(MHz) Remark Proposed 640 x 480 31.50 59.94 25.175 SDTV 480p 60Hz 640 x 480 31.50 25.20 SDTV 480p 60Hz 720 x 480 31.47 59.94 27.00 SDTV 480p 60Hz 720 x 480 31.47 27.027...
- Page 12 * HDMI EDID DATA 1) HDMI 1 2) HDMI 2 - 12 -...
- Page 13 7. Mechanical specification 1) 26LC45/26LC55(TBD) Item Content Unit Remark Product Widt(W) Length(D) Height(H) Dimension Before Packing 676.4 529.2 With Stant After Packing Box Out Size Product Only SET 10.04 With BOX 13.04 2) 32LC45(TBD) Item Content Unit Remark Product Widt(W) Length(D) Height(H) Dimension...
-
Page 14: Adjustment Instruction
[Channel Download] [Write Batch]. This spec. sheet is applied to all of the LD73A chassis Next, select proper binary file(*.bin) including the CH manufactured at LG TV Plant all over the world. information for each model at [Channel Download] => [NVRAM File]. - Page 15 4.1.1 Method of Auto RF / AV / S-VIDEO Color Balance 4.3 Adjustment of Component (PAL_BGDHI). [ Required Equipments 1) Input the Video Signal: 7 Color Bar signal into AV3. Remote controller for adjustment 2) Set the PSM to Dynamic mode in the Picture menu. MSPG-925FS Pattern Generator.
-
Page 16: White Balance
5.1 Manual white Balance One of R Gain / G Gain / B Gain should be kept on 80, and others are controlled lowering from 80 1) Press 'power on' of the control R/C, set heat run to white by pressing G , and heat run over 15 minutes (Set: RS-233 Host: PC, Baud Rate: 115200bps, Download: Cortez). -
Page 17: Troubleshooting
TROUBLESHOOTING - 17 -... - Page 18 - 18 -...
- Page 19 - 19 -...
- Page 20 - 20 -...
- Page 21 - 21 -...
- Page 22 - 22 -...
- Page 23 - 23 -...
- Page 24 - 24 -...
-
Page 25: Block Diagram
BLOCK DIAGRAM - 25 -... -
Page 26: Exploded View
EXPLODED VIEW - 26 -... -
Page 27: Exploded View Parts List
Speaker,Full Range, EN1562C-6712 ND 10W 8OHM 82DB 100HZ 193.5 X 42 X 39.9 LUG KOREA TOPTONE EAJ36547901 LCD,Module-TFT, LC420WX6-SLA2 WXGA 42INCH 1366X768 500CD COLOR 72% 16/9 1000:1(DCR 5000:1) 5ms(GTG),Zero RT Pol. 10000K LG PHILIPS LCD ABJ31687105 Cabinet Assembly, 42LC4R-ZA LP78A 42" CABINET ASSY CSKD ACQ31687017 Cover Assembly,Rear, 42LC45-ZA LD73A 42"... -
Page 28: Replacement Parts List
LOC. NO. PART NO. DESCRIPTION / SPECIFICATION ACCESSORY C524 0CE477WF6DC "Capacitor,AL,Chip"MVK10TP16VC470M 470uF C527 0CE107WF6DC "Capacitor,AL,Chip"MVK6.3TP16VC100M 100uF MFL34441603 "Manual,Owners" PRINTING USER LD61C LG C528 0CE227WF6DC "Capacitor,AL,Chip"MVK8.0TP16VC220M 220uF MKJ32022813 Remote ControllerCOMPLEX LD73A 26LC4 EU C533 0CE107WF6DC "Capacitor,AL,Chip"MVK6.3TP16VC100M 100uF 3550V00590A CoverMOLD BATTERY TN-50PY2... - Page 29 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C971 0CE107WF6DC "Capacitor,AL,Chip"MVK6.3TP16VC100M 100uF C122 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C975 0CE107WF6DC "Capacitor,AL,Chip"MVK6.3TP16VC100M 100uF C123 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C981 0CE476WF6DC "Capacitor,AL,Chip"MVK6.3TP16VC47M 47uF 2 C1234 0CK102CK56A "Capacitor,Ceramic,Chip"0603B102K500CT 1nF 10% C1302 0CE108EH618 "Capacitor,AL,Radial"KMG5.0TP25VB1000M 1000...
