LG MODEL: 42LF66 42LF66-ZE Manual

Page 2 - CONTENTS

- 2 - CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ..........................................................................3 SPECIFICATION .........................................................................

Page 3 - SAFETY PRECAUTIONS; General Guidance; isolation Transformer should always be used; Before returning the receiver to the customer,; AC leakage current check; Leakage Current Cold Check(Antenna Cold Check); Do not use a line Isolation Transformer during this check.; Leakage Current Hot Check circuit; IMPORTANT SAFETY NOTICE

- 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as ...

Page 4 - SERVICING PRECAUTIONS

- 4 - CAUTION: Before servicing receivers covered by this servicemanual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautio...

Page 5 - IC Remove/Replacement; Removal; Diode Removal/Replacement; At IC Connections

- 5 - IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) throughwhich the IC leads are inserted and then bent flat against thecircuit foil. When holes are the slotted type, the following techniqueshould be used to remove and replace the IC. When working withboards using th...

Page 6 - SPECIFICATION

- 6 - 1. Application range This spec sheet is applied to the 37", 42", 47" LCD TV usedLD75A chassis. 2. Specification Each part is tested as below without special appointment. (1) Temperature : 25 ± 5°C(77 ± 9°F), CST : 40 ± 5°C(2) Relative Humidity : 65% ± 10%(3) Power Voltage : S t a n...

Page 14 - Mechanical specification

- 14 - 10. Mechanical specification 10-1. 47LF66 No Item Content Remark 1 Product Width (W) Length (D) Height (H) Dimension Before Packing 1144.5 331 825.6 With Stand After Packing 1230 410 912 2 Product Only SET 37.46 kg With Stand Weight With BOX 44.7 kg 10-2. 42LF66 No Item Content Remark 1 Produ...

Page 15 - ADJUSTMENT INSTRUCTION; Caution; * Use the proper signal cable for EDID Download

- 15 - ADJUSTMENT INSTRUCTION 1. Application Range This spec. sheet is applied to all of the LD75A chassismanufactured at LG TV Plant all over the world.Ex.) LD75A : 37/42/47LB5DF-ZC, 37/42/47LY3DF-ZA 2. Specification 1.1 Because this is not a hot chassis, it is not necessary to use an isolation tra...

Page 16 - Method of Tool Option setting

- 16 - 5. Method of Tool Option setting 5.1. Press ADJ Key in the Adjust remocon.5.2. Select "Tool Option1 and 2" by using (CH+/-) key, and Press Number Key. 5.3. Model Table. 5.4. After changing, push the EXIT Key. 6. ADC Calibration * Before adjusting White-balance , the AV ADC should be d...

Page 19 - TROUBLESHOOTING

- 19 - TROUBLESHOOTING 1. No power (1) Symptom 1) Doesn't minute discharge at module.2) Non does not come in into the front LED. (2) Check follow Plug in power cord No Yes Is plug in power cord? Connect cable. No Is connect the Line Filter and Power Board Cable? Replace fuse. No Is normal the Fuse(F...

Page 22 - In case of occur strange screen into specific mode

- 22 - 4. In case of occur strange screen into specific mode 1) In case of does't display the OSD (1) Symptom 1) LED is green.2) The minute discharge continuously becomes accomplished from module (2) Check follow Is normal the LVDS cable? Replace Power Board. Is the LVDS cable connected well? Cable ...

Page 23 - ) In case of does't display the screen into specific mode; (3) In case of becomes unusual display from RF mode; Block A

- 23 - 2 ) In case of does't display the screen into specific mode (1) Symptom - The screen does not become the display from specific input mode (RF, AV, Component, RGB, DVI). (2) Check follow (1) Check the all input mode should become normality display.(1) Check the Video(Main)/Data(Sub), Video(Mai...

Page 26 - In case of no sound

- 26 - 5. In case of no sound (1) Symptom 1) LED is green.2) Screen display but sound is not output (2) Check follow All input (mode) is no sound? Is the speaker On it men? Set on speaker in menu. Is the speaker Cable normal? Check the Speaker Cable IC1300 operates Normal? Replace IC1300 (MSP4450) I...

Page 27 - L VDS; BLOCK DIAGRAM

- 27 - Common Interface LVDS 51P AV 1 DTV Out MNT Out RGB RS-232 PC AUDIO ST i5100 MPEG Decoder 1.2V 2.5V 3.3V 5V 8V FLI8548H-LF (COR TEZ Plus) Digital V ideo Processor 1.8V 2.5V 3.3V HDMI HDMI S/W 3.3V Power 3.3V ST 5V 12V 6V 19V R L CXA2069Q AUDIO/VIDEO SW 9V MSP4450K Sound Processor 9V 5V ST A333...

