Lg 20LS7D(C)-UB Manual do Utilizador

LCD TVSERVICE MANUALCAUTIONBEFORE SERVICING THE CHASSIS,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.CHASSIS : LA74EMODEL : 20LS7D(C) 20LS7D(C)-UBwebsit

- 10 -ADJUSTMENT INSTRUCTION1. Application ObjectThese instructions are applied to all of the LCD TV, LA74E.2. Notes(1) Because this is not a hot chas

- 11 -3-4. Set Method(1) MCU Select: MTV512M64(2) OptionR/W Option: Auto Write(Verity)Jig Option: MysonTransmit Speed: Medium(3) Check: Just do it wit

5. EDID (The Extended Display Identification Data)/ DDC (Display Data Channel) DownloadThis is the function that enables “Plug and Play".5-1. HDM

- 13 -7. Adjustment of White Balance7-1. Required Equipment(1) Color analyzer (CA-100 or CA210 similar product)(2) Automatic adjustor (with automatic

- 14 -1. TV/CATV doesn't displayCheck TU4002 Pin9(Video output)Can you see the normal signal?Could you measure voltage ofTU4002 & IIC lines?A

- 15 -2. Video doesn't displayCheck J5007 Pin2Can you see the normal waveform?J5007 may have problem. Replace this Jack.Check the input(Pin1) of

- 16 -3. Component doesn't displayCheck J5004Can you see the normal waveform?J5004 may have problem. Replace this Jack.Check the input of Compone

- 17 -4. RGB_PC doesn't displayCheck input connect P7004.Can you see the normal waveform?P7004 may have problem. Replace this Jack.Check the inp

- 18 -5. HDMI doesn't displayCheck input connect J7101.Can you see the normal waveform?J7101 may have problem. Replace this Jack.Check DDC commun

BLOCK DIAGRAM- 19 -CXA2069Q(IC5003)LCDModuleSVHSBCM3550KPB5G(IC1001)MST3382M(IC7004)EEPROMCVBSLCDSTV TunerAT_TU_VMM1731XVBE(IC5001)RGBY PB PRCOM_Y PB

- 2 -CONTENTSCONTENTS ... 2PRODUCT SAFETY ...

- 20 -EXPLODED VIEW300200580520521530531400431430440450120590

- 21 -EXPLODED VIEW PARTS LISTNo. PART NO. DESCRIPTIONEAB35995501 Speaker,Full Range A11 EN1227C-6710 3W 8OHM 80DB 300HZ 31 X 78.5 X 21 LUG KOREA6304

- 22 -C1001 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% 16V 80MA -40TO+C1007 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V X7R -55TO+12C1008 0CK104BF56A C1005X

- 23 -C2603 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V X7R -55TO+12C2604 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V X7R -55TO+12C2605 0CK103BH56A C1005X

- 24 -C4044 0CE107WF6DC MVK6.3TP16VC100M 100uF 20% 16V 80MA -40TO+C4046 0CK104BF56A C1005X7R104KET 100nF 10% 16V X7R -55TO+125C4047 0CE107WF6DC MVK6.3

- 25 -C6001 0CK105CD56A C1608X7R1A105KT 1uF 10% 10V X7R -55TO+125CC6002 0CK103BH56A C1005X7R1E103KT- 10nF 10% 25V X7R -55TO+12C6003 0CK103BH56A C1005X

- 26 -D4005 0DD184009AA KDS184 KDS184 TP KEC - 85V - - - 300MA KECD4005 0DD184009AA KDS184 KDS184 TP KEC - 85V - - - 300MA KECD4007 0DR340009AA MBRS34

- 27 -AR2017 0RJ0222C692 MNR04 M0APJ 220 22OHM 5% 1/16W 1005X4 R/TPAR2200 EBC32260405 MNR04M0APJ680 68OHM 5% 1/16W 4P 8PAR2201 EBC32260405 MNR04M0APJ6

- 28 -R1185 0RJ1000D677 MCR03EZPJ101 100OHM 5% 1/10W 1608 R/TP ROR1234 0RJ1000C678 MCR01MZPJ101 100OHM 5% 1/16W 1005 R/TP ROR1235 0RJ1000C678 MCR01M

- 29 -R3203 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 1005 R/TP - RR4000 0RJ1001C678 MCR01MZPJ102 1KOHM 5% 1/16W 1005 R/TP ROHR4000 0RN6801F409 RN-96T

- 3 -SAFETY PRECAUTIONSMany electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by

- 30 -R4147 0RJ1001C678 MCR01MZPJ102 1KOHM 5% 1/16W 1005 R/TP ROHR4147 0RJ1001C678 MCR01MZPJ102 1KOHM 5% 1/16W 1005 R/TP ROHR4148 0RJ1000C678 MCR01M

- 31 -R6031 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 1005 R/TP - RR6032 0RJ0222C678 MCR01MZPJ220 22OHM 5% 1/16W 1005 R/TP - RR6033 0RJ0222C678 MCR01M

- 32 -R7300 0RJ0332C678 MCR01MZPJ330 33OHM 5% 1/16W 1005 R/TP ROHR7301 0RJ0682D677 MCR03EZPJ680 68OHM 5% 1/10W 1608 R/TP ROHR7302 0RJ0332C678 MCR01M

- 33 -SW4002 140-058B EVQPB205K 1C1P 15VDC 0.02A VERTICAL 160GFSW4003 140-058B EVQPB205K 1C1P 15VDC 0.02A VERTICAL 160GFSW4004 140-058B EVQPB205K 1C1P

Mar., 2007Printed in KoreaP/NO : MFL37186102

- 4 -CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow theSAFETY PRECAUTIONS on page

- 5 -IC Remove/ReplacementSome chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against th

- 6 -SPECIFICATIONNOTE : Specifications and others are subject to change without notice for improvement.4. General Specification(TV)No Item Specificat

5. Chroma & Brightness5.1. FOR 23LC7D (CONDITION : EZ-Picture "Daylight")- 7 -No Item Min Typ Max Unit1 White peak brightness 360 450 cd

- 8 -5.1. FOR 20LC7D (CONDITION : EZ-Picture "Daylight")6. Component Video Input (Y, CB/PB, CR/PR)No Resolution H-freq(kHz) V-freq(Hz) Pixel

No. Item Content Remark1 Product Dimension Width(W) Length(D) Height(H)Before Packing 499.6 175.0 401.4 Head depth : 73.0mmAfter Packing 563.0 173.0 4