- Page 30 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C1357 0CC221CK41A "Capacitor,Ceramic,Chip"C1608C0G1H221JT 220pF C148 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C1358 0CH2122K516 "Capacitor,Ceramic,Chip"0805B122K500CT 1.2nF 1 C149 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C1359 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C150 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C136 0CK104CF56A...
- Page 31 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C194 0CK822CK46A "Capacitor,Ceramic,Chip"0603B822J500CT 8.2nF 1 C415 0CK104CF56A "Capacitor,Ceramic,Chip"0603B104K160CT 100nF 1 C195 0CC220CK41A "Capacitor,Ceramic,Chip"C1608C0G1H220JT 22pF 5 C429 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C196 0CC100CK41A "Capacitor,Ceramic,Chip"C1608C0G1H100JT 10pF 5 C430 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C197...
- Page 32 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C710 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C776 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C711 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C777 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C712 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C778 0CK104CK56A "Capacitor,Ceramic,Chip"0603B104K500CT 100nF 1 C713...
- Page 33 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION C862 0CK104BF56A "Capacitor,Ceramic,Chip"C1005X7R104KET 100nF 1 ZD104 EAH33945901 "Diode,TVS"CDS3C30GTH 30V 50V 120 C863 0CK104BF56A "Capacitor,Ceramic,Chip"C1005X7R104KET 100nF 1 ZD1100 EAH33946001 "Diode,TVS"CDS3C05GTA 5.6V 6.4V 1 C864 0CK104BF56A "Capacitor,Ceramic,Chip"C1005X7R104KET 100nF 1 ZD1101 EAH33946001 "Diode,TVS"CDS3C05GTA 5.6V 6.4V 1...
- Page 34 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION IC500 EAN36661101 "IC,LDO Voltage Regulator"MIC37100-1.8WS 2.25V ~ L1315 6210TCE001G "Filter,Bead"HH-1M3216-501JT 500OHM IC501 0IPMG00027A "IC,LDO Voltage Regulator"SC156515M-1.8TR 2.2TO5 L1401 6210TCE001G "Filter,Bead"HH-1M3216-501JT 500OHM IC502 EAN36661201 "IC,LDO Voltage Regulator"MIC37100-2.5WS 2.78V ~ L1403 6210TCE001G "Filter,Bead"HH-1M3216-501JT 500OHM...
- Page 35 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION RESISTORs L604 0LC0233002A "Inductor,Multilayer,Chip"FI-B2012-332KJT 3.3UH L1304 0LCTO00019A "Inductor,Wire Wound,Chip"D75C-646CY-220M=P3 22U AR100 0RJ0472C687 "Resistor,Array"RCA86TRJ47R0 47OHM 5% L1305 0LCTO00019A "Inductor,Wire Wound,Chip"D75C-646CY-220M=P3 22U AR101 0RJ0472C687 "Resistor,Array"RCA86TRJ47R0 47OHM 5% L1306 0LCTO00019A "Inductor,Wire Wound,Chip"D75C-646CY-220M=P3 22U AR102...
- Page 36 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1019 0RJ0222D677 "Resistor,Chip"MCR03EZPJ220 22OHM 5% R1117 0RJ0752D677 "Resistor,Chip"MCR03EZPJ750 75OHM 5% R102 0RH1302D622 "Resistor,Chip"MCR10EZHJ133 13KOHM 5% R1118 0RJ1001D677 "Resistor,Chip"MCR03EZPJ102 1KOHM 5% R102 0RH4700D622 "Resistor,Chip"MCR10EZHJ471 470OHM 5% R1119 0RJ1001D677 "Resistor,Chip"MCR03EZPJ102 1KOHM 5% R102...