Page 28 - MEMO

Page 29 - EXPLODED VIEW

- 29 - 120 120 121 520 510 500 300 200 802 807 820 830 840 900 804 530 600 610 810 400 800 803 805 806 801 EXPLODED VIEW Downloaded From TV-Manual.com Manuals

Page 30 - EXPLODED VIEW PARTS LIST; DESCRIPTION; Plate, PRESS EGI 1.2 FRAME SBHG-A 42LY3 METAL BAR TOP FOR LPL MODULE

- 30 - EXPLODED VIEW PARTS LIST No. PART NO. DESCRIPTION 120 EAB33775101 Speaker,Full Range, EN1562C-6712 ND 10W 8OHM 82DB 100HZ 193.5 X 42 X 39.9 LUG KOREA TOPTONE 121 EAB33893101 Speaker,Tweeter, EN10D-6714 ND 10W 8OHM 82DB 0HZ 68 X 23 X 22.7 LUG KOREA TOPTONE 200 EAJ37267701 LCD,Module-TFT, LC420...

Page 31 - REPLACEMENT PARTS LIST; CAPACITORs

- 31 - A1 MFL36914902 "Manual,Owners" PRINTING USER PD75A LG A2 MKJ32022835 Remote Controller COMPLEX LD75A 47LB5DF- A21 3550V00590A Cover MOLD ABS BATTERY TN-5 A3 6410TEW010A Power Cord "CEE,LP-34A&H05VV-FX3C," A4 341-746B Holder MOLD ABS CABLE Holder A6 SAC30033608 Title 60PY3D...

Page 36 - ICs

- 36 - C865 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C866 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C867 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C868 0CK104BF56A "Capacitor,Ceramic,Chip" C1005X7R104KET 100nF 1 C...

Page 38 - RESISTORs

- 38 - L1307 0LCTO00019A "Inductor,Wire Wound,Chip" D75C-646CY-220M=P3 22U L600 0LCTA00003A "Inductor,Wire Wound,Chip" LEMC3225T6R8M 6.8UH 20 L601 0LCTA00003A "Inductor,Wire Wound,Chip" LEMC3225T6R8M 6.8UH 20 L605 0LCTA00003A "Inductor,Wire Wound,Chip" LEMC3225T6R8M 6...

Page 45 - OTHERs

- 45 - R810 0RJ1001D677 "Resistor,Chip" MCR03EZPJ102 1KOHM 5% R811 0RJ0222D677 "Resistor,Chip" MCR03EZPJ220 22OHM 5% R812 0RJ1002D677 "Resistor,Chip" MCR03EZPJ103 10KOHM 5% R813 0RJ0222C678 "Resistor,Chip" MCR01MZPJ220 22OHM 5% R816 0RJ0000D677 "Resistor,Chip"...

Page 47 - DDR TERMINATION OPTIONs; FAN OPTION

3V3 3.3V 1.2V 1V2 1V2 1.2V 1.2V 1.2VA 2V5 3V3 2V5 3V3 3V3 1V2 1.2VA 3.3V 1.2VA 3V3 3V3 1V25 1.2VA 3V3 3V3 2.5V I2C_SDA0 004:C5 FMI_D[0-15] I2C_SDA1 003:I1 LDD[0-15] 002:K3 PIO2B6 004:A7 I2C_SCL1 003:I1 LDCAS 002:K4 PIO2B7 004:A8 I2C_SCL0 004:C5 FMILBA 003:J4 OUT_LEFT 005:H8 LDDQM0 002:K4 FMIBE1 003:...

Page 48 - V Regulator for TUNER; % MUST BE PLACED NEAR IC100

CVBS 001:L5 DTV_LOUT 013:C5 DTV_ROUT 013:C4 DTV_AUDIO_MUTE_BUF 001:F8 P_6.0V 2.5V 1.8V P_3.3V 5.0V 3.3V P_3.3V 1.2V P_3.3V P_6.0V 1K R523 100 R547 100 R548 2K R527 2K R526 9.31K R522 1% 470uF C524 16V 220uF C528 16V 220uF C534 16V 0.1uF C518 0.1uF C529 0.1uF C530 0.1uF C521 0.1uF C525 0.1uF C537 0.1...

Page 51 - Printed in Korea

Apr., 2007 Printed in Korea P/NO : MFL36631016 Downloaded From TV-Manual.com Manuals