- Page 37 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1213 0RJ4703D677 "Resistor,Chip"MCR03EZPJ474 470KOHM 5 R1286 0RH0000D622 "Resistor,Chip"MCR10EZHJ000 0OHM 5% 1 R1214 0RJ0752D677 "Resistor,Chip"MCR03EZPJ750 75OHM 5% R1287 0RH0000D622 "Resistor,Chip"MCR10EZHJ000 0OHM 5% 1 R1215 0RJ1001D477 "Resistor,Chip"MCR03EZPF102 1KOHM 1% R1288 0RH0000D622 "Resistor,Chip"MCR10EZHJ000 0OHM 5% 1...
- Page 38 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1355 0RJ0122D677 "Resistor,Chip"MCR03EZPJ120 12OHM 5% R1455 0RJ4701D677 "Resistor,Chip"MCR03EZPJ472 4.7KOHM 5 R1356 0RJ0122D677 "Resistor,Chip"MCR03EZPJ120 12OHM 5% R1456 0RJ1501D677 "Resistor,Chip"MCR03EZPJ152 1.5KOHM 5 R1357 0RJ0122D677 "Resistor,Chip"MCR03EZPJ120 12OHM 5% R146 0RJ2701D677 "Resistor,Chip"MCR03EZPJ272 2.7KOHM 5 R1358...
- Page 39 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R1729 0RJ0332D677 "Resistor,Chip"MCR03EZPJ330 33OHM 5% R184 0RJ3300D677 "Resistor,Chip"MCR03EZPJ331 330OHM 5% R173 0RJ0472D677 "Resistor,Chip"MCR03EZPJ470 47OHM 5% R185 0RJ0472C678 "Resistor,Chip"MCR01MZPJ470 47OHM 5% R1730 0RJ0332D677 "Resistor,Chip"MCR03EZPJ330 33OHM 5% R186 0RJ0472C678 "Resistor,Chip"MCR01MZPJ470 47OHM 5% R1731...
- Page 40 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R245 0RJ0222D677 "Resistor,Chip"MCR03EZPJ220 22OHM 5% R524 0RJ0000D677 "Resistor,Chip"MCR03EZPJ000 0OHM 5% 1 R246 0RJ0222D677 "Resistor,Chip"MCR03EZPJ220 22OHM 5% R526 0RJ2001D677 "Resistor,Chip"MCR03EZPJ202 2KOHM 5% R247 0RJ0222D677 "Resistor,Chip"MCR03EZPJ220 22OHM 5% R527 0RJ2001D677 "Resistor,Chip"MCR03EZPJ202 2KOHM 5%...
- Page 41 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R655 0RJ1002D677 "Resistor,Chip"MCR03EZPJ103 10KOHM 5% R735 0RJ1002D677 "Resistor,Chip"MCR03EZPJ103 10KOHM 5% R657 0RJ0102D677 "Resistor,Chip"MCR03EZPJ100 10OHM 5% R737 0RJ4701D677 "Resistor,Chip"MCR03EZPJ472 4.7KOHM 5 R658 0RJ2201D677 "Resistor,Chip"MCR03EZPJ222 2.2KOHM 5 R739 0RJ1000C678 "Resistor,Chip"MCR01MZPJ101 100OHM 5% R659...
- Page 42 LOC. NO. PART NO. DESCRIPTION / SPECIFICATION LOC. NO. PART NO. DESCRIPTION / SPECIFICATION R816 0RJ0000D677 "Resistor,Chip"MCR03EZPJ000 0OHM 5% 1 J1001 6612B00015C "Jack,DIN"DC1R019WDH. SOCKET 21P R818 0RJ1002D677 "Resistor,Chip"MCR03EZPJ103 10KOHM 5% 6612BBBHN4D "Jack,Fiber Optic"TOTX177 3P TX 2.54MM A R821 0RJ0682C678 "Resistor,Chip"MCR01MZPJ680 68OHM 5% J1101 6612F00099A "Jack,Phone"PEJ024-01 1P 4P STRAIG...
- Page 47 May., 2007 P/NO : MFL36695317 Printed in Korea...